wgengine/netstack: add debug page for TCP forwarder

To help in debugging issues with subnet routers in userspace mode–for
example, hitting the max inflight limit.

Updates tailscale/corp#12184

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Idd922f4ae37695f6598a914c2d050574755ef309

.github/workflows/checklocks.yml

@@ -24,11 +24,5 @@ jobs:
         run: ./tool/go build -o /tmp/checklocks gvisor.dev/gvisor/tools/checklocks/cmd/checklocks
 
       - name: Run checklocks vet
-        # TODO(#12625): add more packages as we add annotations
-        run: |-
-          ./tool/go vet -vettool=/tmp/checklocks \
-            ./envknob           \
-            ./ipn/store/mem     \
-            ./net/stun/stuntest \
-            ./net/wsconn        \
-            ./proxymap
+        # TODO: remove || true once we have applied checklocks annotations everywhere.
+        run: ./tool/go vet -vettool=/tmp/checklocks ./... || true

.github/workflows/go-licenses.yml

@@ -0,0 +1,64 @@
+name: go-licenses
+
+on:
+  # run action when a change lands in the main branch which updates go.mod or
+  # our license template file. Also allow manual triggering.
+  push:
+    branches:
+      - main
+    paths:
+      - go.mod
+      - .github/licenses.tmpl
+      - .github/workflows/go-licenses.yml
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-$${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  update-licenses:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+
+      - name: Install go-licenses
+        run: |
+          go install github.com/google/go-licenses@v1.2.2-0.20220825154955-5eedde1c6584
+
+      - name: Run go-licenses
+        env:
+          # include all build tags to include platform-specific dependencies
+          GOFLAGS: "-tags=android,cgo,darwin,freebsd,ios,js,linux,openbsd,wasm,windows"
+        run: |
+          [ -d licenses ] || mkdir licenses
+          go-licenses report tailscale.com/cmd/tailscale tailscale.com/cmd/tailscaled > licenses/tailscale.md --template .github/licenses.tmpl
+
+      - name: Get access token
+        uses: tibdex/github-app-token@b62528385c34dbc9f38e5f4225ac829252d1ea92 # v1.8.0
+        id: generate-token
+        with:
+          app_id: ${{ secrets.LICENSING_APP_ID }}
+          installation_id: ${{ secrets.LICENSING_APP_INSTALLATION_ID }}
+          private_key: ${{ secrets.LICENSING_APP_PRIVATE_KEY }}
+
+      - name: Send pull request
+        uses: peter-evans/create-pull-request@284f54f989303d2699d373481a0cfa13ad5a6666 #v5.0.1
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+          author: License Updater <noreply+license-updater@tailscale.com>
+          committer: License Updater <noreply+license-updater@tailscale.com>
+          branch: licenses/cli
+          commit-message: "licenses: update tailscale{,d} licenses"
+          title: "licenses: update tailscale{,d} licenses"
+          body: Triggered by ${{ github.repository }}@${{ github.sha }}
+          signoff: true
+          delete-branch: true
+          team-reviewers: opensource-license-reviewers

.github/workflows/installer.yml

@@ -32,6 +32,7 @@ jobs:
           - "ubuntu:18.04"
           - "ubuntu:20.04"
           - "ubuntu:22.04"
+          - "ubuntu:22.10"
           - "ubuntu:23.04"
           - "elementary/docker:stable"
           - "elementary/docker:unstable"
@@ -67,11 +68,6 @@ jobs:
       image: ${{ matrix.image }}
       options: --user root
     steps:
-    - name: install dependencies (pacman)
-      # Refresh the package databases to ensure that the tailscale package is
-      # defined.
-      run: pacman -Sy
-      if: contains(matrix.image, 'archlinux')
     - name: install dependencies (yum)
       # tar and gzip are needed by the actions/checkout below.
       run: yum install -y --allowerasing tar gzip ${{ matrix.deps }}
@@ -95,10 +91,7 @@ jobs:
         || contains(matrix.image, 'parrotsec')
         || contains(matrix.image, 'kalilinux')
     - name: checkout
-      # We cannot use v4, as it requires a newer glibc version than some of the
-      # tested images provide. See
-      # https://github.com/actions/checkout/issues/1487
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: run installer
       run: scripts/installer.sh
       # Package installation can fail in docker because systemd is not running

.github/workflows/kubemanifests.yaml

@@ -2,8 +2,8 @@ name: "Kubernetes manifests"
 on:
   pull_request:
    paths: 
-   - 'cmd/k8s-operator/**'
-   - 'k8s-operator/**'
+   - './cmd/k8s-operator/**'
+   - './k8s-operator/**'
    - '.github/workflows/kubemanifests.yaml'
 
 # Cancel workflow run if there is a newer push to the same PR for which it is

.github/workflows/ssh-integrationtest.yml

@@ -1,23 +0,0 @@
-# Run the ssh integration tests with `make sshintegrationtest`.
-# These tests can also be running locally.
-name: "ssh-integrationtest"
-
-concurrency:
-  group: ${{ github.workflow }}-$${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-on:
-  pull_request:
-    paths:
-      - "ssh/**"
-      - "tempfork/gliderlabs/ssh/**"
-      - ".github/workflows/ssh-integrationtest"
-jobs:
-  ssh-integrationtest:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v4
-      - name: Run SSH integration tests
-        run: |
-          make sshintegrationtest

.github/workflows/test.yml

@@ -194,7 +194,7 @@ jobs:
     - name: chown
       run: chown -R $(id -u):$(id -g) $PWD
     - name: privileged tests
-      run: ./tool/go test ./util/linuxfw ./derp/xdp
+      run: ./tool/go test ./util/linuxfw
 
   vm:
     runs-on: ["self-hosted", "linux", "vm"]
@@ -206,7 +206,7 @@ jobs:
     - name: Run VM tests
       run: ./tool/go test ./tstest/integration/vms -v -no-s3 -run-vm-tests -run=TestRunUbuntu2004
       env:
-        HOME: "/var/lib/ghrunner/home"
+        HOME: "/tmp"
         TMPDIR: "/tmp"
         XDG_CACHE_HOME: "/var/lib/ghrunner/cache"
 
@@ -254,6 +254,9 @@ jobs:
             goarch: amd64
           - goos: openbsd
             goarch: amd64
+          # Plan9 (disabled until 3p dependencies are fixed)
+          # - goos: plan9
+          #   goarch: amd64
 
     runs-on: ubuntu-22.04
     steps:
@@ -302,47 +305,6 @@ jobs:
         GOOS: ios
         GOARCH: arm64
 
-  crossmin: # cross-compile for platforms where we only check cmd/tailscale{,d}
-    strategy:
-      fail-fast: false # don't abort the entire matrix if one element fails
-      matrix:
-        include:
-          # Plan9
-          - goos: plan9
-            goarch: amd64
-          # AIX
-          - goos: aix
-            goarch: ppc64
-
-    runs-on: ubuntu-22.04
-    steps:
-    - name: checkout
-      uses: actions/checkout@v4
-    - name: Restore Cache
-      uses: actions/cache@v3
-      with:
-        # Note: unlike the other setups, this is only grabbing the mod download
-        # cache, rather than the whole mod directory, as the download cache
-        # contains zips that can be unpacked in parallel faster than they can be
-        # fetched and extracted by tar
-        path: |
-          ~/.cache/go-build
-          ~/go/pkg/mod/cache
-          ~\AppData\Local\go-build
-        # The -2- here should be incremented when the scheme of data to be
-        # cached changes (e.g. path above changes).
-        key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
-        restore-keys: |
-          ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}
-          ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-
-    - name: build core
-      run: ./tool/go build ./cmd/tailscale ./cmd/tailscaled
-      env:
-        GOOS: ${{ matrix.goos }}
-        GOARCH: ${{ matrix.goarch }}
-        GOARM: ${{ matrix.goarm }}
-        CGO_ENABLED: "0"
-
   android:
     # similar to cross above, but android fails to build a few pieces of the
     # repo. We should fix those pieces, they're small, but as a stepping stone,
@@ -356,7 +318,7 @@ jobs:
       # some Android breakages early.
       # TODO(bradfitz): better; see https://github.com/tailscale/tailscale/issues/4482
     - name: build some
-      run: ./tool/go install ./net/netns ./ipn/ipnlocal ./wgengine/magicsock/ ./wgengine/ ./wgengine/router/ ./wgengine/netstack ./util/dnsname/ ./ipn/ ./net/netmon ./wgengine/router/ ./tailcfg/ ./types/logger/ ./net/dns ./hostinfo ./version
+      run: ./tool/go install ./net/netns ./ipn/ipnlocal ./wgengine/magicsock/ ./wgengine/ ./wgengine/router/ ./wgengine/netstack ./util/dnsname/ ./ipn/ ./net/interfaces ./wgengine/router/ ./tailcfg/ ./types/logger/ ./net/dns ./hostinfo ./version
       env:
         GOOS: android
         GOARCH: arm64
@@ -480,7 +442,7 @@ jobs:
       uses: actions/checkout@v4
     - name: check that 'go generate' is clean
       run: |
-        pkgs=$(./tool/go list ./... | grep -Ev 'dnsfallback|k8s-operator|xdp')
+        pkgs=$(./tool/go list ./... | grep -Ev 'dnsfallback|k8s-operator')
         ./tool/go generate $pkgs
         echo
         echo

.gitignore

@@ -9,7 +9,6 @@
 
 cmd/tailscale/tailscale
 cmd/tailscaled/tailscaled
-ssh/tailssh/testcontainers/tailscaled
 
 # Test binary, built with `go test -c`
 *.test

Makefile

@@ -1,5 +1,5 @@
 IMAGE_REPO ?= tailscale/tailscale
-SYNO_ARCH ?= "x86_64"
+SYNO_ARCH ?= "amd64"
 SYNO_DSM ?= "7"
 TAGS ?= "latest"
 
@@ -100,23 +100,6 @@ publishdevoperator: ## Build and publish k8s-operator image to location specifie
 	@test "${REPO}" != "ghcr.io/tailscale/k8s-operator" || (echo "REPO=... must not be ghcr.io/tailscale/k8s-operator" && exit 1)
 	TAGS="${TAGS}" REPOS=${REPO} PLATFORM=${PLATFORM} PUSH=true TARGET=operator ./build_docker.sh
 
-publishdevnameserver: ## Build and publish k8s-nameserver image to location specified by ${REPO}
-	@test -n "${REPO}" || (echo "REPO=... required; e.g. REPO=ghcr.io/${USER}/tailscale" && exit 1)
-	@test "${REPO}" != "tailscale/tailscale" || (echo "REPO=... must not be tailscale/tailscale" && exit 1)
-	@test "${REPO}" != "ghcr.io/tailscale/tailscale" || (echo "REPO=... must not be ghcr.io/tailscale/tailscale" && exit 1)
-	@test "${REPO}" != "tailscale/k8s-nameserver" || (echo "REPO=... must not be tailscale/k8s-nameserver" && exit 1)
-	@test "${REPO}" != "ghcr.io/tailscale/k8s-nameserver" || (echo "REPO=... must not be ghcr.io/tailscale/k8s-nameserver" && exit 1)
-	TAGS="${TAGS}" REPOS=${REPO} PLATFORM=${PLATFORM} PUSH=true TARGET=k8s-nameserver ./build_docker.sh
-
-.PHONY: sshintegrationtest
-sshintegrationtest: ## Run the SSH integration tests in various Docker containers
-	@GOOS=linux GOARCH=amd64 ./tool/go test -tags integrationtest -c ./ssh/tailssh -o ssh/tailssh/testcontainers/tailssh.test && \
-	GOOS=linux GOARCH=amd64 ./tool/go build -o ssh/tailssh/testcontainers/tailscaled ./cmd/tailscaled && \
-	echo "Testing on ubuntu:focal" && docker build --build-arg="BASE=ubuntu:focal" -t ssh-ubuntu-focal ssh/tailssh/testcontainers && \
-	echo "Testing on ubuntu:jammy" && docker build --build-arg="BASE=ubuntu:jammy" -t ssh-ubuntu-jammy ssh/tailssh/testcontainers && \
-	echo "Testing on ubuntu:mantic" && docker build --build-arg="BASE=ubuntu:mantic" -t ssh-ubuntu-mantic ssh/tailssh/testcontainers && \
-	echo "Testing on ubuntu:noble" && docker build --build-arg="BASE=ubuntu:noble" -t ssh-ubuntu-noble ssh/tailssh/testcontainers
-
 help: ## Show this help
 	@echo "\nSpecify a command. The choices are:\n"
 	@grep -hE '^[0-9a-zA-Z_-]+:.*?## .*$$' ${MAKEFILE_LIST} | awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[0;36m%-20s\033[m %s\n", $$1, $$2}'

VERSION.txt

@@ -1 +1 @@
-1.69.0
+1.61.0

appc/appconnector.go

@@ -15,7 +15,6 @@ import (
 	"slices"
 	"strings"
 	"sync"
-	"time"
 
 	xmaps "golang.org/x/exp/maps"
 	"golang.org/x/net/dns/dnsmessage"
@@ -24,49 +23,8 @@ import (
 	"tailscale.com/util/dnsname"
 	"tailscale.com/util/execqueue"
 	"tailscale.com/util/mak"
-	"tailscale.com/util/slicesx"
 )
 
-// rateLogger responds to calls to update by adding a count for the current period and
-// calling the callback if any previous period has finished since update was last called
-type rateLogger struct {
-	interval    time.Duration
-	start       time.Time
-	periodStart time.Time
-	periodCount int64
-	now         func() time.Time
-	callback    func(int64, time.Time, int64)
-}
-
-func (rl *rateLogger) currentIntervalStart(now time.Time) time.Time {
-	millisSince := now.Sub(rl.start).Milliseconds() % rl.interval.Milliseconds()
-	return now.Add(-(time.Duration(millisSince)) * time.Millisecond)
-}
-
-func (rl *rateLogger) update(numRoutes int64) {
-	now := rl.now()
-	periodEnd := rl.periodStart.Add(rl.interval)
-	if periodEnd.Before(now) {
-		if rl.periodCount != 0 {
-			rl.callback(rl.periodCount, rl.periodStart, numRoutes)
-		}
-		rl.periodCount = 0
-		rl.periodStart = rl.currentIntervalStart(now)
-	}
-	rl.periodCount++
-}
-
-func newRateLogger(now func() time.Time, interval time.Duration, callback func(int64, time.Time, int64)) *rateLogger {
-	nowTime := now()
-	return &rateLogger{
-		callback:    callback,
-		now:         now,
-		interval:    interval,
-		start:       nowTime,
-		periodStart: nowTime,
-	}
-}
-
 // RouteAdvertiser is an interface that allows the AppConnector to advertise
 // newly discovered routes that need to be served through the AppConnector.
 type RouteAdvertiser interface {
@@ -78,19 +36,6 @@ type RouteAdvertiser interface {
 	UnadvertiseRoute(...netip.Prefix) error
 }
 
-// RouteInfo is a data structure used to persist the in memory state of an AppConnector
-// so that we can know, even after a restart, which routes came from ACLs and which were
-// learned from domains.
-type RouteInfo struct {
-	// Control is the routes from the 'routes' section of an app connector acl.
-	Control []netip.Prefix `json:",omitempty"`
-	// Domains are the routes discovered by observing DNS lookups for configured domains.
-	Domains map[string][]netip.Addr `json:",omitempty"`
-	// Wildcards are the configured DNS lookup domains to observe. When a DNS query matches Wildcards,
-	// its result is added to Domains.
-	Wildcards []string `json:",omitempty"`
-}
-
 // AppConnector is an implementation of an AppConnector that performs
 // its function as a subsystem inside of a tailscale node. At the control plane
 // side App Connector routing is configured in terms of domains rather than IP
@@ -104,9 +49,6 @@ type AppConnector struct {
 	logf            logger.Logf
 	routeAdvertiser RouteAdvertiser
 
-	// storeRoutesFunc will be called to persist routes if it is not nil.
-	storeRoutesFunc func(*RouteInfo) error
-
 	// mu guards the fields that follow
 	mu sync.Mutex
 
@@ -122,67 +64,14 @@ type AppConnector struct {
 
 	// queue provides ordering for update operations
 	queue execqueue.ExecQueue
-
-	writeRateMinute *rateLogger
-	writeRateDay    *rateLogger
 }
 
 // NewAppConnector creates a new AppConnector.
-func NewAppConnector(logf logger.Logf, routeAdvertiser RouteAdvertiser, routeInfo *RouteInfo, storeRoutesFunc func(*RouteInfo) error) *AppConnector {
-	ac := &AppConnector{
+func NewAppConnector(logf logger.Logf, routeAdvertiser RouteAdvertiser) *AppConnector {
+	return &AppConnector{
 		logf:            logger.WithPrefix(logf, "appc: "),
 		routeAdvertiser: routeAdvertiser,
-		storeRoutesFunc: storeRoutesFunc,
 	}
-	if routeInfo != nil {
-		ac.domains = routeInfo.Domains
-		ac.wildcards = routeInfo.Wildcards
-		ac.controlRoutes = routeInfo.Control
-	}
-	ac.writeRateMinute = newRateLogger(time.Now, time.Minute, func(c int64, s time.Time, l int64) {
-		ac.logf("routeInfo write rate: %d in minute starting at %v (%d routes)", c, s, l)
-	})
-	ac.writeRateDay = newRateLogger(time.Now, 24*time.Hour, func(c int64, s time.Time, l int64) {
-		ac.logf("routeInfo write rate: %d in 24 hours starting at %v (%d routes)", c, s, l)
-	})
-	return ac
-}
-
-// ShouldStoreRoutes returns true if the appconnector was created with the controlknob on
-// and is storing its discovered routes persistently.
-func (e *AppConnector) ShouldStoreRoutes() bool {
-	return e.storeRoutesFunc != nil
-}
-
-// storeRoutesLocked takes the current state of the AppConnector and persists it
-func (e *AppConnector) storeRoutesLocked() error {
-	if !e.ShouldStoreRoutes() {
-		return nil
-	}
-
-	// log write rate and write size
-	numRoutes := int64(len(e.controlRoutes))
-	for _, rs := range e.domains {
-		numRoutes += int64(len(rs))
-	}
-	e.writeRateMinute.update(numRoutes)
-	e.writeRateDay.update(numRoutes)
-
-	return e.storeRoutesFunc(&RouteInfo{
-		Control:   e.controlRoutes,
-		Domains:   e.domains,
-		Wildcards: e.wildcards,
-	})
-}
-
-// ClearRoutes removes all route state from the AppConnector.
-func (e *AppConnector) ClearRoutes() error {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-	e.controlRoutes = nil
-	e.domains = nil
-	e.wildcards = nil
-	return e.storeRoutesLocked()
 }
 
 // UpdateDomainsAndRoutes starts an asynchronous update of the configuration
@@ -236,26 +125,10 @@ func (e *AppConnector) updateDomains(domains []string) {
 		for _, wc := range e.wildcards {
 			if dnsname.HasSuffix(d, wc) {
 				e.domains[d] = addrs
-				delete(oldDomains, d)
 				break
 			}
 		}
 	}
-
-	// Everything left in oldDomains is a domain we're no longer tracking
-	// and if we are storing route info we can unadvertise the routes
-	if e.ShouldStoreRoutes() {
-		toRemove := []netip.Prefix{}
-		for _, addrs := range oldDomains {
-			for _, a := range addrs {
-				toRemove = append(toRemove, netip.PrefixFrom(a, a.BitLen()))
-			}
-		}
-		if err := e.routeAdvertiser.UnadvertiseRoute(toRemove...); err != nil {
-			e.logf("failed to unadvertise routes on domain removal: %v: %v: %v", xmaps.Keys(oldDomains), toRemove, err)
-		}
-	}
-
 	e.logf("handling domains: %v and wildcards: %v", xmaps.Keys(e.domains), e.wildcards)
 }
 
@@ -279,14 +152,6 @@ func (e *AppConnector) updateRoutes(routes []netip.Prefix) {
 
 	var toRemove []netip.Prefix
 
-	// If we're storing routes and know e.controlRoutes is a good
-	// representation of what should be in AdvertisedRoutes we can stop
-	// advertising routes that used to be in e.controlRoutes but are not
-	// in routes.
-	if e.ShouldStoreRoutes() {
-		toRemove = routesWithout(e.controlRoutes, routes)
-	}
-
 nextRoute:
 	for _, r := range routes {
 		for _, addr := range e.domains {
@@ -305,9 +170,6 @@ nextRoute:
 	}
 
 	e.controlRoutes = routes
-	if err := e.storeRoutesLocked(); err != nil {
-		e.logf("failed to store route info: %v", err)
-	}
 }
 
 // Domains returns the currently configured domain list.
@@ -442,10 +304,8 @@ func (e *AppConnector) ObserveDNSResponse(res []byte) {
 			}
 		}
 
-		if len(toAdvertise) > 0 {
-			e.logf("[v2] observed new routes for %s: %s", domain, toAdvertise)
-			e.scheduleAdvertisement(domain, toAdvertise...)
-		}
+		e.logf("[v2] observed new routes for %s: %s", domain, toAdvertise)
+		e.scheduleAdvertisement(domain, toAdvertise...)
 	}
 }
 
@@ -520,9 +380,6 @@ func (e *AppConnector) scheduleAdvertisement(domain string, routes ...netip.Pref
 				e.logf("[v2] advertised route for %v: %v", domain, addr)
 			}
 		}
-		if err := e.storeRoutesLocked(); err != nil {
-			e.logf("failed to store route info: %v", err)
-		}
 	})
 }
 
@@ -543,15 +400,3 @@ func (e *AppConnector) addDomainAddrLocked(domain string, addr netip.Addr) {
 func compareAddr(l, r netip.Addr) int {
 	return l.Compare(r)
 }
-
-// routesWithout returns a without b where a and b
-// are unsorted slices of netip.Prefix
-func routesWithout(a, b []netip.Prefix) []netip.Prefix {
-	m := make(map[netip.Prefix]bool, len(b))
-	for _, p := range b {
-		m[p] = true
-	}
-	return slicesx.Filter(make([]netip.Prefix, 0, len(a)), a, func(p netip.Prefix) bool {
-		return !m[p]
-	})
-}

appc/appconnector_test.go

@@ -9,248 +9,202 @@ import (
 	"reflect"
 	"slices"
 	"testing"
-	"time"
 
 	xmaps "golang.org/x/exp/maps"
 	"golang.org/x/net/dns/dnsmessage"
 	"tailscale.com/appc/appctest"
-	"tailscale.com/tstest"
 	"tailscale.com/util/mak"
 	"tailscale.com/util/must"
 )
 
-func fakeStoreRoutes(*RouteInfo) error { return nil }
-
 func TestUpdateDomains(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, &appctest.RouteCollector{}, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, &appctest.RouteCollector{}, nil, nil)
-		}
-		a.UpdateDomains([]string{"example.com"})
+	ctx := context.Background()
+	a := NewAppConnector(t.Logf, nil)
+	a.UpdateDomains([]string{"example.com"})
 
-		a.Wait(ctx)
-		if got, want := a.Domains().AsSlice(), []string{"example.com"}; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	a.Wait(ctx)
+	if got, want := a.Domains().AsSlice(), []string{"example.com"}; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		addr := netip.MustParseAddr("192.0.0.8")
-		a.domains["example.com"] = append(a.domains["example.com"], addr)
-		a.UpdateDomains([]string{"example.com"})
-		a.Wait(ctx)
+	addr := netip.MustParseAddr("192.0.0.8")
+	a.domains["example.com"] = append(a.domains["example.com"], addr)
+	a.UpdateDomains([]string{"example.com"})
+	a.Wait(ctx)
 
-		if got, want := a.domains["example.com"], []netip.Addr{addr}; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	if got, want := a.domains["example.com"], []netip.Addr{addr}; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		// domains are explicitly downcased on set.
-		a.UpdateDomains([]string{"UP.EXAMPLE.COM"})
-		a.Wait(ctx)
-		if got, want := xmaps.Keys(a.domains), []string{"up.example.com"}; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	// domains are explicitly downcased on set.
+	a.UpdateDomains([]string{"UP.EXAMPLE.COM"})
+	a.Wait(ctx)
+	if got, want := xmaps.Keys(a.domains), []string{"up.example.com"}; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
 	}
 }
 
 func TestUpdateRoutes(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		rc := &appctest.RouteCollector{}
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
-		a.updateDomains([]string{"*.example.com"})
+	ctx := context.Background()
+	rc := &appctest.RouteCollector{}
+	a := NewAppConnector(t.Logf, rc)
+	a.updateDomains([]string{"*.example.com"})
 
-		// This route should be collapsed into the range
-		a.ObserveDNSResponse(dnsResponse("a.example.com.", "192.0.2.1"))
-		a.Wait(ctx)
+	// This route should be collapsed into the range
+	a.ObserveDNSResponse(dnsResponse("a.example.com.", "192.0.2.1"))
+	a.Wait(ctx)
 
-		if !slices.Equal(rc.Routes(), []netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")}) {
-			t.Fatalf("got %v, want %v", rc.Routes(), []netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")})
-		}
+	if !slices.Equal(rc.Routes(), []netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")}) {
+		t.Fatalf("got %v, want %v", rc.Routes(), []netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")})
+	}
 
-		// This route should not be collapsed or removed
-		a.ObserveDNSResponse(dnsResponse("b.example.com.", "192.0.0.1"))
-		a.Wait(ctx)
+	// This route should not be collapsed or removed
+	a.ObserveDNSResponse(dnsResponse("b.example.com.", "192.0.0.1"))
+	a.Wait(ctx)
 
-		routes := []netip.Prefix{netip.MustParsePrefix("192.0.2.0/24"), netip.MustParsePrefix("192.0.0.1/32")}
-		a.updateRoutes(routes)
+	routes := []netip.Prefix{netip.MustParsePrefix("192.0.2.0/24"), netip.MustParsePrefix("192.0.0.1/32")}
+	a.updateRoutes(routes)
 
-		slices.SortFunc(rc.Routes(), prefixCompare)
-		rc.SetRoutes(slices.Compact(rc.Routes()))
-		slices.SortFunc(routes, prefixCompare)
+	slices.SortFunc(rc.Routes(), prefixCompare)
+	rc.SetRoutes(slices.Compact(rc.Routes()))
+	slices.SortFunc(routes, prefixCompare)
 
-		// Ensure that the non-matching /32 is preserved, even though it's in the domains table.
-		if !slices.EqualFunc(routes, rc.Routes(), prefixEqual) {
-			t.Errorf("added routes: got %v, want %v", rc.Routes(), routes)
-		}
+	// Ensure that the non-matching /32 is preserved, even though it's in the domains table.
+	if !slices.EqualFunc(routes, rc.Routes(), prefixEqual) {
+		t.Errorf("added routes: got %v, want %v", rc.Routes(), routes)
+	}
 
-		// Ensure that the contained /32 is removed, replaced by the /24.
-		wantRemoved := []netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")}
-		if !slices.EqualFunc(rc.RemovedRoutes(), wantRemoved, prefixEqual) {
-			t.Fatalf("unexpected removed routes: %v", rc.RemovedRoutes())
-		}
+	// Ensure that the contained /32 is removed, replaced by the /24.
+	wantRemoved := []netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")}
+	if !slices.EqualFunc(rc.RemovedRoutes(), wantRemoved, prefixEqual) {
+		t.Fatalf("unexpected removed routes: %v", rc.RemovedRoutes())
 	}
 }
 
 func TestUpdateRoutesUnadvertisesContainedRoutes(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		rc := &appctest.RouteCollector{}
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
-		mak.Set(&a.domains, "example.com", []netip.Addr{netip.MustParseAddr("192.0.2.1")})
-		rc.SetRoutes([]netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")})
-		routes := []netip.Prefix{netip.MustParsePrefix("192.0.2.0/24")}
-		a.updateRoutes(routes)
+	rc := &appctest.RouteCollector{}
+	a := NewAppConnector(t.Logf, rc)
+	mak.Set(&a.domains, "example.com", []netip.Addr{netip.MustParseAddr("192.0.2.1")})
+	rc.SetRoutes([]netip.Prefix{netip.MustParsePrefix("192.0.2.1/32")})
+	routes := []netip.Prefix{netip.MustParsePrefix("192.0.2.0/24")}
+	a.updateRoutes(routes)
 
-		if !slices.EqualFunc(routes, rc.Routes(), prefixEqual) {
-			t.Fatalf("got %v, want %v", rc.Routes(), routes)
-		}
+	if !slices.EqualFunc(routes, rc.Routes(), prefixEqual) {
+		t.Fatalf("got %v, want %v", rc.Routes(), routes)
 	}
 }
 
 func TestDomainRoutes(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		rc := &appctest.RouteCollector{}
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
-		a.updateDomains([]string{"example.com"})
-		a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
-		a.Wait(context.Background())
+	rc := &appctest.RouteCollector{}
+	a := NewAppConnector(t.Logf, rc)
+	a.updateDomains([]string{"example.com"})
+	a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
+	a.Wait(context.Background())
 
-		want := map[string][]netip.Addr{
-			"example.com": {netip.MustParseAddr("192.0.0.8")},
-		}
+	want := map[string][]netip.Addr{
+		"example.com": {netip.MustParseAddr("192.0.0.8")},
+	}
 
-		if got := a.DomainRoutes(); !reflect.DeepEqual(got, want) {
-			t.Fatalf("DomainRoutes: got %v, want %v", got, want)
-		}
+	if got := a.DomainRoutes(); !reflect.DeepEqual(got, want) {
+		t.Fatalf("DomainRoutes: got %v, want %v", got, want)
 	}
 }
 
 func TestObserveDNSResponse(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		rc := &appctest.RouteCollector{}
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
+	ctx := context.Background()
+	rc := &appctest.RouteCollector{}
+	a := NewAppConnector(t.Logf, rc)
 
-		// a has no domains configured, so it should not advertise any routes
-		a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
-		if got, want := rc.Routes(), ([]netip.Prefix)(nil); !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	// a has no domains configured, so it should not advertise any routes
+	a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
+	if got, want := rc.Routes(), ([]netip.Prefix)(nil); !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		wantRoutes := []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}
+	wantRoutes := []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}
 
-		a.updateDomains([]string{"example.com"})
-		a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
-		a.Wait(ctx)
-		if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	a.updateDomains([]string{"example.com"})
+	a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
+	a.Wait(ctx)
+	if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		// a CNAME record chain should result in a route being added if the chain
-		// matches a routed domain.
-		a.updateDomains([]string{"www.example.com", "example.com"})
-		a.ObserveDNSResponse(dnsCNAMEResponse("192.0.0.9", "www.example.com.", "chain.example.com.", "example.com."))
-		a.Wait(ctx)
-		wantRoutes = append(wantRoutes, netip.MustParsePrefix("192.0.0.9/32"))
-		if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	// a CNAME record chain should result in a route being added if the chain
+	// matches a routed domain.
+	a.updateDomains([]string{"www.example.com", "example.com"})
+	a.ObserveDNSResponse(dnsCNAMEResponse("192.0.0.9", "www.example.com.", "chain.example.com.", "example.com."))
+	a.Wait(ctx)
+	wantRoutes = append(wantRoutes, netip.MustParsePrefix("192.0.0.9/32"))
+	if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		// a CNAME record chain should result in a route being added if the chain
-		// even if only found in the middle of the chain
-		a.ObserveDNSResponse(dnsCNAMEResponse("192.0.0.10", "outside.example.org.", "www.example.com.", "example.org."))
-		a.Wait(ctx)
-		wantRoutes = append(wantRoutes, netip.MustParsePrefix("192.0.0.10/32"))
-		if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	// a CNAME record chain should result in a route being added if the chain
+	// even if only found in the middle of the chain
+	a.ObserveDNSResponse(dnsCNAMEResponse("192.0.0.10", "outside.example.org.", "www.example.com.", "example.org."))
+	a.Wait(ctx)
+	wantRoutes = append(wantRoutes, netip.MustParsePrefix("192.0.0.10/32"))
+	if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		wantRoutes = append(wantRoutes, netip.MustParsePrefix("2001:db8::1/128"))
+	wantRoutes = append(wantRoutes, netip.MustParsePrefix("2001:db8::1/128"))
 
-		a.ObserveDNSResponse(dnsResponse("example.com.", "2001:db8::1"))
-		a.Wait(ctx)
-		if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
-			t.Errorf("got %v; want %v", got, want)
-		}
+	a.ObserveDNSResponse(dnsResponse("example.com.", "2001:db8::1"))
+	a.Wait(ctx)
+	if got, want := rc.Routes(), wantRoutes; !slices.Equal(got, want) {
+		t.Errorf("got %v; want %v", got, want)
+	}
 
-		// don't re-advertise routes that have already been advertised
-		a.ObserveDNSResponse(dnsResponse("example.com.", "2001:db8::1"))
-		a.Wait(ctx)
-		if !slices.Equal(rc.Routes(), wantRoutes) {
-			t.Errorf("rc.Routes(): got %v; want %v", rc.Routes(), wantRoutes)
-		}
+	// don't re-advertise routes that have already been advertised
+	a.ObserveDNSResponse(dnsResponse("example.com.", "2001:db8::1"))
+	a.Wait(ctx)
+	if !slices.Equal(rc.Routes(), wantRoutes) {
+		t.Errorf("rc.Routes(): got %v; want %v", rc.Routes(), wantRoutes)
+	}
 
-		// don't advertise addresses that are already in a control provided route
-		pfx := netip.MustParsePrefix("192.0.2.0/24")
-		a.updateRoutes([]netip.Prefix{pfx})
-		wantRoutes = append(wantRoutes, pfx)
-		a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.2.1"))
-		a.Wait(ctx)
-		if !slices.Equal(rc.Routes(), wantRoutes) {
-			t.Errorf("rc.Routes(): got %v; want %v", rc.Routes(), wantRoutes)
-		}
-		if !slices.Contains(a.domains["example.com"], netip.MustParseAddr("192.0.2.1")) {
-			t.Errorf("missing %v from %v", "192.0.2.1", a.domains["exmaple.com"])
-		}
+	// don't advertise addresses that are already in a control provided route
+	pfx := netip.MustParsePrefix("192.0.2.0/24")
+	a.updateRoutes([]netip.Prefix{pfx})
+	wantRoutes = append(wantRoutes, pfx)
+	a.ObserveDNSResponse(dnsResponse("example.com.", "192.0.2.1"))
+	a.Wait(ctx)
+	if !slices.Equal(rc.Routes(), wantRoutes) {
+		t.Errorf("rc.Routes(): got %v; want %v", rc.Routes(), wantRoutes)
+	}
+	if !slices.Contains(a.domains["example.com"], netip.MustParseAddr("192.0.2.1")) {
+		t.Errorf("missing %v from %v", "192.0.2.1", a.domains["exmaple.com"])
 	}
 }
 
 func TestWildcardDomains(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		rc := &appctest.RouteCollector{}
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
+	ctx := context.Background()
+	rc := &appctest.RouteCollector{}
+	a := NewAppConnector(t.Logf, rc)
 
-		a.updateDomains([]string{"*.example.com"})
-		a.ObserveDNSResponse(dnsResponse("foo.example.com.", "192.0.0.8"))
-		a.Wait(ctx)
-		if got, want := rc.Routes(), []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}; !slices.Equal(got, want) {
-			t.Errorf("routes: got %v; want %v", got, want)
-		}
-		if got, want := a.wildcards, []string{"example.com"}; !slices.Equal(got, want) {
-			t.Errorf("wildcards: got %v; want %v", got, want)
-		}
+	a.updateDomains([]string{"*.example.com"})
+	a.ObserveDNSResponse(dnsResponse("foo.example.com.", "192.0.0.8"))
+	a.Wait(ctx)
+	if got, want := rc.Routes(), []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}; !slices.Equal(got, want) {
+		t.Errorf("routes: got %v; want %v", got, want)
+	}
+	if got, want := a.wildcards, []string{"example.com"}; !slices.Equal(got, want) {
+		t.Errorf("wildcards: got %v; want %v", got, want)
+	}
 
-		a.updateDomains([]string{"*.example.com", "example.com"})
-		if _, ok := a.domains["foo.example.com"]; !ok {
-			t.Errorf("expected foo.example.com to be preserved in domains due to wildcard")
-		}
-		if got, want := a.wildcards, []string{"example.com"}; !slices.Equal(got, want) {
-			t.Errorf("wildcards: got %v; want %v", got, want)
-		}
+	a.updateDomains([]string{"*.example.com", "example.com"})
+	if _, ok := a.domains["foo.example.com"]; !ok {
+		t.Errorf("expected foo.example.com to be preserved in domains due to wildcard")
+	}
+	if got, want := a.wildcards, []string{"example.com"}; !slices.Equal(got, want) {
+		t.Errorf("wildcards: got %v; want %v", got, want)
+	}
 
-		// There was an early regression where the wildcard domain was added repeatedly, this guards against that.
-		a.updateDomains([]string{"*.example.com", "example.com"})
-		if len(a.wildcards) != 1 {
-			t.Errorf("expected only one wildcard domain, got %v", a.wildcards)
-		}
+	// There was an early regression where the wildcard domain was added repeatedly, this guards against that.
+	a.updateDomains([]string{"*.example.com", "example.com"})
+	if len(a.wildcards) != 1 {
+		t.Errorf("expected only one wildcard domain, got %v", a.wildcards)
 	}
 }
 
@@ -356,216 +310,3 @@ func prefixCompare(a, b netip.Prefix) int {
 	}
 	return a.Addr().Compare(b.Addr())
 }
-
-func prefixes(in ...string) []netip.Prefix {
-	toRet := make([]netip.Prefix, len(in))
-	for i, s := range in {
-		toRet[i] = netip.MustParsePrefix(s)
-	}
-	return toRet
-}
-
-func TestUpdateRouteRouteRemoval(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		rc := &appctest.RouteCollector{}
-
-		assertRoutes := func(prefix string, routes, removedRoutes []netip.Prefix) {
-			if !slices.Equal(routes, rc.Routes()) {
-				t.Fatalf("%s: (shouldStore=%t) routes want %v, got %v", prefix, shouldStore, routes, rc.Routes())
-			}
-			if !slices.Equal(removedRoutes, rc.RemovedRoutes()) {
-				t.Fatalf("%s: (shouldStore=%t) removedRoutes want %v, got %v", prefix, shouldStore, removedRoutes, rc.RemovedRoutes())
-			}
-		}
-
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
-		// nothing has yet been advertised
-		assertRoutes("appc init", []netip.Prefix{}, []netip.Prefix{})
-
-		a.UpdateDomainsAndRoutes([]string{}, prefixes("1.2.3.1/32", "1.2.3.2/32"))
-		a.Wait(ctx)
-		// the routes passed to UpdateDomainsAndRoutes have been advertised
-		assertRoutes("simple update", prefixes("1.2.3.1/32", "1.2.3.2/32"), []netip.Prefix{})
-
-		// one route the same, one different
-		a.UpdateDomainsAndRoutes([]string{}, prefixes("1.2.3.1/32", "1.2.3.3/32"))
-		a.Wait(ctx)
-		// old behavior: routes are not removed, resulting routes are both old and new
-		// (we have dupe 1.2.3.1 routes because the test RouteAdvertiser doesn't have the deduplication
-		// the real one does)
-		wantRoutes := prefixes("1.2.3.1/32", "1.2.3.2/32", "1.2.3.1/32", "1.2.3.3/32")
-		wantRemovedRoutes := []netip.Prefix{}
-		if shouldStore {
-			// new behavior: routes are removed, resulting routes are new only
-			wantRoutes = prefixes("1.2.3.1/32", "1.2.3.1/32", "1.2.3.3/32")
-			wantRemovedRoutes = prefixes("1.2.3.2/32")
-		}
-		assertRoutes("removal", wantRoutes, wantRemovedRoutes)
-	}
-}
-
-func TestUpdateDomainRouteRemoval(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		rc := &appctest.RouteCollector{}
-
-		assertRoutes := func(prefix string, routes, removedRoutes []netip.Prefix) {
-			if !slices.Equal(routes, rc.Routes()) {
-				t.Fatalf("%s: (shouldStore=%t) routes want %v, got %v", prefix, shouldStore, routes, rc.Routes())
-			}
-			if !slices.Equal(removedRoutes, rc.RemovedRoutes()) {
-				t.Fatalf("%s: (shouldStore=%t) removedRoutes want %v, got %v", prefix, shouldStore, removedRoutes, rc.RemovedRoutes())
-			}
-		}
-
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
-		assertRoutes("appc init", []netip.Prefix{}, []netip.Prefix{})
-
-		a.UpdateDomainsAndRoutes([]string{"a.example.com", "b.example.com"}, []netip.Prefix{})
-		a.Wait(ctx)
-		// adding domains doesn't immediately cause any routes to be advertised
-		assertRoutes("update domains", []netip.Prefix{}, []netip.Prefix{})
-
-		a.ObserveDNSResponse(dnsResponse("a.example.com.", "1.2.3.1"))
-		a.ObserveDNSResponse(dnsResponse("a.example.com.", "1.2.3.2"))
-		a.ObserveDNSResponse(dnsResponse("b.example.com.", "1.2.3.3"))
-		a.ObserveDNSResponse(dnsResponse("b.example.com.", "1.2.3.4"))
-		a.Wait(ctx)
-		// observing dns responses causes routes to be advertised
-		assertRoutes("observed dns", prefixes("1.2.3.1/32", "1.2.3.2/32", "1.2.3.3/32", "1.2.3.4/32"), []netip.Prefix{})
-
-		a.UpdateDomainsAndRoutes([]string{"a.example.com"}, []netip.Prefix{})
-		a.Wait(ctx)
-		// old behavior, routes are not removed
-		wantRoutes := prefixes("1.2.3.1/32", "1.2.3.2/32", "1.2.3.3/32", "1.2.3.4/32")
-		wantRemovedRoutes := []netip.Prefix{}
-		if shouldStore {
-			// new behavior, routes are removed for b.example.com
-			wantRoutes = prefixes("1.2.3.1/32", "1.2.3.2/32")
-			wantRemovedRoutes = prefixes("1.2.3.3/32", "1.2.3.4/32")
-		}
-		assertRoutes("removal", wantRoutes, wantRemovedRoutes)
-	}
-}
-
-func TestUpdateWildcardRouteRemoval(t *testing.T) {
-	for _, shouldStore := range []bool{false, true} {
-		ctx := context.Background()
-		rc := &appctest.RouteCollector{}
-
-		assertRoutes := func(prefix string, routes, removedRoutes []netip.Prefix) {
-			if !slices.Equal(routes, rc.Routes()) {
-				t.Fatalf("%s: (shouldStore=%t) routes want %v, got %v", prefix, shouldStore, routes, rc.Routes())
-			}
-			if !slices.Equal(removedRoutes, rc.RemovedRoutes()) {
-				t.Fatalf("%s: (shouldStore=%t) removedRoutes want %v, got %v", prefix, shouldStore, removedRoutes, rc.RemovedRoutes())
-			}
-		}
-
-		var a *AppConnector
-		if shouldStore {
-			a = NewAppConnector(t.Logf, rc, &RouteInfo{}, fakeStoreRoutes)
-		} else {
-			a = NewAppConnector(t.Logf, rc, nil, nil)
-		}
-		assertRoutes("appc init", []netip.Prefix{}, []netip.Prefix{})
-
-		a.UpdateDomainsAndRoutes([]string{"a.example.com", "*.b.example.com"}, []netip.Prefix{})
-		a.Wait(ctx)
-		// adding domains doesn't immediately cause any routes to be advertised
-		assertRoutes("update domains", []netip.Prefix{}, []netip.Prefix{})
-
-		a.ObserveDNSResponse(dnsResponse("a.example.com.", "1.2.3.1"))
-		a.ObserveDNSResponse(dnsResponse("a.example.com.", "1.2.3.2"))
-		a.ObserveDNSResponse(dnsResponse("1.b.example.com.", "1.2.3.3"))
-		a.ObserveDNSResponse(dnsResponse("2.b.example.com.", "1.2.3.4"))
-		a.Wait(ctx)
-		// observing dns responses causes routes to be advertised
-		assertRoutes("observed dns", prefixes("1.2.3.1/32", "1.2.3.2/32", "1.2.3.3/32", "1.2.3.4/32"), []netip.Prefix{})
-
-		a.UpdateDomainsAndRoutes([]string{"a.example.com"}, []netip.Prefix{})
-		a.Wait(ctx)
-		// old behavior, routes are not removed
-		wantRoutes := prefixes("1.2.3.1/32", "1.2.3.2/32", "1.2.3.3/32", "1.2.3.4/32")
-		wantRemovedRoutes := []netip.Prefix{}
-		if shouldStore {
-			// new behavior, routes are removed for *.b.example.com
-			wantRoutes = prefixes("1.2.3.1/32", "1.2.3.2/32")
-			wantRemovedRoutes = prefixes("1.2.3.3/32", "1.2.3.4/32")
-		}
-		assertRoutes("removal", wantRoutes, wantRemovedRoutes)
-	}
-}
-
-func TestRoutesWithout(t *testing.T) {
-	assert := func(msg string, got, want []netip.Prefix) {
-		if !slices.Equal(want, got) {
-			t.Errorf("%s: want %v, got %v", msg, want, got)
-		}
-	}
-
-	assert("empty routes", routesWithout([]netip.Prefix{}, []netip.Prefix{}), []netip.Prefix{})
-	assert("a empty", routesWithout([]netip.Prefix{}, prefixes("1.1.1.1/32", "1.1.1.2/32")), []netip.Prefix{})
-	assert("b empty", routesWithout(prefixes("1.1.1.1/32", "1.1.1.2/32"), []netip.Prefix{}), prefixes("1.1.1.1/32", "1.1.1.2/32"))
-	assert("no overlap", routesWithout(prefixes("1.1.1.1/32", "1.1.1.2/32"), prefixes("1.1.1.3/32", "1.1.1.4/32")), prefixes("1.1.1.1/32", "1.1.1.2/32"))
-	assert("a has fewer", routesWithout(prefixes("1.1.1.1/32", "1.1.1.2/32"), prefixes("1.1.1.1/32", "1.1.1.2/32", "1.1.1.3/32", "1.1.1.4/32")), []netip.Prefix{})
-	assert("a has more", routesWithout(prefixes("1.1.1.1/32", "1.1.1.2/32", "1.1.1.3/32", "1.1.1.4/32"), prefixes("1.1.1.1/32", "1.1.1.3/32")), prefixes("1.1.1.2/32", "1.1.1.4/32"))
-}
-
-func TestRateLogger(t *testing.T) {
-	clock := tstest.Clock{}
-	wasCalled := false
-	rl := newRateLogger(func() time.Time { return clock.Now() }, 1*time.Second, func(count int64, _ time.Time, _ int64) {
-		if count != 3 {
-			t.Fatalf("count for prev period: got %d, want 3", count)
-		}
-		wasCalled = true
-	})
-
-	for i := 0; i < 3; i++ {
-		clock.Advance(1 * time.Millisecond)
-		rl.update(0)
-		if wasCalled {
-			t.Fatalf("wasCalled: got true, want false")
-		}
-	}
-
-	clock.Advance(1 * time.Second)
-	rl.update(0)
-	if !wasCalled {
-		t.Fatalf("wasCalled: got false, want true")
-	}
-
-	wasCalled = false
-	rl = newRateLogger(func() time.Time { return clock.Now() }, 1*time.Hour, func(count int64, _ time.Time, _ int64) {
-		if count != 3 {
-			t.Fatalf("count for prev period: got %d, want 3", count)
-		}
-		wasCalled = true
-	})
-
-	for i := 0; i < 3; i++ {
-		clock.Advance(1 * time.Minute)
-		rl.update(0)
-		if wasCalled {
-			t.Fatalf("wasCalled: got true, want false")
-		}
-	}
-
-	clock.Advance(1 * time.Hour)
-	rl.update(0)
-	if !wasCalled {
-		t.Fatalf("wasCalled: got false, want true")
-	}
-}

build_dist.sh

@@ -37,7 +37,7 @@ while [ "$#" -gt 1 ]; do
 	--extra-small)
 		shift
 		ldflags="$ldflags -w -s"
-		tags="${tags:+$tags,}ts_omit_aws,ts_omit_bird,ts_omit_tap,ts_omit_kube,ts_omit_completion"
+		tags="${tags:+$tags,}ts_omit_aws,ts_omit_bird,ts_omit_tap,ts_omit_kube"
 		;;
 	--box)
 		shift

build_docker.sh

@@ -20,9 +20,9 @@
 set -eu
 
 # Use the "go" binary from the "tool" directory (which is github.com/tailscale/go)
-export PATH="$PWD"/tool:"$PATH"
+export PATH=$PWD/tool:$PATH
 
-eval "$(./build_dist.sh shellvars)"
+eval $(./build_dist.sh shellvars)
 
 DEFAULT_TARGET="client"
 DEFAULT_TAGS="v${VERSION_SHORT},v${VERSION_MINOR}"
@@ -49,7 +49,6 @@ case "$TARGET" in
         -X tailscale.com/version.gitCommitStamp=${VERSION_GIT_HASH}" \
       --base="${BASE}" \
       --tags="${TAGS}" \
-      --gotags="ts_kube" \
       --repos="${REPOS}" \
       --push="${PUSH}" \
       --target="${PLATFORM}" \
@@ -71,24 +70,8 @@ case "$TARGET" in
       --target="${PLATFORM}" \
       /usr/local/bin/operator
     ;;
-  k8s-nameserver)
-    DEFAULT_REPOS="tailscale/k8s-nameserver"
-    REPOS="${REPOS:-${DEFAULT_REPOS}}"
-    go run github.com/tailscale/mkctr \
-      --gopaths="tailscale.com/cmd/k8s-nameserver:/usr/local/bin/k8s-nameserver" \
-      --ldflags=" \
-        -X tailscale.com/version.longStamp=${VERSION_LONG} \
-        -X tailscale.com/version.shortStamp=${VERSION_SHORT} \
-        -X tailscale.com/version.gitCommitStamp=${VERSION_GIT_HASH}" \
-      --base="${BASE}" \
-      --tags="${TAGS}" \
-      --repos="${REPOS}" \
-      --push="${PUSH}" \
-      --target="${PLATFORM}" \
-      /usr/local/bin/k8s-nameserver
-    ;;
   *)
     echo "unknown target: $TARGET"
     exit 1
     ;;
-esac
+esac

client/tailscale/acl.go

@@ -270,14 +270,6 @@ type UserRuleMatch struct {
 	Users      []string `json:"users"`
 	Ports      []string `json:"ports"`
 	LineNumber int      `json:"lineNumber"`
-
-	// Postures is a list of posture policies that are
-	// associated with this match. The rules can be looked
-	// up in the ACLPreviewResponse parent struct.
-	// The source of the list is from srcPosture on
-	// an ACL or Grant rule:
-	// https://tailscale.com/kb/1288/device-posture#posture-conditions
-	Postures []string `json:"postures"`
 }
 
 // ACLPreviewResponse is the response type of previewACLPostRequest
@@ -285,12 +277,6 @@ type ACLPreviewResponse struct {
 	Matches    []UserRuleMatch `json:"matches"`    // ACL rules that match the specified user or ipport.
 	Type       string          `json:"type"`       // The request type: currently only "user" or "ipport".
 	PreviewFor string          `json:"previewFor"` // A specific user or ipport.
-
-	// Postures is a map of postures and associated rules that apply
-	// to this preview.
-	// For more details about the posture mapping, see:
-	// https://tailscale.com/kb/1288/device-posture#postures
-	Postures map[string][]string `json:"postures,omitempty"`
 }
 
 // ACLPreview is the response type of PreviewACLForUser, PreviewACLForIPPort, PreviewACLHuJSONForUser, and PreviewACLHuJSONForIPPort
@@ -298,12 +284,6 @@ type ACLPreview struct {
 	Matches []UserRuleMatch `json:"matches"`
 	User    string          `json:"user,omitempty"`   // Filled if response of PreviewACLForUser or PreviewACLHuJSONForUser
 	IPPort  string          `json:"ipport,omitempty"` // Filled if response of PreviewACLForIPPort or PreviewACLHuJSONForIPPort
-
-	// Postures is a map of postures and associated rules that apply
-	// to this preview.
-	// For more details about the posture mapping, see:
-	// https://tailscale.com/kb/1288/device-posture#postures
-	Postures map[string][]string `json:"postures,omitempty"`
 }
 
 func (c *Client) previewACLPostRequest(ctx context.Context, body []byte, previewType string, previewFor string) (res *ACLPreviewResponse, err error) {
@@ -361,9 +341,8 @@ func (c *Client) PreviewACLForUser(ctx context.Context, acl ACL, user string) (r
 	}
 
 	return &ACLPreview{
-		Matches:  b.Matches,
-		User:     b.PreviewFor,
-		Postures: b.Postures,
+		Matches: b.Matches,
+		User:    b.PreviewFor,
 	}, nil
 }
 
@@ -390,9 +369,8 @@ func (c *Client) PreviewACLForIPPort(ctx context.Context, acl ACL, ipport netip.
 	}
 
 	return &ACLPreview{
-		Matches:  b.Matches,
-		IPPort:   b.PreviewFor,
-		Postures: b.Postures,
+		Matches: b.Matches,
+		IPPort:  b.PreviewFor,
 	}, nil
 }
 
@@ -416,9 +394,8 @@ func (c *Client) PreviewACLHuJSONForUser(ctx context.Context, acl ACLHuJSON, use
 	}
 
 	return &ACLPreview{
-		Matches:  b.Matches,
-		User:     b.PreviewFor,
-		Postures: b.Postures,
+		Matches: b.Matches,
+		User:    b.PreviewFor,
 	}, nil
 }
 
@@ -442,9 +419,8 @@ func (c *Client) PreviewACLHuJSONForIPPort(ctx context.Context, acl ACLHuJSON, i
 	}
 
 	return &ACLPreview{
-		Matches:  b.Matches,
-		IPPort:   b.PreviewFor,
-		Postures: b.Postures,
+		Matches: b.Matches,
+		IPPort:  b.PreviewFor,
 	}, nil
 }
 

client/tailscale/apitype/apitype.go

@@ -49,11 +49,3 @@ type ReloadConfigResponse struct {
 	Reloaded bool   // whether the config was reloaded
 	Err      string // any error message
 }
-
-// ExitNodeSuggestionResponse is the response to a LocalAPI suggest-exit-node GET request.
-// It returns the StableNodeID, name, and location of a suggested exit node for the client making the request.
-type ExitNodeSuggestionResponse struct {
-	ID       tailcfg.StableNodeID
-	Name     string
-	Location tailcfg.LocationView `json:",omitempty"`
-}

client/tailscale/devices.go

@@ -10,7 +10,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"log"
 	"net/http"
 	"net/url"
 
@@ -40,7 +39,6 @@ type Device struct {
 	// It's currently just 1 element, the 100.x.y.z Tailscale IP.
 	Addresses []string `json:"addresses"`
 	DeviceID  string   `json:"id"`
-	NodeID    string   `json:"nodeId"`
 	User      string   `json:"user"`
 	Name      string   `json:"name"`
 	Hostname  string   `json:"hostname"`
@@ -215,9 +213,6 @@ func (c *Client) DeleteDevice(ctx context.Context, deviceID string) (err error)
 	if err != nil {
 		return err
 	}
-
-	log.Printf("RESP: %di, path: %s", resp.StatusCode, path)
-
 	// If status code was not successful, return the error.
 	// TODO: Change the check for the StatusCode to include other 2XX success codes.
 	if resp.StatusCode != http.StatusOK {

client/tailscale/localclient.go

@@ -28,7 +28,6 @@ import (
 
 	"go4.org/mem"
 	"tailscale.com/client/tailscale/apitype"
-	"tailscale.com/drive"
 	"tailscale.com/envknob"
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/ipnstate"
@@ -36,6 +35,7 @@ import (
 	"tailscale.com/paths"
 	"tailscale.com/safesocket"
 	"tailscale.com/tailcfg"
+	"tailscale.com/tailfs"
 	"tailscale.com/tka"
 	"tailscale.com/types/key"
 	"tailscale.com/types/tkatype"
@@ -253,16 +253,11 @@ func (lc *LocalClient) sendWithHeaders(
 	}
 	if res.StatusCode != wantStatus {
 		err = fmt.Errorf("%v: %s", res.Status, bytes.TrimSpace(slurp))
-		return nil, nil, httpStatusError{bestError(err, slurp), res.StatusCode}
+		return nil, nil, bestError(err, slurp)
 	}
 	return slurp, res.Header, nil
 }
 
-type httpStatusError struct {
-	error
-	HTTPStatus int
-}
-
 func (lc *LocalClient) get200(ctx context.Context, path string) ([]byte, error) {
 	return lc.send(ctx, "GET", path, 200, nil)
 }
@@ -283,50 +278,9 @@ func decodeJSON[T any](b []byte) (ret T, err error) {
 }
 
 // WhoIs returns the owner of the remoteAddr, which must be an IP or IP:port.
-//
-// If not found, the error is ErrPeerNotFound.
-//
-// For connections proxied by tailscaled, this looks up the owner of the given
-// address as TCP first, falling back to UDP; if you want to only check a
-// specific address family, use WhoIsProto.
 func (lc *LocalClient) WhoIs(ctx context.Context, remoteAddr string) (*apitype.WhoIsResponse, error) {
 	body, err := lc.get200(ctx, "/localapi/v0/whois?addr="+url.QueryEscape(remoteAddr))
 	if err != nil {
-		if hs, ok := err.(httpStatusError); ok && hs.HTTPStatus == http.StatusNotFound {
-			return nil, ErrPeerNotFound
-		}
-		return nil, err
-	}
-	return decodeJSON[*apitype.WhoIsResponse](body)
-}
-
-// ErrPeerNotFound is returned by WhoIs and WhoIsNodeKey when a peer is not found.
-var ErrPeerNotFound = errors.New("peer not found")
-
-// WhoIsNodeKey returns the owner of the given wireguard public key.
-//
-// If not found, the error is ErrPeerNotFound.
-func (lc *LocalClient) WhoIsNodeKey(ctx context.Context, key key.NodePublic) (*apitype.WhoIsResponse, error) {
-	body, err := lc.get200(ctx, "/localapi/v0/whois?addr="+url.QueryEscape(key.String()))
-	if err != nil {
-		if hs, ok := err.(httpStatusError); ok && hs.HTTPStatus == http.StatusNotFound {
-			return nil, ErrPeerNotFound
-		}
-		return nil, err
-	}
-	return decodeJSON[*apitype.WhoIsResponse](body)
-}
-
-// WhoIsProto returns the owner of the remoteAddr, which must be an IP or
-// IP:port, for the given protocol (tcp or udp).
-//
-// If not found, the error is ErrPeerNotFound.
-func (lc *LocalClient) WhoIsProto(ctx context.Context, proto, remoteAddr string) (*apitype.WhoIsResponse, error) {
-	body, err := lc.get200(ctx, "/localapi/v0/whois?proto="+url.QueryEscape(proto)+"&addr="+url.QueryEscape(remoteAddr))
-	if err != nil {
-		if hs, ok := err.(httpStatusError); ok && hs.HTTPStatus == http.StatusNotFound {
-			return nil, ErrPeerNotFound
-		}
 		return nil, err
 	}
 	return decodeJSON[*apitype.WhoIsResponse](body)
@@ -745,27 +699,6 @@ func (lc *LocalClient) CheckUDPGROForwarding(ctx context.Context) error {
 	return nil
 }
 
-// SetUDPGROForwarding enables UDP GRO forwarding for the main interface of this
-// node. This can be done to improve performance of tailnet nodes acting as exit
-// nodes or subnet routers.
-// See https://tailscale.com/kb/1320/performance-best-practices#linux-optimizations-for-subnet-routers-and-exit-nodes
-func (lc *LocalClient) SetUDPGROForwarding(ctx context.Context) error {
-	body, err := lc.get200(ctx, "/localapi/v0/set-udp-gro-forwarding")
-	if err != nil {
-		return err
-	}
-	var jres struct {
-		Warning string
-	}
-	if err := json.Unmarshal(body, &jres); err != nil {
-		return fmt.Errorf("invalid JSON from set-udp-gro-forwarding: %w", err)
-	}
-	if jres.Warning != "" {
-		return errors.New(jres.Warning)
-	}
-	return nil
-}
-
 // CheckPrefs validates the provided preferences, without making any changes.
 //
 // The CLI uses this before a Start call to fail fast if the preferences won't
@@ -845,17 +778,6 @@ func (lc *LocalClient) SetDNS(ctx context.Context, name, value string) error {
 //
 // The ctx is only used for the duration of the call, not the lifetime of the net.Conn.
 func (lc *LocalClient) DialTCP(ctx context.Context, host string, port uint16) (net.Conn, error) {
-	return lc.UserDial(ctx, "tcp", host, port)
-}
-
-// UserDial connects to the host's port via Tailscale for the given network.
-//
-// The host may be a base DNS name (resolved from the netmap inside tailscaled),
-// a FQDN, or an IP address.
-//
-// The ctx is only used for the duration of the call, not the lifetime of the
-// net.Conn.
-func (lc *LocalClient) UserDial(ctx context.Context, network, host string, port uint16) (net.Conn, error) {
 	connCh := make(chan net.Conn, 1)
 	trace := httptrace.ClientTrace{
 		GotConn: func(info httptrace.GotConnInfo) {
@@ -868,11 +790,10 @@ func (lc *LocalClient) UserDial(ctx context.Context, network, host string, port
 		return nil, err
 	}
 	req.Header = http.Header{
-		"Upgrade":      []string{"ts-dial"},
-		"Connection":   []string{"upgrade"},
-		"Dial-Host":    []string{host},
-		"Dial-Port":    []string{fmt.Sprint(port)},
-		"Dial-Network": []string{network},
+		"Upgrade":    []string{"ts-dial"},
+		"Connection": []string{"upgrade"},
+		"Dial-Host":  []string{host},
+		"Dial-Port":  []string{fmt.Sprint(port)},
 	}
 	res, err := lc.DoLocalRequest(req)
 	if err != nil {
@@ -1497,62 +1418,44 @@ func (lc *LocalClient) CheckUpdate(ctx context.Context) (*tailcfg.ClientVersion,
 	return &cv, nil
 }
 
-// SetUseExitNode toggles the use of an exit node on or off.
-// To turn it on, there must have been a previously used exit node.
-// The most previously used one is reused.
-// This is a convenience method for GUIs. To select an actual one, update the prefs.
-func (lc *LocalClient) SetUseExitNode(ctx context.Context, on bool) error {
-	_, err := lc.send(ctx, "POST", "/localapi/v0/set-use-exit-node-enabled?enabled="+strconv.FormatBool(on), http.StatusOK, nil)
-	return err
-}
-
-// DriveSetServerAddr instructs Taildrive to use the server at addr to access
+// TailFSSetFileServerAddr instructs TailFS to use the server at addr to access
 // the filesystem. This is used on platforms like Windows and MacOS to let
-// Taildrive know to use the file server running in the GUI app.
-func (lc *LocalClient) DriveSetServerAddr(ctx context.Context, addr string) error {
-	_, err := lc.send(ctx, "PUT", "/localapi/v0/drive/fileserver-address", http.StatusCreated, strings.NewReader(addr))
+// TailFS know to use the file server running in the GUI app.
+func (lc *LocalClient) TailFSSetFileServerAddr(ctx context.Context, addr string) error {
+	_, err := lc.send(ctx, "PUT", "/localapi/v0/tailfs/fileserver-address", http.StatusCreated, strings.NewReader(addr))
 	return err
 }
 
-// DriveShareSet adds or updates the given share in the list of shares that
-// Taildrive will serve to remote nodes. If a share with the same name already
-// exists, the existing share is replaced/updated.
-func (lc *LocalClient) DriveShareSet(ctx context.Context, share *drive.Share) error {
-	_, err := lc.send(ctx, "PUT", "/localapi/v0/drive/shares", http.StatusCreated, jsonBody(share))
+// TailFSShareAdd adds the given share to the list of shares that TailFS will
+// serve to remote nodes. If a share with the same name already exists, the
+// existing share is replaced/updated.
+func (lc *LocalClient) TailFSShareAdd(ctx context.Context, share *tailfs.Share) error {
+	_, err := lc.send(ctx, "PUT", "/localapi/v0/tailfs/shares", http.StatusCreated, jsonBody(share))
 	return err
 }
 
-// DriveShareRemove removes the share with the given name from the list of
-// shares that Taildrive will serve to remote nodes.
-func (lc *LocalClient) DriveShareRemove(ctx context.Context, name string) error {
+// TailFSShareRemove removes the share with the given name from the list of
+// shares that TailFS will serve to remote nodes.
+func (lc *LocalClient) TailFSShareRemove(ctx context.Context, name string) error {
 	_, err := lc.send(
 		ctx,
 		"DELETE",
-		"/localapi/v0/drive/shares",
+		"/localapi/v0/tailfs/shares",
 		http.StatusNoContent,
-		strings.NewReader(name))
+		jsonBody(&tailfs.Share{
+			Name: name,
+		}))
 	return err
 }
 
-// DriveShareRename renames the share from old to new name.
-func (lc *LocalClient) DriveShareRename(ctx context.Context, oldName, newName string) error {
-	_, err := lc.send(
-		ctx,
-		"POST",
-		"/localapi/v0/drive/shares",
-		http.StatusNoContent,
-		jsonBody([2]string{oldName, newName}))
-	return err
-}
-
-// DriveShareList returns the list of shares that drive is currently serving
+// TailFSShareList returns the list of shares that TailFS is currently serving
 // to remote nodes.
-func (lc *LocalClient) DriveShareList(ctx context.Context) ([]*drive.Share, error) {
-	result, err := lc.get200(ctx, "/localapi/v0/drive/shares")
+func (lc *LocalClient) TailFSShareList(ctx context.Context) (map[string]*tailfs.Share, error) {
+	result, err := lc.get200(ctx, "/localapi/v0/tailfs/shares")
 	if err != nil {
 		return nil, err
 	}
-	var shares []*drive.Share
+	var shares map[string]*tailfs.Share
 	err = json.Unmarshal(result, &shares)
 	return shares, err
 }
@@ -1593,12 +1496,3 @@ func (w *IPNBusWatcher) Next() (ipn.Notify, error) {
 	}
 	return n, nil
 }
-
-// SuggestExitNode requests an exit node suggestion and returns the exit node's details.
-func (lc *LocalClient) SuggestExitNode(ctx context.Context) (apitype.ExitNodeSuggestionResponse, error) {
-	body, err := lc.get200(ctx, "/localapi/v0/suggest-exit-node")
-	if err != nil {
-		return apitype.ExitNodeSuggestionResponse{}, err
-	}
-	return decodeJSON[apitype.ExitNodeSuggestionResponse](body)
-}

client/tailscale/localclient_test.go

@@ -6,14 +6,9 @@
 package tailscale
 
 import (
-	"context"
-	"net"
-	"net/http"
-	"net/http/httptest"
 	"testing"
 
 	"tailscale.com/tstest/deptest"
-	"tailscale.com/types/key"
 )
 
 func TestGetServeConfigFromJSON(t *testing.T) {
@@ -35,40 +30,13 @@ func TestGetServeConfigFromJSON(t *testing.T) {
 	}
 }
 
-func TestWhoIsPeerNotFound(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(404)
-	}))
-	defer ts.Close()
-
-	lc := &LocalClient{
-		Dial: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			var std net.Dialer
-			return std.DialContext(ctx, network, ts.Listener.Addr().(*net.TCPAddr).String())
-		},
-	}
-	var k key.NodePublic
-	if err := k.UnmarshalText([]byte("nodekey:5c8f86d5fc70d924e55f02446165a5dae8f822994ad26bcf4b08fd841f9bf261")); err != nil {
-		t.Fatal(err)
-	}
-	res, err := lc.WhoIsNodeKey(context.Background(), k)
-	if err != ErrPeerNotFound {
-		t.Errorf("got (%v, %v), want ErrPeerNotFound", res, err)
-	}
-	res, err = lc.WhoIs(context.Background(), "1.2.3.4:5678")
-	if err != ErrPeerNotFound {
-		t.Errorf("got (%v, %v), want ErrPeerNotFound", res, err)
-	}
-}
-
 func TestDeps(t *testing.T) {
 	deptest.DepChecker{
 		BadDeps: map[string]string{
 			// Make sure we don't again accidentally bring in a dependency on
-			// drive or its transitive dependencies
-			"testing":                        "do not use testing package in production code",
-			"tailscale.com/drive/driveimpl":  "https://github.com/tailscale/tailscale/pull/10631",
-			"github.com/studio-b12/gowebdav": "https://github.com/tailscale/tailscale/pull/10631",
+			// TailFS or its transitive dependencies
+			"tailscale.com/tailfs/tailfsimpl": "https://github.com/tailscale/tailscale/pull/10631",
+			"github.com/studio-b12/gowebdav":  "https://github.com/tailscale/tailscale/pull/10631",
 		},
 	}.Check(t)
 }

client/web/auth.go

@@ -11,7 +11,6 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
-	"slices"
 	"strings"
 	"time"
 
@@ -223,7 +222,7 @@ func (s *Server) awaitUserAuth(ctx context.Context, session *browserSession) err
 
 func (s *Server) newSessionID() (string, error) {
 	raw := make([]byte, 16)
-	for range 5 {
+	for i := 0; i < 5; i++ {
 		if _, err := rand.Read(raw); err != nil {
 			return "", err
 		}
@@ -235,12 +234,7 @@ func (s *Server) newSessionID() (string, error) {
 	return "", errors.New("too many collisions generating new session; please refresh page")
 }
 
-// peerCapabilities holds information about what a source
-// peer is allowed to edit via the web UI.
-//
-// map value is true if the peer can edit the given feature.
-// Only capFeatures included in validCaps will be included.
-type peerCapabilities map[capFeature]bool
+type peerCapabilities map[capFeature]bool // value is true if the peer can edit the given feature
 
 // canEdit is true if the peerCapabilities grant edit access
 // to the given feature.
@@ -254,47 +248,21 @@ func (p peerCapabilities) canEdit(feature capFeature) bool {
 	return p[feature]
 }
 
-// isEmpty is true if p is either nil or has no capabilities
-// with value true.
-func (p peerCapabilities) isEmpty() bool {
-	if p == nil {
-		return true
-	}
-	for _, v := range p {
-		if v == true {
-			return false
-		}
-	}
-	return true
-}
-
 type capFeature string
 
 const (
 	// The following values should not be edited.
 	// New caps can be added, but existing ones should not be changed,
 	// as these exact values are used by users in tailnet policy files.
-	//
-	// IMPORTANT: When adding a new cap, also update validCaps slice below.
 
-	capFeatureAll       capFeature = "*"         // grants peer management of all features
-	capFeatureSSH       capFeature = "ssh"       // grants peer SSH server management
-	capFeatureSubnets   capFeature = "subnets"   // grants peer subnet routes management
-	capFeatureExitNodes capFeature = "exitnodes" // grants peer ability to advertise-as and use exit nodes
-	capFeatureAccount   capFeature = "account"   // grants peer ability to turn on auto updates and log out of node
+	capFeatureAll      capFeature = "*"        // grants peer management of all features
+	capFeatureFunnel   capFeature = "funnel"   // grants peer serve/funnel management
+	capFeatureSSH      capFeature = "ssh"      // grants peer SSH server management
+	capFeatureSubnet   capFeature = "subnet"   // grants peer subnet routes management
+	capFeatureExitNode capFeature = "exitnode" // grants peer ability to advertise-as and use exit nodes
+	capFeatureAccount  capFeature = "account"  // grants peer ability to turn on auto updates and log out of node
 )
 
-// validCaps contains the list of valid capabilities used in the web client.
-// Any capabilities included in a peer's grants that do not fall into this
-// list will be ignored.
-var validCaps []capFeature = []capFeature{
-	capFeatureAll,
-	capFeatureSSH,
-	capFeatureSubnets,
-	capFeatureExitNodes,
-	capFeatureAccount,
-}
-
 type capRule struct {
 	CanEdit []string `json:"canEdit,omitempty"` // list of features peer is allowed to edit
 }
@@ -302,13 +270,7 @@ type capRule struct {
 // toPeerCapabilities parses out the web ui capabilities from the
 // given whois response.
 func toPeerCapabilities(status *ipnstate.Status, whois *apitype.WhoIsResponse) (peerCapabilities, error) {
-	if whois == nil || status == nil {
-		return peerCapabilities{}, nil
-	}
-	if whois.Node.IsTagged() {
-		// We don't allow management *from* tagged nodes, so ignore caps.
-		// The web client auth flow relies on having a true user identity
-		// that can be verified through login.
+	if whois == nil {
 		return peerCapabilities{}, nil
 	}
 
@@ -329,10 +291,7 @@ func toPeerCapabilities(status *ipnstate.Status, whois *apitype.WhoIsResponse) (
 	}
 	for _, c := range rules {
 		for _, f := range c.CanEdit {
-			cap := capFeature(strings.ToLower(f))
-			if slices.Contains(validCaps, cap) {
-				caps[cap] = true
-			}
+			caps[capFeature(strings.ToLower(f))] = true
 		}
 	}
 	return caps, nil

client/web/package.json

@@ -6,7 +6,6 @@
     "node": "18.16.1",
     "yarn": "1.22.19"
   },
-  "type": "module",
   "private": true,
   "dependencies": {
     "@radix-ui/react-collapsible": "^1.0.3",
@@ -33,16 +32,12 @@
     "prettier": "^2.5.1",
     "prettier-plugin-organize-imports": "^3.2.2",
     "tailwindcss": "^3.3.3",
-    "typescript": "^5.3.3",
-    "vite": "^5.1.7",
+    "typescript": "^4.7.4",
+    "vite": "^5.1.4",
     "vite-plugin-svgr": "^4.2.0",
     "vite-tsconfig-paths": "^3.5.0",
     "vitest": "^1.3.1"
   },
-  "resolutions": {
-    "@typescript-eslint/eslint-plugin": "^6.2.1",
-    "@typescript-eslint/parser": "^6.2.1"
-  },
   "scripts": {
     "build": "vite build",
     "start": "vite",

client/web/src/components/app.tsx

@@ -11,8 +11,8 @@ import LoginView from "src/components/views/login-view"
 import SSHView from "src/components/views/ssh-view"
 import SubnetRouterView from "src/components/views/subnet-router-view"
 import { UpdatingView } from "src/components/views/updating-view"
-import useAuth, { AuthResponse, canEdit } from "src/hooks/auth"
-import { Feature, NodeData, featureDescription } from "src/types"
+import useAuth, { AuthResponse } from "src/hooks/auth"
+import { Feature, featureDescription, NodeData } from "src/types"
 import Card from "src/ui/card"
 import EmptyState from "src/ui/empty-state"
 import LoadingDots from "src/ui/loading-dots"
@@ -56,19 +56,16 @@ function WebClient({
         <Header node={node} auth={auth} newSession={newSession} />
         <Switch>
           <Route path="/">
-            <HomeView node={node} auth={auth} />
+            <HomeView readonly={!auth.canManageNode} node={node} />
           </Route>
           <Route path="/details">
-            <DeviceDetailsView node={node} auth={auth} />
+            <DeviceDetailsView readonly={!auth.canManageNode} node={node} />
           </Route>
           <FeatureRoute path="/subnets" feature="advertise-routes" node={node}>
-            <SubnetRouterView
-              readonly={!canEdit("subnets", auth)}
-              node={node}
-            />
+            <SubnetRouterView readonly={!auth.canManageNode} node={node} />
           </FeatureRoute>
           <FeatureRoute path="/ssh" feature="ssh" node={node}>
-            <SSHView readonly={!canEdit("ssh", auth)} node={node} />
+            <SSHView readonly={!auth.canManageNode} node={node} />
           </FeatureRoute>
           {/* <Route path="/serve">Share local content</Route> */}
           <FeatureRoute path="/update" feature="auto-update" node={node}>

client/web/src/components/login-toggle.tsx

@@ -2,17 +2,15 @@
 // SPDX-License-Identifier: BSD-3-Clause
 
 import cx from "classnames"
-import React, { useCallback, useMemo, useState } from "react"
+import React, { useCallback, useEffect, useState } from "react"
 import ChevronDown from "src/assets/icons/chevron-down.svg?react"
 import Eye from "src/assets/icons/eye.svg?react"
 import User from "src/assets/icons/user.svg?react"
-import { AuthResponse, hasAnyEditCapabilities } from "src/hooks/auth"
-import { useTSWebConnected } from "src/hooks/ts-web-connected"
+import { AuthResponse, AuthType } from "src/hooks/auth"
 import { NodeData } from "src/types"
 import Button from "src/ui/button"
 import Popover from "src/ui/popover"
 import ProfilePic from "src/ui/profile-pic"
-import { assertNever, isHTTPS } from "src/utils/util"
 
 export default function LoginToggle({
   node,
@@ -24,29 +22,12 @@ export default function LoginToggle({
   newSession: () => Promise<void>
 }) {
   const [open, setOpen] = useState<boolean>(false)
-  const { tsWebConnected, checkTSWebConnection } = useTSWebConnected(
-    auth.serverMode,
-    node.IPv4
-  )
 
   return (
     <Popover
-      className="p-3 bg-white rounded-lg shadow flex flex-col max-w-[317px]"
+      className="p-3 bg-white rounded-lg shadow flex flex-col gap-2 max-w-[317px]"
       content={
-        auth.serverMode === "readonly" ? (
-          <ReadonlyModeContent auth={auth} />
-        ) : auth.serverMode === "login" ? (
-          <LoginModeContent
-            auth={auth}
-            node={node}
-            tsWebConnected={tsWebConnected}
-            checkTSWebConnection={checkTSWebConnection}
-          />
-        ) : auth.serverMode === "manage" ? (
-          <ManageModeContent auth={auth} node={node} newSession={newSession} />
-        ) : (
-          assertNever(auth.serverMode)
-        )
+        <LoginPopoverContent node={node} auth={auth} newSession={newSession} />
       }
       side="bottom"
       align="end"
@@ -54,303 +35,228 @@ export default function LoginToggle({
       onOpenChange={setOpen}
       asChild
     >
-      <div>
-        {auth.authorized ? (
-          <TriggerWhenManaging auth={auth} open={open} setOpen={setOpen} />
-        ) : (
-          <TriggerWhenReading auth={auth} open={open} setOpen={setOpen} />
-        )}
-      </div>
+      {!auth.canManageNode ? (
+        <button
+          className={cx(
+            "pl-3 py-1 bg-gray-700 rounded-full flex justify-start items-center h-[34px]",
+            { "pr-1": auth.viewerIdentity, "pr-3": !auth.viewerIdentity }
+          )}
+          onClick={() => setOpen(!open)}
+        >
+          <Eye />
+          <div className="text-white leading-snug ml-2 mr-1">Viewing</div>
+          <ChevronDown className="stroke-white w-[15px] h-[15px]" />
+          {auth.viewerIdentity && (
+            <ProfilePic
+              className="ml-2"
+              size="medium"
+              url={auth.viewerIdentity.profilePicUrl}
+            />
+          )}
+        </button>
+      ) : (
+        <div
+          className={cx(
+            "w-[34px] h-[34px] p-1 rounded-full justify-center items-center inline-flex hover:bg-gray-300",
+            {
+              "bg-transparent": !open,
+              "bg-gray-300": open,
+            }
+          )}
+        >
+          <button onClick={() => setOpen(!open)}>
+            <ProfilePic
+              size="medium"
+              url={auth.viewerIdentity?.profilePicUrl}
+            />
+          </button>
+        </div>
+      )}
     </Popover>
   )
 }
 
-/**
- * TriggerWhenManaging is displayed as the trigger for the login popover
- * when the user has an active authorized managment session.
- */
-function TriggerWhenManaging({
-  auth,
-  open,
-  setOpen,
-}: {
-  auth: AuthResponse
-  open: boolean
-  setOpen: (next: boolean) => void
-}) {
-  return (
-    <div
-      className={cx(
-        "w-[34px] h-[34px] p-1 rounded-full justify-center items-center inline-flex hover:bg-gray-300",
-        {
-          "bg-transparent": !open,
-          "bg-gray-300": open,
-        }
-      )}
-    >
-      <button onClick={() => setOpen(!open)}>
-        <ProfilePic size="medium" url={auth.viewerIdentity?.profilePicUrl} />
-      </button>
-    </div>
-  )
-}
-
-/**
- * TriggerWhenReading is displayed as the trigger for the login popover
- * when the user is currently in read mode (doesn't have an authorized
- * management session).
- */
-function TriggerWhenReading({
-  auth,
-  open,
-  setOpen,
-}: {
-  auth: AuthResponse
-  open: boolean
-  setOpen: (next: boolean) => void
-}) {
-  return (
-    <button
-      className={cx(
-        "pl-3 py-1 bg-gray-700 rounded-full flex justify-start items-center h-[34px]",
-        { "pr-1": auth.viewerIdentity, "pr-3": !auth.viewerIdentity }
-      )}
-      onClick={() => setOpen(!open)}
-    >
-      <Eye />
-      <div className="text-white leading-snug ml-2 mr-1">Viewing</div>
-      <ChevronDown className="stroke-white w-[15px] h-[15px]" />
-      {auth.viewerIdentity && (
-        <ProfilePic
-          className="ml-2"
-          size="medium"
-          url={auth.viewerIdentity.profilePicUrl}
-        />
-      )}
-    </button>
-  )
-}
-
-/**
- * PopoverContentHeader is the header for the login popover.
- */
-function PopoverContentHeader({ auth }: { auth: AuthResponse }) {
-  return (
-    <div className="text-black text-sm font-medium leading-tight mb-1">
-      {auth.authorized ? "Managing" : "Viewing"}
-      {auth.viewerIdentity && ` as ${auth.viewerIdentity.loginName}`}
-    </div>
-  )
-}
-
-/**
- * PopoverContentFooter is the footer for the login popover.
- */
-function PopoverContentFooter({ auth }: { auth: AuthResponse }) {
-  return auth.viewerIdentity ? (
-    <>
-      <hr className="my-2" />
-      <div className="flex items-center">
-        <User className="flex-shrink-0" />
-        <p className="text-gray-500 text-xs ml-2">
-          We recognize you because you are accessing this page from{" "}
-          <span className="font-medium">
-            {auth.viewerIdentity.nodeName || auth.viewerIdentity.nodeIP}
-          </span>
-        </p>
-      </div>
-    </>
-  ) : null
-}
-
-/**
- * ReadonlyModeContent is the body of the login popover when the web
- * client is being run in "readonly" server mode.
- */
-function ReadonlyModeContent({ auth }: { auth: AuthResponse }) {
-  return (
-    <>
-      <PopoverContentHeader auth={auth} />
-      <p className="text-gray-500 text-xs">
-        This web interface is running in read-only mode.{" "}
-        <a
-          href="https://tailscale.com/s/web-client-read-only"
-          className="text-blue-700"
-          target="_blank"
-          rel="noreferrer"
-        >
-          Learn more &rarr;
-        </a>
-      </p>
-      <PopoverContentFooter auth={auth} />
-    </>
-  )
-}
-
-/**
- * LoginModeContent is the body of the login popover when the web
- * client is being run in "login" server mode.
- */
-function LoginModeContent({
+function LoginPopoverContent({
   node,
-  auth,
-  tsWebConnected,
-  checkTSWebConnection,
-}: {
-  node: NodeData
-  auth: AuthResponse
-  tsWebConnected: boolean
-  checkTSWebConnection: () => void
-}) {
-  const https = isHTTPS()
-  // We can't run the ts web connection test when the webpage is loaded
-  // over HTTPS. So in this case, we default to presenting a login button
-  // with some helper text reminding the user to check their connection
-  // themselves.
-  const hasACLAccess = https || tsWebConnected
-
-  const hasEditCaps = useMemo(() => {
-    if (!auth.viewerIdentity) {
-      // If not connected to login client over tailscale, we won't know the viewer's
-      // identity. So we must assume they may be able to edit something and have the
-      // management client handle permissions once the user gets there.
-      return true
-    }
-    return hasAnyEditCapabilities(auth)
-  }, [auth])
-
-  const handleLogin = useCallback(() => {
-    // Must be connected over Tailscale to log in.
-    // Send user to Tailscale IP and start check mode
-    const manageURL = `http://${node.IPv4}:5252/?check=now`
-    if (window.self !== window.top) {
-      // If we're inside an iframe, open management client in new window.
-      window.open(manageURL, "_blank")
-    } else {
-      window.location.href = manageURL
-    }
-  }, [node.IPv4])
-
-  return (
-    <div
-      onMouseEnter={
-        hasEditCaps && !hasACLAccess ? checkTSWebConnection : undefined
-      }
-    >
-      <PopoverContentHeader auth={auth} />
-      {!hasACLAccess || !hasEditCaps ? (
-        <>
-          <p className="text-gray-500 text-xs">
-            {!hasEditCaps ? (
-              // ACLs allow access, but user isn't allowed to edit any features,
-              // restricted to readonly. No point in sending them over to the
-              // tailscaleIP:5252 address.
-              <>
-                You don’t have permission to make changes to this device, but
-                you can view most of its details.
-              </>
-            ) : !node.ACLAllowsAnyIncomingTraffic ? (
-              // Tailnet ACLs don't allow access to anyone.
-              <>
-                The current tailnet policy file does not allow connecting to
-                this device.
-              </>
-            ) : (
-              // ACLs don't allow access to this user specifically.
-              <>
-                Cannot access this device’s Tailscale IP. Make sure you are
-                connected to your tailnet, and that your policy file allows
-                access.
-              </>
-            )}{" "}
-            <a
-              href="https://tailscale.com/s/web-client-access"
-              className="text-blue-700"
-              target="_blank"
-              rel="noreferrer"
-            >
-              Learn more &rarr;
-            </a>
-          </p>
-        </>
-      ) : (
-        // User can connect to Tailcale IP; sign in when ready.
-        <>
-          <p className="text-gray-500 text-xs">
-            You can see most of this device’s details. To make changes, you need
-            to sign in.
-          </p>
-          {https && (
-            // we don't know if the user can connect over TS, so
-            // provide extra tips in case they have trouble.
-            <p className="text-gray-500 text-xs font-semibold pt-2">
-              Make sure you are connected to your tailnet, and that your policy
-              file allows access.
-            </p>
-          )}
-          <SignInButton auth={auth} onClick={handleLogin} />
-        </>
-      )}
-      <PopoverContentFooter auth={auth} />
-    </div>
-  )
-}
-
-/**
- * ManageModeContent is the body of the login popover when the web
- * client is being run in "manage" server mode.
- */
-function ManageModeContent({
   auth,
   newSession,
 }: {
   node: NodeData
   auth: AuthResponse
-  newSession: () => void
+  newSession: () => Promise<void>
 }) {
-  const handleLogin = useCallback(() => {
-    if (window.self !== window.top) {
-      // If we're inside an iframe, start session in new window.
-      let url = new URL(window.location.href)
-      url.searchParams.set("check", "now")
-      window.open(url, "_blank")
-    } else {
-      newSession()
-    }
-  }, [newSession])
+  /**
+   * canConnectOverTS indicates whether the current viewer
+   * is able to hit the node's web client that's being served
+   * at http://${node.IP}:5252. If false, this means that the
+   * viewer must connect to the correct tailnet before being
+   * able to sign in.
+   */
+  const [canConnectOverTS, setCanConnectOverTS] = useState<boolean>(false)
+  const [isRunningCheck, setIsRunningCheck] = useState<boolean>(false)
 
-  const hasAnyPermissions = useMemo(() => hasAnyEditCapabilities(auth), [auth])
+  // Whether the current page is loaded over HTTPS.
+  // If it is, then the connectivity check to the management client
+  // will fail with a mixed-content error.
+  const isHTTPS = window.location.protocol === "https:"
+
+  const checkTSConnection = useCallback(() => {
+    if (auth.viewerIdentity || isHTTPS) {
+      // Skip the connectivity check if we either already know we're connected over Tailscale,
+      // or know the connectivity check will fail because the current page is loaded over HTTPS.
+      setCanConnectOverTS(true)
+      return
+    }
+    // Otherwise, test connection to the ts IP.
+    if (isRunningCheck) {
+      return // already checking
+    }
+    setIsRunningCheck(true)
+    fetch(`http://${node.IPv4}:5252/ok`, { mode: "no-cors" })
+      .then(() => {
+        setCanConnectOverTS(true)
+        setIsRunningCheck(false)
+      })
+      .catch(() => setIsRunningCheck(false))
+  }, [auth.viewerIdentity, isRunningCheck, node.IPv4, isHTTPS])
+
+  /**
+   * Checking connection for first time on page load.
+   *
+   * While not connected, we check again whenever the mouse
+   * enters the popover component, to pick up on the user
+   * leaving to turn on Tailscale then returning to the view.
+   * See `onMouseEnter` on the div below.
+   */
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  useEffect(() => checkTSConnection(), [])
+
+  const handleSignInClick = useCallback(() => {
+    if (auth.viewerIdentity && auth.serverMode === "manage") {
+      if (window.self !== window.top) {
+        // if we're inside an iframe, start session in new window
+        let url = new URL(window.location.href)
+        url.searchParams.set("check", "now")
+        window.open(url, "_blank")
+      } else {
+        newSession()
+      }
+    } else {
+      // Must be connected over Tailscale to log in.
+      // Send user to Tailscale IP and start check mode
+      const manageURL = `http://${node.IPv4}:5252/?check=now`
+      if (window.self !== window.top) {
+        // if we're inside an iframe, open management client in new window
+        window.open(manageURL, "_blank")
+      } else {
+        window.location.href = manageURL
+      }
+    }
+  }, [auth.viewerIdentity, auth.serverMode, newSession, node.IPv4])
 
   return (
-    <>
-      <PopoverContentHeader auth={auth} />
-      {!auth.authorized &&
-        (hasAnyPermissions ? (
-          // User is connected over Tailscale, but needs to complete check mode.
-          <>
+    <div onMouseEnter={!canConnectOverTS ? checkTSConnection : undefined}>
+      <div className="text-black text-sm font-medium leading-tight mb-1">
+        {!auth.canManageNode ? "Viewing" : "Managing"}
+        {auth.viewerIdentity && ` as ${auth.viewerIdentity.loginName}`}
+      </div>
+      {!auth.canManageNode && (
+        <>
+          {auth.serverMode === "readonly" ? (
             <p className="text-gray-500 text-xs">
-              To make changes, sign in to confirm your identity. This extra step
-              helps us keep your device secure.
+              This web interface is running in read-only mode.{" "}
+              <a
+                href="https://tailscale.com/s/web-client-read-only"
+                className="text-blue-700"
+                target="_blank"
+                rel="noreferrer"
+              >
+                Learn more &rarr;
+              </a>
             </p>
-            <SignInButton auth={auth} onClick={handleLogin} />
-          </>
-        ) : (
-          // User is connected over tailscale, but doesn't have permission to manage.
-          <p className="text-gray-500 text-xs">
-            You don’t have permission to make changes to this device, but you
-            can view most of its details.{" "}
-            <a
-              href="https://tailscale.com/s/web-client-access"
-              className="text-blue-700"
-              target="_blank"
-              rel="noreferrer"
-            >
-              Learn more &rarr;
-            </a>
-          </p>
-        ))}
-      <PopoverContentFooter auth={auth} />
-    </>
+          ) : !auth.viewerIdentity ? (
+            // User is not connected over Tailscale.
+            // These states are only possible on the login client.
+            <>
+              {!canConnectOverTS ? (
+                <>
+                  <p className="text-gray-500 text-xs">
+                    {!node.ACLAllowsAnyIncomingTraffic ? (
+                      // Tailnet ACLs don't allow access.
+                      <>
+                        The current tailnet policy file does not allow
+                        connecting to this device.
+                      </>
+                    ) : (
+                      // ACLs allow access, but user can't connect.
+                      <>
+                        Cannot access this device’s Tailscale IP. Make sure you
+                        are connected to your tailnet, and that your policy file
+                        allows access.
+                      </>
+                    )}{" "}
+                    <a
+                      href="https://tailscale.com/s/web-client-connection"
+                      className="text-blue-700"
+                      target="_blank"
+                      rel="noreferrer"
+                    >
+                      Learn more &rarr;
+                    </a>
+                  </p>
+                </>
+              ) : (
+                // User can connect to Tailcale IP; sign in when ready.
+                <>
+                  <p className="text-gray-500 text-xs">
+                    You can see most of this device’s details. To make changes,
+                    you need to sign in.
+                  </p>
+                  {isHTTPS && (
+                    // we don't know if the user can connect over TS, so
+                    // provide extra tips in case they have trouble.
+                    <p className="text-gray-500 text-xs font-semibold pt-2">
+                      Make sure you are connected to your tailnet, and that your
+                      policy file allows access.
+                    </p>
+                  )}
+                  <SignInButton auth={auth} onClick={handleSignInClick} />
+                </>
+              )}
+            </>
+          ) : auth.authNeeded === AuthType.tailscale ? (
+            // User is connected over Tailscale, but needs to complete check mode.
+            <>
+              <p className="text-gray-500 text-xs">
+                To make changes, sign in to confirm your identity. This extra
+                step helps us keep your device secure.
+              </p>
+              <SignInButton auth={auth} onClick={handleSignInClick} />
+            </>
+          ) : (
+            // User is connected over tailscale, but doesn't have permission to manage.
+            <p className="text-gray-500 text-xs">
+              You don’t have permission to make changes to this device, but you
+              can view most of its details.
+            </p>
+          )}
+        </>
+      )}
+      {auth.viewerIdentity && (
+        <>
+          <hr className="my-2" />
+          <div className="flex items-center">
+            <User className="flex-shrink-0" />
+            <p className="text-gray-500 text-xs ml-2">
+              We recognize you because you are accessing this page from{" "}
+              <span className="font-medium">
+                {auth.viewerIdentity.nodeName || auth.viewerIdentity.nodeIP}
+              </span>
+            </p>
+          </div>
+        </>
+      )}
+    </div>
   )
 }
 

client/web/src/components/views/device-details-view.tsx

@@ -8,7 +8,6 @@ import ACLTag from "src/components/acl-tag"
 import * as Control from "src/components/control-components"
 import NiceIP from "src/components/nice-ip"
 import { UpdateAvailableNotification } from "src/components/update-available"
-import { AuthResponse, canEdit } from "src/hooks/auth"
 import { NodeData } from "src/types"
 import Button from "src/ui/button"
 import Card from "src/ui/card"
@@ -17,11 +16,11 @@ import QuickCopy from "src/ui/quick-copy"
 import { useLocation } from "wouter"
 
 export default function DeviceDetailsView({
+  readonly,
   node,
-  auth,
 }: {
+  readonly: boolean
   node: NodeData
-  auth: AuthResponse
 }) {
   return (
     <>
@@ -38,11 +37,11 @@ export default function DeviceDetailsView({
                 })}
               />
             </div>
-            {canEdit("account", auth) && <DisconnectDialog />}
+            {!readonly && <DisconnectDialog />}
           </div>
         </Card>
         {node.Features["auto-update"] &&
-          canEdit("account", auth) &&
+          !readonly &&
           node.ClientVersion &&
           !node.ClientVersion.RunningLatest && (
             <UpdateAvailableNotification details={node.ClientVersion} />

client/web/src/components/views/home-view.tsx

@@ -8,18 +8,17 @@ import ArrowRight from "src/assets/icons/arrow-right.svg?react"
 import Machine from "src/assets/icons/machine.svg?react"
 import AddressCard from "src/components/address-copy-card"
 import ExitNodeSelector from "src/components/exit-node-selector"
-import { AuthResponse, canEdit } from "src/hooks/auth"
 import { NodeData } from "src/types"
 import Card from "src/ui/card"
 import { pluralize } from "src/utils/util"
 import { Link, useLocation } from "wouter"
 
 export default function HomeView({
+  readonly,
   node,
-  auth,
 }: {
+  readonly: boolean
   node: NodeData
-  auth: AuthResponse
 }) {
   const [allSubnetRoutes, pendingSubnetRoutes] = useMemo(
     () => [
@@ -64,11 +63,7 @@ export default function HomeView({
         </div>
         {(node.Features["advertise-exit-node"] ||
           node.Features["use-exit-node"]) && (
-          <ExitNodeSelector
-            className="mb-5"
-            node={node}
-            disabled={!canEdit("exitnodes", auth)}
-          />
+          <ExitNodeSelector className="mb-5" node={node} disabled={readonly} />
         )}
         <Link
           className="link font-medium"

client/web/src/hooks/auth.ts

@@ -4,50 +4,25 @@
 import { useCallback, useEffect, useState } from "react"
 import { apiFetch, setSynoToken } from "src/api"
 
+export enum AuthType {
+  synology = "synology",
+  tailscale = "tailscale",
+}
+
 export type AuthResponse = {
-  serverMode: AuthServerMode
-  authorized: boolean
+  authNeeded?: AuthType
+  canManageNode: boolean
+  serverMode: "login" | "readonly" | "manage"
   viewerIdentity?: {
     loginName: string
     nodeName: string
     nodeIP: string
     profilePicUrl?: string
-    capabilities: { [key in PeerCapability]: boolean }
   }
-  needsSynoAuth?: boolean
 }
 
-export type AuthServerMode = "login" | "readonly" | "manage"
-
-export type PeerCapability = "*" | "ssh" | "subnets" | "exitnodes" | "account"
-
-/**
- * canEdit reports whether the given auth response specifies that the viewer
- * has the ability to edit the given capability.
- */
-export function canEdit(cap: PeerCapability, auth: AuthResponse): boolean {
-  if (!auth.authorized || !auth.viewerIdentity) {
-    return false
-  }
-  if (auth.viewerIdentity.capabilities["*"] === true) {
-    return true // can edit all features
-  }
-  return auth.viewerIdentity.capabilities[cap] === true
-}
-
-/**
- * hasAnyEditCapabilities reports whether the given auth response specifies
- * that the viewer has at least one edit capability. If this is true, the
- * user is able to go through the auth flow to authenticate a management
- * session.
- */
-export function hasAnyEditCapabilities(auth: AuthResponse): boolean {
-  return Object.values(auth.viewerIdentity?.capabilities || {}).includes(true)
-}
-
-/**
- * useAuth reports and refreshes Tailscale auth status for the web client.
- */
+// useAuth reports and refreshes Tailscale auth status
+// for the web client.
 export default function useAuth() {
   const [data, setData] = useState<AuthResponse>()
   const [loading, setLoading] = useState<boolean>(true)
@@ -58,16 +33,18 @@ export default function useAuth() {
     return apiFetch<AuthResponse>("/auth", "GET")
       .then((d) => {
         setData(d)
-        if (d.needsSynoAuth) {
-          fetch("/webman/login.cgi")
-            .then((r) => r.json())
-            .then((a) => {
-              setSynoToken(a.SynoToken)
-              setRanSynoAuth(true)
-              setLoading(false)
-            })
-        } else {
-          setLoading(false)
+        switch (d.authNeeded) {
+          case AuthType.synology:
+            fetch("/webman/login.cgi")
+              .then((r) => r.json())
+              .then((a) => {
+                setSynoToken(a.SynoToken)
+                setRanSynoAuth(true)
+                setLoading(false)
+              })
+            break
+          default:
+            setLoading(false)
         }
         return d
       })
@@ -95,13 +72,8 @@ export default function useAuth() {
 
   useEffect(() => {
     loadAuth().then((d) => {
-      if (!d) {
-        return
-      }
       if (
-        !d.authorized &&
-        hasAnyEditCapabilities(d) &&
-        // Start auth flow immediately if browser has requested it.
+        !d?.canManageNode &&
         new URLSearchParams(window.location.search).get("check") === "now"
       ) {
         newSession()

client/web/src/hooks/ts-web-connected.ts

@@ -1,46 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-import { useCallback, useEffect, useState } from "react"
-import { isHTTPS } from "src/utils/util"
-import { AuthServerMode } from "./auth"
-
-/**
- * useTSWebConnected hook is used to check whether the browser is able to
- * connect to the web client served at http://${nodeIPv4}:5252
- */
-export function useTSWebConnected(mode: AuthServerMode, nodeIPv4: string) {
-  const [tsWebConnected, setTSWebConnected] = useState<boolean>(
-    mode === "manage" // browser already on the web client
-  )
-  const [isLoading, setIsLoading] = useState<boolean>(false)
-
-  const checkTSWebConnection = useCallback(() => {
-    if (mode === "manage") {
-      // Already connected to the web client.
-      setTSWebConnected(true)
-      return
-    }
-    if (isHTTPS()) {
-      // When page is loaded over HTTPS, the connectivity check will always
-      // fail with a mixed-content error. In this case don't bother doing
-      // the check.
-      return
-    }
-    if (isLoading) {
-      return // already checking
-    }
-    setIsLoading(true)
-    fetch(`http://${nodeIPv4}:5252/ok`, { mode: "no-cors" })
-      .then(() => {
-        setTSWebConnected(true)
-        setIsLoading(false)
-      })
-      .catch(() => setIsLoading(false))
-  }, [isLoading, mode, nodeIPv4])
-
-  // eslint-disable-next-line react-hooks/exhaustive-deps
-  useEffect(() => checkTSWebConnection(), []) // checking connection for first time on page load
-
-  return { tsWebConnected, checkTSWebConnection, isLoading }
-}

client/web/src/utils/util.ts

@@ -49,10 +49,3 @@ export function isPromise<T = unknown>(val: unknown): val is Promise<T> {
   }
   return typeof val === "object" && "then" in val
 }
-
-/**
- * isHTTPS reports whether the current page is loaded over HTTPS.
- */
-export function isHTTPS() {
-  return window.location.protocol === "https:"
-}

client/web/tailwind.config.js

@@ -1,7 +1,7 @@
-import plugin from "tailwindcss/plugin"
-import styles from "./styles.json"
+const plugin = require("tailwindcss/plugin")
+const styles = require("./styles.json")
 
-const config = {
+module.exports = {
   theme: {
     screens: {
       sm: "420px",
@@ -96,22 +96,20 @@ const config = {
   plugins: [
     plugin(function ({ addVariant }) {
       addVariant("state-open", [
-        "&[data-state=“open”]",
-        "[data-state=“open”] &",
+        '&[data-state="open"]',
+        '[data-state="open"] &',
       ])
       addVariant("state-closed", [
-        "&[data-state=“closed”]",
-        "[data-state=“closed”] &",
+        '&[data-state="closed"]',
+        '[data-state="closed"] &',
       ])
       addVariant("state-delayed-open", [
-        "&[data-state=“delayed-open”]",
-        "[data-state=“delayed-open”] &",
+        '&[data-state="delayed-open"]',
+        '[data-state="delayed-open"] &',
       ])
-      addVariant("state-active", ["&[data-state=“active”]"])
-      addVariant("state-inactive", ["&[data-state=“inactive”]"])
+      addVariant("state-active", ['&[data-state="active"]'])
+      addVariant("state-inactive", ['&[data-state="inactive"]'])
     }),
   ],
   content: ["./src/**/*.html", "./src/**/*.{ts,tsx}", "./index.html"],
 }
-
-export default config

client/web/web.go

@@ -445,188 +445,18 @@ func (s *Server) serveLoginAPI(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-type apiHandler[data any] struct {
-	s *Server
-	w http.ResponseWriter
-	r *http.Request
+type authType string
 
-	// permissionCheck allows for defining whether a requesting peer's
-	// capabilities grant them access to make the given data update.
-	// If permissionCheck reports false, the request fails as unauthorized.
-	permissionCheck func(data data, peer peerCapabilities) bool
-}
-
-// newHandler constructs a new api handler which restricts the given request
-// to the specified permission check. If the permission check fails for
-// the peer associated with the request, an unauthorized error is returned
-// to the client.
-func newHandler[data any](s *Server, w http.ResponseWriter, r *http.Request, permissionCheck func(data data, peer peerCapabilities) bool) *apiHandler[data] {
-	return &apiHandler[data]{
-		s:               s,
-		w:               w,
-		r:               r,
-		permissionCheck: permissionCheck,
-	}
-}
-
-// alwaysAllowed can be passed as the permissionCheck argument to newHandler
-// for requests that are always allowed to complete regardless of a peer's
-// capabilities.
-func alwaysAllowed[data any](_ data, _ peerCapabilities) bool { return true }
-
-func (a *apiHandler[data]) getPeer() (peerCapabilities, error) {
-	// TODO(tailscale/corp#16695,sonia): We also call StatusWithoutPeers and
-	// WhoIs when originally checking for a session from authorizeRequest.
-	// Would be nice if we could pipe those through to here so we don't end
-	// up having to re-call them to grab the peer capabilities.
-	status, err := a.s.lc.StatusWithoutPeers(a.r.Context())
-	if err != nil {
-		return nil, err
-	}
-	whois, err := a.s.lc.WhoIs(a.r.Context(), a.r.RemoteAddr)
-	if err != nil {
-		return nil, err
-	}
-	peer, err := toPeerCapabilities(status, whois)
-	if err != nil {
-		return nil, err
-	}
-	return peer, nil
-}
-
-type noBodyData any // empty type, for use from serveAPI for endpoints with empty body
-
-// handle runs the given handler if the source peer satisfies the
-// constraints for running this request.
-//
-// handle is expected for use when `data` type is empty, or set to
-// `noBodyData` in practice. For requests that expect JSON body data
-// to be attached, use handleJSON instead.
-func (a *apiHandler[data]) handle(h http.HandlerFunc) {
-	peer, err := a.getPeer()
-	if err != nil {
-		http.Error(a.w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	var body data // not used
-	if !a.permissionCheck(body, peer) {
-		http.Error(a.w, "not allowed", http.StatusUnauthorized)
-		return
-	}
-	h(a.w, a.r)
-}
-
-// handleJSON manages decoding the request's body JSON and passing
-// it on to the provided function if the source peer satisfies the
-// constraints for running this request.
-func (a *apiHandler[data]) handleJSON(h func(ctx context.Context, data data) error) {
-	defer a.r.Body.Close()
-	var body data
-	if err := json.NewDecoder(a.r.Body).Decode(&body); err != nil {
-		http.Error(a.w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	peer, err := a.getPeer()
-	if err != nil {
-		http.Error(a.w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	if !a.permissionCheck(body, peer) {
-		http.Error(a.w, "not allowed", http.StatusUnauthorized)
-		return
-	}
-
-	if err := h(a.r.Context(), body); err != nil {
-		http.Error(a.w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	a.w.WriteHeader(http.StatusOK)
-}
-
-// serveAPI serves requests for the web client api.
-// It should only be called by Server.ServeHTTP, via Server.apiHandler,
-// which protects the handler using gorilla csrf.
-func (s *Server) serveAPI(w http.ResponseWriter, r *http.Request) {
-	if r.Method == httpm.PATCH {
-		// Enforce that PATCH requests are always application/json.
-		if ct := r.Header.Get("Content-Type"); ct != "application/json" {
-			http.Error(w, "invalid request", http.StatusBadRequest)
-			return
-		}
-	}
-
-	w.Header().Set("X-CSRF-Token", csrf.Token(r))
-	path := strings.TrimPrefix(r.URL.Path, "/api")
-	switch {
-	case path == "/data" && r.Method == httpm.GET:
-		newHandler[noBodyData](s, w, r, alwaysAllowed).
-			handle(s.serveGetNodeData)
-		return
-	case path == "/exit-nodes" && r.Method == httpm.GET:
-		newHandler[noBodyData](s, w, r, alwaysAllowed).
-			handle(s.serveGetExitNodes)
-		return
-	case path == "/routes" && r.Method == httpm.POST:
-		peerAllowed := func(d postRoutesRequest, p peerCapabilities) bool {
-			if d.SetExitNode && !p.canEdit(capFeatureExitNodes) {
-				return false
-			} else if d.SetRoutes && !p.canEdit(capFeatureSubnets) {
-				return false
-			}
-			return true
-		}
-		newHandler[postRoutesRequest](s, w, r, peerAllowed).
-			handleJSON(s.servePostRoutes)
-		return
-	case path == "/device-details-click" && r.Method == httpm.POST:
-		newHandler[noBodyData](s, w, r, alwaysAllowed).
-			handle(s.serveDeviceDetailsClick)
-		return
-	case path == "/local/v0/logout" && r.Method == httpm.POST:
-		peerAllowed := func(_ noBodyData, peer peerCapabilities) bool {
-			return peer.canEdit(capFeatureAccount)
-		}
-		newHandler[noBodyData](s, w, r, peerAllowed).
-			handle(s.proxyRequestToLocalAPI)
-		return
-	case path == "/local/v0/prefs" && r.Method == httpm.PATCH:
-		peerAllowed := func(data maskedPrefs, peer peerCapabilities) bool {
-			if data.RunSSHSet && !peer.canEdit(capFeatureSSH) {
-				return false
-			}
-			return true
-		}
-		newHandler[maskedPrefs](s, w, r, peerAllowed).
-			handleJSON(s.serveUpdatePrefs)
-		return
-	case path == "/local/v0/update/check" && r.Method == httpm.GET:
-		newHandler[noBodyData](s, w, r, alwaysAllowed).
-			handle(s.proxyRequestToLocalAPI)
-		return
-	case path == "/local/v0/update/check" && r.Method == httpm.POST:
-		peerAllowed := func(_ noBodyData, peer peerCapabilities) bool {
-			return peer.canEdit(capFeatureAccount)
-		}
-		newHandler[noBodyData](s, w, r, peerAllowed).
-			handle(s.proxyRequestToLocalAPI)
-		return
-	case path == "/local/v0/update/progress" && r.Method == httpm.POST:
-		newHandler[noBodyData](s, w, r, alwaysAllowed).
-			handle(s.proxyRequestToLocalAPI)
-		return
-	case path == "/local/v0/upload-client-metrics" && r.Method == httpm.POST:
-		newHandler[noBodyData](s, w, r, alwaysAllowed).
-			handle(s.proxyRequestToLocalAPI)
-		return
-	}
-	http.Error(w, "invalid endpoint", http.StatusNotFound)
-}
+var (
+	synoAuth      authType = "synology"  // user needs a SynoToken for subsequent API calls
+	tailscaleAuth authType = "tailscale" // user needs to complete Tailscale check mode
+)
 
 type authResponse struct {
-	ServerMode     ServerMode      `json:"serverMode"`
-	Authorized     bool            `json:"authorized"` // has an authorized management session
+	AuthNeeded     authType        `json:"authNeeded,omitempty"` // filled when user needs to complete a specific type of auth
+	CanManageNode  bool            `json:"canManageNode"`
 	ViewerIdentity *viewerIdentity `json:"viewerIdentity,omitempty"`
-	NeedsSynoAuth  bool            `json:"needsSynoAuth,omitempty"`
+	ServerMode     ServerMode      `json:"serverMode"`
 }
 
 // viewerIdentity is the Tailscale identity of the source node
@@ -645,11 +475,9 @@ func (s *Server) serveAPIAuth(w http.ResponseWriter, r *http.Request) {
 	var resp authResponse
 	resp.ServerMode = s.mode
 	session, whois, status, sErr := s.getSession(r)
-	var caps peerCapabilities
 
 	if whois != nil {
-		var err error
-		caps, err = toPeerCapabilities(status, whois)
+		caps, err := toPeerCapabilities(status, whois)
 		if err != nil {
 			http.Error(w, sErr.Error(), http.StatusInternalServerError)
 			return
@@ -676,7 +504,7 @@ func (s *Server) serveAPIAuth(w http.ResponseWriter, r *http.Request) {
 				return
 			}
 			if !authorized {
-				resp.NeedsSynoAuth = true
+				resp.AuthNeeded = synoAuth
 				writeJSON(w, resp)
 				return
 			}
@@ -692,17 +520,21 @@ func (s *Server) serveAPIAuth(w http.ResponseWriter, r *http.Request) {
 
 	switch {
 	case sErr != nil && errors.Is(sErr, errNotUsingTailscale):
+		// Restricted to the readonly view, no auth action to take.
 		s.lc.IncrementCounter(r.Context(), "web_client_viewing_local", 1)
-		resp.Authorized = false // restricted to the readonly view
+		resp.AuthNeeded = ""
 	case sErr != nil && errors.Is(sErr, errNotOwner):
+		// Restricted to the readonly view, no auth action to take.
 		s.lc.IncrementCounter(r.Context(), "web_client_viewing_not_owner", 1)
-		resp.Authorized = false // restricted to the readonly view
+		resp.AuthNeeded = ""
 	case sErr != nil && errors.Is(sErr, errTaggedLocalSource):
+		// Restricted to the readonly view, no auth action to take.
 		s.lc.IncrementCounter(r.Context(), "web_client_viewing_local_tag", 1)
-		resp.Authorized = false // restricted to the readonly view
+		resp.AuthNeeded = ""
 	case sErr != nil && errors.Is(sErr, errTaggedRemoteSource):
+		// Restricted to the readonly view, no auth action to take.
 		s.lc.IncrementCounter(r.Context(), "web_client_viewing_remote_tag", 1)
-		resp.Authorized = false // restricted to the readonly view
+		resp.AuthNeeded = ""
 	case sErr != nil && !errors.Is(sErr, errNoSession):
 		// Any other error.
 		http.Error(w, sErr.Error(), http.StatusInternalServerError)
@@ -713,26 +545,16 @@ func (s *Server) serveAPIAuth(w http.ResponseWriter, r *http.Request) {
 		} else {
 			s.lc.IncrementCounter(r.Context(), "web_client_managing_remote", 1)
 		}
-		// User has a valid session. They're now authorized to edit if they
-		// have any edit capabilities. In practice, they won't be sent through
-		// the auth flow if they don't have edit caps, but their ACL granted
-		// permissions may change at any time. The frontend views and backend
-		// endpoints are always restricted to their current capabilities in
-		// addition to a valid session.
-		//
-		// But, we also check the caps here for a better user experience on
-		// the frontend login toggle, which uses resp.Authorized to display
-		// "viewing" vs "managing" copy. If they don't have caps, we want to
-		// display "viewing" even if they have a valid session.
-		resp.Authorized = !caps.isEmpty()
+		resp.CanManageNode = true
+		resp.AuthNeeded = ""
 	default:
+		// whois being nil implies local as the request did not come over Tailscale
 		if whois == nil || (whois.Node.StableID == status.Self.ID) {
-			// whois being nil implies local as the request did not come over Tailscale.
 			s.lc.IncrementCounter(r.Context(), "web_client_viewing_local", 1)
 		} else {
 			s.lc.IncrementCounter(r.Context(), "web_client_viewing_remote", 1)
 		}
-		resp.Authorized = false // not yet authorized
+		resp.AuthNeeded = tailscaleAuth
 	}
 
 	writeJSON(w, resp)
@@ -796,6 +618,32 @@ func (s *Server) serveAPIAuthSessionWait(w http.ResponseWriter, r *http.Request)
 	}
 }
 
+// serveAPI serves requests for the web client api.
+// It should only be called by Server.ServeHTTP, via Server.apiHandler,
+// which protects the handler using gorilla csrf.
+func (s *Server) serveAPI(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("X-CSRF-Token", csrf.Token(r))
+	path := strings.TrimPrefix(r.URL.Path, "/api")
+	switch {
+	case path == "/data" && r.Method == httpm.GET:
+		s.serveGetNodeData(w, r)
+		return
+	case path == "/exit-nodes" && r.Method == httpm.GET:
+		s.serveGetExitNodes(w, r)
+		return
+	case path == "/routes" && r.Method == httpm.POST:
+		s.servePostRoutes(w, r)
+		return
+	case path == "/device-details-click" && r.Method == httpm.POST:
+		s.serveDeviceDetailsClick(w, r)
+		return
+	case strings.HasPrefix(path, "/local/"):
+		s.proxyRequestToLocalAPI(w, r)
+		return
+	}
+	http.Error(w, "invalid endpoint", http.StatusNotFound)
+}
+
 type nodeData struct {
 	ID          tailcfg.StableNodeID
 	Status      string
@@ -1032,23 +880,6 @@ func (s *Server) serveGetExitNodes(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, exitNodes)
 }
 
-// maskedPrefs is the subset of ipn.MaskedPrefs that are
-// allowed to be editable via the web UI.
-type maskedPrefs struct {
-	RunSSHSet bool
-	RunSSH    bool
-}
-
-func (s *Server) serveUpdatePrefs(ctx context.Context, prefs maskedPrefs) error {
-	_, err := s.lc.EditPrefs(ctx, &ipn.MaskedPrefs{
-		RunSSHSet: prefs.RunSSHSet,
-		Prefs: ipn.Prefs{
-			RunSSH: prefs.RunSSH,
-		},
-	})
-	return err
-}
-
 type postRoutesRequest struct {
 	SetExitNode       bool // when set, UseExitNode and AdvertiseExitNode values are applied
 	SetRoutes         bool // when set, AdvertiseRoutes value is applied
@@ -1057,10 +888,18 @@ type postRoutesRequest struct {
 	AdvertiseRoutes   []string
 }
 
-func (s *Server) servePostRoutes(ctx context.Context, data postRoutesRequest) error {
-	prefs, err := s.lc.GetPrefs(ctx)
+func (s *Server) servePostRoutes(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+
+	var data postRoutesRequest
+	if err := json.NewDecoder(r.Body).Decode(&data); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	prefs, err := s.lc.GetPrefs(r.Context())
 	if err != nil {
-		return err
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
 	}
 	var currNonExitRoutes []string
 	var currAdvertisingExitNode bool
@@ -1083,7 +922,8 @@ func (s *Server) servePostRoutes(ctx context.Context, data postRoutesRequest) er
 	routesStr := strings.Join(data.AdvertiseRoutes, ",")
 	routes, err := netutil.CalcAdvertiseRoutes(routesStr, data.AdvertiseExitNode)
 	if err != nil {
-		return err
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
 	}
 
 	hasExitNodeRoute := func(all []netip.Prefix) bool {
@@ -1092,7 +932,8 @@ func (s *Server) servePostRoutes(ctx context.Context, data postRoutesRequest) er
 	}
 
 	if !data.UseExitNode.IsZero() && hasExitNodeRoute(routes) {
-		return errors.New("cannot use and advertise exit node at same time")
+		http.Error(w, "cannot use and advertise exit node at same time", http.StatusBadRequest)
+		return
 	}
 
 	// Make prefs update.
@@ -1104,8 +945,12 @@ func (s *Server) servePostRoutes(ctx context.Context, data postRoutesRequest) er
 			AdvertiseRoutes: routes,
 		},
 	}
-	_, err = s.lc.EditPrefs(ctx, p)
-	return err
+	if _, err := s.lc.EditPrefs(r.Context(), p); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
 }
 
 // tailscaleUp starts the daemon with the provided options.
@@ -1150,15 +995,7 @@ func (s *Server) tailscaleUp(ctx context.Context, st *ipnstate.Status, opt tails
 		if !isRunning {
 			ipnOptions := ipn.Options{AuthKey: opt.AuthKey}
 			if opt.ControlURL != "" {
-				_, err := s.lc.EditPrefs(ctx, &ipn.MaskedPrefs{
-					Prefs: ipn.Prefs{
-						ControlURL: opt.ControlURL,
-					},
-					ControlURLSet: true,
-				})
-				if err != nil {
-					s.logf("edit prefs: %v", err)
-				}
+				ipnOptions.UpdatePrefs = &ipn.Prefs{ControlURL: opt.ControlURL}
 			}
 			if err := s.lc.Start(ctx, ipnOptions); err != nil {
 				s.logf("start: %v", err)
@@ -1252,12 +1089,26 @@ func (s *Server) serveDeviceDetailsClick(w http.ResponseWriter, r *http.Request)
 //
 // The web API request path is expected to exactly match a localapi path,
 // with prefix /api/local/ rather than /localapi/.
+//
+// If the localapi path is not included in localapiAllowlist,
+// the request is rejected.
 func (s *Server) proxyRequestToLocalAPI(w http.ResponseWriter, r *http.Request) {
 	path := strings.TrimPrefix(r.URL.Path, "/api/local")
 	if r.URL.Path == path { // missing prefix
 		http.Error(w, "invalid request", http.StatusBadRequest)
 		return
 	}
+	if r.Method == httpm.PATCH {
+		// enforce that PATCH requests are always application/json
+		if ct := r.Header.Get("Content-Type"); ct != "application/json" {
+			http.Error(w, "invalid request", http.StatusBadRequest)
+			return
+		}
+	}
+	if !slices.Contains(localapiAllowlist, path) {
+		http.Error(w, fmt.Sprintf("%s not allowed from localapi proxy", path), http.StatusForbidden)
+		return
+	}
 
 	localAPIURL := "http://" + apitype.LocalAPIHost + "/localapi" + path
 	req, err := http.NewRequestWithContext(r.Context(), r.Method, localAPIURL, r.Body)
@@ -1282,6 +1133,21 @@ func (s *Server) proxyRequestToLocalAPI(w http.ResponseWriter, r *http.Request)
 	}
 }
 
+// localapiAllowlist is an allowlist of localapi endpoints the
+// web client is allowed to proxy to the client's localapi.
+//
+// Rather than exposing all localapi endpoints over the proxy,
+// this limits to just the ones actually used from the web
+// client frontend.
+var localapiAllowlist = []string{
+	"/v0/logout",
+	"/v0/prefs",
+	"/v0/update/check",
+	"/v0/update/install",
+	"/v0/update/progress",
+	"/v0/upload-client-metrics",
+}
+
 // csrfKey returns a key that can be used for CSRF protection.
 // If an error occurs during key creation, the error is logged and the active process terminated.
 // If the server is running in CGI mode, the key is cached to disk and reused between requests.

client/web/web_test.go

@@ -4,7 +4,6 @@
 package web
 
 import (
-	"bytes"
 	"context"
 	"encoding/json"
 	"errors"
@@ -87,172 +86,75 @@ func TestQnapAuthnURL(t *testing.T) {
 
 // TestServeAPI tests the web client api's handling of
 //  1. invalid endpoint errors
-//  2. permissioning of api endpoints based on node capabilities
+//  2. localapi proxy allowlist
 func TestServeAPI(t *testing.T) {
-	selfTags := views.SliceOf([]string{"tag:server"})
-	self := &ipnstate.PeerStatus{ID: "self", Tags: &selfTags}
-	prefs := &ipn.Prefs{}
-
-	remoteUser := &tailcfg.UserProfile{ID: tailcfg.UserID(1)}
-	remoteIPWithAllCapabilities := "100.100.100.101"
-	remoteIPWithNoCapabilities := "100.100.100.102"
-
 	lal := memnet.Listen("local-tailscaled.sock:80")
 	defer lal.Close()
-	localapi := mockLocalAPI(t,
-		map[string]*apitype.WhoIsResponse{
-			remoteIPWithAllCapabilities: {
-				Node:        &tailcfg.Node{StableID: "node1"},
-				UserProfile: remoteUser,
-				CapMap:      tailcfg.PeerCapMap{tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{"{\"canEdit\":[\"*\"]}"}},
-			},
-			remoteIPWithNoCapabilities: {
-				Node:        &tailcfg.Node{StableID: "node2"},
-				UserProfile: remoteUser,
-			},
-		},
-		func() *ipnstate.PeerStatus { return self },
-		func() *ipn.Prefs { return prefs },
-		nil,
-	)
+	// Serve dummy localapi. Just returns "success".
+	localapi := &http.Server{Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "success")
+	})}
 	defer localapi.Close()
+
 	go localapi.Serve(lal)
-
-	s := &Server{
-		mode:    ManageServerMode,
-		lc:      &tailscale.LocalClient{Dial: lal.Dial},
-		timeNow: time.Now,
-	}
-
-	type requestTest struct {
-		remoteIP     string
-		wantResponse string
-		wantStatus   int
-	}
+	s := &Server{lc: &tailscale.LocalClient{Dial: lal.Dial}}
 
 	tests := []struct {
-		reqPath        string
+		name           string
 		reqMethod      string
+		reqPath        string
 		reqContentType string
-		reqBody        string
-		tests          []requestTest
+		wantResp       string
+		wantStatus     int
 	}{{
-		reqPath:   "/not-an-endpoint",
-		reqMethod: httpm.POST,
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "invalid endpoint",
-			wantStatus:   http.StatusNotFound,
-		}, {
-			remoteIP:     remoteIPWithAllCapabilities,
-			wantResponse: "invalid endpoint",
-			wantStatus:   http.StatusNotFound,
-		}},
+		name:       "invalid_endpoint",
+		reqMethod:  httpm.POST,
+		reqPath:    "/not-an-endpoint",
+		wantResp:   "invalid endpoint",
+		wantStatus: http.StatusNotFound,
 	}, {
-		reqPath:   "/local/v0/not-an-endpoint",
-		reqMethod: httpm.POST,
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "invalid endpoint",
-			wantStatus:   http.StatusNotFound,
-		}, {
-			remoteIP:     remoteIPWithAllCapabilities,
-			wantResponse: "invalid endpoint",
-			wantStatus:   http.StatusNotFound,
-		}},
+		name:       "not_in_localapi_allowlist",
+		reqMethod:  httpm.POST,
+		reqPath:    "/local/v0/not-allowlisted",
+		wantResp:   "/v0/not-allowlisted not allowed from localapi proxy",
+		wantStatus: http.StatusForbidden,
 	}, {
-		reqPath:   "/local/v0/logout",
-		reqMethod: httpm.POST,
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "not allowed", // requesting node has insufficient permissions
-			wantStatus:   http.StatusUnauthorized,
-		}, {
-			remoteIP:     remoteIPWithAllCapabilities,
-			wantResponse: "success", // requesting node has sufficient permissions
-			wantStatus:   http.StatusOK,
-		}},
+		name:       "in_localapi_allowlist",
+		reqMethod:  httpm.POST,
+		reqPath:    "/local/v0/logout",
+		wantResp:   "success", // Successfully allowed to hit localapi.
+		wantStatus: http.StatusOK,
 	}, {
-		reqPath:   "/exit-nodes",
-		reqMethod: httpm.GET,
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "null",
-			wantStatus:   http.StatusOK, // allowed, no additional capabilities required
-		}, {
-			remoteIP:     remoteIPWithAllCapabilities,
-			wantResponse: "null",
-			wantStatus:   http.StatusOK,
-		}},
-	}, {
-		reqPath:   "/routes",
-		reqMethod: httpm.POST,
-		reqBody:   "{\"setExitNode\":true}",
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "not allowed",
-			wantStatus:   http.StatusUnauthorized,
-		}, {
-			remoteIP:   remoteIPWithAllCapabilities,
-			wantStatus: http.StatusOK,
-		}},
-	}, {
-		reqPath:        "/local/v0/prefs",
+		name:           "patch_bad_contenttype",
 		reqMethod:      httpm.PATCH,
-		reqBody:        "{\"runSSHSet\":true}",
-		reqContentType: "application/json",
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "not allowed",
-			wantStatus:   http.StatusUnauthorized,
-		}, {
-			remoteIP:   remoteIPWithAllCapabilities,
-			wantStatus: http.StatusOK,
-		}},
-	}, {
 		reqPath:        "/local/v0/prefs",
-		reqMethod:      httpm.PATCH,
 		reqContentType: "multipart/form-data",
-		tests: []requestTest{{
-			remoteIP:     remoteIPWithNoCapabilities,
-			wantResponse: "invalid request",
-			wantStatus:   http.StatusBadRequest,
-		}, {
-			remoteIP:     remoteIPWithAllCapabilities,
-			wantResponse: "invalid request",
-			wantStatus:   http.StatusBadRequest,
-		}},
+		wantResp:       "invalid request",
+		wantStatus:     http.StatusBadRequest,
 	}}
 	for _, tt := range tests {
-		for _, req := range tt.tests {
-			t.Run(req.remoteIP+"_requesting_"+tt.reqPath, func(t *testing.T) {
-				var reqBody io.Reader
-				if tt.reqBody != "" {
-					reqBody = bytes.NewBuffer([]byte(tt.reqBody))
-				}
-				r := httptest.NewRequest(tt.reqMethod, "/api"+tt.reqPath, reqBody)
-				r.RemoteAddr = req.remoteIP
-				if tt.reqContentType != "" {
-					r.Header.Add("Content-Type", tt.reqContentType)
-				}
-				w := httptest.NewRecorder()
+		t.Run(tt.name, func(t *testing.T) {
+			r := httptest.NewRequest(tt.reqMethod, "/api"+tt.reqPath, nil)
+			if tt.reqContentType != "" {
+				r.Header.Add("Content-Type", tt.reqContentType)
+			}
+			w := httptest.NewRecorder()
 
-				s.serveAPI(w, r)
-				res := w.Result()
-				defer res.Body.Close()
-				if gotStatus := res.StatusCode; req.wantStatus != gotStatus {
-					t.Errorf("wrong status; want=%v, got=%v", req.wantStatus, gotStatus)
-				}
-				body, err := io.ReadAll(res.Body)
-				if err != nil {
-					t.Fatal(err)
-				}
-				gotResp := strings.TrimSuffix(string(body), "\n") // trim trailing newline
-				if req.wantResponse != gotResp {
-					t.Errorf("wrong response; want=%q, got=%q", req.wantResponse, gotResp)
-				}
-			})
-		}
+			s.serveAPI(w, r)
+			res := w.Result()
+			defer res.Body.Close()
+			if gotStatus := res.StatusCode; tt.wantStatus != gotStatus {
+				t.Errorf("wrong status; want=%v, got=%v", tt.wantStatus, gotStatus)
+			}
+			body, err := io.ReadAll(res.Body)
+			if err != nil {
+				t.Fatal(err)
+			}
+			gotResp := strings.TrimSuffix(string(body), "\n") // trim trailing newline
+			if tt.wantResp != gotResp {
+				t.Errorf("wrong response; want=%q, got=%q", tt.wantResp, gotResp)
+			}
+		})
 	}
 }
 
@@ -622,7 +524,7 @@ func TestServeAuth(t *testing.T) {
 			name:          "no-session",
 			path:          "/api/auth",
 			wantStatus:    http.StatusOK,
-			wantResp:      &authResponse{ViewerIdentity: vi, ServerMode: ManageServerMode},
+			wantResp:      &authResponse{AuthNeeded: tailscaleAuth, ViewerIdentity: vi, ServerMode: ManageServerMode},
 			wantNewCookie: false,
 			wantSession:   nil,
 		},
@@ -647,7 +549,7 @@ func TestServeAuth(t *testing.T) {
 			path:       "/api/auth",
 			cookie:     successCookie,
 			wantStatus: http.StatusOK,
-			wantResp:   &authResponse{ViewerIdentity: vi, ServerMode: ManageServerMode},
+			wantResp:   &authResponse{AuthNeeded: tailscaleAuth, ViewerIdentity: vi, ServerMode: ManageServerMode},
 			wantSession: &browserSession{
 				ID:            successCookie,
 				SrcNode:       remoteNode.Node.ID,
@@ -695,7 +597,7 @@ func TestServeAuth(t *testing.T) {
 			path:       "/api/auth",
 			cookie:     successCookie,
 			wantStatus: http.StatusOK,
-			wantResp:   &authResponse{Authorized: true, ViewerIdentity: vi, ServerMode: ManageServerMode},
+			wantResp:   &authResponse{CanManageNode: true, ViewerIdentity: vi, ServerMode: ManageServerMode},
 			wantSession: &browserSession{
 				ID:            successCookie,
 				SrcNode:       remoteNode.Node.ID,
@@ -1219,10 +1121,9 @@ func TestPeerCapabilities(t *testing.T) {
 			status: userOwnedStatus,
 			whois: &apitype.WhoIsResponse{
 				UserProfile: &tailcfg.UserProfile{ID: tailcfg.UserID(2)},
-				Node:        &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
-						"{\"canEdit\":[\"ssh\",\"subnets\"]}",
+						"{\"canEdit\":[\"ssh\",\"subnet\"]}",
 					},
 				},
 			},
@@ -1233,10 +1134,9 @@ func TestPeerCapabilities(t *testing.T) {
 			status: userOwnedStatus,
 			whois: &apitype.WhoIsResponse{
 				UserProfile: &tailcfg.UserProfile{ID: tailcfg.UserID(1)},
-				Node:        &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
-						"{\"canEdit\":[\"ssh\",\"subnets\"]}",
+						"{\"canEdit\":[\"ssh\",\"subnet\"]}",
 					},
 				},
 			},
@@ -1246,7 +1146,6 @@ func TestPeerCapabilities(t *testing.T) {
 			name:   "tag-owned-no-webui-caps",
 			status: tagOwnedStatus,
 			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityDebugPeer: []tailcfg.RawMessage{},
 				},
@@ -1257,71 +1156,68 @@ func TestPeerCapabilities(t *testing.T) {
 			name:   "tag-owned-one-webui-cap",
 			status: tagOwnedStatus,
 			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
-						"{\"canEdit\":[\"ssh\",\"subnets\"]}",
+						"{\"canEdit\":[\"ssh\",\"subnet\"]}",
 					},
 				},
 			},
 			wantCaps: peerCapabilities{
-				capFeatureSSH:     true,
-				capFeatureSubnets: true,
+				capFeatureSSH:    true,
+				capFeatureSubnet: true,
 			},
 		},
 		{
 			name:   "tag-owned-multiple-webui-cap",
 			status: tagOwnedStatus,
 			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
-						"{\"canEdit\":[\"ssh\",\"subnets\"]}",
-						"{\"canEdit\":[\"subnets\",\"exitnodes\",\"*\"]}",
+						"{\"canEdit\":[\"ssh\",\"subnet\"]}",
+						"{\"canEdit\":[\"subnet\",\"exitnode\",\"*\"]}",
 					},
 				},
 			},
 			wantCaps: peerCapabilities{
-				capFeatureSSH:       true,
-				capFeatureSubnets:   true,
-				capFeatureExitNodes: true,
-				capFeatureAll:       true,
+				capFeatureSSH:      true,
+				capFeatureSubnet:   true,
+				capFeatureExitNode: true,
+				capFeatureAll:      true,
 			},
 		},
 		{
 			name:   "tag-owned-case-insensitive-caps",
 			status: tagOwnedStatus,
 			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
-						"{\"canEdit\":[\"SSH\",\"sUBnets\"]}",
+						"{\"canEdit\":[\"SSH\",\"sUBnet\"]}",
 					},
 				},
 			},
 			wantCaps: peerCapabilities{
-				capFeatureSSH:     true,
-				capFeatureSubnets: true,
+				capFeatureSSH:    true,
+				capFeatureSubnet: true,
 			},
 		},
 		{
-			name:   "tag-owned-random-canEdit-contents-get-dropped",
+			name:   "tag-owned-random-canEdit-contents-dont-error",
 			status: tagOwnedStatus,
 			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
 						"{\"canEdit\":[\"unknown-feature\"]}",
 					},
 				},
 			},
-			wantCaps: peerCapabilities{},
+			wantCaps: peerCapabilities{
+				"unknown-feature": true,
+			},
 		},
 		{
 			name:   "tag-owned-no-canEdit-section",
 			status: tagOwnedStatus,
 			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1)},
 				CapMap: tailcfg.PeerCapMap{
 					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
 						"{\"canDoSomething\":[\"*\"]}",
@@ -1330,19 +1226,6 @@ func TestPeerCapabilities(t *testing.T) {
 			},
 			wantCaps: peerCapabilities{},
 		},
-		{
-			name:   "tagged-source-caps-ignored",
-			status: tagOwnedStatus,
-			whois: &apitype.WhoIsResponse{
-				Node: &tailcfg.Node{ID: tailcfg.NodeID(1), Tags: tags.AsSlice()},
-				CapMap: tailcfg.PeerCapMap{
-					tailcfg.PeerCapabilityWebUI: []tailcfg.RawMessage{
-						"{\"canEdit\":[\"ssh\",\"subnets\"]}",
-					},
-				},
-			},
-			wantCaps: peerCapabilities{},
-		},
 	}
 	for _, tt := range toPeerCapsTests {
 		t.Run("toPeerCapabilities-"+tt.name, func(t *testing.T) {
@@ -1366,33 +1249,36 @@ func TestPeerCapabilities(t *testing.T) {
 			name: "empty-caps",
 			caps: nil,
 			wantCanEdit: map[capFeature]bool{
-				capFeatureAll:       false,
-				capFeatureSSH:       false,
-				capFeatureSubnets:   false,
-				capFeatureExitNodes: false,
-				capFeatureAccount:   false,
+				capFeatureAll:      false,
+				capFeatureFunnel:   false,
+				capFeatureSSH:      false,
+				capFeatureSubnet:   false,
+				capFeatureExitNode: false,
+				capFeatureAccount:  false,
 			},
 		},
 		{
 			name: "some-caps",
 			caps: peerCapabilities{capFeatureSSH: true, capFeatureAccount: true},
 			wantCanEdit: map[capFeature]bool{
-				capFeatureAll:       false,
-				capFeatureSSH:       true,
-				capFeatureSubnets:   false,
-				capFeatureExitNodes: false,
-				capFeatureAccount:   true,
+				capFeatureAll:      false,
+				capFeatureFunnel:   false,
+				capFeatureSSH:      true,
+				capFeatureSubnet:   false,
+				capFeatureExitNode: false,
+				capFeatureAccount:  true,
 			},
 		},
 		{
 			name: "wildcard-in-caps",
 			caps: peerCapabilities{capFeatureAll: true, capFeatureAccount: true},
 			wantCanEdit: map[capFeature]bool{
-				capFeatureAll:       true,
-				capFeatureSSH:       true,
-				capFeatureSubnets:   true,
-				capFeatureExitNodes: true,
-				capFeatureAccount:   true,
+				capFeatureAll:      true,
+				capFeatureFunnel:   true,
+				capFeatureSSH:      true,
+				capFeatureSubnet:   true,
+				capFeatureExitNode: true,
+				capFeatureAccount:  true,
 			},
 		},
 	}
@@ -1453,9 +1339,6 @@ func mockLocalAPI(t *testing.T, whoIs map[string]*apitype.WhoIsResponse, self fu
 			metricCapture(metricNames[0].Name)
 			writeJSON(w, struct{}{})
 			return
-		case "/localapi/v0/logout":
-			fmt.Fprintf(w, "success")
-			return
 		default:
 			t.Fatalf("unhandled localapi test endpoint %q, add to localapi handler func in test", r.URL.Path)
 		}

client/web/yarn.lock

@@ -20,7 +20,23 @@
     "@jridgewell/gen-mapping" "^0.3.0"
     "@jridgewell/trace-mapping" "^0.3.9"
 
-"@babel/code-frame@^7.0.0", "@babel/code-frame@^7.22.13", "@babel/code-frame@^7.23.4":
+"@babel/code-frame@^7.0.0", "@babel/code-frame@^7.22.10", "@babel/code-frame@^7.22.5":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.22.10.tgz#1c20e612b768fefa75f6e90d6ecb86329247f0a3"
+  integrity sha512-/KKIMG4UEL35WmI9OlvMhurwtytjvXoFcGNrOvyG9zIzA8YmPjVtIZUf7b05+TPO7G7/GEmLHDaoCgACHl9hhA==
+  dependencies:
+    "@babel/highlight" "^7.22.10"
+    chalk "^2.4.2"
+
+"@babel/code-frame@^7.22.13":
+  version "7.22.13"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.22.13.tgz#e3c1c099402598483b7a8c46a721d1038803755e"
+  integrity sha512-XktuhWlJ5g+3TJXc5upd9Ks1HutSArik6jf2eAjYFyIOf4ej3RN+184cZbzDvbPnuTJIUhPKKJE3cIsYTiAT3w==
+  dependencies:
+    "@babel/highlight" "^7.22.13"
+    chalk "^2.4.2"
+
+"@babel/code-frame@^7.23.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.23.4.tgz#03ae5af150be94392cb5c7ccd97db5a19a5da6aa"
   integrity sha512-r1IONyb6Ia+jYR2vvIDhdWdlTGhqbBoFqLTQidzZ4kepUFH15ejXvFHxCVbtl7BOXIudsIubf4E81xeA3h3IXA==
@@ -28,12 +44,17 @@
     "@babel/highlight" "^7.23.4"
     chalk "^2.4.2"
 
-"@babel/compat-data@^7.22.6", "@babel/compat-data@^7.22.9", "@babel/compat-data@^7.23.3":
+"@babel/compat-data@^7.22.6", "@babel/compat-data@^7.23.3":
   version "7.23.3"
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.23.3.tgz#3febd552541e62b5e883a25eb3effd7c7379db11"
   integrity sha512-BmR4bWbDIoFJmJ9z2cZ8Gmm2MXgEDgjdWgpKmKWUt54UGFJdlj31ECtbaDvCG/qVdG3AQ1SfpZEs01lUFbzLOQ==
 
-"@babel/core@^7.16.0", "@babel/core@^7.21.3":
+"@babel/compat-data@^7.22.9":
+  version "7.22.9"
+  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.22.9.tgz#71cdb00a1ce3a329ce4cbec3a44f9fef35669730"
+  integrity sha512-5UamI7xkUcJ3i9qVDS+KFDEK8/7oJ55/sJMB1Ge7IEapr7KfdfV/HErR+koZwOfd+SgtFKOKRhRakdg++DcJpQ==
+
+"@babel/core@^7.16.0":
   version "7.23.3"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.23.3.tgz#5ec09c8803b91f51cc887dedc2654a35852849c9"
   integrity sha512-Jg+msLuNuCJDyBvFv5+OKOUjWMZgd85bKjbICd3zWrKAo+bJ49HJufi7CQE0q0uR8NGyO6xkCACScNqyjHSZew==
@@ -54,6 +75,27 @@
     json5 "^2.2.3"
     semver "^6.3.1"
 
+"@babel/core@^7.21.3":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.22.10.tgz#aad442c7bcd1582252cb4576747ace35bc122f35"
+  integrity sha512-fTmqbbUBAwCcre6zPzNngvsI0aNrPZe77AeqvDxWM9Nm+04RrJ3CAmGHA9f7lJQY6ZMhRztNemy4uslDxTX4Qw==
+  dependencies:
+    "@ampproject/remapping" "^2.2.0"
+    "@babel/code-frame" "^7.22.10"
+    "@babel/generator" "^7.22.10"
+    "@babel/helper-compilation-targets" "^7.22.10"
+    "@babel/helper-module-transforms" "^7.22.9"
+    "@babel/helpers" "^7.22.10"
+    "@babel/parser" "^7.22.10"
+    "@babel/template" "^7.22.5"
+    "@babel/traverse" "^7.22.10"
+    "@babel/types" "^7.22.10"
+    convert-source-map "^1.7.0"
+    debug "^4.1.0"
+    gensync "^1.0.0-beta.2"
+    json5 "^2.2.2"
+    semver "^6.3.1"
+
 "@babel/eslint-parser@^7.16.3":
   version "7.23.3"
   resolved "https://registry.yarnpkg.com/@babel/eslint-parser/-/eslint-parser-7.23.3.tgz#7bf0db1c53b54da0c8a12627373554a0828479ca"
@@ -63,6 +105,26 @@
     eslint-visitor-keys "^2.1.0"
     semver "^6.3.1"
 
+"@babel/generator@^7.22.10":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.22.10.tgz#c92254361f398e160645ac58831069707382b722"
+  integrity sha512-79KIf7YiWjjdZ81JnLujDRApWtl7BxTqWD88+FFdQEIOG8LJ0etDOM7CXuIgGJa55sGOwZVwuEsaLEm0PJ5/+A==
+  dependencies:
+    "@babel/types" "^7.22.10"
+    "@jridgewell/gen-mapping" "^0.3.2"
+    "@jridgewell/trace-mapping" "^0.3.17"
+    jsesc "^2.5.1"
+
+"@babel/generator@^7.23.0":
+  version "7.23.0"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.23.0.tgz#df5c386e2218be505b34837acbcb874d7a983420"
+  integrity sha512-lN85QRR+5IbYrMWM6Y4pE/noaQtg4pNiqeNGX60eqOfo6gtEj6uw/JagelB8vVztSd7R6M5n1+PQkDbHbBRU4g==
+  dependencies:
+    "@babel/types" "^7.23.0"
+    "@jridgewell/gen-mapping" "^0.3.2"
+    "@jridgewell/trace-mapping" "^0.3.17"
+    jsesc "^2.5.1"
+
 "@babel/generator@^7.23.3", "@babel/generator@^7.23.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.23.4.tgz#4a41377d8566ec18f807f42962a7f3551de83d1c"
@@ -87,6 +149,17 @@
   dependencies:
     "@babel/types" "^7.22.15"
 
+"@babel/helper-compilation-targets@^7.22.10":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.22.10.tgz#01d648bbc25dd88f513d862ee0df27b7d4e67024"
+  integrity sha512-JMSwHD4J7SLod0idLq5PKgI+6g/hLD/iuWBq08ZX49xE14VpVEojJ5rHWptpirV2j020MvypRLAXAO50igCJ5Q==
+  dependencies:
+    "@babel/compat-data" "^7.22.9"
+    "@babel/helper-validator-option" "^7.22.5"
+    browserslist "^4.21.9"
+    lru-cache "^5.1.1"
+    semver "^6.3.1"
+
 "@babel/helper-compilation-targets@^7.22.15", "@babel/helper-compilation-targets@^7.22.6":
   version "7.22.15"
   resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.22.15.tgz#0698fc44551a26cf29f18d4662d5bf545a6cfc52"
@@ -133,11 +206,16 @@
     lodash.debounce "^4.0.8"
     resolve "^1.14.2"
 
-"@babel/helper-environment-visitor@^7.22.20", "@babel/helper-environment-visitor@^7.22.5":
+"@babel/helper-environment-visitor@^7.22.20":
   version "7.22.20"
   resolved "https://registry.yarnpkg.com/@babel/helper-environment-visitor/-/helper-environment-visitor-7.22.20.tgz#96159db61d34a29dba454c959f5ae4a649ba9167"
   integrity sha512-zfedSIzFhat/gFhWfHtgWvlec0nqB9YEIVrpuwjruLlXfUSnA8cJB0miHKwqDnQ7d32aKo2xt88/xZptwxbfhA==
 
+"@babel/helper-environment-visitor@^7.22.5":
+  version "7.22.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-environment-visitor/-/helper-environment-visitor-7.22.5.tgz#f06dd41b7c1f44e1f8da6c4055b41ab3a09a7e98"
+  integrity sha512-XGmhECfVA/5sAt+H+xpSg0mfrHq6FzNr9Oxh7PSEBBRUb/mL7Kz3NICXb194rCqAEdxkhPT1a88teizAFyvk8Q==
+
 "@babel/helper-function-name@^7.22.5", "@babel/helper-function-name@^7.23.0":
   version "7.23.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.23.0.tgz#1f9a3cdbd5b2698a670c30d2735f9af95ed52759"
@@ -167,6 +245,24 @@
   dependencies:
     "@babel/types" "^7.22.15"
 
+"@babel/helper-module-imports@^7.22.5":
+  version "7.22.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.22.5.tgz#1a8f4c9f4027d23f520bd76b364d44434a72660c"
+  integrity sha512-8Dl6+HD/cKifutF5qGd/8ZJi84QeAKh+CEe1sBzz8UayBBGg1dAIJrdHOcOM5b2MpzWL2yuotJTtGjETq0qjXg==
+  dependencies:
+    "@babel/types" "^7.22.5"
+
+"@babel/helper-module-transforms@^7.22.9":
+  version "7.22.9"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.22.9.tgz#92dfcb1fbbb2bc62529024f72d942a8c97142129"
+  integrity sha512-t+WA2Xn5K+rTeGtC8jCsdAH52bjggG5TKRuRrAGNM/mjIbO4GxvlLMFOEz9wXY5I2XQ60PMFsAG2WIcG82dQMQ==
+  dependencies:
+    "@babel/helper-environment-visitor" "^7.22.5"
+    "@babel/helper-module-imports" "^7.22.5"
+    "@babel/helper-simple-access" "^7.22.5"
+    "@babel/helper-split-export-declaration" "^7.22.6"
+    "@babel/helper-validator-identifier" "^7.22.5"
+
 "@babel/helper-module-transforms@^7.23.3":
   version "7.23.3"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.23.3.tgz#d7d12c3c5d30af5b3c0fcab2a6d5217773e2d0f1"
@@ -229,6 +325,11 @@
   dependencies:
     "@babel/types" "^7.22.5"
 
+"@babel/helper-string-parser@^7.22.5":
+  version "7.22.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-string-parser/-/helper-string-parser-7.22.5.tgz#533f36457a25814cf1df6488523ad547d784a99f"
+  integrity sha512-mM4COjgZox8U+JcXQwPijIZLElkgEpO5rsERVDJTc2qfCDfERyob6k5WegS14SX18IIjv+XD+GrqNumY5JRCDw==
+
 "@babel/helper-string-parser@^7.23.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-string-parser/-/helper-string-parser-7.23.4.tgz#9478c707febcbbe1ddb38a3d91a2e054ae622d83"
@@ -239,11 +340,21 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.22.20.tgz#c4ae002c61d2879e724581d96665583dbc1dc0e0"
   integrity sha512-Y4OZ+ytlatR8AI+8KZfKuL5urKp7qey08ha31L8b3BwewJAoJamTzyvxPR/5D+KkdJCGPq/+8TukHBlY10FX9A==
 
+"@babel/helper-validator-identifier@^7.22.5":
+  version "7.22.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.22.5.tgz#9544ef6a33999343c8740fa51350f30eeaaaf193"
+  integrity sha512-aJXu+6lErq8ltp+JhkJUfk1MTGyuA4v7f3pA+BJ5HLfNC6nAQ0Cpi9uOquUj8Hehg0aUiHzWQbOVJGao6ztBAQ==
+
 "@babel/helper-validator-option@^7.22.15":
   version "7.22.15"
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-option/-/helper-validator-option-7.22.15.tgz#694c30dfa1d09a6534cdfcafbe56789d36aba040"
   integrity sha512-bMn7RmyFjY/mdECUbgn9eoSY4vqvacUnS9i9vGAGttgFWesO6B4CYWA7XlpbWgBt71iv/hfbPlynohStqnu5hA==
 
+"@babel/helper-validator-option@^7.22.5":
+  version "7.22.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-validator-option/-/helper-validator-option-7.22.5.tgz#de52000a15a177413c8234fa3a8af4ee8102d0ac"
+  integrity sha512-R3oB6xlIVKUnxNUxbmgq7pKjxpru24zlimpE8WK47fACIlM0II/Hm1RS8IaOI7NgCr6LNS+jl5l75m20npAziw==
+
 "@babel/helper-wrap-function@^7.22.20":
   version "7.22.20"
   resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.22.20.tgz#15352b0b9bfb10fc9c76f79f6342c00e3411a569"
@@ -253,6 +364,15 @@
     "@babel/template" "^7.22.15"
     "@babel/types" "^7.22.19"
 
+"@babel/helpers@^7.22.10":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.22.10.tgz#ae6005c539dfbcb5cd71fb51bfc8a52ba63bc37a"
+  integrity sha512-a41J4NW8HyZa1I1vAndrraTlPZ/eZoga2ZgS7fEr0tZJGVU4xqdE80CEm0CcNjha5EZ8fTBYLKHF0kqDUuAwQw==
+  dependencies:
+    "@babel/template" "^7.22.5"
+    "@babel/traverse" "^7.22.10"
+    "@babel/types" "^7.22.10"
+
 "@babel/helpers@^7.23.2":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.23.4.tgz#7d2cfb969aa43222032193accd7329851facf3c1"
@@ -262,6 +382,24 @@
     "@babel/traverse" "^7.23.4"
     "@babel/types" "^7.23.4"
 
+"@babel/highlight@^7.22.10":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.22.10.tgz#02a3f6d8c1cb4521b2fd0ab0da8f4739936137d7"
+  integrity sha512-78aUtVcT7MUscr0K5mIEnkwxPE0MaxkR5RxRwuHaQ+JuU5AmTPhY+do2mdzVTnIJJpyBglql2pehuBIWHug+WQ==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.22.5"
+    chalk "^2.4.2"
+    js-tokens "^4.0.0"
+
+"@babel/highlight@^7.22.13":
+  version "7.22.20"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.22.20.tgz#4ca92b71d80554b01427815e06f2df965b9c1f54"
+  integrity sha512-dkdMCN3py0+ksCgYmGG8jKeGA/8Tk+gJwSYYlFGxG5lmhfKNoAy004YpLxpS1W2J8m/EK2Ew+yOs9pVRwO89mg==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.22.20"
+    chalk "^2.4.2"
+    js-tokens "^4.0.0"
+
 "@babel/highlight@^7.23.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.23.4.tgz#edaadf4d8232e1a961432db785091207ead0621b"
@@ -271,7 +409,17 @@
     chalk "^2.4.2"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.22.15", "@babel/parser@^7.23.3", "@babel/parser@^7.23.4":
+"@babel/parser@^7.22.10", "@babel/parser@^7.22.5":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.22.10.tgz#e37634f9a12a1716136c44624ef54283cabd3f55"
+  integrity sha512-lNbdGsQb9ekfsnjFGhEiF4hfFqGgfOP3H3d27re3n+CGhNuTSUEQdfWk556sTLNTloczcdM5TYF2LhzmDQKyvQ==
+
+"@babel/parser@^7.22.15", "@babel/parser@^7.23.0":
+  version "7.23.0"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.23.0.tgz#da950e622420bf96ca0d0f2909cdddac3acd8719"
+  integrity sha512-vvPKKdMemU85V9WE/l5wZEmImpCtLqbnTvqDS2U1fJ96KrxoW7KrXhNsNCblQlg8Ck4b85yxdTyelsMUgFUXiw==
+
+"@babel/parser@^7.23.3", "@babel/parser@^7.23.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.23.4.tgz#409fbe690c333bb70187e2de4021e1e47a026661"
   integrity sha512-vf3Xna6UEprW+7t6EtOmFpHNAuxw3xqPZghy+brsnusscJRW5BMUzzHZc5ICjULee81WeUV2jjakG09MDglJXQ==
@@ -1086,13 +1234,20 @@
   resolved "https://registry.yarnpkg.com/@babel/regjsgen/-/regjsgen-0.8.0.tgz#f0ba69b075e1f05fb2825b7fad991e7adbb18310"
   integrity sha512-x/rqGMdzj+fWZvCOYForTghzbtqPDZ5gPwaoNGHdgDfF2QA/XZbCBp4Moo5scrkAMPhB7z26XM/AaHuIJdgauA==
 
-"@babel/runtime@^7.12.5", "@babel/runtime@^7.13.10", "@babel/runtime@^7.16.3", "@babel/runtime@^7.23.2", "@babel/runtime@^7.8.4":
+"@babel/runtime@^7.12.5", "@babel/runtime@^7.16.3", "@babel/runtime@^7.23.2", "@babel/runtime@^7.8.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.23.4.tgz#36fa1d2b36db873d25ec631dcc4923fdc1cf2e2e"
   integrity sha512-2Yv65nlWnWlSpe3fXEyX5i7fx5kIKo4Qbcj+hMO0odwaneFjfXw5fdum+4yL20O0QiaHpia0cYQ9xpNMqrBwHg==
   dependencies:
     regenerator-runtime "^0.14.0"
 
+"@babel/runtime@^7.13.10":
+  version "7.23.2"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.23.2.tgz#062b0ac103261d68a966c4c7baf2ae3e62ec3885"
+  integrity sha512-mM8eg4yl5D6i3lu2QKPuPH4FArvJ8KhTofbE7jwMUv9KX5mBvwPAqnV3MlyBNqdp9RyRKP6Yck8TrfYrPvX3bg==
+  dependencies:
+    regenerator-runtime "^0.14.0"
+
 "@babel/template@^7.22.15":
   version "7.22.15"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.22.15.tgz#09576efc3830f0430f4548ef971dde1350ef2f38"
@@ -1102,6 +1257,31 @@
     "@babel/parser" "^7.22.15"
     "@babel/types" "^7.22.15"
 
+"@babel/template@^7.22.5":
+  version "7.22.5"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.22.5.tgz#0c8c4d944509875849bd0344ff0050756eefc6ec"
+  integrity sha512-X7yV7eiwAxdj9k94NEylvbVHLiVG1nvzCV2EAowhxLTwODV1jl9UzZ48leOC0sH7OnuHrIkllaBgneUykIcZaw==
+  dependencies:
+    "@babel/code-frame" "^7.22.5"
+    "@babel/parser" "^7.22.5"
+    "@babel/types" "^7.22.5"
+
+"@babel/traverse@^7.22.10":
+  version "7.23.2"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.23.2.tgz#329c7a06735e144a506bdb2cad0268b7f46f4ad8"
+  integrity sha512-azpe59SQ48qG6nu2CzcMLbxUudtN+dOM9kDbUqGq3HXUJRlo7i8fvPoxQUzYgLZ4cMVmuZgm8vvBpNeRhd6XSw==
+  dependencies:
+    "@babel/code-frame" "^7.22.13"
+    "@babel/generator" "^7.23.0"
+    "@babel/helper-environment-visitor" "^7.22.20"
+    "@babel/helper-function-name" "^7.23.0"
+    "@babel/helper-hoist-variables" "^7.22.5"
+    "@babel/helper-split-export-declaration" "^7.22.6"
+    "@babel/parser" "^7.23.0"
+    "@babel/types" "^7.23.0"
+    debug "^4.1.0"
+    globals "^11.1.0"
+
 "@babel/traverse@^7.23.3", "@babel/traverse@^7.23.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.23.4.tgz#c2790f7edf106d059a0098770fe70801417f3f85"
@@ -1118,7 +1298,25 @@
     debug "^4.1.0"
     globals "^11.1.0"
 
-"@babel/types@^7.21.3", "@babel/types@^7.22.15", "@babel/types@^7.22.19", "@babel/types@^7.22.5", "@babel/types@^7.23.0", "@babel/types@^7.23.3", "@babel/types@^7.23.4", "@babel/types@^7.4.4":
+"@babel/types@^7.21.3", "@babel/types@^7.22.10", "@babel/types@^7.22.5":
+  version "7.22.10"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.22.10.tgz#4a9e76446048f2c66982d1a989dd12b8a2d2dc03"
+  integrity sha512-obaoigiLrlDZ7TUQln/8m4mSqIW2QFeOrCQc9r+xsaHGNoplVNYlRVpsfE8Vj35GEm2ZH4ZhrNYogs/3fj85kg==
+  dependencies:
+    "@babel/helper-string-parser" "^7.22.5"
+    "@babel/helper-validator-identifier" "^7.22.5"
+    to-fast-properties "^2.0.0"
+
+"@babel/types@^7.22.15", "@babel/types@^7.23.0":
+  version "7.23.0"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.23.0.tgz#8c1f020c9df0e737e4e247c0619f58c68458aaeb"
+  integrity sha512-0oIyUfKoI3mSqMvsxBdclDwxXKXAUA8v/apZbc+iSyARYou1o8ZGDxbUYyLFoW2arqS2jDGqJuZvv1d/io1axg==
+  dependencies:
+    "@babel/helper-string-parser" "^7.22.5"
+    "@babel/helper-validator-identifier" "^7.22.20"
+    to-fast-properties "^2.0.0"
+
+"@babel/types@^7.22.19", "@babel/types@^7.23.3", "@babel/types@^7.23.4", "@babel/types@^7.4.4":
   version "7.23.4"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.23.4.tgz#7206a1810fc512a7f7f7d4dace4cb4c1c9dbfb8e"
   integrity sha512-7uIFwVYpoplT5jp/kVv6EF93VaJ8H+Yn5IczYiaAi98ajzjfoZfslet/e0sLh+wVBjb2qqIut1b0S26VSafsSQ==
@@ -1247,14 +1445,14 @@
   resolved "https://registry.yarnpkg.com/@esbuild/win32-x64/-/win32-x64-0.19.12.tgz#c57c8afbb4054a3ab8317591a0b7320360b444ae"
   integrity sha512-T1QyPSDCyMXaO3pzBkF96E8xMkiRYbUEZADd29SyPGabqxMViNoii+NcK7eWJAEoU6RZyEm5lVSIjTmcdoB9HA==
 
-"@eslint-community/eslint-utils@^4.2.0", "@eslint-community/eslint-utils@^4.4.0":
+"@eslint-community/eslint-utils@^4.2.0":
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/@eslint-community/eslint-utils/-/eslint-utils-4.4.0.tgz#a23514e8fb9af1269d5f7788aa556798d61c6b59"
   integrity sha512-1/sA4dwrzBAyeUoQ6oxahHKmrZvsnLCg4RfxW3ZFGGmQkSNQPFNLV9CUEFQP1x9EYXHTo5p6xdhZM1Ne9p/AfA==
   dependencies:
     eslint-visitor-keys "^3.3.0"
 
-"@eslint-community/regexpp@^4.5.1", "@eslint-community/regexpp@^4.6.1":
+"@eslint-community/regexpp@^4.4.0", "@eslint-community/regexpp@^4.6.1":
   version "4.10.0"
   resolved "https://registry.yarnpkg.com/@eslint-community/regexpp/-/regexpp-4.10.0.tgz#548f6de556857c8bb73bbee70c35dc82a2e74d63"
   integrity sha512-Cu96Sd2By9mCNTx2iyKOmq10v22jUVQv0lQnlGNy16oE9589yE+QADPbrMGCkA51cKZSg3Pu/aTJVTGfL/qjUA==
@@ -1865,12 +2063,17 @@
   resolved "https://registry.yarnpkg.com/@swc/types/-/types-0.1.5.tgz#043b731d4f56a79b4897a3de1af35e75d56bc63a"
   integrity sha512-myfUej5naTBWnqOCc/MdVOLVjXUXtIA+NpDrDBKJtLLg2shUjBu3cZmB/85RyitKc55+lUUyl7oRfLOvkr2hsw==
 
-"@types/estree@1.0.5", "@types/estree@^1.0.0":
+"@types/estree@1.0.5":
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-1.0.5.tgz#a6ce3e556e00fd9895dd872dd172ad0d4bd687f4"
   integrity sha512-/kYRxGDLWzHOB7q+wtSUQlFrtcdUccpfy+X+9iMBpHK8QLLhx2wIPYuS5DYtR9Wa/YlZAbIovy7qVdB1Aq6Lyw==
 
-"@types/json-schema@^7.0.12", "@types/json-schema@^7.0.9":
+"@types/estree@^1.0.0":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-1.0.1.tgz#aa22750962f3bf0e79d753d3cc067f010c95f194"
+  integrity sha512-LG4opVs2ANWZ1TJoKc937iMmNstM/d0ae1vNbnBvBhqCSezgVUOzcLCqbI5elV8Vy6WKwKjaqR+zO9VKirBBCA==
+
+"@types/json-schema@^7.0.9":
   version "7.0.15"
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.15.tgz#596a1747233694d50f6ad8a7869fcb6f56cf5841"
   integrity sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==
@@ -1918,27 +2121,26 @@
   resolved "https://registry.yarnpkg.com/@types/scheduler/-/scheduler-0.16.3.tgz#cef09e3ec9af1d63d2a6cc5b383a737e24e6dcf5"
   integrity sha512-5cJ8CB4yAx7BH1oMvdU0Jh9lrEXyPkar6F9G/ERswkCuvP4KQZfZkSjcMbAICCpQTN4OuZn8tz0HiKv9TGZgrQ==
 
-"@types/semver@^7.3.12", "@types/semver@^7.5.0":
-  version "7.5.8"
-  resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.5.8.tgz#8268a8c57a3e4abd25c165ecd36237db7948a55e"
-  integrity sha512-I8EUhyrgfLrcTkzV3TSsGyl1tSuPrEDzr0yd5m90UgNxQkyDXULk3b6MlQqTCpZpNtWe1K0hzclnZkTcLBe2UQ==
+"@types/semver@^7.3.12":
+  version "7.5.6"
+  resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.5.6.tgz#c65b2bfce1bec346582c07724e3f8c1017a20339"
+  integrity sha512-dn1l8LaMea/IjDoHNd9J52uBbInB796CDffS6VdIxvqYCPSG0V0DzHp76GpaWnlhg88uYyPbXCDIowa86ybd5A==
 
-"@typescript-eslint/eslint-plugin@^5.5.0", "@typescript-eslint/eslint-plugin@^6.2.1":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-6.21.0.tgz#30830c1ca81fd5f3c2714e524c4303e0194f9cd3"
-  integrity sha512-oy9+hTPCUFpngkEZUSzbf9MxI65wbKFoQYsgPdILTfbUldp5ovUuphZVe4i30emU9M/kP+T64Di0mxl7dSw3MA==
+"@typescript-eslint/eslint-plugin@^5.5.0":
+  version "5.62.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.62.0.tgz#aeef0328d172b9e37d9bab6dbc13b87ed88977db"
+  integrity sha512-TiZzBSJja/LbhNPvk6yc0JrX9XqhQ0hdh6M2svYfsHGejaKFIAGd9MQ+ERIMzLGlN/kZoYIgdxFV0PuljTKXag==
   dependencies:
-    "@eslint-community/regexpp" "^4.5.1"
-    "@typescript-eslint/scope-manager" "6.21.0"
-    "@typescript-eslint/type-utils" "6.21.0"
-    "@typescript-eslint/utils" "6.21.0"
-    "@typescript-eslint/visitor-keys" "6.21.0"
+    "@eslint-community/regexpp" "^4.4.0"
+    "@typescript-eslint/scope-manager" "5.62.0"
+    "@typescript-eslint/type-utils" "5.62.0"
+    "@typescript-eslint/utils" "5.62.0"
     debug "^4.3.4"
     graphemer "^1.4.0"
-    ignore "^5.2.4"
-    natural-compare "^1.4.0"
-    semver "^7.5.4"
-    ts-api-utils "^1.0.1"
+    ignore "^5.2.0"
+    natural-compare-lite "^1.4.0"
+    semver "^7.3.7"
+    tsutils "^3.21.0"
 
 "@typescript-eslint/experimental-utils@^5.0.0":
   version "5.62.0"
@@ -1947,15 +2149,14 @@
   dependencies:
     "@typescript-eslint/utils" "5.62.0"
 
-"@typescript-eslint/parser@^5.5.0", "@typescript-eslint/parser@^6.2.1":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-6.21.0.tgz#af8fcf66feee2edc86bc5d1cf45e33b0630bf35b"
-  integrity sha512-tbsV1jPne5CkFQCgPBcDOt30ItF7aJoZL997JSF7MhGQqOeT3svWRYxiqlfA5RUdlHN6Fi+EI9bxqbdyAUZjYQ==
+"@typescript-eslint/parser@^5.5.0":
+  version "5.62.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-5.62.0.tgz#1b63d082d849a2fcae8a569248fbe2ee1b8a56c7"
+  integrity sha512-VlJEV0fOQ7BExOsHYAGrgbEiZoi8D+Bl2+f6V2RrXerRSylnp+ZBHmPvaIa8cz0Ajx7WO7Z5RqfgYg7ED1nRhA==
   dependencies:
-    "@typescript-eslint/scope-manager" "6.21.0"
-    "@typescript-eslint/types" "6.21.0"
-    "@typescript-eslint/typescript-estree" "6.21.0"
-    "@typescript-eslint/visitor-keys" "6.21.0"
+    "@typescript-eslint/scope-manager" "5.62.0"
+    "@typescript-eslint/types" "5.62.0"
+    "@typescript-eslint/typescript-estree" "5.62.0"
     debug "^4.3.4"
 
 "@typescript-eslint/scope-manager@5.62.0":
@@ -1966,34 +2167,21 @@
     "@typescript-eslint/types" "5.62.0"
     "@typescript-eslint/visitor-keys" "5.62.0"
 
-"@typescript-eslint/scope-manager@6.21.0":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-6.21.0.tgz#ea8a9bfc8f1504a6ac5d59a6df308d3a0630a2b1"
-  integrity sha512-OwLUIWZJry80O99zvqXVEioyniJMa+d2GrqpUTqi5/v5D5rOrppJVBPa0yKCblcigC0/aYAzxxqQ1B+DS2RYsg==
+"@typescript-eslint/type-utils@5.62.0":
+  version "5.62.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-5.62.0.tgz#286f0389c41681376cdad96b309cedd17d70346a"
+  integrity sha512-xsSQreu+VnfbqQpW5vnCJdq1Z3Q0U31qiWmRhr98ONQmcp/yhiPJFPq8MXiJVLiksmOKSjIldZzkebzHuCGzew==
   dependencies:
-    "@typescript-eslint/types" "6.21.0"
-    "@typescript-eslint/visitor-keys" "6.21.0"
-
-"@typescript-eslint/type-utils@6.21.0":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-6.21.0.tgz#6473281cfed4dacabe8004e8521cee0bd9d4c01e"
-  integrity sha512-rZQI7wHfao8qMX3Rd3xqeYSMCL3SoiSQLBATSiVKARdFGCYSRvmViieZjqc58jKgs8Y8i9YvVVhRbHSTA4VBag==
-  dependencies:
-    "@typescript-eslint/typescript-estree" "6.21.0"
-    "@typescript-eslint/utils" "6.21.0"
+    "@typescript-eslint/typescript-estree" "5.62.0"
+    "@typescript-eslint/utils" "5.62.0"
     debug "^4.3.4"
-    ts-api-utils "^1.0.1"
+    tsutils "^3.21.0"
 
 "@typescript-eslint/types@5.62.0":
   version "5.62.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-5.62.0.tgz#258607e60effa309f067608931c3df6fed41fd2f"
   integrity sha512-87NVngcbVXUahrRTqIK27gD2t5Cu1yuCXxbLcFtCzZGlfyVWWh8mLHkoxzjsB6DDNnvdL+fW8MiwPEJyGJQDgQ==
 
-"@typescript-eslint/types@6.21.0":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-6.21.0.tgz#205724c5123a8fef7ecd195075fa6e85bac3436d"
-  integrity sha512-1kFmZ1rOm5epu9NZEZm1kckCDGj5UJEf7P1kliH4LKu/RkwpsfqqGmY2OOcUs18lSlQBKLDYBOGxRVtrMN5lpg==
-
 "@typescript-eslint/typescript-estree@5.62.0":
   version "5.62.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-5.62.0.tgz#7d17794b77fabcac615d6a48fb143330d962eb9b"
@@ -2007,20 +2195,6 @@
     semver "^7.3.7"
     tsutils "^3.21.0"
 
-"@typescript-eslint/typescript-estree@6.21.0":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-6.21.0.tgz#c47ae7901db3b8bddc3ecd73daff2d0895688c46"
-  integrity sha512-6npJTkZcO+y2/kr+z0hc4HwNfrrP4kNYh57ek7yCNlrBjWQ1Y0OS7jiZTkgumrvkX5HkEKXFZkkdFNkaW2wmUQ==
-  dependencies:
-    "@typescript-eslint/types" "6.21.0"
-    "@typescript-eslint/visitor-keys" "6.21.0"
-    debug "^4.3.4"
-    globby "^11.1.0"
-    is-glob "^4.0.3"
-    minimatch "9.0.3"
-    semver "^7.5.4"
-    ts-api-utils "^1.0.1"
-
 "@typescript-eslint/utils@5.62.0", "@typescript-eslint/utils@^5.58.0":
   version "5.62.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-5.62.0.tgz#141e809c71636e4a75daa39faed2fb5f4b10df86"
@@ -2035,19 +2209,6 @@
     eslint-scope "^5.1.1"
     semver "^7.3.7"
 
-"@typescript-eslint/utils@6.21.0":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-6.21.0.tgz#4714e7a6b39e773c1c8e97ec587f520840cd8134"
-  integrity sha512-NfWVaC8HP9T8cbKQxHcsJBY5YE1O33+jpMwN45qzWWaPDZgLIbo12toGMWnmhvCpd3sIxkpDw3Wv1B3dYrbDQQ==
-  dependencies:
-    "@eslint-community/eslint-utils" "^4.4.0"
-    "@types/json-schema" "^7.0.12"
-    "@types/semver" "^7.5.0"
-    "@typescript-eslint/scope-manager" "6.21.0"
-    "@typescript-eslint/types" "6.21.0"
-    "@typescript-eslint/typescript-estree" "6.21.0"
-    semver "^7.5.4"
-
 "@typescript-eslint/visitor-keys@5.62.0":
   version "5.62.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-5.62.0.tgz#2174011917ce582875954ffe2f6912d5931e353e"
@@ -2056,14 +2217,6 @@
     "@typescript-eslint/types" "5.62.0"
     eslint-visitor-keys "^3.3.0"
 
-"@typescript-eslint/visitor-keys@6.21.0":
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-6.21.0.tgz#87a99d077aa507e20e238b11d56cc26ade45fe47"
-  integrity sha512-JJtkDduxLi9bivAB+cYOVMtbkqdPOhZ+ZI5LC47MIRrDV4Yn2o+ZnW10Nkmr28xRpSpdJ6Sm42Hjf2+REYXm0A==
-  dependencies:
-    "@typescript-eslint/types" "6.21.0"
-    eslint-visitor-keys "^3.4.1"
-
 "@ungap/structured-clone@^1.2.0":
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@ungap/structured-clone/-/structured-clone-1.2.0.tgz#756641adb587851b5ccb3e095daf27ae581c8406"
@@ -2130,11 +2283,16 @@ acorn-walk@^8.3.2:
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.3.2.tgz#7703af9415f1b6db9315d6895503862e231d34aa"
   integrity sha512-cjkyv4OtNCIeqhHrfS81QWXoCBPExR/J62oyEqepVw8WaQeSqpW2uhuLPh1m9eWhDuOo/jUXVTlifvesOWp/4A==
 
-acorn@^8.11.3, acorn@^8.9.0:
+acorn@^8.11.3:
   version "8.11.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.11.3.tgz#71e0b14e13a4ec160724b38fb7b0f233b1b81d7a"
   integrity sha512-Y9rRfJG5jcKOE0CLisYbojUjIrIEE7AGMzA/Sm4BslANhbS+cDMpgBdcPT91oJ7OuJ9hYJBx59RjbhxVnrF8Xg==
 
+acorn@^8.9.0:
+  version "8.10.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.10.0.tgz#8be5b3907a67221a81ab23c7889c4c5526b62ec5"
+  integrity sha512-F0SAmZ8iUtS//m8DmCTA0jlh6TDKkHQyK6xc6V4KDTyZKA9dnvX9/3sRTVQrWm79glUAZbnmmNcdYwUIHWVybw==
+
 agent-base@^7.0.2, agent-base@^7.1.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-7.1.0.tgz#536802b76bc0b34aa50195eb2442276d613e3434"
@@ -2421,13 +2579,6 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-brace-expansion@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-2.0.1.tgz#1edc459e0f0c548486ecf9fc99f2221364b9a0ae"
-  integrity sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==
-  dependencies:
-    balanced-match "^1.0.0"
-
 braces@^3.0.2, braces@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.2.tgz#3454e1a462ee8d599e236df336cd9ea4f8afe107"
@@ -2435,7 +2586,17 @@ braces@^3.0.2, braces@~3.0.2:
   dependencies:
     fill-range "^7.0.1"
 
-browserslist@^4.21.10, browserslist@^4.21.9, browserslist@^4.22.1:
+browserslist@^4.21.10, browserslist@^4.21.9:
+  version "4.21.10"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.21.10.tgz#dbbac576628c13d3b2231332cb2ec5a46e015bb0"
+  integrity sha512-bipEBdZfVH5/pwrvqc+Ub0kUPVfGUhlKxbvfD+z1BDnPEO/X98ruXGA1WP5ASpAFKan7Qr6j736IacbZQuAlKQ==
+  dependencies:
+    caniuse-lite "^1.0.30001517"
+    electron-to-chromium "^1.4.477"
+    node-releases "^2.0.13"
+    update-browserslist-db "^1.0.11"
+
+browserslist@^4.22.1:
   version "4.22.1"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.22.1.tgz#ba91958d1a59b87dab6fed8dfbcb3da5e2e9c619"
   integrity sha512-FEVc202+2iuClEhZhrWy6ZiAcRLvNMyYcxZ8raemul1DYVOVdFsbqckWLdsixQZCpJlwe77Z3UTalE7jsjnKfQ==
@@ -2474,7 +2635,17 @@ camelcase@^6.2.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-6.3.0.tgz#5685b95eb209ac9c0c177467778c9c84df58ba9a"
   integrity sha512-Gmy6FhYlCY7uOElZUSbxo2UCDH8owEk996gkbrpsgGtrJLM3J7jGxl9Ic7Qwwj4ivOE5AWZWRMecDdF7hqGjFA==
 
-caniuse-lite@^1.0.30001520, caniuse-lite@^1.0.30001541:
+caniuse-lite@^1.0.30001517:
+  version "1.0.30001519"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001519.tgz#3e7b8b8a7077e78b0eb054d69e6edf5c7df35601"
+  integrity sha512-0QHgqR+Jv4bxHMp8kZ1Kn8CH55OikjKJ6JmKkZYP1F3D7w+lnFXF70nG5eNfsZS89jadi5Ywy5UCSKLAglIRkg==
+
+caniuse-lite@^1.0.30001520:
+  version "1.0.30001520"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001520.tgz#62e2b7a1c7b35269594cf296a80bdf8cb9565006"
+  integrity sha512-tahF5O9EiiTzwTUqAeFjIZbn4Dnqxzz7ktrgGlMYNLH43Ul26IgTMH/zvL3DG0lZxBYnlT04axvInszUsZULdA==
+
+caniuse-lite@^1.0.30001541:
   version "1.0.30001565"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001565.tgz#a528b253c8a2d95d2b415e11d8b9942acc100c4f"
   integrity sha512-xrE//a3O7TP0vaJ8ikzkD2c2NgcVUvsEe2IvFTntV4Yd1Z9FVzh+gW+enX96L0psrbaFMcVcH2l90xNuGDWc8w==
@@ -2587,6 +2758,11 @@ confusing-browser-globals@^1.0.11:
   resolved "https://registry.yarnpkg.com/confusing-browser-globals/-/confusing-browser-globals-1.0.11.tgz#ae40e9b57cdd3915408a2805ebd3a5585608dc81"
   integrity sha512-JsPKdmh8ZkmnHxDk55FZ1TqVLvEQTvoByJZRN9jzI0UjxK/QgAmsphz7PGtqgPieQZ/CQcHWXCR7ATDNhGe+YA==
 
+convert-source-map@^1.7.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.9.0.tgz#7faae62353fb4213366d0ca98358d22e8368b05f"
+  integrity sha512-ASFBup0Mz1uyiIjANan1jzLQami9z1PoYSZCiiYW2FczPbenXc45FZdBZLzOT+r6+iciuEModtmCti+hjaAk0A==
+
 convert-source-map@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-2.0.0.tgz#4b560f649fc4e918dd0ab75cf4961e8bc882d82a"
@@ -2767,6 +2943,11 @@ dot-case@^3.0.4:
     no-case "^3.0.4"
     tslib "^2.0.3"
 
+electron-to-chromium@^1.4.477:
+  version "1.4.490"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.490.tgz#d99286f6e915667fa18ea4554def1aa60eb4d5f1"
+  integrity sha512-6s7NVJz+sATdYnIwhdshx/N/9O6rvMxmhVoDSDFdj6iA45gHR8EQje70+RYsF4GeB+k0IeNSBnP7yG9ZXJFr7A==
+
 electron-to-chromium@^1.4.535:
   version "1.4.596"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.596.tgz#6752d1aa795d942d49dfc5d3764d6ea283fab1d7"
@@ -3198,7 +3379,18 @@ fast-deep-equal@^3.1.1, fast-deep-equal@^3.1.3:
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
   integrity sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==
 
-fast-glob@^3.2.12, fast-glob@^3.2.9:
+fast-glob@^3.2.12:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.3.1.tgz#784b4e897340f3dbbef17413b3f11acf03c874c4"
+  integrity sha512-kNFPyjhh5cKjrUltxs+wFx+ZkbRaxxmZ+X0ZU31SOsxCEtP9VPgtq2teZw1DebupL5GmDaNQ6yKMMVcM41iqDg==
+  dependencies:
+    "@nodelib/fs.stat" "^2.0.2"
+    "@nodelib/fs.walk" "^1.2.3"
+    glob-parent "^5.1.2"
+    merge2 "^1.3.0"
+    micromatch "^4.0.4"
+
+fast-glob@^3.2.9:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.3.2.tgz#a904501e57cfdd2ffcded45e99a54fef55e46129"
   integrity sha512-oX2ruAFQwf/Orj8m737Y5adxDQO0LAB7/S5MnxCdTNDd4p6BsyIVsv9JQsATbTSq8KHRpLwIHbVlUNatxd+1Ow==
@@ -3288,12 +3480,22 @@ fs.realpath@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==
 
-fsevents@~2.3.2, fsevents@~2.3.3:
+fsevents@~2.3.2:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.2.tgz#8a526f78b8fdf4623b709e0b975c52c24c02fd1a"
+  integrity sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==
+
+fsevents@~2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.3.tgz#cac6407785d03675a2a5e1a5305c697b347d90d6"
   integrity sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==
 
-function-bind@^1.1.1, function-bind@^1.1.2:
+function-bind@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
+  integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
+
+function-bind@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.2.tgz#2c02d864d97f3ea6c8830c464cbd11ab6eab7a1c"
   integrity sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==
@@ -3318,7 +3520,7 @@ gensync@^1.0.0-beta.2:
   resolved "https://registry.yarnpkg.com/gensync/-/gensync-1.0.0-beta.2.tgz#32a6ee76c3d7f52d46b2b1ae5d93fea8580a25e0"
   integrity sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg==
 
-get-func-name@^2.0.1, get-func-name@^2.0.2:
+get-func-name@^2.0.0, get-func-name@^2.0.1, get-func-name@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.2.tgz#0d7cf20cd13fda808669ffa88f4ffc7a3943fc41"
   integrity sha512-8vXOvuE167CtIc3OyItco7N/dpRtBbYOsPsXCz7X/PMnlGjYjSGuZJgM1Y7mmew7BKf9BqvLX2tnOVy1BBUsxQ==
@@ -3481,6 +3683,13 @@ has-tostringtag@^1.0.0:
   dependencies:
     has-symbols "^1.0.2"
 
+has@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
+  dependencies:
+    function-bind "^1.1.1"
+
 hasown@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/hasown/-/hasown-2.0.0.tgz#f4c513d454a57b7c7e1650778de226b11700546c"
@@ -3523,10 +3732,10 @@ iconv-lite@0.6.3:
   dependencies:
     safer-buffer ">= 2.1.2 < 3.0.0"
 
-ignore@^5.2.0, ignore@^5.2.4:
-  version "5.3.1"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.3.1.tgz#5073e554cd42c5b33b394375f538b8593e34d4ef"
-  integrity sha512-5Fytz/IraMjqpwfd34ke28PTVMjZjJG2MPn5t7OE4eUCUNf8BAa7b5WUS9/Qvr6mwOQS7Mk6vdsMno5he+T8Xw==
+ignore@^5.2.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.3.0.tgz#67418ae40d34d6999c95ff56016759c718c82f78"
+  integrity sha512-g7dmpshy+gD7mh88OC9NwSGTKoc3kyLAZQRU1mt53Aw/vnvfXnbC+F/7F7QoYVKbV+KNvJx8wArewKy1vXMtlg==
 
 import-fresh@^3.2.1:
   version "3.3.0"
@@ -3618,7 +3827,14 @@ is-callable@^1.1.3, is-callable@^1.1.4, is-callable@^1.2.7:
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.7.tgz#3bc2a85ea742d9e36205dcacdd72ca1fdc51b055"
   integrity sha512-1BC0BVFhS/p0qtw6enp8e+8OD0UrK0oFLztSjNzhcKA3WDuJxxAPXzPuPtKkjEY9UUoEWlX/8fgKeu2S8i9JTA==
 
-is-core-module@^2.13.0, is-core-module@^2.13.1:
+is-core-module@^2.13.0:
+  version "2.13.0"
+  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.13.0.tgz#bb52aa6e2cbd49a30c2ba68c42bf3435ba6072db"
+  integrity sha512-Z7dk6Qo8pOCp3l4tsX2C5ZVas4V+UxwQodwZhLopL91TX8UyyHEXafPcyoeeWuLrwzHcr3igO78wNLwHJHsMCQ==
+  dependencies:
+    has "^1.0.3"
+
+is-core-module@^2.13.1:
   version "2.13.1"
   resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.13.1.tgz#ad0d7532c6fea9da1ebdc82742d74525c6273384"
   integrity sha512-hHrIjvZsftOsvKSn2TRYl63zvxsgE0K+0mYMoH6gD4omR5IWB2KynivBQczo3+wF1cCkjzvptnI9Q0sPU66ilw==
@@ -3957,7 +4173,14 @@ loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.4.0:
   dependencies:
     js-tokens "^3.0.0 || ^4.0.0"
 
-loupe@^2.3.6, loupe@^2.3.7:
+loupe@^2.3.6:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/loupe/-/loupe-2.3.6.tgz#76e4af498103c532d1ecc9be102036a21f787b53"
+  integrity sha512-RaPMZKiMy8/JruncMU5Bt6na1eftNoo++R4Y+N2FrxkDVTrGvcyzFTsaGif4QTeKESheMGegbhw6iUAq+5A8zA==
+  dependencies:
+    get-func-name "^2.0.0"
+
+loupe@^2.3.7:
   version "2.3.7"
   resolved "https://registry.yarnpkg.com/loupe/-/loupe-2.3.7.tgz#6e69b7d4db7d3ab436328013d37d1c8c3540c697"
   integrity sha512-zSMINGVYkdpYSOBmLi0D1Uo7JU9nVdQKrHxC8eYlV+9YKK9WePqAlL7lSlorG/U2Fw1w0hTBmaa/jrQ3UbPHtA==
@@ -4027,13 +4250,6 @@ mimic-fn@^4.0.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-4.0.0.tgz#60a90550d5cb0b239cca65d893b1a53b29871ecc"
   integrity sha512-vqiC06CuhBTUdZH+RYl8sFrL096vA45Ok5ISO6sE/Mr1jRbGH4Csnhi8f3wKVl7x8mO4Au7Ir9D3Oyv1VYMFJw==
 
-minimatch@9.0.3:
-  version "9.0.3"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-9.0.3.tgz#a6e00c3de44c3a542bfaae70abfc22420a6da825"
-  integrity sha512-RHiac9mvaRw0x3AYRgDC1CxAP7HTcNrrECeA8YYJeWnpo+2Q5CegtZjaotWTWxDG3UeGA1coE05iH1mPjT/2mg==
-  dependencies:
-    brace-expansion "^2.0.1"
-
 minimatch@^3.0.4, minimatch@^3.0.5, minimatch@^3.1.1, minimatch@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.1.2.tgz#19cd194bfd3e428f049a70817c038d89ab4be35b"
@@ -4046,7 +4262,17 @@ minimist@^1.2.0, minimist@^1.2.6:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.8.tgz#c1a464e7693302e082a075cee0c057741ac4772c"
   integrity sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==
 
-mlly@^1.2.0, mlly@^1.4.2:
+mlly@^1.2.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/mlly/-/mlly-1.4.0.tgz#830c10d63f1f97bd8785377b24dc2a15d972832b"
+  integrity sha512-ua8PAThnTwpprIaU47EPeZ/bPUVp2QYBbWMphUQpVdBI3Lgqzm5KZQ45Agm3YJedHXaIHl6pBGabaLSUPPSptg==
+  dependencies:
+    acorn "^8.9.0"
+    pathe "^1.1.1"
+    pkg-types "^1.0.3"
+    ufo "^1.1.2"
+
+mlly@^1.4.2:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mlly/-/mlly-1.6.0.tgz#0ecfbddc706857f5e170ccd28c6b0b9c81d3f548"
   integrity sha512-YOvg9hfYQmnaB56Yb+KrJE2u0Yzz5zR+sLejEvF4fzwzV1Al6hkf2vyHTwqCRyv0hCi9rVCqVoXpyYevQIRwLQ==
@@ -4075,11 +4301,21 @@ mz@^2.7.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
+nanoid@^3.3.6:
+  version "3.3.6"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.6.tgz#443380c856d6e9f9824267d960b4236ad583ea4c"
+  integrity sha512-BGcqMMJuToF7i1rt+2PWSNVnWIkGCU78jBG3RxO/bZlnZPK2Cmi2QaffxGO/2RvWi9sL+FAiRiXMgsyxQ1DIDA==
+
 nanoid@^3.3.7:
   version "3.3.7"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.7.tgz#d0c301a691bc8d54efa0a2226ccf3fe2fd656bd8"
   integrity sha512-eSRppjcPIatRIMC1U6UngP8XFcz8MQWGQdt1MTBQ7NaAmvXDfvNxbvWV3x2y6CdEUciCSsDHDQZbhYaB8QEo2g==
 
+natural-compare-lite@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare-lite/-/natural-compare-lite-1.4.0.tgz#17b09581988979fddafe0201e931ba933c96cbb4"
+  integrity sha512-Tj+HTDSJJKaZnfiuw+iaF9skdPpTo2GtEly5JHnWV/hfv2Qj/9RKsGISQtLh2ox3l5EAGw487hnBee0sIJ6v2g==
+
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -4296,7 +4532,12 @@ path-type@^4.0.0:
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-4.0.0.tgz#84ed01c0a7ba380afe09d90a8c180dcd9d03043b"
   integrity sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==
 
-pathe@^1.1.0, pathe@^1.1.1, pathe@^1.1.2:
+pathe@^1.1.0, pathe@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/pathe/-/pathe-1.1.1.tgz#1dd31d382b974ba69809adc9a7a347e65d84829a"
+  integrity sha512-d+RQGp0MAYTIaDBIMmOfMwz3E+LOZnxx1HZd5R18mmCZY0QBlK0LDZfPc8FW8Ed2DlvsuE6PRjroDY+wg4+j/Q==
+
+pathe@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/pathe/-/pathe-1.1.2.tgz#6c4cb47a945692e48a1ddd6e4094d170516437ec"
   integrity sha512-whLdWMYL2TwI08hn8/ZqAbrVemu0LNaNNJZX73O6qaIdCTfXutsLhMkjdENX0qhsQ9uIimo4/aQOmXkoon2nDQ==
@@ -4379,7 +4620,16 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8.4.23, postcss@^8.4.31, postcss@^8.4.35:
+postcss@^8.4.23, postcss@^8.4.31:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
+  dependencies:
+    nanoid "^3.3.6"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
+
+postcss@^8.4.35:
   version "8.4.35"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.35.tgz#60997775689ce09011edf083a549cea44aabe2f7"
   integrity sha512-u5U8qYpBCpN13BsiEB0CbR1Hhh4Gc0zLFuedrHJKMctHCHAGrMdG0PRM/KErzAL3CU6/eckEtmHNB3x6e3c0vA==
@@ -4593,7 +4843,16 @@ resolve-from@^4.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
   integrity sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==
 
-resolve@^1.1.7, resolve@^1.14.2, resolve@^1.19.0, resolve@^1.22.2, resolve@^1.22.4:
+resolve@^1.1.7, resolve@^1.22.2:
+  version "1.22.4"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.22.4.tgz#1dc40df46554cdaf8948a486a10f6ba1e2026c34"
+  integrity sha512-PXNdCiPqDqeUou+w1C2eTQbNfxKSuMxqTCuvlmmMsk1NWHL5fRrhY6Pl0qEYYc6+QqGClco1Qj8XnjPego4wfg==
+  dependencies:
+    is-core-module "^2.13.0"
+    path-parse "^1.0.7"
+    supports-preserve-symlinks-flag "^1.0.0"
+
+resolve@^1.14.2, resolve@^1.19.0, resolve@^1.22.4:
   version "1.22.8"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.22.8.tgz#b6c87a9f2aa06dfab52e3d70ac8cde321fa5a48d"
   integrity sha512-oKWePCxqpd6FlLvGV1VU0x7bkPmmCNolxzjMf4NczoDnQcIWrAF+cPtZn5i6n+RfD2d9i0tzpKnG6Yk168yIyw==
@@ -4700,10 +4959,10 @@ semver@^6.3.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
   integrity sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==
 
-semver@^7.3.7, semver@^7.5.4:
-  version "7.6.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.6.0.tgz#1a46a4db4bffcccd97b743b5005c8325f23d4e2d"
-  integrity sha512-EnwXhrlwXMk9gKu5/flx5sv/an57AkRplG3hTK68W7FRDN+k+OWBj65M7719OkA82XLBxrcX0KSHj+X5COhOVg==
+semver@^7.3.7:
+  version "7.5.4"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
+  integrity sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==
   dependencies:
     lru-cache "^6.0.0"
 
@@ -5002,11 +5261,6 @@ tr46@^5.0.0:
   dependencies:
     punycode "^2.3.1"
 
-ts-api-utils@^1.0.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/ts-api-utils/-/ts-api-utils-1.2.1.tgz#f716c7e027494629485b21c0df6180f4d08f5e8b"
-  integrity sha512-RIYA36cJn2WiH9Hy77hdF9r7oEwxAtB/TS9/S4Qd90Ap4z5FSiin5zEiTL44OII1Y3IIlEvxwxFUVgrHSZ/UpA==
-
 ts-interface-checker@^0.1.9:
   version "0.1.13"
   resolved "https://registry.yarnpkg.com/ts-interface-checker/-/ts-interface-checker-0.1.13.tgz#784fd3d679722bc103b1b4b8030bcddb5db2a699"
@@ -5104,10 +5358,15 @@ typed-array-length@^1.0.4:
     for-each "^0.3.3"
     is-typed-array "^1.1.9"
 
-typescript@^5.3.3:
-  version "5.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.3.3.tgz#b3ce6ba258e72e6305ba66f5c9b452aaee3ffe37"
-  integrity sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==
+typescript@^4.7.4:
+  version "4.9.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.5.tgz#095979f9bcc0d09da324d58d03ce8f8374cbe65a"
+  integrity sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==
+
+ufo@^1.1.2:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/ufo/-/ufo-1.2.0.tgz#28d127a087a46729133fdc89cb1358508b3f80ba"
+  integrity sha512-RsPyTbqORDNDxqAdQPQBpgqhWle1VcTSou/FraClYlHf6TZnQcGslpLcAphNR+sQW4q5lLWLbOsRlh9j24baQg==
 
 ufo@^1.3.2:
   version "1.4.0"
@@ -5157,6 +5416,14 @@ universalify@^0.2.0:
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.2.0.tgz#6451760566fa857534745ab1dde952d1b1761be0"
   integrity sha512-CJ1QgKmNg3CwvAv/kOFmtnEN05f0D/cn9QntgNOQlQF9dgvVTHj3t+8JPdjqawCHk7V/KA+fbUqzZ9XWhcqPUg==
 
+update-browserslist-db@^1.0.11:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/update-browserslist-db/-/update-browserslist-db-1.0.11.tgz#9a2a641ad2907ae7b3616506f4b977851db5b940"
+  integrity sha512-dCwEFf0/oT85M1fHBg4F0jtLwJrutGoHSQXCh7u4o2t1drG+c0a9Flnqww6XUKSfQMPpJBRjU8d4RXB09qtvaA==
+  dependencies:
+    escalade "^3.1.1"
+    picocolors "^1.0.0"
+
 update-browserslist-db@^1.0.13:
   version "1.0.13"
   resolved "https://registry.yarnpkg.com/update-browserslist-db/-/update-browserslist-db-1.0.13.tgz#3c5e4f5c083661bd38ef64b6328c26ed6c8248c4"
@@ -5235,10 +5502,10 @@ vite-tsconfig-paths@^3.5.0:
     recrawl-sync "^2.0.3"
     tsconfig-paths "^4.0.0"
 
-vite@^5.0.0, vite@^5.1.7:
-  version "5.1.7"
-  resolved "https://registry.yarnpkg.com/vite/-/vite-5.1.7.tgz#9f685a2c4c70707fef6d37341b0e809c366da619"
-  integrity sha512-sgnEEFTZYMui/sTlH1/XEnVNHMujOahPLGMxn1+5sIT45Xjng1Ec1K78jRP15dSmVgg5WBin9yO81j3o9OxofA==
+vite@^5.0.0, vite@^5.1.4:
+  version "5.1.4"
+  resolved "https://registry.yarnpkg.com/vite/-/vite-5.1.4.tgz#14e9d3e7a6e488f36284ef13cebe149f060bcfb6"
+  integrity sha512-n+MPqzq+d9nMVTKyewqw6kSt+R3CkvF9QAKY8obiQn8g1fwTscKxyfaYnC632HtBXAQGc1Yjomphwn1dtwGAHg==
   dependencies:
     esbuild "^0.19.3"
     postcss "^8.4.35"

clientupdate/clientupdate.go

@@ -37,18 +37,11 @@ import (
 )
 
 const (
+	CurrentTrack  = ""
 	StableTrack   = "stable"
 	UnstableTrack = "unstable"
 )
 
-var CurrentTrack = func() string {
-	if version.IsUnstableBuild() {
-		return UnstableTrack
-	} else {
-		return StableTrack
-	}
-}()
-
 func versionToTrack(v string) (string, error) {
 	_, rest, ok := strings.Cut(v, ".")
 	if !ok {
@@ -113,7 +106,7 @@ func (args Arguments) validate() error {
 		return fmt.Errorf("only one of Version(%q) or Track(%q) can be set", args.Version, args.Track)
 	}
 	switch args.Track {
-	case StableTrack, UnstableTrack, "":
+	case StableTrack, UnstableTrack, CurrentTrack:
 		// All valid values.
 	default:
 		return fmt.Errorf("unsupported track %q", args.Track)
@@ -126,17 +119,11 @@ type Updater struct {
 	// Update is a platform-specific method that updates the installation. May be
 	// nil (not all platforms support updates from within Tailscale).
 	Update func() error
-
-	// currentVersion is the short form of the current client version as
-	// returned by version.Short(), typically "x.y.z". Used for tests to
-	// override the actual current version.
-	currentVersion string
 }
 
 func NewUpdater(args Arguments) (*Updater, error) {
 	up := Updater{
-		Arguments:      args,
-		currentVersion: version.Short(),
+		Arguments: args,
 	}
 	if up.Stdout == nil {
 		up.Stdout = os.Stdout
@@ -152,15 +139,18 @@ func NewUpdater(args Arguments) (*Updater, error) {
 	if args.ForAutoUpdate && !canAutoUpdate {
 		return nil, errors.ErrUnsupported
 	}
-	if up.Track == "" {
-		if up.Version != "" {
+	if up.Track == CurrentTrack {
+		switch {
+		case up.Version != "":
 			var err error
 			up.Track, err = versionToTrack(args.Version)
 			if err != nil {
 				return nil, err
 			}
-		} else {
-			up.Track = CurrentTrack
+		case version.IsUnstableBuild():
+			up.Track = UnstableTrack
+		default:
+			up.Track = StableTrack
 		}
 	}
 	if up.Arguments.PkgsAddr == "" {
@@ -269,16 +259,13 @@ func Update(args Arguments) error {
 }
 
 func (up *Updater) confirm(ver string) bool {
-	// Only check version when we're not switching tracks.
-	if up.Track == "" || up.Track == CurrentTrack {
-		switch c := cmpver.Compare(up.currentVersion, ver); {
-		case c == 0:
-			up.Logf("already running %v version %v; no update needed", up.Track, ver)
-			return false
-		case c > 0:
-			up.Logf("installed %v version %v is newer than the latest available version %v; no update needed", up.Track, up.currentVersion, ver)
-			return false
-		}
+	switch cmpver.Compare(version.Short(), ver) {
+	case 0:
+		up.Logf("already running %v version %v; no update needed", up.Track, ver)
+		return false
+	case 1:
+		up.Logf("installed %v version %v is newer than the latest available version %v; no update needed", up.Track, version.Short(), ver)
+		return false
 	}
 	if up.Confirm != nil {
 		return up.Confirm(ver)
@@ -449,7 +436,7 @@ func (up *Updater) updateDebLike() error {
 		return fmt.Errorf("apt-get update failed: %w; output:\n%s", err, out)
 	}
 
-	for range 2 {
+	for i := 0; i < 2; i++ {
 		out, err := exec.Command("apt-get", "install", "--yes", "--allow-downgrades", "tailscale="+ver).CombinedOutput()
 		if err != nil {
 			if !bytes.Contains(out, []byte(`dpkg was interrupted`)) {
@@ -664,9 +651,6 @@ func (up *Updater) updateAlpineLike() (err error) {
 		return fmt.Errorf(`failed to parse latest version from "apk info tailscale": %w`, err)
 	}
 	if !up.confirm(ver) {
-		if err := checkOutdatedAlpineRepo(up.Logf, ver, up.Track); err != nil {
-			up.Logf("failed to check whether Alpine release is outdated: %v", err)
-		}
 		return nil
 	}
 
@@ -681,7 +665,6 @@ func (up *Updater) updateAlpineLike() (err error) {
 
 func parseAlpinePackageVersion(out []byte) (string, error) {
 	s := bufio.NewScanner(bytes.NewReader(out))
-	var maxVer string
 	for s.Scan() {
 		// The line should look like this:
 		// tailscale-1.44.2-r0 description:
@@ -693,48 +676,11 @@ func parseAlpinePackageVersion(out []byte) (string, error) {
 		if len(parts) < 3 {
 			return "", fmt.Errorf("malformed info line: %q", line)
 		}
-		ver := parts[1]
-		if cmpver.Compare(ver, maxVer) > 0 {
-			maxVer = ver
-		}
-	}
-	if maxVer != "" {
-		return maxVer, nil
+		return parts[1], nil
 	}
 	return "", errors.New("tailscale version not found in output")
 }
 
-var apkRepoVersionRE = regexp.MustCompile(`v[0-9]+\.[0-9]+`)
-
-func checkOutdatedAlpineRepo(logf logger.Logf, apkVer, track string) error {
-	latest, err := LatestTailscaleVersion(track)
-	if err != nil {
-		return err
-	}
-	if latest == apkVer {
-		// Actually on latest release.
-		return nil
-	}
-	f, err := os.Open("/etc/apk/repositories")
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	// Read the first repo line. Typically, there are multiple repos that all
-	// contain the same version in the path, like:
-	//   https://dl-cdn.alpinelinux.org/alpine/v3.20/main
-	//   https://dl-cdn.alpinelinux.org/alpine/v3.20/community
-	s := bufio.NewScanner(f)
-	if !s.Scan() {
-		return s.Err()
-	}
-	alpineVer := apkRepoVersionRE.FindString(s.Text())
-	if alpineVer != "" {
-		logf("The latest Tailscale release for Linux is %q, but your apk repository only provides %q.\nYour Alpine version is %q, you may need to upgrade the system to get the latest Tailscale version: https://wiki.alpinelinux.org/wiki/Upgrading_Alpine", latest, apkVer, alpineVer)
-	}
-	return nil
-}
-
 func (up *Updater) updateMacSys() error {
 	return errors.New("NOTREACHED: On MacSys builds, `tailscale update` is handled in Swift to launch the GUI updater")
 }
@@ -883,7 +829,7 @@ func (up *Updater) switchOutputToFile() (io.Closer, error) {
 func (up *Updater) installMSI(msi string) error {
 	var err error
 	for tries := 0; tries < 2; tries++ {
-		cmd := exec.Command("msiexec.exe", "/i", filepath.Base(msi), "/quiet", "/norestart", "/qn")
+		cmd := exec.Command("msiexec.exe", "/i", filepath.Base(msi), "/quiet", "/promptrestart", "/qn")
 		cmd.Dir = filepath.Dir(msi)
 		cmd.Stdout = up.Stdout
 		cmd.Stderr = up.Stderr
@@ -893,7 +839,7 @@ func (up *Updater) installMSI(msi string) error {
 			break
 		}
 		up.Logf("Install attempt failed: %v", err)
-		uninstallVersion := up.currentVersion
+		uninstallVersion := version.Short()
 		if v := os.Getenv("TS_DEBUG_UNINSTALL_VERSION"); v != "" {
 			uninstallVersion = v
 		}
@@ -1064,20 +1010,6 @@ func (up *Updater) updateLinuxBinary() error {
 	return nil
 }
 
-func restartSystemdUnit(ctx context.Context) error {
-	if _, err := exec.LookPath("systemctl"); err != nil {
-		// Likely not a systemd-managed distro.
-		return errors.ErrUnsupported
-	}
-	if out, err := exec.Command("systemctl", "daemon-reload").CombinedOutput(); err != nil {
-		return fmt.Errorf("systemctl daemon-reload failed: %w\noutput: %s", err, out)
-	}
-	if out, err := exec.Command("systemctl", "restart", "tailscaled.service").CombinedOutput(); err != nil {
-		return fmt.Errorf("systemctl restart failed: %w\noutput: %s", err, out)
-	}
-	return nil
-}
-
 func (up *Updater) downloadLinuxTarball(ver string) (string, error) {
 	dlDir, err := os.UserCacheDir()
 	if err != nil {
@@ -1344,31 +1276,22 @@ func requestedTailscaleVersion(ver, track string) (string, error) {
 // LatestTailscaleVersion returns the latest released version for the given
 // track from pkgs.tailscale.com.
 func LatestTailscaleVersion(track string) (string, error) {
-	if track == "" {
-		track = CurrentTrack
+	if track == CurrentTrack {
+		if version.IsUnstableBuild() {
+			track = UnstableTrack
+		} else {
+			track = StableTrack
+		}
 	}
 
 	latest, err := latestPackages(track)
 	if err != nil {
 		return "", err
 	}
-	ver := latest.Version
-	switch runtime.GOOS {
-	case "windows":
-		ver = latest.MSIsVersion
-	case "darwin":
-		ver = latest.MacZipsVersion
-	case "linux":
-		ver = latest.TarballsVersion
-		if distro.Get() == distro.Synology {
-			ver = latest.SPKsVersion
-		}
+	if latest.Version == "" {
+		return "", fmt.Errorf("no latest version found for %q track", track)
 	}
-
-	if ver == "" {
-		return "", fmt.Errorf("no latest version found for OS %q on %q track", runtime.GOOS, track)
-	}
-	return ver, nil
+	return latest.Version, nil
 }
 
 type trackPackages struct {

clientupdate/clientupdate_test.go

@@ -251,29 +251,6 @@ tailscale installed size:
 			out:     "",
 			wantErr: true,
 		},
-		{
-			desc: "multiple versions",
-			out: `
-tailscale-1.54.1-r0 description:
-The easiest, most secure way to use WireGuard and 2FA
-
-tailscale-1.54.1-r0 webpage:
-https://tailscale.com/
-
-tailscale-1.54.1-r0 installed size:
-34 MiB
-
-tailscale-1.58.2-r0 description:
-The easiest, most secure way to use WireGuard and 2FA
-
-tailscale-1.58.2-r0 webpage:
-https://tailscale.com/
-
-tailscale-1.58.2-r0 installed size:
-35 MiB
-`,
-			want: "1.58.2",
-		},
 	}
 
 	for _, tt := range tests {
@@ -663,7 +640,7 @@ func genTarball(t *testing.T, path string, files map[string]string) {
 
 func TestWriteFileOverwrite(t *testing.T) {
 	path := filepath.Join(t.TempDir(), "test")
-	for i := range 2 {
+	for i := 0; i < 2; i++ {
 		content := fmt.Sprintf("content %d", i)
 		if err := writeFile(strings.NewReader(content), path, 0600); err != nil {
 			t.Fatal(err)
@@ -846,107 +823,3 @@ func TestParseUnraidPluginVersion(t *testing.T) {
 		})
 	}
 }
-
-func TestConfirm(t *testing.T) {
-	curTrack := CurrentTrack
-	defer func() { CurrentTrack = curTrack }()
-
-	tests := []struct {
-		desc      string
-		fromTrack string
-		toTrack   string
-		fromVer   string
-		toVer     string
-		confirm   func(string) bool
-		want      bool
-	}{
-		{
-			desc:      "on latest stable",
-			fromTrack: StableTrack,
-			toTrack:   StableTrack,
-			fromVer:   "1.66.0",
-			toVer:     "1.66.0",
-			want:      false,
-		},
-		{
-			desc:      "stable upgrade",
-			fromTrack: StableTrack,
-			toTrack:   StableTrack,
-			fromVer:   "1.66.0",
-			toVer:     "1.68.0",
-			want:      true,
-		},
-		{
-			desc:      "unstable upgrade",
-			fromTrack: UnstableTrack,
-			toTrack:   UnstableTrack,
-			fromVer:   "1.67.1",
-			toVer:     "1.67.2",
-			want:      true,
-		},
-		{
-			desc:      "from stable to unstable",
-			fromTrack: StableTrack,
-			toTrack:   UnstableTrack,
-			fromVer:   "1.66.0",
-			toVer:     "1.67.1",
-			want:      true,
-		},
-		{
-			desc:      "from unstable to stable",
-			fromTrack: UnstableTrack,
-			toTrack:   StableTrack,
-			fromVer:   "1.67.1",
-			toVer:     "1.66.0",
-			want:      true,
-		},
-		{
-			desc:      "confirm callback rejects",
-			fromTrack: StableTrack,
-			toTrack:   StableTrack,
-			fromVer:   "1.66.0",
-			toVer:     "1.66.1",
-			confirm: func(string) bool {
-				return false
-			},
-			want: false,
-		},
-		{
-			desc:      "confirm callback allows",
-			fromTrack: StableTrack,
-			toTrack:   StableTrack,
-			fromVer:   "1.66.0",
-			toVer:     "1.66.1",
-			confirm: func(string) bool {
-				return true
-			},
-			want: true,
-		},
-		{
-			desc:      "downgrade",
-			fromTrack: StableTrack,
-			toTrack:   StableTrack,
-			fromVer:   "1.66.1",
-			toVer:     "1.66.0",
-			want:      false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.desc, func(t *testing.T) {
-			CurrentTrack = tt.fromTrack
-			up := Updater{
-				currentVersion: tt.fromVer,
-				Arguments: Arguments{
-					Track:   tt.toTrack,
-					Confirm: tt.confirm,
-					Logf:    t.Logf,
-				},
-			}
-
-			if got := up.confirm(tt.toVer); got != tt.want {
-				t.Errorf("got %v, want %v", got, tt.want)
-			}
-		})
-	}
-}

clientupdate/distsign/distsign_test.go

@@ -445,7 +445,7 @@ type testServer struct {
 
 func newTestServer(t *testing.T) *testServer {
 	var roots []rootKeyPair
-	for range 3 {
+	for i := 0; i < 3; i++ {
 		roots = append(roots, newRootKeyPair(t))
 	}
 

clientupdate/systemd_linux.go

@@ -0,0 +1,37 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+package clientupdate
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/coreos/go-systemd/v22/dbus"
+)
+
+func restartSystemdUnit(ctx context.Context) error {
+	c, err := dbus.NewWithContext(ctx)
+	if err != nil {
+		// Likely not a systemd-managed distro.
+		return errors.ErrUnsupported
+	}
+	defer c.Close()
+	if err := c.ReloadContext(ctx); err != nil {
+		return fmt.Errorf("failed to reload tailsacled.service: %w", err)
+	}
+	ch := make(chan string, 1)
+	if _, err := c.RestartUnitContext(ctx, "tailscaled.service", "replace", ch); err != nil {
+		return fmt.Errorf("failed to restart tailsacled.service: %w", err)
+	}
+	select {
+	case res := <-ch:
+		if res != "done" {
+			return fmt.Errorf("systemd service restart failed with result %q", res)
+		}
+	case <-ctx.Done():
+		return ctx.Err()
+	}
+	return nil
+}

clientupdate/systemd_other.go

@@ -0,0 +1,15 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build !linux
+
+package clientupdate
+
+import (
+	"context"
+	"errors"
+)
+
+func restartSystemdUnit(ctx context.Context) error {
+	return errors.ErrUnsupported
+}

cmd/cloner/cloner.go

@@ -102,7 +102,7 @@ func gen(buf *bytes.Buffer, it *codegen.ImportTracker, typ *types.Named) {
 	writef("}")
 	writef("dst := new(%s)", name)
 	writef("*dst = *src")
-	for i := range t.NumFields() {
+	for i := 0; i < t.NumFields(); i++ {
 		fname := t.Field(i).Name()
 		ft := t.Field(i).Type()
 		if !codegen.ContainsPointers(ft) || codegen.HasNoClone(t.Tag(i)) {

cmd/containerboot/kube.go

@@ -8,7 +8,6 @@ package main
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"log"
 	"net/http"
@@ -19,20 +18,36 @@ import (
 	"tailscale.com/tailcfg"
 )
 
-// storeDeviceID writes deviceID to 'device_id' data field of the named
-// Kubernetes Secret.
-func storeDeviceID(ctx context.Context, secretName string, deviceID tailcfg.StableNodeID) error {
-	s := &kube.Secret{
-		Data: map[string][]byte{
-			"device_id": []byte(deviceID),
-		},
+// findKeyInKubeSecret inspects the kube secret secretName for a data
+// field called "authkey", and returns its value if present.
+func findKeyInKubeSecret(ctx context.Context, secretName string) (string, error) {
+	s, err := kc.GetSecret(ctx, secretName)
+	if err != nil {
+		return "", err
 	}
-	return kc.StrategicMergePatchSecret(ctx, secretName, s, "tailscale-container")
+	ak, ok := s.Data["authkey"]
+	if !ok {
+		return "", nil
+	}
+	return string(ak), nil
 }
 
-// storeDeviceEndpoints writes device's tailnet IPs and MagicDNS name to fields
-// 'device_ips', 'device_fqdn' of the named Kubernetes Secret.
-func storeDeviceEndpoints(ctx context.Context, secretName string, fqdn string, addresses []netip.Prefix) error {
+// storeDeviceInfo writes deviceID into the "device_id" data field of the kube
+// secret secretName.
+func storeDeviceInfo(ctx context.Context, secretName string, deviceID tailcfg.StableNodeID, fqdn string, addresses []netip.Prefix) error {
+	// First check if the secret exists at all. Even if running on
+	// kubernetes, we do not necessarily store state in a k8s secret.
+	if _, err := kc.GetSecret(ctx, secretName); err != nil {
+		if s, ok := err.(*kube.Status); ok {
+			if s.Code >= 400 && s.Code <= 499 {
+				// Assume the secret doesn't exist, or we don't have
+				// permission to access it.
+				return nil
+			}
+		}
+		return err
+	}
+
 	var ips []string
 	for _, addr := range addresses {
 		ips = append(ips, addr.Addr().String())
@@ -42,13 +57,14 @@ func storeDeviceEndpoints(ctx context.Context, secretName string, fqdn string, a
 		return err
 	}
 
-	s := &kube.Secret{
+	m := &kube.Secret{
 		Data: map[string][]byte{
+			"device_id":   []byte(deviceID),
 			"device_fqdn": []byte(fqdn),
 			"device_ips":  deviceIPs,
 		},
 	}
-	return kc.StrategicMergePatchSecret(ctx, secretName, s, "tailscale-container")
+	return kc.StrategicMergePatchSecret(ctx, secretName, m, "tailscale-container")
 }
 
 // deleteAuthKey deletes the 'authkey' field of the given kube
@@ -72,59 +88,9 @@ func deleteAuthKey(ctx context.Context, secretName string) error {
 	return nil
 }
 
-var kc kube.Client
+var kc *kube.Client
 
-// setupKube is responsible for doing any necessary configuration and checks to
-// ensure that tailscale state storage and authentication mechanism will work on
-// Kubernetes.
-func (cfg *settings) setupKube(ctx context.Context) error {
-	if cfg.KubeSecret == "" {
-		return nil
-	}
-	canPatch, canCreate, err := kc.CheckSecretPermissions(ctx, cfg.KubeSecret)
-	if err != nil {
-		return fmt.Errorf("Some Kubernetes permissions are missing, please check your RBAC configuration: %v", err)
-	}
-	cfg.KubernetesCanPatch = canPatch
-
-	s, err := kc.GetSecret(ctx, cfg.KubeSecret)
-	if err != nil && kube.IsNotFoundErr(err) && !canCreate {
-		return fmt.Errorf("Tailscale state Secret %s does not exist and we don't have permissions to create it. "+
-			"If you intend to store tailscale state elsewhere than a Kubernetes Secret, "+
-			"you can explicitly set TS_KUBE_SECRET env var to an empty string. "+
-			"Else ensure that RBAC is set up that allows the service account associated with this installation to create Secrets.", cfg.KubeSecret)
-	} else if err != nil && !kube.IsNotFoundErr(err) {
-		return fmt.Errorf("Getting Tailscale state Secret %s: %v", cfg.KubeSecret, err)
-	}
-
-	if cfg.AuthKey == "" && !isOneStepConfig(cfg) {
-		if s == nil {
-			log.Print("TS_AUTHKEY not provided and kube secret does not exist, login will be interactive if needed.")
-			return nil
-		}
-		keyBytes, _ := s.Data["authkey"]
-		key := string(keyBytes)
-
-		if key != "" {
-			// This behavior of pulling authkeys from kube secrets was added
-			// at the same time as the patch permission, so we can enforce
-			// that we must be able to patch out the authkey after
-			// authenticating if you want to use this feature. This avoids
-			// us having to deal with the case where we might leave behind
-			// an unnecessary reusable authkey in a secret, like a rake in
-			// the grass.
-			if !cfg.KubernetesCanPatch {
-				return errors.New("authkey found in TS_KUBE_SECRET, but the pod doesn't have patch permissions on the secret to manage the authkey.")
-			}
-			cfg.AuthKey = key
-		} else {
-			log.Print("No authkey found in kube secret and TS_AUTHKEY not provided, login will be interactive if needed.")
-		}
-	}
-	return nil
-}
-
-func initKubeClient(root string) {
+func initKube(root string) {
 	if root != "/" {
 		// If we are running in a test, we need to set the root path to the fake
 		// service account directory.
@@ -135,9 +101,9 @@ func initKubeClient(root string) {
 	if err != nil {
 		log.Fatalf("Error creating kube client: %v", err)
 	}
-	if (root != "/") || os.Getenv("TS_KUBERNETES_READ_API_SERVER_ADDRESS_FROM_ENV") == "true" {
-		// Derive the API server address from the environment variables
-		// Used to set http server in tests, or optionally enabled by flag
+	if root != "/" {
+		// If we are running in a test, we need to set the URL to the
+		// httptest server.
 		kc.SetURL(fmt.Sprintf("https://%s:%s", os.Getenv("KUBERNETES_SERVICE_HOST"), os.Getenv("KUBERNETES_SERVICE_PORT_HTTPS")))
 	}
 }

cmd/containerboot/kube_test.go

@@ -1,206 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build linux
-
-package main
-
-import (
-	"context"
-	"errors"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-	"tailscale.com/kube"
-)
-
-func TestSetupKube(t *testing.T) {
-	tests := []struct {
-		name    string
-		cfg     *settings
-		wantErr bool
-		wantCfg *settings
-		kc      kube.Client
-	}{
-		{
-			name: "TS_AUTHKEY set, state Secret exists",
-			cfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, false, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return nil, nil
-				},
-			},
-			wantCfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-		},
-		{
-			name: "TS_AUTHKEY set, state Secret does not exist, we have permissions to create it",
-			cfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, true, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return nil, &kube.Status{Code: 404}
-				},
-			},
-			wantCfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-		},
-		{
-			name: "TS_AUTHKEY set, state Secret does not exist, we do not have permissions to create it",
-			cfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, false, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return nil, &kube.Status{Code: 404}
-				},
-			},
-			wantCfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			wantErr: true,
-		},
-		{
-			name: "TS_AUTHKEY set, we encounter a non-404 error when trying to retrieve the state Secret",
-			cfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, false, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return nil, &kube.Status{Code: 403}
-				},
-			},
-			wantCfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			wantErr: true,
-		},
-		{
-			name: "TS_AUTHKEY set, we encounter a non-404 error when trying to check Secret permissions",
-			cfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			wantCfg: &settings{
-				AuthKey:    "foo",
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, false, errors.New("broken")
-				},
-			},
-			wantErr: true,
-		},
-		{
-			// Interactive login using URL in Pod logs
-			name: "TS_AUTHKEY not set, state Secret does not exist, we have permissions to create it",
-			cfg: &settings{
-				KubeSecret: "foo",
-			},
-			wantCfg: &settings{
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, true, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return nil, &kube.Status{Code: 404}
-				},
-			},
-		},
-		{
-			// Interactive login using URL in Pod logs
-			name: "TS_AUTHKEY not set, state Secret exists, but does not contain auth key",
-			cfg: &settings{
-				KubeSecret: "foo",
-			},
-			wantCfg: &settings{
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, false, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return &kube.Secret{}, nil
-				},
-			},
-		},
-		{
-			name: "TS_AUTHKEY not set, state Secret contains auth key, we do not have RBAC to patch it",
-			cfg: &settings{
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return false, false, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return &kube.Secret{Data: map[string][]byte{"authkey": []byte("foo")}}, nil
-				},
-			},
-			wantCfg: &settings{
-				KubeSecret: "foo",
-			},
-			wantErr: true,
-		},
-		{
-			name: "TS_AUTHKEY not set, state Secret contains auth key, we have RBAC to patch it",
-			cfg: &settings{
-				KubeSecret: "foo",
-			},
-			kc: &kube.FakeClient{
-				CheckSecretPermissionsImpl: func(context.Context, string) (bool, bool, error) {
-					return true, false, nil
-				},
-				GetSecretImpl: func(context.Context, string) (*kube.Secret, error) {
-					return &kube.Secret{Data: map[string][]byte{"authkey": []byte("foo")}}, nil
-				},
-			},
-			wantCfg: &settings{
-				KubeSecret:         "foo",
-				AuthKey:            "foo",
-				KubernetesCanPatch: true,
-			},
-		},
-	}
-
-	for _, tt := range tests {
-		kc = tt.kc
-		t.Run(tt.name, func(t *testing.T) {
-			if err := tt.cfg.setupKube(context.Background()); (err != nil) != tt.wantErr {
-				t.Errorf("settings.setupKube() error = %v, wantErr %v", err, tt.wantErr)
-			}
-			if diff := cmp.Diff(*tt.cfg, *tt.wantCfg); diff != "" {
-				t.Errorf("unexpected contents of settings after running settings.setupKube()\n(-got +want):\n%s", diff)
-			}
-		})
-	}
-}

cmd/containerboot/main.go

@@ -18,11 +18,7 @@
 //     previously advertised routes. To accept routes, use TS_EXTRA_ARGS to pass
 //     in --accept-routes.
 //   - TS_DEST_IP: proxy all incoming Tailscale traffic to the given
-//     destination defined by an IP address.
-//   - TS_EXPERIMENTAL_DEST_DNS_NAME: proxy all incoming Tailscale traffic to the given
-//     destination defined by a DNS name. The DNS name will be periodically resolved and firewall rules updated accordingly.
-//     This is currently intended to be used by the Kubernetes operator (ExternalName Services).
-//     This is an experimental env var and will likely change in the future.
+//     destination.
 //   - TS_TAILNET_TARGET_IP: proxy all incoming non-Tailscale traffic to the given
 //     destination defined by an IP.
 //   - TS_TAILNET_TARGET_FQDN: proxy all incoming non-Tailscale traffic to the given
@@ -52,20 +48,13 @@
 //     ${TS_CERT_DOMAIN}, it will be replaced with the value of the available FQDN.
 //     It cannot be used in conjunction with TS_DEST_IP. The file is watched for changes,
 //     and will be re-applied when it changes.
-//   - TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR: if specified, a path to a
-//     directory that containers tailscaled config in file. The config file needs to be
-//     named cap-<current-tailscaled-cap>.hujson. If this is set, TS_HOSTNAME,
-//     TS_EXTRA_ARGS, TS_AUTHKEY,
+//   - EXPERIMENTAL_TS_CONFIGFILE_PATH: if specified, a path to tailscaled
+//     config. If this is set, TS_HOSTNAME, TS_EXTRA_ARGS, TS_AUTHKEY,
 //     TS_ROUTES, TS_ACCEPT_DNS env vars must not be set. If this is set,
 //     containerboot only runs `tailscaled --config <path-to-this-configfile>`
 //     and not `tailscale up` or `tailscale set`.
 //     The config file contents are currently read once on container start.
 //     NB: This env var is currently experimental and the logic will likely change!
-//     TS_EXPERIMENTAL_ENABLE_FORWARDING_OPTIMIZATIONS: set to true to
-//     autoconfigure the default network interface for optimal performance for
-//     Tailscale subnet router/exit node.
-//     https://tailscale.com/kb/1320/performance-best-practices#linux-optimizations-for-subnet-routers-and-exit-nodes
-//     NB: This env var is currently experimental and the logic will likely change!
 //   - EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS: if set to true
 //     and if this containerboot instance is an L7 ingress proxy (created by
 //     the Kubernetes operator), set up rules to allow proxying cluster traffic,
@@ -93,16 +82,12 @@ import (
 	"fmt"
 	"io/fs"
 	"log"
-	"math"
-	"net"
 	"net/netip"
 	"os"
 	"os/exec"
 	"os/signal"
-	"path"
 	"path/filepath"
 	"reflect"
-	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -115,7 +100,6 @@ import (
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/conffile"
-	kubeutils "tailscale.com/k8s-operator"
 	"tailscale.com/tailcfg"
 	"tailscale.com/types/logger"
 	"tailscale.com/types/ptr"
@@ -138,8 +122,7 @@ func main() {
 		Hostname:                              defaultEnv("TS_HOSTNAME", ""),
 		Routes:                                defaultEnvStringPointer("TS_ROUTES"),
 		ServeConfigPath:                       defaultEnv("TS_SERVE_CONFIG", ""),
-		ProxyTargetIP:                         defaultEnv("TS_DEST_IP", ""),
-		ProxyTargetDNSName:                    defaultEnv("TS_EXPERIMENTAL_DEST_DNS_NAME", ""),
+		ProxyTo:                               defaultEnv("TS_DEST_IP", ""),
 		TailnetTargetIP:                       defaultEnv("TS_TAILNET_TARGET_IP", ""),
 		TailnetTargetFQDN:                     defaultEnv("TS_TAILNET_TARGET_FQDN", ""),
 		DaemonExtraArgs:                       defaultEnv("TS_TAILSCALED_EXTRA_ARGS", ""),
@@ -154,10 +137,9 @@ func main() {
 		Socket:                                defaultEnv("TS_SOCKET", "/tmp/tailscaled.sock"),
 		AuthOnce:                              defaultBool("TS_AUTH_ONCE", false),
 		Root:                                  defaultEnv("TS_TEST_ONLY_ROOT", "/"),
-		TailscaledConfigFilePath:              tailscaledConfigFilePath(),
+		TailscaledConfigFilePath:              defaultEnv("EXPERIMENTAL_TS_CONFIGFILE_PATH", ""),
 		AllowProxyingClusterTrafficViaIngress: defaultBool("EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS", false),
 		PodIP:                                 defaultEnv("POD_IP", ""),
-		EnableForwardingOptimizations:         defaultBool("TS_EXPERIMENTAL_ENABLE_FORWARDING_OPTIMIZATIONS", false),
 	}
 
 	if err := cfg.validate(); err != nil {
@@ -168,8 +150,8 @@ func main() {
 		if err := ensureTunFile(cfg.Root); err != nil {
 			log.Fatalf("Unable to create tuntap device file: %v", err)
 		}
-		if cfg.ProxyTargetIP != "" || cfg.ProxyTargetDNSName != "" || cfg.Routes != nil || cfg.TailnetTargetIP != "" || cfg.TailnetTargetFQDN != "" {
-			if err := ensureIPForwarding(cfg.Root, cfg.ProxyTargetIP, cfg.TailnetTargetIP, cfg.TailnetTargetFQDN, cfg.Routes); err != nil {
+		if cfg.ProxyTo != "" || cfg.Routes != nil || cfg.TailnetTargetIP != "" || cfg.TailnetTargetFQDN != "" {
+			if err := ensureIPForwarding(cfg.Root, cfg.ProxyTo, cfg.TailnetTargetIP, cfg.TailnetTargetFQDN, cfg.Routes); err != nil {
 				log.Printf("Failed to enable IP forwarding: %v", err)
 				log.Printf("To run tailscale as a proxy or router container, IP forwarding must be enabled.")
 				if cfg.InKubernetes {
@@ -181,16 +163,44 @@ func main() {
 		}
 	}
 
+	if cfg.InKubernetes {
+		initKube(cfg.Root)
+	}
+
 	// Context is used for all setup stuff until we're in steady
 	// state, so that if something is hanging we eventually time out
 	// and crashloop the container.
 	bootCtx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
 	defer cancel()
 
-	if cfg.InKubernetes {
-		initKubeClient(cfg.Root)
-		if err := cfg.setupKube(bootCtx); err != nil {
-			log.Fatalf("error setting up for running on Kubernetes: %v", err)
+	if cfg.InKubernetes && cfg.KubeSecret != "" {
+		canPatch, err := kc.CheckSecretPermissions(bootCtx, cfg.KubeSecret)
+		if err != nil {
+			log.Fatalf("Some Kubernetes permissions are missing, please check your RBAC configuration: %v", err)
+		}
+		cfg.KubernetesCanPatch = canPatch
+
+		if cfg.AuthKey == "" && !isOneStepConfig(cfg) {
+			key, err := findKeyInKubeSecret(bootCtx, cfg.KubeSecret)
+			if err != nil {
+				log.Fatalf("Getting authkey from kube secret: %v", err)
+			}
+			if key != "" {
+				// This behavior of pulling authkeys from kube secrets was added
+				// at the same time as the patch permission, so we can enforce
+				// that we must be able to patch out the authkey after
+				// authenticating if you want to use this feature. This avoids
+				// us having to deal with the case where we might leave behind
+				// an unnecessary reusable authkey in a secret, like a rake in
+				// the grass.
+				if !cfg.KubernetesCanPatch {
+					log.Fatalf("authkey found in TS_KUBE_SECRET, but the pod doesn't have patch permissions on the secret to manage the authkey.")
+				}
+				log.Print("Using authkey found in kube secret")
+				cfg.AuthKey = key
+			} else {
+				log.Print("No authkey found in kube secret and TS_AUTHKEY not provided, login will be interactive if needed.")
+			}
 		}
 	}
 
@@ -205,12 +215,6 @@ func main() {
 	}
 	defer killTailscaled()
 
-	if cfg.EnableForwardingOptimizations {
-		if err := client.SetUDPGROForwarding(bootCtx); err != nil {
-			log.Printf("[unexpected] error enabling UDP GRO forwarding: %v", err)
-		}
-	}
-
 	w, err := client.WatchIPNBus(bootCtx, ipn.NotifyInitialNetMap|ipn.NotifyInitialPrefs|ipn.NotifyInitialState)
 	if err != nil {
 		log.Fatalf("failed to watch tailscaled for updates: %v", err)
@@ -321,7 +325,7 @@ authLoop:
 		}
 	}
 
-	if hasKubeStateStore(cfg) && isTwoStepConfigAuthOnce(cfg) {
+	if cfg.InKubernetes && cfg.KubeSecret != "" && cfg.KubernetesCanPatch && isTwoStepConfigAuthOnce(cfg) {
 		// We were told to only auth once, so any secret-bound
 		// authkey is no longer needed. We don't strictly need to
 		// wipe it, but it's good hygiene.
@@ -337,16 +341,14 @@ authLoop:
 	}
 
 	var (
-		startupTasksDone       = false
-		currentIPs             deephash.Sum // tailscale IPs assigned to device
-		currentDeviceID        deephash.Sum // device ID
-		currentDeviceEndpoints deephash.Sum // device FQDN and IPs
+		wantProxy         = cfg.ProxyTo != "" || cfg.TailnetTargetIP != "" || cfg.TailnetTargetFQDN != "" || cfg.AllowProxyingClusterTrafficViaIngress
+		wantDeviceInfo    = cfg.InKubernetes && cfg.KubeSecret != "" && cfg.KubernetesCanPatch
+		startupTasksDone  = false
+		currentIPs        deephash.Sum // tailscale IPs assigned to device
+		currentDeviceInfo deephash.Sum // device ID and fqdn
 
 		currentEgressIPs deephash.Sum
 
-		addrs        []netip.Prefix
-		backendAddrs []net.IP
-
 		certDomain        = new(atomic.Pointer[string])
 		certDomainChanged = make(chan bool, 1)
 	)
@@ -354,50 +356,12 @@ authLoop:
 		go watchServeConfigChanges(ctx, cfg.ServeConfigPath, certDomainChanged, certDomain, client)
 	}
 	var nfr linuxfw.NetfilterRunner
-	if isL3Proxy(cfg) {
+	if wantProxy {
 		nfr, err = newNetfilterRunner(log.Printf)
 		if err != nil {
 			log.Fatalf("error creating new netfilter runner: %v", err)
 		}
 	}
-
-	// Setup for proxies that are configured to proxy to a target specified
-	// by a DNS name (TS_EXPERIMENTAL_DEST_DNS_NAME).
-	const defaultCheckPeriod = time.Minute * 10 // how often to check what IPs the DNS name resolves to
-	var (
-		tc                    = make(chan string, 1)
-		failedResolveAttempts int
-		t                     *time.Timer = time.AfterFunc(defaultCheckPeriod, func() {
-			if cfg.ProxyTargetDNSName != "" {
-				tc <- "recheck"
-			}
-		})
-	)
-	defer t.Stop()
-	// resetTimer resets timer for when to next attempt to resolve the DNS
-	// name for the proxy configured with TS_EXPERIMENTAL_DEST_DNS_NAME. The
-	// timer gets reset to 10 minutes from now unless the last resolution
-	// attempt failed. If one or more consecutive previous resolution
-	// attempts failed, the next resolution attempt will happen after the smallest
-	// of (10 minutes, 2 ^ number-of-consecutive-failed-resolution-attempts
-	// seconds) i.e 2s, 4s, 8s ... 10 minutes.
-	resetTimer := func(lastResolveFailed bool) {
-		if !lastResolveFailed {
-			log.Printf("reconfigureTimer: next DNS resolution attempt in %s", defaultCheckPeriod)
-			t.Reset(defaultCheckPeriod)
-			failedResolveAttempts = 0
-			return
-		}
-		minDelay := 2 // 2 seconds
-		nextTick := time.Second * time.Duration(math.Pow(float64(minDelay), float64(failedResolveAttempts)))
-		if nextTick > defaultCheckPeriod {
-			nextTick = defaultCheckPeriod // cap at 10 minutes
-		}
-		log.Printf("reconfigureTimer: last DNS resolution attempt failed, next DNS resolution attempt in %v", nextTick)
-		t.Reset(nextTick)
-		failedResolveAttempts++
-	}
-
 	notifyChan := make(chan ipn.Notify)
 	errChan := make(chan error)
 	go func() {
@@ -435,24 +399,10 @@ runLoop:
 				log.Fatalf("tailscaled left running state (now in state %q), exiting", *n.State)
 			}
 			if n.NetMap != nil {
-				addrs = n.NetMap.SelfNode.Addresses().AsSlice()
+				addrs := n.NetMap.SelfNode.Addresses().AsSlice()
 				newCurrentIPs := deephash.Hash(&addrs)
 				ipsHaveChanged := newCurrentIPs != currentIPs
 
-				// Store device ID in a Kubernetes Secret before
-				// setting up any routing rules. This ensures
-				// that, for containerboot instances that are
-				// Kubernetes operator proxies, the operator is
-				// able to retrieve the device ID from the
-				// Kubernetes Secret to clean up tailnet nodes
-				// for proxies whose route setup continuously
-				// fails.
-				deviceID := n.NetMap.SelfNode.StableID()
-				if hasKubeStateStore(cfg) && deephash.Update(&currentDeviceID, &deviceID) {
-					if err := storeDeviceID(ctx, cfg.KubeSecret, n.NetMap.SelfNode.StableID()); err != nil {
-						log.Fatalf("storing device ID in Kubernetes Secret: %v", err)
-					}
-				}
 				if cfg.TailnetTargetFQDN != "" {
 					var (
 						egressAddrs          []netip.Prefix
@@ -475,50 +425,29 @@ runLoop:
 					egressAddrs = node.Addresses().AsSlice()
 					newCurentEgressIPs = deephash.Hash(&egressAddrs)
 					egressIPsHaveChanged = newCurentEgressIPs != currentEgressIPs
-					if egressIPsHaveChanged && len(egressAddrs) != 0 {
-						var rulesInstalled bool
+					if egressIPsHaveChanged && len(egressAddrs) > 0 {
 						for _, egressAddr := range egressAddrs {
 							ea := egressAddr.Addr()
-							if ea.Is4() || (ea.Is6() && nfr.HasIPV6NAT()) {
-								rulesInstalled = true
-								log.Printf("Installing forwarding rules for destination %v", ea.String())
-								if err := installEgressForwardingRule(ctx, ea.String(), addrs, nfr); err != nil {
-									log.Fatalf("installing egress proxy rules for destination %s: %v", ea.String(), err)
-								}
+							// TODO (irbekrm): make it work for IPv6 too.
+							if ea.Is6() {
+								log.Println("Not installing egress forwarding rules for IPv6 as this is currently not supported")
+								continue
+							}
+							log.Printf("Installing forwarding rules for destination %v", ea.String())
+							if err := installEgressForwardingRule(ctx, ea.String(), addrs, nfr); err != nil {
+								log.Fatalf("installing egress proxy rules for destination %s: %v", ea.String(), err)
 							}
-						}
-						if !rulesInstalled {
-							log.Fatalf("no forwarding rules for egress addresses %v, host supports IPv6: %v", egressAddrs, nfr.HasIPV6NAT())
 						}
 					}
 					currentEgressIPs = newCurentEgressIPs
 				}
-				if cfg.ProxyTargetIP != "" && len(addrs) != 0 && ipsHaveChanged {
+				if cfg.ProxyTo != "" && len(addrs) > 0 && ipsHaveChanged {
 					log.Printf("Installing proxy rules")
-					if err := installIngressForwardingRule(ctx, cfg.ProxyTargetIP, addrs, nfr); err != nil {
+					if err := installIngressForwardingRule(ctx, cfg.ProxyTo, addrs, nfr); err != nil {
 						log.Fatalf("installing ingress proxy rules: %v", err)
 					}
 				}
-				if cfg.ProxyTargetDNSName != "" && len(addrs) != 0 && ipsHaveChanged {
-					newBackendAddrs, err := resolveDNS(ctx, cfg.ProxyTargetDNSName)
-					if err != nil {
-						log.Printf("[unexpected] error resolving DNS name %s: %v", cfg.ProxyTargetDNSName, err)
-						resetTimer(true)
-						continue
-					}
-					backendsHaveChanged := !(slices.EqualFunc(backendAddrs, newBackendAddrs, func(ip1 net.IP, ip2 net.IP) bool {
-						return slices.ContainsFunc(newBackendAddrs, func(ip net.IP) bool { return ip.Equal(ip1) })
-					}))
-					if backendsHaveChanged {
-						log.Printf("installing ingress proxy rules for backends %v", newBackendAddrs)
-						if err := installIngressForwardingRuleForDNSTarget(ctx, newBackendAddrs, addrs, nfr); err != nil {
-							log.Fatalf("error installing ingress proxy rules: %v", err)
-						}
-					}
-					resetTimer(false)
-					backendAddrs = newBackendAddrs
-				}
-				if cfg.ServeConfigPath != "" && len(n.NetMap.DNS.CertDomains) != 0 {
+				if cfg.ServeConfigPath != "" && len(n.NetMap.DNS.CertDomains) > 0 {
 					cd := n.NetMap.DNS.CertDomains[0]
 					prev := certDomain.Swap(ptr.To(cd))
 					if prev == nil || *prev != cd {
@@ -528,7 +457,7 @@ runLoop:
 						}
 					}
 				}
-				if cfg.TailnetTargetIP != "" && ipsHaveChanged && len(addrs) != 0 {
+				if cfg.TailnetTargetIP != "" && ipsHaveChanged && len(addrs) > 0 {
 					log.Printf("Installing forwarding rules for destination %v", cfg.TailnetTargetIP)
 					if err := installEgressForwardingRule(ctx, cfg.TailnetTargetIP, addrs, nfr); err != nil {
 						log.Fatalf("installing egress proxy rules: %v", err)
@@ -540,7 +469,7 @@ runLoop:
 				// enabled, set up proxy rule each time the
 				// tailnet IPs of this node change (including
 				// the first time they become available).
-				if cfg.AllowProxyingClusterTrafficViaIngress && cfg.ServeConfigPath != "" && ipsHaveChanged && len(addrs) != 0 {
+				if cfg.AllowProxyingClusterTrafficViaIngress && cfg.ServeConfigPath != "" && ipsHaveChanged && len(addrs) > 0 {
 					log.Printf("installing rules to forward traffic for %s to node's tailnet IP", cfg.PodIP)
 					if err := installTSForwardingRuleForDestination(ctx, cfg.PodIP, addrs, nfr); err != nil {
 						log.Fatalf("installing rules to forward traffic to node's tailnet IP: %v", err)
@@ -548,85 +477,46 @@ runLoop:
 				}
 				currentIPs = newCurrentIPs
 
-				// Only store device FQDN and IP addresses to
-				// Kubernetes Secret when any required proxy
-				// route setup has succeeded. IPs and FQDN are
-				// read from the Secret by the Tailscale
-				// Kubernetes operator and, for some proxy
-				// types, such as Tailscale Ingress, advertized
-				// on the Ingress status. Writing them to the
-				// Secret only after the proxy routing has been
-				// set up ensures that the operator does not
-				// advertize endpoints of broken proxies.
-				// TODO (irbekrm): instead of using the IP and FQDN, have some other mechanism for the proxy signal that it is 'Ready'.
-				deviceEndpoints := []any{n.NetMap.SelfNode.Name(), n.NetMap.SelfNode.Addresses()}
-				if hasKubeStateStore(cfg) && deephash.Update(&currentDeviceEndpoints, &deviceEndpoints) {
-					if err := storeDeviceEndpoints(ctx, cfg.KubeSecret, n.NetMap.SelfNode.Name(), n.NetMap.SelfNode.Addresses().AsSlice()); err != nil {
-						log.Fatalf("storing device IPs and FQDN in Kubernetes Secret: %v", err)
+				deviceInfo := []any{n.NetMap.SelfNode.StableID(), n.NetMap.SelfNode.Name()}
+				if cfg.InKubernetes && cfg.KubernetesCanPatch && cfg.KubeSecret != "" && deephash.Update(&currentDeviceInfo, &deviceInfo) {
+					if err := storeDeviceInfo(ctx, cfg.KubeSecret, n.NetMap.SelfNode.StableID(), n.NetMap.SelfNode.Name(), n.NetMap.SelfNode.Addresses().AsSlice()); err != nil {
+						log.Fatalf("storing device ID in kube secret: %v", err)
 					}
 				}
 			}
 			if !startupTasksDone {
-				// For containerboot instances that act as TCP
-				// proxies (proxying traffic to an endpoint
-				// passed via one of the env vars that
-				// containerbot reads) and store state in a
-				// Kubernetes Secret, we consider startup tasks
-				// done at the point when device info has been
-				// successfully stored to state Secret.
-				// For all other containerboot instances, if we
-				// just get to this point the startup tasks can
-				// be considered done.
-				if !isL3Proxy(cfg) || !hasKubeStateStore(cfg) || (currentDeviceEndpoints != deephash.Sum{} && currentDeviceID != deephash.Sum{}) {
+				if (!wantProxy || currentIPs != deephash.Sum{}) && (!wantDeviceInfo || currentDeviceInfo != deephash.Sum{}) {
 					// This log message is used in tests to detect when all
 					// post-auth configuration is done.
 					log.Println("Startup complete, waiting for shutdown signal")
 					startupTasksDone = true
 
-					// Wait on tailscaled process. It won't
-					// be cleaned up by default when the
-					// container exits as it is not PID1.
-					// TODO (irbekrm): perhaps we can
-					// replace the reaper by a running
-					// cmd.Wait in a goroutine immediately
-					// after starting tailscaled?
+					// Reap all processes, since we are PID1 and need to collect zombies. We can
+					// only start doing this once we've stopped shelling out to things
+					// `tailscale up`, otherwise this goroutine can reap the CLI subprocesses
+					// and wedge bringup.
 					reaper := func() {
 						defer wg.Done()
 						for {
 							var status unix.WaitStatus
-							_, err := unix.Wait4(daemonProcess.Pid, &status, 0, nil)
+							pid, err := unix.Wait4(-1, &status, 0, nil)
 							if errors.Is(err, unix.EINTR) {
 								continue
 							}
 							if err != nil {
-								log.Fatalf("Waiting for tailscaled to exit: %v", err)
+								log.Fatalf("Waiting for exited processes: %v", err)
+							}
+							if pid == daemonProcess.Pid {
+								log.Printf("Tailscaled exited")
+								os.Exit(0)
 							}
-							log.Print("tailscaled exited")
-							os.Exit(0)
 						}
+
 					}
 					wg.Add(1)
 					go reaper()
 				}
 			}
-		case <-tc:
-			newBackendAddrs, err := resolveDNS(ctx, cfg.ProxyTargetDNSName)
-			if err != nil {
-				log.Printf("[unexpected] error resolving DNS name %s: %v", cfg.ProxyTargetDNSName, err)
-				resetTimer(true)
-				continue
-			}
-			backendsHaveChanged := !(slices.EqualFunc(backendAddrs, newBackendAddrs, func(ip1 net.IP, ip2 net.IP) bool {
-				return slices.ContainsFunc(newBackendAddrs, func(ip net.IP) bool { return ip.Equal(ip1) })
-			}))
-			if backendsHaveChanged && len(addrs) != 0 {
-				log.Printf("Backend address change detected, installing proxy rules for backends %v", newBackendAddrs)
-				if err := installIngressForwardingRuleForDNSTarget(ctx, newBackendAddrs, addrs, nfr); err != nil {
-					log.Fatalf("installing ingress proxy rules for DNS target %s: %v", cfg.ProxyTargetDNSName, err)
-				}
-			}
-			backendAddrs = newBackendAddrs
-			resetTimer(false)
 		}
 	}
 	wg.Wait()
@@ -867,12 +757,12 @@ func ensureTunFile(root string) error {
 }
 
 // ensureIPForwarding enables IPv4/IPv6 forwarding for the container.
-func ensureIPForwarding(root, clusterProxyTargetIP, tailnetTargetIP, tailnetTargetFQDN string, routes *string) error {
+func ensureIPForwarding(root, clusterProxyTarget, tailnetTargetiP, tailnetTargetFQDN string, routes *string) error {
 	var (
 		v4Forwarding, v6Forwarding bool
 	)
-	if clusterProxyTargetIP != "" {
-		proxyIP, err := netip.ParseAddr(clusterProxyTargetIP)
+	if clusterProxyTarget != "" {
+		proxyIP, err := netip.ParseAddr(clusterProxyTarget)
 		if err != nil {
 			return fmt.Errorf("invalid cluster destination IP: %v", err)
 		}
@@ -882,8 +772,8 @@ func ensureIPForwarding(root, clusterProxyTargetIP, tailnetTargetIP, tailnetTarg
 			v6Forwarding = true
 		}
 	}
-	if tailnetTargetIP != "" {
-		proxyIP, err := netip.ParseAddr(tailnetTargetIP)
+	if tailnetTargetiP != "" {
+		proxyIP, err := netip.ParseAddr(tailnetTargetiP)
 		if err != nil {
 			return fmt.Errorf("invalid tailnet destination IP: %v", err)
 		}
@@ -911,10 +801,7 @@ func ensureIPForwarding(root, clusterProxyTargetIP, tailnetTargetIP, tailnetTarg
 			}
 		}
 	}
-	return enableIPForwarding(v4Forwarding, v6Forwarding, root)
-}
 
-func enableIPForwarding(v4Forwarding, v6Forwarding bool, root string) error {
 	var paths []string
 	if v4Forwarding {
 		paths = append(paths, filepath.Join(root, "proc/sys/net/ipv4/ip_forward"))
@@ -943,7 +830,7 @@ func enableIPForwarding(v4Forwarding, v6Forwarding bool, root string) error {
 	return nil
 }
 
-func installEgressForwardingRule(_ context.Context, dstStr string, tsIPs []netip.Prefix, nfr linuxfw.NetfilterRunner) error {
+func installEgressForwardingRule(ctx context.Context, dstStr string, tsIPs []netip.Prefix, nfr linuxfw.NetfilterRunner) error {
 	dst, err := netip.ParseAddr(dstStr)
 	if err != nil {
 		return err
@@ -1009,23 +896,16 @@ func installIngressForwardingRule(ctx context.Context, dstStr string, tsIPs []ne
 		return err
 	}
 	var local netip.Addr
-	proxyHasIPv4Address := false
 	for _, pfx := range tsIPs {
 		if !pfx.IsSingleIP() {
 			continue
 		}
-		if pfx.Addr().Is4() {
-			proxyHasIPv4Address = true
-		}
 		if pfx.Addr().Is4() != dst.Is4() {
 			continue
 		}
 		local = pfx.Addr()
 		break
 	}
-	if proxyHasIPv4Address && dst.Is6() {
-		log.Printf("Warning: proxy backend ClusterIP is an IPv6 address and the proxy has a IPv4 tailnet address. You might need to disable IPv4 address allocation for the proxy for forwarding to work. See https://github.com/tailscale/tailscale/issues/12156")
-	}
 	if !local.IsValid() {
 		return fmt.Errorf("no tailscale IP matching family of %s found in %v", dstStr, tsIPs)
 	}
@@ -1038,89 +918,15 @@ func installIngressForwardingRule(ctx context.Context, dstStr string, tsIPs []ne
 	return nil
 }
 
-func installIngressForwardingRuleForDNSTarget(ctx context.Context, backendAddrs []net.IP, tsIPs []netip.Prefix, nfr linuxfw.NetfilterRunner) error {
-	var (
-		tsv4       netip.Addr
-		tsv6       netip.Addr
-		v4Backends []netip.Addr
-		v6Backends []netip.Addr
-	)
-	for _, pfx := range tsIPs {
-		if pfx.IsSingleIP() && pfx.Addr().Is4() {
-			tsv4 = pfx.Addr()
-			continue
-		}
-		if pfx.IsSingleIP() && pfx.Addr().Is6() {
-			tsv6 = pfx.Addr()
-			continue
-		}
-	}
-	// TODO: log if more than one backend address is found and firewall is
-	// in nftables mode that only the first IP will be used.
-	for _, ip := range backendAddrs {
-		if ip.To4() != nil {
-			v4Backends = append(v4Backends, netip.AddrFrom4([4]byte(ip.To4())))
-		}
-		if ip.To16() != nil {
-			v6Backends = append(v6Backends, netip.AddrFrom16([16]byte(ip.To16())))
-		}
-	}
-
-	// Enable IP forwarding here as opposed to at the start of containerboot
-	// as the IPv4/IPv6 requirements might have changed.
-	// For Kubernetes operator proxies, forwarding for both IPv4 and IPv6 is
-	// enabled by an init container, so in practice enabling forwarding here
-	// is only needed if this proxy has been configured by manually setting
-	// TS_EXPERIMENTAL_DEST_DNS_NAME env var for a containerboot instance.
-	if err := enableIPForwarding(len(v4Backends) != 0, len(v6Backends) != 0, ""); err != nil {
-		log.Printf("[unexpected] failed to ensure IP forwarding: %v", err)
-	}
-
-	updateFirewall := func(dst netip.Addr, backendTargets []netip.Addr) error {
-		if err := nfr.DNATWithLoadBalancer(dst, backendTargets); err != nil {
-			return fmt.Errorf("installing DNAT rules for ingress backends %+#v: %w", backendTargets, err)
-		}
-		// The backend might advertize MSS higher than that of the
-		// tailscale interfaces. Clamp MSS of packets going out via
-		// tailscale0 interface to its MTU to prevent broken connections
-		// in environments where path MTU discovery is not working.
-		if err := nfr.ClampMSSToPMTU("tailscale0", dst); err != nil {
-			return fmt.Errorf("adding rule to clamp traffic via tailscale0: %v", err)
-		}
-		return nil
-	}
-
-	if len(v4Backends) != 0 {
-		if !tsv4.IsValid() {
-			log.Printf("backend targets %v contain at least one IPv4 address, but this node's Tailscale IPs do not contain a valid IPv4 address: %v", backendAddrs, tsIPs)
-		} else if err := updateFirewall(tsv4, v4Backends); err != nil {
-			return fmt.Errorf("Installing IPv4 firewall rules: %w", err)
-		}
-	}
-	if len(v6Backends) != 0 && !tsv6.IsValid() {
-		if !tsv6.IsValid() {
-			log.Printf("backend targets %v contain at least one IPv6 address, but this node's Tailscale IPs do not contain a valid IPv6 address: %v", backendAddrs, tsIPs)
-		} else if !nfr.HasIPV6NAT() {
-			log.Printf("backend targets %v contain at least one IPv6 address, but the chosen firewall mode does not support IPv6 NAT", backendAddrs)
-		} else if err := updateFirewall(tsv6, v6Backends); err != nil {
-			return fmt.Errorf("Installing IPv6 firewall rules: %w", err)
-		}
-	}
-	return nil
-}
-
 // settings is all the configuration for containerboot.
 type settings struct {
 	AuthKey  string
 	Hostname string
 	Routes   *string
-	// ProxyTargetIP is the destination IP to which all incoming
+	// ProxyTo is the destination IP to which all incoming
 	// Tailscale traffic should be proxied. If empty, no proxying
 	// is done. This is typically a locally reachable IP.
-	ProxyTargetIP string
-	// ProxyTargetDNSName is a DNS name to whose backing IP addresses all
-	// incoming Tailscale traffic should be proxied.
-	ProxyTargetDNSName string
+	ProxyTo string
 	// TailnetTargetIP is the destination IP to which all incoming
 	// non-Tailscale traffic should be proxied. This is typically a
 	// Tailscale IP.
@@ -1128,23 +934,22 @@ type settings struct {
 	// TailnetTargetFQDN is an MagicDNS name to which all incoming
 	// non-Tailscale traffic should be proxied. This must be a full Tailnet
 	// node FQDN.
-	TailnetTargetFQDN             string
-	ServeConfigPath               string
-	DaemonExtraArgs               string
-	ExtraArgs                     string
-	InKubernetes                  bool
-	UserspaceMode                 bool
-	StateDir                      string
-	AcceptDNS                     *bool
-	KubeSecret                    string
-	SOCKSProxyAddr                string
-	HTTPProxyAddr                 string
-	Socket                        string
-	AuthOnce                      bool
-	Root                          string
-	KubernetesCanPatch            bool
-	TailscaledConfigFilePath      string
-	EnableForwardingOptimizations bool
+	TailnetTargetFQDN        string
+	ServeConfigPath          string
+	DaemonExtraArgs          string
+	ExtraArgs                string
+	InKubernetes             bool
+	UserspaceMode            bool
+	StateDir                 string
+	AcceptDNS                *bool
+	KubeSecret               string
+	SOCKSProxyAddr           string
+	HTTPProxyAddr            string
+	Socket                   string
+	AuthOnce                 bool
+	Root                     string
+	KubernetesCanPatch       bool
+	TailscaledConfigFilePath string
 	// If set to true and, if this containerboot instance is a Kubernetes
 	// ingress proxy, set up rules to forward incoming cluster traffic to be
 	// forwarded to the ingress target in cluster.
@@ -1157,26 +962,13 @@ type settings struct {
 
 func (s *settings) validate() error {
 	if s.TailscaledConfigFilePath != "" {
-		dir, file := path.Split(s.TailscaledConfigFilePath)
-		if _, err := os.Stat(dir); err != nil {
-			return fmt.Errorf("error validating whether directory with tailscaled config file %s exists: %w", dir, err)
-		}
-		if _, err := os.Stat(s.TailscaledConfigFilePath); err != nil {
-			return fmt.Errorf("error validating whether tailscaled config directory %q contains tailscaled config for current capability version %q: %w. If this is a Tailscale Kubernetes operator proxy, please ensure that the version of the operator is not older than the version of the proxy", dir, file, err)
-		}
 		if _, err := conffile.Load(s.TailscaledConfigFilePath); err != nil {
 			return fmt.Errorf("error validating tailscaled configfile contents: %w", err)
 		}
 	}
-	if s.ProxyTargetIP != "" && s.UserspaceMode {
+	if s.ProxyTo != "" && s.UserspaceMode {
 		return errors.New("TS_DEST_IP is not supported with TS_USERSPACE")
 	}
-	if s.ProxyTargetDNSName != "" && s.UserspaceMode {
-		return errors.New("TS_EXPERIMENTAL_DEST_DNS_NAME is not supported with TS_USERSPACE")
-	}
-	if s.ProxyTargetDNSName != "" && s.ProxyTargetIP != "" {
-		return errors.New("TS_EXPERIMENTAL_DEST_DNS_NAME and TS_DEST_IP cannot both be set")
-	}
 	if s.TailnetTargetIP != "" && s.UserspaceMode {
 		return errors.New("TS_TAILNET_TARGET_IP is not supported with TS_USERSPACE")
 	}
@@ -1187,7 +979,7 @@ func (s *settings) validate() error {
 		return errors.New("Both TS_TAILNET_TARGET_IP and TS_TAILNET_FQDN cannot be set")
 	}
 	if s.TailscaledConfigFilePath != "" && (s.AcceptDNS != nil || s.AuthKey != "" || s.Routes != nil || s.ExtraArgs != "" || s.Hostname != "") {
-		return errors.New("TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR cannot be set in combination with TS_HOSTNAME, TS_EXTRA_ARGS, TS_AUTHKEY, TS_ROUTES, TS_ACCEPT_DNS.")
+		return errors.New("EXPERIMENTAL_TS_CONFIGFILE_PATH cannot be set in combination with TS_HOSTNAME, TS_EXTRA_ARGS, TS_AUTHKEY, TS_ROUTES, TS_ACCEPT_DNS.")
 	}
 	if s.AllowProxyingClusterTrafficViaIngress && s.UserspaceMode {
 		return errors.New("EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS is not supported in userspace mode")
@@ -1198,34 +990,9 @@ func (s *settings) validate() error {
 	if s.AllowProxyingClusterTrafficViaIngress && s.PodIP == "" {
 		return errors.New("EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS is set but POD_IP is not set")
 	}
-	if s.EnableForwardingOptimizations && s.UserspaceMode {
-		return errors.New("TS_EXPERIMENTAL_ENABLE_FORWARDING_OPTIMIZATIONS is not supported in userspace mode")
-	}
 	return nil
 }
 
-func resolveDNS(ctx context.Context, name string) ([]net.IP, error) {
-	// TODO (irbekrm): look at using recursive.Resolver instead to resolve
-	// the DNS names as well as retrieve TTLs. It looks though that this
-	// seems to return very short TTLs (shorter than on the actual records).
-	ip4s, err := net.DefaultResolver.LookupIP(ctx, "ip4", name)
-	if err != nil {
-		if e, ok := err.(*net.DNSError); !(ok && e.IsNotFound) {
-			return nil, fmt.Errorf("error looking up IPv4 addresses: %v", err)
-		}
-	}
-	ip6s, err := net.DefaultResolver.LookupIP(ctx, "ip6", name)
-	if err != nil {
-		if e, ok := err.(*net.DNSError); !(ok && e.IsNotFound) {
-			return nil, fmt.Errorf("error looking up IPv6 addresses: %v", err)
-		}
-	}
-	if len(ip4s) == 0 && len(ip6s) == 0 {
-		return nil, fmt.Errorf("no IPv4 or IPv6 addresses found for host: %s", name)
-	}
-	return append(ip4s, ip6s...), nil
-}
-
 // defaultEnv returns the value of the given envvar name, or defVal if
 // unset.
 func defaultEnv(name, defVal string) string {
@@ -1322,55 +1089,3 @@ func isTwoStepConfigAlwaysAuth(cfg *settings) bool {
 func isOneStepConfig(cfg *settings) bool {
 	return cfg.TailscaledConfigFilePath != ""
 }
-
-// isL3Proxy returns true if the Tailscale node needs to be configured to act
-// as an L3 proxy, proxying to an endpoint provided via one of the config env
-// vars.
-func isL3Proxy(cfg *settings) bool {
-	return cfg.ProxyTargetIP != "" || cfg.ProxyTargetDNSName != "" || cfg.TailnetTargetIP != "" || cfg.TailnetTargetFQDN != "" || cfg.AllowProxyingClusterTrafficViaIngress
-}
-
-// hasKubeStateStore returns true if the state must be stored in a Kubernetes
-// Secret.
-func hasKubeStateStore(cfg *settings) bool {
-	return cfg.InKubernetes && cfg.KubernetesCanPatch && cfg.KubeSecret != ""
-}
-
-// tailscaledConfigFilePath returns the path to the tailscaled config file that
-// should be used for the current capability version. It is determined by the
-// TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR environment variable and looks for a
-// file named cap-<capability_version>.hujson in the directory. It searches for
-// the highest capability version that is less than or equal to the current
-// capability version.
-func tailscaledConfigFilePath() string {
-	dir := os.Getenv("TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR")
-	if dir == "" {
-		return ""
-	}
-	fe, err := os.ReadDir(dir)
-	if err != nil {
-		log.Fatalf("error reading tailscaled config directory %q: %v", dir, err)
-	}
-	maxCompatVer := tailcfg.CapabilityVersion(-1)
-	for _, e := range fe {
-		// We don't check if type if file as in most cases this will
-		// come from a mounted kube Secret, where the directory contents
-		// will be various symlinks.
-		if e.Type().IsDir() {
-			continue
-		}
-		cv, err := kubeutils.CapVerFromFileName(e.Name())
-		if err != nil {
-			log.Printf("skipping file %q in tailscaled config directory %q: %v", e.Name(), dir, err)
-			continue
-		}
-		if cv > maxCompatVer && cv <= tailcfg.CurrentCapabilityVersion {
-			maxCompatVer = cv
-		}
-	}
-	if maxCompatVer == -1 {
-		log.Fatalf("no tailscaled config file found in %q for current capability version %q", dir, tailcfg.CurrentCapabilityVersion)
-	}
-	log.Printf("Using tailscaled config file %q for capability version %q", maxCompatVer, tailcfg.CurrentCapabilityVersion)
-	return path.Join(dir, kubeutils.TailscaledConfigFileNameForCap(maxCompatVer))
-}

cmd/containerboot/main_test.go

@@ -52,7 +52,7 @@ func TestContainerBoot(t *testing.T) {
 	}
 	defer kube.Close()
 
-	tailscaledConf := &ipn.ConfigVAlpha{AuthKey: ptr.To("foo"), Version: "alpha0"}
+	tailscaledConf := &ipn.ConfigVAlpha{AuthKey: func(s string) *string { return &s }("foo"), Version: "alpha0"}
 	tailscaledConfBytes, err := json.Marshal(tailscaledConf)
 	if err != nil {
 		t.Fatalf("error unmarshaling tailscaled config: %v", err)
@@ -65,7 +65,7 @@ func TestContainerBoot(t *testing.T) {
 		"dev/net",
 		"proc/sys/net/ipv4",
 		"proc/sys/net/ipv6/conf/all",
-		"etc/tailscaled",
+		"etc",
 	}
 	for _, path := range dirs {
 		if err := os.MkdirAll(filepath.Join(d, path), 0700); err != nil {
@@ -80,7 +80,7 @@ func TestContainerBoot(t *testing.T) {
 		"dev/net/tun":                           []byte(""),
 		"proc/sys/net/ipv4/ip_forward":          []byte("0"),
 		"proc/sys/net/ipv6/conf/all/forwarding": []byte("0"),
-		"etc/tailscaled/cap-95.hujson":          tailscaledConfBytes,
+		"etc/tailscaled":                        tailscaledConfBytes,
 	}
 	resetFiles := func() {
 		for path, content := range files {
@@ -116,9 +116,6 @@ func TestContainerBoot(t *testing.T) {
 		// WantFiles files that should exist in the container and their
 		// contents.
 		WantFiles map[string]string
-		// WantFatalLog is the fatal log message we expect from containerboot.
-		// If set for a phase, the test will finish on that phase.
-		WantFatalLog string
 	}
 	runningNotify := &ipn.Notify{
 		State: ptr.To(ipn.Running),
@@ -352,57 +349,12 @@ func TestContainerBoot(t *testing.T) {
 						"/usr/bin/tailscaled --socket=/tmp/tailscaled.sock --state=mem: --statedir=/tmp",
 						"/usr/bin/tailscale --socket=/tmp/tailscaled.sock up --accept-dns=false --authkey=tskey-key",
 					},
-					WantFiles: map[string]string{
-						"proc/sys/net/ipv4/ip_forward":          "1",
-						"proc/sys/net/ipv6/conf/all/forwarding": "0",
-					},
 				},
 				{
 					Notify: runningNotify,
 				},
 			},
 		},
-		{
-			Name: "egress_proxy_fqdn_ipv6_target_on_ipv4_host",
-			Env: map[string]string{
-				"TS_AUTHKEY":               "tskey-key",
-				"TS_TAILNET_TARGET_FQDN":   "ipv6-node.test.ts.net", // resolves to IPv6 address
-				"TS_USERSPACE":             "false",
-				"TS_TEST_FAKE_NETFILTER_6": "false",
-			},
-			Phases: []phase{
-				{
-					WantCmds: []string{
-						"/usr/bin/tailscaled --socket=/tmp/tailscaled.sock --state=mem: --statedir=/tmp",
-						"/usr/bin/tailscale --socket=/tmp/tailscaled.sock up --accept-dns=false --authkey=tskey-key",
-					},
-					WantFiles: map[string]string{
-						"proc/sys/net/ipv4/ip_forward":          "1",
-						"proc/sys/net/ipv6/conf/all/forwarding": "0",
-					},
-				},
-				{
-					Notify: &ipn.Notify{
-						State: ptr.To(ipn.Running),
-						NetMap: &netmap.NetworkMap{
-							SelfNode: (&tailcfg.Node{
-								StableID:  tailcfg.StableNodeID("myID"),
-								Name:      "test-node.test.ts.net",
-								Addresses: []netip.Prefix{netip.MustParsePrefix("100.64.0.1/32")},
-							}).View(),
-							Peers: []tailcfg.NodeView{
-								(&tailcfg.Node{
-									StableID:  tailcfg.StableNodeID("ipv6ID"),
-									Name:      "ipv6-node.test.ts.net",
-									Addresses: []netip.Prefix{netip.MustParsePrefix("::1/128")},
-								}).View(),
-							},
-						},
-					},
-					WantFatalLog: "no forwarding rules for egress addresses [::1/128], host supports IPv6: false",
-				},
-			},
-		},
 		{
 			Name: "authkey_once",
 			Env: map[string]string{
@@ -686,14 +638,14 @@ func TestContainerBoot(t *testing.T) {
 			},
 		},
 		{
-			Name: "experimental tailscaled config path",
+			Name: "experimental tailscaled configfile",
 			Env: map[string]string{
-				"TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR": filepath.Join(d, "etc/tailscaled/"),
+				"EXPERIMENTAL_TS_CONFIGFILE_PATH": filepath.Join(d, "etc/tailscaled"),
 			},
 			Phases: []phase{
 				{
 					WantCmds: []string{
-						"/usr/bin/tailscaled --socket=/tmp/tailscaled.sock --state=mem: --statedir=/tmp --tun=userspace-networking --config=/etc/tailscaled/cap-95.hujson",
+						"/usr/bin/tailscaled --socket=/tmp/tailscaled.sock --state=mem: --statedir=/tmp --tun=userspace-networking --config=/etc/tailscaled",
 					},
 				}, {
 					Notify: runningNotify,
@@ -745,25 +697,6 @@ func TestContainerBoot(t *testing.T) {
 			var wantCmds []string
 			for i, p := range test.Phases {
 				lapi.Notify(p.Notify)
-				if p.WantFatalLog != "" {
-					err := tstest.WaitFor(2*time.Second, func() error {
-						state, err := cmd.Process.Wait()
-						if err != nil {
-							return err
-						}
-						if state.ExitCode() != 1 {
-							return fmt.Errorf("process exited with code %d but wanted %d", state.ExitCode(), 1)
-						}
-						waitLogLine(t, time.Second, cbOut, p.WantFatalLog)
-						return nil
-					})
-					if err != nil {
-						t.Fatal(err)
-					}
-
-					// Early test return, we don't expect the successful startup log message.
-					return
-				}
 				wantCmds = append(wantCmds, p.WantCmds...)
 				waitArgs(t, 2*time.Second, d, argFile, strings.Join(wantCmds, "\n"))
 				err := tstest.WaitFor(2*time.Second, func() error {

cmd/derper/README.md

@@ -1,109 +0,0 @@
-# DERP
-
-This is the code for the [Tailscale DERP server](https://tailscale.com/kb/1232/derp-servers).
-
-In general, you should not need to or want to run this code. The overwhelming
-majority of Tailscale users (both individuals and companies) do not.
-
-In the happy path, Tailscale establishes direct connections between peers and
-data plane traffic flows directly between them, without using DERP for more than
-acting as a low bandwidth side channel to bootstrap the NAT traversal. If you
-find yourself wanting DERP for more bandwidth, the real problem is usually the
-network configuration of your Tailscale node(s), making sure that Tailscale can
-get direction connections via some mechanism.
-
-If you've decided or been advised to run your own `derper`, then read on.
-
-## Caveats
-
-* Node sharing and other cross-Tailnet features don't work when using custom
-  DERP servers.
-
-* DERP servers only see encrypted WireGuard packets and thus are not useful for
-  network-level debugging.
-
-* The Tailscale control plane does certain geo-level steering features and
-  optimizations that are not available when using custom DERP servers.
-
-## Guide to running `cmd/derper`
-
-* You must build and update the `cmd/derper` binary yourself. There are no
-  packages. Use `go install tailscale.com/cmd/derper@latest` with the latest
-  version of Go. You should update this binary approximately as regularly as
-  you update Tailscale nodes. If using `--verify-clients`, the `derper` binary
-  and `tailscaled` binary on the machine must be built from the same git revision.
-  (It might work otherwise, but they're developed and only tested together.)
-
-* The DERP protocol does a protocol switch inside TLS from HTTP to a custom
-  bidirectional binary protocol. It is thus incompatible with many HTTP proxies.
-  Do not put `derper` behind another HTTP proxy.
-
-* The `tailscaled` client does its own selection of the fastest/nearest DERP
-  server based on latency measurements. Do not put `derper` behind a global load
-  balancer.
-
-* DERP servers should ideally have both a static IPv4 and static IPv6 address.
-Both of those should be listed in the DERP map so the client doesn't need to
-rely on its DNS which might be broken and dependent on DERP to get back up.
-
-* A DERP server should not share an IP address with any other DERP server.
-
-* Avoid having multiple DERP nodes in a region. If you must, they all need to be
-  meshed with each other and monitored. Having two one-node "regions" in the
-  same datacenter is usually easier and more reliable than meshing, at the cost
-  of more required connections from clients in some cases. If your clients
-  aren't mobile (battery constrained), one node regions are definitely
-  preferred. If you really need multiple nodes in a region for HA reasons, two
-  is sufficient.
-
-* Monitor your DERP servers with [`cmd/derpprobe`](../derpprobe/).
-
-* If using `--verify-clients`, a `tailscaled` must be running alongside the
-  `derper`, and all clients must be visible to the derper tailscaled in the ACL.
-
-* If using `--verify-clients`, a `tailscaled` must also be running alongside
-  your `derpprobe`, and `derpprobe` needs to use `--derp-map=local`.
-
-* The firewall on the `derper` should permit TCP ports 80 and 443 and UDP port
-  3478.
-
-* Only LetsEncrypt certs are rotated automatically. Other cert updates require a
-  restart.
-
-* Don't use a firewall in front of `derper` that suppresses `RST`s upon
-  receiving traffic to a dead or unknown connection.
-
-* Don't rate-limit UDP STUN packets.
-
-* Don't rate-limit outbound TCP traffic (only inbound).
-
-## Diagnostics
-
-This is not a complete guide on DERP diagnostics.
-
-Running your own DERP services requires exeprtise in multi-layer network and
-application diagnostics. As the DERP runs multiple protocols at multiple layers
-and is not a regular HTTP(s) server you will need expertise in correlative
-analysis to diagnose the most tricky problems. There is no "plain text" or
-"open" mode of operation for DERP.
-
-* The debug handler is accessible at URL path `/debug/`. It is only accessible
-  over localhost or from a Tailscale IP address.
-
-* Go pprof can be accessed via the debug handler at `/debug/pprof/`
-
-* Prometheus compatible metrics can be gathered from the debug handler at
-  `/debug/varz`.
-
-* `cmd/stunc` in the Tailscale repository provides a basic tool for diagnosing
-  issues with STUN.
-
-* `cmd/derpprobe` provides a service for monitoring DERP cluster health.
-
-* `tailscale debug derp` and `tailscale netcheck` provide additional client
-  driven diagnostic information for DERP communications.
-
-* Tailscale logs may provide insight for certain problems, such as if DERPs are
-  unreachable or peers are regularly not reachable in their DERP home regions.
-  There are many possible misconfiguration causes for these problems, but
-  regular log entries are a good first indicator that there is a problem.

cmd/derper/bootstrap_dns.go

@@ -5,45 +5,35 @@ package main
 
 import (
 	"context"
-	"encoding/binary"
 	"encoding/json"
 	"expvar"
 	"log"
-	"math/rand/v2"
 	"net"
 	"net/http"
-	"net/netip"
-	"strconv"
 	"strings"
-	"sync/atomic"
 	"time"
 
 	"tailscale.com/syncs"
-	"tailscale.com/util/mak"
 	"tailscale.com/util/slicesx"
 )
 
 const refreshTimeout = time.Minute
 
-type dnsEntryMap struct {
-	IPs     map[string][]net.IP
-	Percent map[string]float64 // "foo.com" => 0.5 for 50%
-}
+type dnsEntryMap map[string][]net.IP
 
 var (
-	dnsCache            atomic.Pointer[dnsEntryMap]
+	dnsCache            syncs.AtomicValue[dnsEntryMap]
 	dnsCacheBytes       syncs.AtomicValue[[]byte] // of JSON
-	unpublishedDNSCache atomic.Pointer[dnsEntryMap]
+	unpublishedDNSCache syncs.AtomicValue[dnsEntryMap]
 	bootstrapLookupMap  syncs.Map[string, bool]
 )
 
 var (
-	bootstrapDNSRequests        = expvar.NewInt("counter_bootstrap_dns_requests")
-	publishedDNSHits            = expvar.NewInt("counter_bootstrap_dns_published_hits")
-	publishedDNSMisses          = expvar.NewInt("counter_bootstrap_dns_published_misses")
-	unpublishedDNSHits          = expvar.NewInt("counter_bootstrap_dns_unpublished_hits")
-	unpublishedDNSMisses        = expvar.NewInt("counter_bootstrap_dns_unpublished_misses")
-	unpublishedDNSPercentMisses = expvar.NewInt("counter_bootstrap_dns_unpublished_percent_misses")
+	bootstrapDNSRequests = expvar.NewInt("counter_bootstrap_dns_requests")
+	publishedDNSHits     = expvar.NewInt("counter_bootstrap_dns_published_hits")
+	publishedDNSMisses   = expvar.NewInt("counter_bootstrap_dns_published_misses")
+	unpublishedDNSHits   = expvar.NewInt("counter_bootstrap_dns_unpublished_hits")
+	unpublishedDNSMisses = expvar.NewInt("counter_bootstrap_dns_unpublished_misses")
 )
 
 func init() {
@@ -69,13 +59,15 @@ func refreshBootstrapDNS() {
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), refreshTimeout)
 	defer cancel()
-	dnsEntries := resolveList(ctx, *bootstrapDNS)
+	dnsEntries := resolveList(ctx, strings.Split(*bootstrapDNS, ","))
 	// Randomize the order of the IPs for each name to avoid the client biasing
 	// to IPv6
-	for _, vv := range dnsEntries.IPs {
-		slicesx.Shuffle(vv)
+	for k := range dnsEntries {
+		ips := dnsEntries[k]
+		slicesx.Shuffle(ips)
+		dnsEntries[k] = ips
 	}
-	j, err := json.MarshalIndent(dnsEntries.IPs, "", "\t")
+	j, err := json.MarshalIndent(dnsEntries, "", "\t")
 	if err != nil {
 		// leave the old values in place
 		return
@@ -89,50 +81,27 @@ func refreshUnpublishedDNS() {
 	if *unpublishedDNS == "" {
 		return
 	}
+
 	ctx, cancel := context.WithTimeout(context.Background(), refreshTimeout)
 	defer cancel()
-	dnsEntries := resolveList(ctx, *unpublishedDNS)
+
+	dnsEntries := resolveList(ctx, strings.Split(*unpublishedDNS, ","))
 	unpublishedDNSCache.Store(dnsEntries)
 }
 
-// resolveList takes a comma-separated list of DNS names to resolve.
-//
-// If an entry contains a slash, it's two DNS names: the first is the one to
-// resolve and the second is that of a TXT recording containing the rollout
-// percentage in range "0".."100". If the TXT record doesn't exist or is
-// malformed, the percentage is 0. If the TXT record is not provided (there's no
-// slash), then the percentage is 100.
-func resolveList(ctx context.Context, list string) *dnsEntryMap {
-	ents := strings.Split(list, ",")
-
-	ret := &dnsEntryMap{}
+func resolveList(ctx context.Context, names []string) dnsEntryMap {
+	dnsEntries := make(dnsEntryMap)
 
 	var r net.Resolver
-	for _, ent := range ents {
-		name, txtName, _ := strings.Cut(ent, "/")
+	for _, name := range names {
 		addrs, err := r.LookupIP(ctx, "ip", name)
 		if err != nil {
 			log.Printf("bootstrap DNS lookup %q: %v", name, err)
 			continue
 		}
-		mak.Set(&ret.IPs, name, addrs)
-
-		if txtName == "" {
-			mak.Set(&ret.Percent, name, 1.0)
-			continue
-		}
-		vals, err := r.LookupTXT(ctx, txtName)
-		if err != nil {
-			log.Printf("bootstrap DNS lookup %q: %v", txtName, err)
-			continue
-		}
-		for _, v := range vals {
-			if v, err := strconv.Atoi(v); err == nil && v >= 0 && v <= 100 {
-				mak.Set(&ret.Percent, name, float64(v)/100)
-			}
-		}
+		dnsEntries[name] = addrs
 	}
-	return ret
+	return dnsEntries
 }
 
 func handleBootstrapDNS(w http.ResponseWriter, r *http.Request) {
@@ -146,36 +115,22 @@ func handleBootstrapDNS(w http.ResponseWriter, r *http.Request) {
 	// Try answering a query from our hidden map first
 	if q := r.URL.Query().Get("q"); q != "" {
 		bootstrapLookupMap.Store(q, true)
-		if bootstrapLookupMap.Len() > 500 { // defensive
-			bootstrapLookupMap.Clear()
-		}
-		if m := unpublishedDNSCache.Load(); m != nil && len(m.IPs[q]) > 0 {
+		if ips, ok := unpublishedDNSCache.Load()[q]; ok && len(ips) > 0 {
 			unpublishedDNSHits.Add(1)
 
-			percent := m.Percent[q]
-			if remoteAddrMatchesPercent(r.RemoteAddr, percent) {
-				// Only return the specific query, not everything.
-				m := map[string][]net.IP{q: m.IPs[q]}
-				j, err := json.MarshalIndent(m, "", "\t")
-				if err == nil {
-					w.Write(j)
-					return
-				}
-			} else {
-				unpublishedDNSPercentMisses.Add(1)
+			// Only return the specific query, not everything.
+			m := dnsEntryMap{q: ips}
+			j, err := json.MarshalIndent(m, "", "\t")
+			if err == nil {
+				w.Write(j)
+				return
 			}
 		}
 
 		// If we have a "q" query for a name in the published cache
 		// list, then track whether that's a hit/miss.
-		m := dnsCache.Load()
-		var inPub bool
-		var ips []net.IP
-		if m != nil {
-			ips, inPub = m.IPs[q]
-		}
-		if inPub {
-			if len(ips) > 0 {
+		if m, ok := dnsCache.Load()[q]; ok {
+			if len(m) > 0 {
 				publishedDNSHits.Add(1)
 			} else {
 				publishedDNSMisses.Add(1)
@@ -191,29 +146,3 @@ func handleBootstrapDNS(w http.ResponseWriter, r *http.Request) {
 	j := dnsCacheBytes.Load()
 	w.Write(j)
 }
-
-// percent is [0.0, 1.0].
-func remoteAddrMatchesPercent(remoteAddr string, percent float64) bool {
-	if percent == 0 {
-		return false
-	}
-	if percent == 1 {
-		return true
-	}
-	reqIPStr, _, err := net.SplitHostPort(remoteAddr)
-	if err != nil {
-		return false
-	}
-	reqIP, err := netip.ParseAddr(reqIPStr)
-	if err != nil {
-		return false
-	}
-	if reqIP.IsLoopback() {
-		// For local testing.
-		return rand.Float64() < 0.5
-	}
-	reqIP16 := reqIP.As16()
-	rndSrc := rand.NewPCG(binary.LittleEndian.Uint64(reqIP16[:8]), binary.LittleEndian.Uint64(reqIP16[8:]))
-	rnd := rand.New(rndSrc)
-	return percent > rnd.Float64()
-}

cmd/derper/bootstrap_dns_test.go

@@ -4,19 +4,15 @@
 package main
 
 import (
-	"bytes"
 	"encoding/json"
-	"io"
 	"net"
 	"net/http"
 	"net/http/httptest"
-	"net/netip"
 	"net/url"
 	"reflect"
 	"testing"
 
 	"tailscale.com/tstest"
-	"tailscale.com/tstest/nettest"
 )
 
 func BenchmarkHandleBootstrapDNS(b *testing.B) {
@@ -41,7 +37,7 @@ func (b *bitbucketResponseWriter) Write(p []byte) (int, error) { return len(p),
 
 func (b *bitbucketResponseWriter) WriteHeader(statusCode int) {}
 
-func getBootstrapDNS(t *testing.T, q string) map[string][]net.IP {
+func getBootstrapDNS(t *testing.T, q string) dnsEntryMap {
 	t.Helper()
 	req, _ := http.NewRequest("GET", "https://localhost/bootstrap-dns?q="+url.QueryEscape(q), nil)
 	w := httptest.NewRecorder()
@@ -51,17 +47,14 @@ func getBootstrapDNS(t *testing.T, q string) map[string][]net.IP {
 	if res.StatusCode != 200 {
 		t.Fatalf("got status=%d; want %d", res.StatusCode, 200)
 	}
-	var m map[string][]net.IP
-	var buf bytes.Buffer
-	if err := json.NewDecoder(io.TeeReader(res.Body, &buf)).Decode(&m); err != nil {
-		t.Fatalf("error decoding response body %q: %v", buf.Bytes(), err)
+	var ips dnsEntryMap
+	if err := json.NewDecoder(res.Body).Decode(&ips); err != nil {
+		t.Fatalf("error decoding response body: %v", err)
 	}
-	return m
+	return ips
 }
 
 func TestUnpublishedDNS(t *testing.T) {
-	nettest.SkipIfNoNetwork(t)
-
 	const published = "login.tailscale.com"
 	const unpublished = "log.tailscale.io"
 
@@ -111,21 +104,15 @@ func resetMetrics() {
 // Verify that we don't count an empty list in the unpublishedDNSCache as a
 // cache hit in our metrics.
 func TestUnpublishedDNSEmptyList(t *testing.T) {
-	pub := &dnsEntryMap{
-		IPs: map[string][]net.IP{"tailscale.com": {net.IPv4(10, 10, 10, 10)}},
+	pub := dnsEntryMap{
+		"tailscale.com": {net.IPv4(10, 10, 10, 10)},
 	}
 	dnsCache.Store(pub)
 	dnsCacheBytes.Store([]byte(`{"tailscale.com":["10.10.10.10"]}`))
 
-	unpublishedDNSCache.Store(&dnsEntryMap{
-		IPs: map[string][]net.IP{
-			"log.tailscale.io":           {},
-			"controlplane.tailscale.com": {net.IPv4(1, 2, 3, 4)},
-		},
-		Percent: map[string]float64{
-			"log.tailscale.io":           1.0,
-			"controlplane.tailscale.com": 1.0,
-		},
+	unpublishedDNSCache.Store(dnsEntryMap{
+		"log.tailscale.io":           {},
+		"controlplane.tailscale.com": {net.IPv4(1, 2, 3, 4)},
 	})
 
 	t.Run("CacheMiss", func(t *testing.T) {
@@ -135,8 +122,8 @@ func TestUnpublishedDNSEmptyList(t *testing.T) {
 			ips := getBootstrapDNS(t, q)
 
 			// Expected our public map to be returned on a cache miss
-			if !reflect.DeepEqual(ips, pub.IPs) {
-				t.Errorf("got ips=%+v; want %+v", ips, pub.IPs)
+			if !reflect.DeepEqual(ips, pub) {
+				t.Errorf("got ips=%+v; want %+v", ips, pub)
 			}
 			if v := unpublishedDNSHits.Value(); v != 0 {
 				t.Errorf("got hits=%d; want 0", v)
@@ -151,7 +138,7 @@ func TestUnpublishedDNSEmptyList(t *testing.T) {
 	t.Run("CacheHit", func(t *testing.T) {
 		resetMetrics()
 		ips := getBootstrapDNS(t, "controlplane.tailscale.com")
-		want := map[string][]net.IP{"controlplane.tailscale.com": {net.IPv4(1, 2, 3, 4)}}
+		want := dnsEntryMap{"controlplane.tailscale.com": {net.IPv4(1, 2, 3, 4)}}
 		if !reflect.DeepEqual(ips, want) {
 			t.Errorf("got ips=%+v; want %+v", ips, want)
 		}
@@ -176,54 +163,3 @@ func TestLookupMetric(t *testing.T) {
 		t.Errorf("bootstrapLookupMap.Len() want=5, got %v", bootstrapLookupMap.Len())
 	}
 }
-
-func TestRemoteAddrMatchesPercent(t *testing.T) {
-	tests := []struct {
-		remoteAddr string
-		percent    float64
-		want       bool
-	}{
-		// 0% and 100%.
-		{"10.0.0.1:1234", 0.0, false},
-		{"10.0.0.1:1234", 1.0, true},
-
-		// Invalid IP.
-		{"", 1.0, true},
-		{"", 0.0, false},
-		{"", 0.5, false},
-
-		// Small manual sample at 50%. The func uses a deterministic PRNG seed.
-		{"1.2.3.4:567", 0.5, true},
-		{"1.2.3.5:567", 0.5, true},
-		{"1.2.3.6:567", 0.5, false},
-		{"1.2.3.7:567", 0.5, true},
-		{"1.2.3.8:567", 0.5, false},
-		{"1.2.3.9:567", 0.5, true},
-		{"1.2.3.10:567", 0.5, true},
-	}
-	for _, tt := range tests {
-		got := remoteAddrMatchesPercent(tt.remoteAddr, tt.percent)
-		if got != tt.want {
-			t.Errorf("remoteAddrMatchesPercent(%q, %v) = %v; want %v", tt.remoteAddr, tt.percent, got, tt.want)
-		}
-	}
-
-	var match, all int
-	const wantPercent = 0.5
-	for a := range 256 {
-		for b := range 256 {
-			all++
-			if remoteAddrMatchesPercent(
-				netip.AddrPortFrom(netip.AddrFrom4([4]byte{1, 2, byte(a), byte(b)}), 12345).String(),
-				wantPercent) {
-				match++
-			}
-		}
-	}
-	gotPercent := float64(match) / float64(all)
-	const tolerance = 0.005
-	t.Logf("got percent %v (goal %v)", gotPercent, wantPercent)
-	if gotPercent < wantPercent-tolerance || gotPercent > wantPercent+tolerance {
-		t.Errorf("got %v; want %v ± %v", gotPercent, wantPercent, tolerance)
-	}
-}

cmd/derper/depaware.txt

@@ -10,12 +10,6 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
    L    github.com/coreos/go-iptables/iptables                       from tailscale.com/util/linuxfw
    W 💣 github.com/dblohm7/wingoes                                   from tailscale.com/util/winutil
         github.com/fxamacker/cbor/v2                                 from tailscale.com/tka
-        github.com/go-json-experiment/json                           from tailscale.com/types/views
-        github.com/go-json-experiment/json/internal                  from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/internal/jsonflags        from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/internal/jsonopts         from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/internal/jsonwire         from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/jsontext                  from github.com/go-json-experiment/json+
         github.com/golang/groupcache/lru                             from tailscale.com/net/dnscache
    L    github.com/google/nftables                                   from tailscale.com/util/linuxfw
    L 💣 github.com/google/nftables/alignedbuff                       from github.com/google/nftables/xt
@@ -23,10 +17,10 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
    L    github.com/google/nftables/expr                              from github.com/google/nftables+
    L    github.com/google/nftables/internal/parseexprfunc            from github.com/google/nftables+
    L    github.com/google/nftables/xt                                from github.com/google/nftables/expr+
-        github.com/google/uuid                                       from tailscale.com/util/fastuuid
+        github.com/google/uuid                                       from tailscale.com/tsweb
         github.com/hdevalence/ed25519consensus                       from tailscale.com/tka
    L    github.com/josharian/native                                  from github.com/mdlayher/netlink+
-   L 💣 github.com/jsimonetti/rtnetlink                              from tailscale.com/net/netmon
+   L 💣 github.com/jsimonetti/rtnetlink                              from tailscale.com/net/interfaces+
    L    github.com/jsimonetti/rtnetlink/internal/unix                from github.com/jsimonetti/rtnetlink
    L 💣 github.com/mdlayher/netlink                                  from github.com/google/nftables+
    L 💣 github.com/mdlayher/netlink/nlenc                            from github.com/jsimonetti/rtnetlink+
@@ -52,15 +46,14 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
    L    github.com/vishvananda/netns                                 from github.com/tailscale/netlink+
         github.com/x448/float16                                      from github.com/fxamacker/cbor/v2
      💣 go4.org/mem                                                  from tailscale.com/client/tailscale+
-        go4.org/netipx                                               from tailscale.com/net/tsaddr
-   W 💣 golang.zx2c4.com/wireguard/windows/tunnel/winipcfg           from tailscale.com/net/netmon+
+        go4.org/netipx                                               from tailscale.com/net/tsaddr+
+   W 💣 golang.zx2c4.com/wireguard/windows/tunnel/winipcfg           from tailscale.com/net/interfaces+
         google.golang.org/protobuf/encoding/protodelim               from github.com/prometheus/common/expfmt
         google.golang.org/protobuf/encoding/prototext                from github.com/prometheus/common/expfmt+
         google.golang.org/protobuf/encoding/protowire                from google.golang.org/protobuf/encoding/protodelim+
         google.golang.org/protobuf/internal/descfmt                  from google.golang.org/protobuf/internal/filedesc
         google.golang.org/protobuf/internal/descopts                 from google.golang.org/protobuf/internal/filedesc+
         google.golang.org/protobuf/internal/detrand                  from google.golang.org/protobuf/internal/descfmt+
-        google.golang.org/protobuf/internal/editiondefaults          from google.golang.org/protobuf/internal/filedesc
         google.golang.org/protobuf/internal/encoding/defval          from google.golang.org/protobuf/internal/encoding/tag+
         google.golang.org/protobuf/internal/encoding/messageset      from google.golang.org/protobuf/encoding/prototext+
         google.golang.org/protobuf/internal/encoding/tag             from google.golang.org/protobuf/internal/impl
@@ -93,20 +86,22 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         tailscale.com/derp                                           from tailscale.com/cmd/derper+
         tailscale.com/derp/derphttp                                  from tailscale.com/cmd/derper
         tailscale.com/disco                                          from tailscale.com/derp
-        tailscale.com/drive                                          from tailscale.com/client/tailscale+
         tailscale.com/envknob                                        from tailscale.com/client/tailscale+
-        tailscale.com/health                                         from tailscale.com/net/tlsdial+
-        tailscale.com/hostinfo                                       from tailscale.com/net/netmon+
+        tailscale.com/health                                         from tailscale.com/net/tlsdial
+        tailscale.com/hostinfo                                       from tailscale.com/net/interfaces+
         tailscale.com/ipn                                            from tailscale.com/client/tailscale
         tailscale.com/ipn/ipnstate                                   from tailscale.com/client/tailscale+
         tailscale.com/metrics                                        from tailscale.com/cmd/derper+
         tailscale.com/net/dnscache                                   from tailscale.com/derp/derphttp
+        tailscale.com/net/flowtrack                                  from tailscale.com/net/packet+
+     💣 tailscale.com/net/interfaces                                 from tailscale.com/net/netmon+
         tailscale.com/net/ktimeout                                   from tailscale.com/cmd/derper
         tailscale.com/net/netaddr                                    from tailscale.com/ipn+
         tailscale.com/net/netknob                                    from tailscale.com/net/netns
-     💣 tailscale.com/net/netmon                                     from tailscale.com/derp/derphttp+
-     💣 tailscale.com/net/netns                                      from tailscale.com/derp/derphttp
+        tailscale.com/net/netmon                                     from tailscale.com/derp/derphttp+
+        tailscale.com/net/netns                                      from tailscale.com/derp/derphttp
         tailscale.com/net/netutil                                    from tailscale.com/client/tailscale
+        tailscale.com/net/packet                                     from tailscale.com/wgengine/filter
         tailscale.com/net/sockstats                                  from tailscale.com/derp/derphttp
         tailscale.com/net/stun                                       from tailscale.com/net/stunserver
         tailscale.com/net/stunserver                                 from tailscale.com/cmd/derper
@@ -119,17 +114,18 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
      💣 tailscale.com/safesocket                                     from tailscale.com/client/tailscale
         tailscale.com/syncs                                          from tailscale.com/cmd/derper+
         tailscale.com/tailcfg                                        from tailscale.com/client/tailscale+
+        tailscale.com/tailfs                                         from tailscale.com/client/tailscale
         tailscale.com/tka                                            from tailscale.com/client/tailscale+
-   W    tailscale.com/tsconst                                        from tailscale.com/net/netmon+
+   W    tailscale.com/tsconst                                        from tailscale.com/net/interfaces
         tailscale.com/tstime                                         from tailscale.com/derp+
         tailscale.com/tstime/mono                                    from tailscale.com/tstime/rate
-        tailscale.com/tstime/rate                                    from tailscale.com/derp
+        tailscale.com/tstime/rate                                    from tailscale.com/derp+
         tailscale.com/tsweb                                          from tailscale.com/cmd/derper
         tailscale.com/tsweb/promvarz                                 from tailscale.com/tsweb
         tailscale.com/tsweb/varz                                     from tailscale.com/tsweb+
         tailscale.com/types/dnstype                                  from tailscale.com/tailcfg
         tailscale.com/types/empty                                    from tailscale.com/ipn
-        tailscale.com/types/ipproto                                  from tailscale.com/tailcfg+
+        tailscale.com/types/ipproto                                  from tailscale.com/net/flowtrack+
         tailscale.com/types/key                                      from tailscale.com/client/tailscale+
         tailscale.com/types/lazy                                     from tailscale.com/version+
         tailscale.com/types/logger                                   from tailscale.com/cmd/derper+
@@ -141,18 +137,16 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         tailscale.com/types/structs                                  from tailscale.com/ipn+
         tailscale.com/types/tkatype                                  from tailscale.com/client/tailscale+
         tailscale.com/types/views                                    from tailscale.com/ipn+
-        tailscale.com/util/cibuild                                   from tailscale.com/health
         tailscale.com/util/clientmetric                              from tailscale.com/net/netmon+
         tailscale.com/util/cloudenv                                  from tailscale.com/hostinfo+
    W    tailscale.com/util/cmpver                                    from tailscale.com/net/tshttpproxy
         tailscale.com/util/ctxkey                                    from tailscale.com/tsweb+
    L 💣 tailscale.com/util/dirwalk                                   from tailscale.com/metrics
         tailscale.com/util/dnsname                                   from tailscale.com/hostinfo+
-        tailscale.com/util/fastuuid                                  from tailscale.com/tsweb
         tailscale.com/util/httpm                                     from tailscale.com/client/tailscale
         tailscale.com/util/lineread                                  from tailscale.com/hostinfo+
    L    tailscale.com/util/linuxfw                                   from tailscale.com/net/netns
-        tailscale.com/util/mak                                       from tailscale.com/health+
+        tailscale.com/util/mak                                       from tailscale.com/net/interfaces+
         tailscale.com/util/multierr                                  from tailscale.com/health+
         tailscale.com/util/nocasemaps                                from tailscale.com/types/ipproto
         tailscale.com/util/set                                       from tailscale.com/derp+
@@ -161,10 +155,9 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         tailscale.com/util/syspolicy                                 from tailscale.com/ipn
         tailscale.com/util/vizerror                                  from tailscale.com/tailcfg+
    W 💣 tailscale.com/util/winutil                                   from tailscale.com/hostinfo+
-   W 💣 tailscale.com/util/winutil/winenv                            from tailscale.com/hostinfo+
         tailscale.com/version                                        from tailscale.com/derp+
         tailscale.com/version/distro                                 from tailscale.com/envknob+
-        tailscale.com/wgengine/filter/filtertype                     from tailscale.com/types/netmap
+        tailscale.com/wgengine/filter                                from tailscale.com/types/netmap
         golang.org/x/crypto/acme                                     from golang.org/x/crypto/acme/autocert
         golang.org/x/crypto/acme/autocert                            from tailscale.com/cmd/derper
         golang.org/x/crypto/argon2                                   from tailscale.com/tka
@@ -179,7 +172,6 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         golang.org/x/crypto/nacl/box                                 from tailscale.com/types/key
         golang.org/x/crypto/nacl/secretbox                           from golang.org/x/crypto/nacl/box
         golang.org/x/crypto/salsa20/salsa                            from golang.org/x/crypto/nacl/box+
-   W    golang.org/x/exp/constraints                                 from tailscale.com/util/winutil
    L    golang.org/x/net/bpf                                         from github.com/mdlayher/netlink+
         golang.org/x/net/dns/dnsmessage                              from net+
         golang.org/x/net/http/httpguts                               from net/http
@@ -240,7 +232,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         encoding/pem                                                 from crypto/tls+
         errors                                                       from bufio+
         expvar                                                       from github.com/prometheus/client_golang/prometheus+
-        flag                                                         from tailscale.com/cmd/derper
+        flag                                                         from tailscale.com/cmd/derper+
         fmt                                                          from compress/flate+
         go/token                                                     from google.golang.org/protobuf/internal/strs
         hash                                                         from crypto+
@@ -258,7 +250,6 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         math/big                                                     from crypto/dsa+
         math/bits                                                    from compress/flate+
         math/rand                                                    from github.com/mdlayher/netlink+
-        math/rand/v2                                                 from tailscale.com/util/fastuuid+
         mime                                                         from github.com/prometheus/common/expfmt+
         mime/multipart                                               from net/http
         mime/quotedprintable                                         from mime/multipart
@@ -282,7 +273,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         runtime/debug                                                from github.com/prometheus/client_golang/prometheus+
         runtime/metrics                                              from github.com/prometheus/client_golang/prometheus+
         runtime/pprof                                                from net/http/pprof
-        runtime/trace                                                from net/http/pprof
+        runtime/trace                                                from net/http/pprof+
         slices                                                       from tailscale.com/ipn/ipnstate+
         sort                                                         from compress/flate+
         strconv                                                      from compress/flate+
@@ -290,6 +281,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         sync                                                         from compress/flate+
         sync/atomic                                                  from context+
         syscall                                                      from crypto/rand+
+        testing                                                      from tailscale.com/util/syspolicy
         text/tabwriter                                               from runtime/pprof
         time                                                         from compress/gzip+
         unicode                                                      from bytes+

cmd/derper/derper.go

@@ -2,12 +2,6 @@
 // SPDX-License-Identifier: BSD-3-Clause
 
 // The derper binary is a simple DERP server.
-//
-// For more information, see:
-//
-//   - About: https://tailscale.com/kb/1232/derp-servers
-//   - Protocol & Go docs: https://pkg.go.dev/tailscale.com/derp
-//   - Running a DERP server: https://github.com/tailscale/tailscale/tree/main/cmd/derper#derp
 package main // import "tailscale.com/cmd/derper"
 
 import (
@@ -28,13 +22,11 @@ import (
 	"os/signal"
 	"path/filepath"
 	"regexp"
-	"runtime"
-	runtimemetrics "runtime/metrics"
-	"strconv"
 	"strings"
 	"syscall"
 	"time"
 
+	"go4.org/mem"
 	"golang.org/x/time/rate"
 	"tailscale.com/atomicfile"
 	"tailscale.com/derp"
@@ -44,27 +36,24 @@ import (
 	"tailscale.com/net/stunserver"
 	"tailscale.com/tsweb"
 	"tailscale.com/types/key"
-	"tailscale.com/types/logger"
-	"tailscale.com/version"
 )
 
 var (
-	dev         = flag.Bool("dev", false, "run in localhost development mode (overrides -a)")
-	versionFlag = flag.Bool("version", false, "print version and exit")
-	addr        = flag.String("a", ":443", "server HTTP/HTTPS listen address, in form \":port\", \"ip:port\", or for IPv6 \"[ip]:port\". If the IP is omitted, it defaults to all interfaces. Serves HTTPS if the port is 443 and/or -certmode is manual, otherwise HTTP.")
-	httpPort    = flag.Int("http-port", 80, "The port on which to serve HTTP. Set to -1 to disable. The listener is bound to the same IP (if any) as specified in the -a flag.")
-	stunPort    = flag.Int("stun-port", 3478, "The UDP port on which to serve STUN. The listener is bound to the same IP (if any) as specified in the -a flag.")
-	configPath  = flag.String("c", "", "config file path")
-	certMode    = flag.String("certmode", "letsencrypt", "mode for getting a cert. possible options: manual, letsencrypt")
-	certDir     = flag.String("certdir", tsweb.DefaultCertDir("derper-certs"), "directory to store LetsEncrypt certs, if addr's port is :443")
-	hostname    = flag.String("hostname", "derp.tailscale.com", "LetsEncrypt host name, if addr's port is :443")
-	runSTUN     = flag.Bool("stun", true, "whether to run a STUN server. It will bind to the same IP (if any) as the --addr flag value.")
-	runDERP     = flag.Bool("derp", true, "whether to run a DERP server. The only reason to set this false is if you're decommissioning a server but want to keep its bootstrap DNS functionality still running.")
+	dev        = flag.Bool("dev", false, "run in localhost development mode (overrides -a)")
+	addr       = flag.String("a", ":443", "server HTTP/HTTPS listen address, in form \":port\", \"ip:port\", or for IPv6 \"[ip]:port\". If the IP is omitted, it defaults to all interfaces. Serves HTTPS if the port is 443 and/or -certmode is manual, otherwise HTTP.")
+	httpPort   = flag.Int("http-port", 80, "The port on which to serve HTTP. Set to -1 to disable. The listener is bound to the same IP (if any) as specified in the -a flag.")
+	stunPort   = flag.Int("stun-port", 3478, "The UDP port on which to serve STUN. The listener is bound to the same IP (if any) as specified in the -a flag.")
+	configPath = flag.String("c", "", "config file path")
+	certMode   = flag.String("certmode", "letsencrypt", "mode for getting a cert. possible options: manual, letsencrypt")
+	certDir    = flag.String("certdir", tsweb.DefaultCertDir("derper-certs"), "directory to store LetsEncrypt certs, if addr's port is :443")
+	hostname   = flag.String("hostname", "derp.tailscale.com", "LetsEncrypt host name, if addr's port is :443")
+	runSTUN    = flag.Bool("stun", true, "whether to run a STUN server. It will bind to the same IP (if any) as the --addr flag value.")
+	runDERP    = flag.Bool("derp", true, "whether to run a DERP server. The only reason to set this false is if you're decommissioning a server but want to keep its bootstrap DNS functionality still running.")
 
 	meshPSKFile     = flag.String("mesh-psk-file", defaultMeshPSKFile(), "if non-empty, path to file containing the mesh pre-shared key file. It should contain some hex string; whitespace is trimmed.")
 	meshWith        = flag.String("mesh-with", "", "optional comma-separated list of hostnames to mesh with; the server's own hostname can be in the list")
 	bootstrapDNS    = flag.String("bootstrap-dns-names", "", "optional comma-separated list of hostnames to make available at /bootstrap-dns")
-	unpublishedDNS  = flag.String("unpublished-bootstrap-dns-names", "", "optional comma-separated list of hostnames to make available at /bootstrap-dns and not publish in the list. If an entry contains a slash, the second part names a DNS record to poll for its TXT record with a `0` to `100` value for rollout percentage.")
+	unpublishedDNS  = flag.String("unpublished-bootstrap-dns-names", "", "optional comma-separated list of hostnames to make available at /bootstrap-dns and not publish in the list")
 	verifyClients   = flag.Bool("verify-clients", false, "verify clients to this DERP server through a local tailscaled instance.")
 	verifyClientURL = flag.String("verify-client-url", "", "if non-empty, an admission controller URL for permitting client connections; see tailcfg.DERPAdmitClientRequest")
 	verifyFailOpen  = flag.Bool("verify-client-url-fail-open", true, "whether we fail open if --verify-client-url is unreachable")
@@ -140,10 +129,6 @@ func writeNewConfig() config {
 
 func main() {
 	flag.Parse()
-	if *versionFlag {
-		fmt.Println(version.Long())
-		return
-	}
 
 	ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	defer cancel()
@@ -200,12 +185,7 @@ func main() {
 			http.Error(w, "derp server disabled", http.StatusNotFound)
 		}))
 	}
-
-	// These two endpoints are the same. Different versions of the clients
-	// have assumes different paths over time so we support both.
-	mux.HandleFunc("/derp/probe", derphttp.ProbeHandler)
-	mux.HandleFunc("/derp/latency-check", derphttp.ProbeHandler)
-
+	mux.HandleFunc("/derp/probe", probeHandler)
 	go refreshBootstrapDNSLoop()
 	mux.HandleFunc("/bootstrap-dns", tsweb.BrowserHeaderHandlerFunc(handleBootstrapDNS))
 	mux.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -215,16 +195,11 @@ func main() {
 		io.WriteString(w, `<html><body>
 <h1>DERP</h1>
 <p>
-  This is a <a href="https://tailscale.com/">Tailscale</a> DERP server.
+  This is a
+  <a href="https://tailscale.com/">Tailscale</a>
+  <a href="https://pkg.go.dev/tailscale.com/derp">DERP</a>
+  server.
 </p>
-<p>
-  Documentation:
-</p>
-<ul>
-  <li><a href="https://tailscale.com/kb/1232/derp-servers">About DERP</a></li>
-  <li><a href="https://pkg.go.dev/tailscale.com/derp">Protocol & Go docs</a></li>
-  <li><a href="https://github.com/tailscale/tailscale/tree/main/cmd/derper#derp">How to run a DERP server</a></li>
-</ul>
 `)
 		if !*runDERP {
 			io.WriteString(w, `<p>Status: <b>disabled</b></p>`)
@@ -250,20 +225,6 @@ func main() {
 		}
 	}))
 	debug.Handle("traffic", "Traffic check", http.HandlerFunc(s.ServeDebugTraffic))
-	debug.Handle("set-mutex-profile-fraction", "SetMutexProfileFraction", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		s := r.FormValue("rate")
-		if s == "" || r.Header.Get("Sec-Debug") != "derp" {
-			http.Error(w, "To set, use: curl -HSec-Debug:derp 'http://derp/debug/set-mutex-profile-fraction?rate=100'", http.StatusBadRequest)
-			return
-		}
-		v, err := strconv.Atoi(s)
-		if err != nil {
-			http.Error(w, "bad rate value", http.StatusBadRequest)
-			return
-		}
-		old := runtime.SetMutexProfileFraction(v)
-		fmt.Fprintf(w, "mutex changed from %v to %v\n", old, v)
-	}))
 
 	// Longer lived DERP connections send an application layer keepalive. Note
 	// if the keepalive is hit, the user timeout will take precedence over the
@@ -274,7 +235,7 @@ func main() {
 		KeepAlive: *tcpKeepAlive,
 	}
 
-	quietLogger := log.New(logger.HTTPServerLogFilter{Inner: log.Printf}, "", 0)
+	quietLogger := log.New(logFilter{}, "", 0)
 	httpsrv := &http.Server{
 		Addr:     *addr,
 		Handler:  mux,
@@ -403,6 +364,17 @@ func isChallengeChar(c rune) bool {
 		c == '.' || c == '-' || c == '_'
 }
 
+// probeHandler is the endpoint that js/wasm clients hit to measure
+// DERP latency, since they can't do UDP STUN queries.
+func probeHandler(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case "HEAD", "GET":
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+	default:
+		http.Error(w, "bogus probe method", http.StatusMethodNotAllowed)
+	}
+}
+
 var validProdHostname = regexp.MustCompile(`^derp([^.]*)\.tailscale\.com\.?$`)
 
 func prodAutocertHostPolicy(_ context.Context, host string) error {
@@ -481,15 +453,21 @@ func (l *rateLimitedListener) Accept() (net.Conn, error) {
 	return cn, nil
 }
 
-func init() {
-	expvar.Publish("go_sync_mutex_wait_seconds", expvar.Func(func() any {
-		const name = "/sync/mutex/wait/total:seconds" // Go 1.20+
-		var s [1]runtimemetrics.Sample
-		s[0].Name = name
-		runtimemetrics.Read(s[:])
-		if v := s[0].Value; v.Kind() == runtimemetrics.KindFloat64 {
-			return v.Float64()
-		}
-		return 0
-	}))
+// logFilter is used to filter out useless error logs that are logged to
+// the net/http.Server.ErrorLog logger.
+type logFilter struct{}
+
+func (logFilter) Write(p []byte) (int, error) {
+	b := mem.B(p)
+	if mem.HasSuffix(b, mem.S(": EOF\n")) ||
+		mem.HasSuffix(b, mem.S(": i/o timeout\n")) ||
+		mem.HasSuffix(b, mem.S(": read: connection reset by peer\n")) ||
+		mem.HasSuffix(b, mem.S(": remote error: tls: bad certificate\n")) ||
+		mem.HasSuffix(b, mem.S(": tls: first record does not look like a TLS handshake\n")) {
+		// Skip this log message, but say that we processed it
+		return len(p), nil
+	}
+
+	log.Printf("%s", p)
+	return len(p), nil
 }

cmd/derper/derper_test.go

@@ -99,13 +99,10 @@ func TestNoContent(t *testing.T) {
 func TestDeps(t *testing.T) {
 	deptest.DepChecker{
 		BadDeps: map[string]string{
-			"testing":                            "do not use testing package in production code",
 			"gvisor.dev/gvisor/pkg/buffer":       "https://github.com/tailscale/tailscale/issues/9756",
 			"gvisor.dev/gvisor/pkg/cpuid":        "https://github.com/tailscale/tailscale/issues/9756",
 			"gvisor.dev/gvisor/pkg/tcpip":        "https://github.com/tailscale/tailscale/issues/9756",
 			"gvisor.dev/gvisor/pkg/tcpip/header": "https://github.com/tailscale/tailscale/issues/9756",
-			"tailscale.com/net/packet":           "not needed in derper",
-			"github.com/gaissmai/bart":           "not needed in derper",
 		},
 	}.Check(t)
 }

cmd/derper/mesh.go

@@ -9,12 +9,13 @@ import (
 	"fmt"
 	"log"
 	"net"
+	"net/netip"
 	"strings"
 	"time"
 
 	"tailscale.com/derp"
 	"tailscale.com/derp/derphttp"
-	"tailscale.com/net/netmon"
+	"tailscale.com/types/key"
 	"tailscale.com/types/logger"
 )
 
@@ -35,8 +36,7 @@ func startMesh(s *derp.Server) error {
 
 func startMeshWithHost(s *derp.Server, host string) error {
 	logf := logger.WithPrefix(log.Printf, fmt.Sprintf("mesh(%q): ", host))
-	netMon := netmon.NewStatic() // good enough for cmd/derper; no need for netns fanciness
-	c, err := derphttp.NewClient(s.PrivateKey(), "https://"+host+"/derp", logf, netMon)
+	c, err := derphttp.NewClient(s.PrivateKey(), "https://"+host+"/derp", logf)
 	if err != nil {
 		return err
 	}
@@ -69,8 +69,8 @@ func startMeshWithHost(s *derp.Server, host string) error {
 		return d.DialContext(ctx, network, addr)
 	})
 
-	add := func(m derp.PeerPresentMessage) { s.AddPacketForwarder(m.Key, c) }
-	remove := func(m derp.PeerGoneMessage) { s.RemovePacketForwarder(m.Peer, c) }
+	add := func(k key.NodePublic, _ netip.AddrPort) { s.AddPacketForwarder(k, c) }
+	remove := func(k key.NodePublic) { s.RemovePacketForwarder(k, c) }
 	go c.RunWatchConnectionLoop(context.Background(), s.PublicKey(), logf, add, remove)
 	return nil
 }

cmd/derpprobe/derpprobe.go

@@ -16,40 +16,21 @@ import (
 
 	"tailscale.com/prober"
 	"tailscale.com/tsweb"
-	"tailscale.com/version"
 )
 
 var (
-	derpMapURL   = flag.String("derp-map", "https://login.tailscale.com/derpmap/default", "URL to DERP map (https:// or file://) or 'local' to use the local tailscaled's DERP map")
-	versionFlag  = flag.Bool("version", false, "print version and exit")
-	listen       = flag.String("listen", ":8030", "HTTP listen address")
-	probeOnce    = flag.Bool("once", false, "probe once and print results, then exit; ignores the listen flag")
-	spread       = flag.Bool("spread", true, "whether to spread probing over time")
-	interval     = flag.Duration("interval", 15*time.Second, "probe interval")
-	meshInterval = flag.Duration("mesh-interval", 15*time.Second, "mesh probe interval")
-	stunInterval = flag.Duration("stun-interval", 15*time.Second, "STUN probe interval")
-	tlsInterval  = flag.Duration("tls-interval", 15*time.Second, "TLS probe interval")
-	bwInterval   = flag.Duration("bw-interval", 0, "bandwidth probe interval (0 = no bandwidth probing)")
-	bwSize       = flag.Int64("bw-probe-size-bytes", 1_000_000, "bandwidth probe size")
+	derpMapURL = flag.String("derp-map", "https://login.tailscale.com/derpmap/default", "URL to DERP map (https:// or file://)")
+	listen     = flag.String("listen", ":8030", "HTTP listen address")
+	probeOnce  = flag.Bool("once", false, "probe once and print results, then exit; ignores the listen flag")
+	spread     = flag.Bool("spread", true, "whether to spread probing over time")
+	interval   = flag.Duration("interval", 15*time.Second, "probe interval")
 )
 
 func main() {
 	flag.Parse()
-	if *versionFlag {
-		fmt.Println(version.Long())
-		return
-	}
 
 	p := prober.New().WithSpread(*spread).WithOnce(*probeOnce).WithMetricNamespace("derpprobe")
-	opts := []prober.DERPOpt{
-		prober.WithMeshProbing(*meshInterval),
-		prober.WithSTUNProbing(*stunInterval),
-		prober.WithTLSProbing(*tlsInterval),
-	}
-	if *bwInterval > 0 {
-		opts = append(opts, prober.WithBandwidthProbing(*bwInterval, *bwSize))
-	}
-	dp, err := prober.DERP(p, *derpMapURL, opts...)
+	dp, err := prober.DERP(p, *derpMapURL, *interval, *interval, *interval)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -72,7 +53,6 @@ func main() {
 	mux := http.NewServeMux()
 	tsweb.Debugger(mux)
 	mux.HandleFunc("/", http.HandlerFunc(serveFunc(p)))
-	log.Printf("Listening on %s", *listen)
 	log.Fatal(http.ListenAndServe(*listen, mux))
 }
 

cmd/dist/dist.go

@@ -13,16 +13,11 @@ import (
 
 	"tailscale.com/release/dist"
 	"tailscale.com/release/dist/cli"
-	"tailscale.com/release/dist/qnap"
 	"tailscale.com/release/dist/synology"
 	"tailscale.com/release/dist/unixpkgs"
 )
 
-var (
-	synologyPackageCenter bool
-	qnapPrivateKeyPath    string
-	qnapCertificatePath   string
-)
+var synologyPackageCenter bool
 
 func getTargets() ([]dist.Target, error) {
 	var ret []dist.Target
@@ -42,10 +37,6 @@ func getTargets() ([]dist.Target, error) {
 	// To build for package center, run
 	// ./tool/go run ./cmd/dist build --synology-package-center synology
 	ret = append(ret, synology.Targets(synologyPackageCenter, nil)...)
-	if (qnapPrivateKeyPath == "") != (qnapCertificatePath == "") {
-		return nil, errors.New("both --qnap-private-key-path and --qnap-certificate-path must be set")
-	}
-	ret = append(ret, qnap.Targets(qnapPrivateKeyPath, qnapCertificatePath)...)
 	return ret, nil
 }
 
@@ -54,8 +45,6 @@ func main() {
 	for _, subcmd := range cmd.Subcommands {
 		if subcmd.Name == "build" {
 			subcmd.FlagSet.BoolVar(&synologyPackageCenter, "synology-package-center", false, "build synology packages with extra metadata for the official package center")
-			subcmd.FlagSet.StringVar(&qnapPrivateKeyPath, "qnap-private-key-path", "", "sign qnap packages with given key (must also provide --qnap-certificate-path)")
-			subcmd.FlagSet.StringVar(&qnapCertificatePath, "qnap-certificate-path", "", "sign qnap packages with given certificate (must also provide --qnap-private-key-path)")
 		}
 	}
 

cmd/k8s-nameserver/main.go

@@ -1,379 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !plan9
-
-// k8s-nameserver is a simple nameserver implementation meant to be used with
-// k8s-operator to allow to resolve magicDNS names associated with tailnet
-// proxies in cluster.
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"log"
-	"net"
-	"os"
-	"os/signal"
-	"path/filepath"
-	"sync"
-	"syscall"
-
-	"github.com/fsnotify/fsnotify"
-	"github.com/miekg/dns"
-	operatorutils "tailscale.com/k8s-operator"
-	"tailscale.com/util/dnsname"
-)
-
-const (
-	// tsNetDomain is the domain that this DNS nameserver has registered a handler for.
-	tsNetDomain = "ts.net"
-	// addr is the the address that the UDP and TCP listeners will listen on.
-	addr = ":1053"
-
-	// The following constants are specific to the nameserver configuration
-	// provided by a mounted Kubernetes Configmap. The Configmap mounted at
-	// /config is the only supported way for configuring this nameserver.
-	defaultDNSConfigDir    = "/config"
-	kubeletMountedConfigLn = "..data"
-)
-
-// nameserver is a simple nameserver that responds to DNS queries for A records
-// for ts.net domain names over UDP or TCP. It serves DNS responses from
-// in-memory IPv4 host records. It is intended to be deployed on Kubernetes with
-// a ConfigMap mounted at /config that should contain the host records. It
-// dynamically reconfigures its in-memory mappings as the contents of the
-// mounted ConfigMap changes.
-type nameserver struct {
-	// configReader returns the latest desired configuration (host records)
-	// for the nameserver. By default it gets set to a reader that reads
-	// from a Kubernetes ConfigMap mounted at /config, but this can be
-	// overridden in tests.
-	configReader configReaderFunc
-	// configWatcher is a watcher that returns an event when the desired
-	// configuration has changed and the nameserver should update the
-	// in-memory records.
-	configWatcher <-chan string
-
-	mu sync.Mutex // protects following
-	// ip4 are the in-memory hostname -> IP4 mappings that the nameserver
-	// uses to respond to A record queries.
-	ip4 map[dnsname.FQDN][]net.IP
-}
-
-func main() {
-	ctx, cancel := context.WithCancel(context.Background())
-
-	// Ensure that we watch the kube Configmap mounted at /config for
-	// nameserver configuration updates and send events when updates happen.
-	c := ensureWatcherForKubeConfigMap(ctx)
-
-	ns := &nameserver{
-		configReader:  configMapConfigReader,
-		configWatcher: c,
-	}
-
-	// Ensure that in-memory records get set up to date now and will get
-	// reset when the configuration changes.
-	ns.runRecordsReconciler(ctx)
-
-	// Register a DNS server handle for ts.net domain names. Not having a
-	// handle registered for any other domain names is how we enforce that
-	// this nameserver can only be used for ts.net domains - querying any
-	// other domain names returns Rcode Refused.
-	dns.HandleFunc(tsNetDomain, ns.handleFunc())
-
-	// Listen for DNS queries over UDP and TCP.
-	udpSig := make(chan os.Signal)
-	tcpSig := make(chan os.Signal)
-	go listenAndServe("udp", addr, udpSig)
-	go listenAndServe("tcp", addr, tcpSig)
-	sig := make(chan os.Signal, 1)
-	signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
-	s := <-sig
-	log.Printf("OS signal (%s) received, shutting down", s)
-	cancel()    // exit the records reconciler and configmap watcher goroutines
-	udpSig <- s // stop the UDP listener
-	tcpSig <- s // stop the TCP listener
-}
-
-// handleFunc is a DNS query handler that can respond to A record queries from
-// the nameserver's in-memory records.
-// - If an A record query is received and the
-// nameserver's in-memory records contain records for the queried domain name,
-// return a success response.
-// - If an A record query is received, but the
-// nameserver's in-memory records do not contain records for the queried domain name,
-// return NXDOMAIN.
-// - If an A record query is received, but the queried domain name is not valid, return Format Error.
-// - If a query is received for any other record type than A, return Not Implemented.
-func (n *nameserver) handleFunc() func(w dns.ResponseWriter, r *dns.Msg) {
-	h := func(w dns.ResponseWriter, r *dns.Msg) {
-		m := new(dns.Msg)
-		defer func() {
-			w.WriteMsg(m)
-		}()
-		if len(r.Question) < 1 {
-			log.Print("[unexpected] nameserver received a request with no questions")
-			m = r.SetRcodeFormatError(r)
-			return
-		}
-		// TODO (irbekrm): maybe set message compression
-		switch r.Question[0].Qtype {
-		case dns.TypeA:
-			q := r.Question[0].Name
-			fqdn, err := dnsname.ToFQDN(q)
-			if err != nil {
-				m = r.SetRcodeFormatError(r)
-				return
-			}
-			// The only supported use of this nameserver is as a
-			// single source of truth for MagicDNS names by
-			// non-tailnet Kubernetes workloads.
-			m.Authoritative = true
-			m.RecursionAvailable = false
-
-			ips := n.lookupIP4(fqdn)
-			if ips == nil || len(ips) == 0 {
-				// As we are the authoritative nameserver for MagicDNS
-				// names, if we do not have a record for this MagicDNS
-				// name, it does not exist.
-				m = m.SetRcode(r, dns.RcodeNameError)
-				return
-			}
-			// TODO (irbekrm): TTL is currently set to 0, meaning
-			// that cluster workloads will not cache the DNS
-			// records. Revisit this in future when we understand
-			// the usage patterns better- is it putting too much
-			// load on kube DNS server or is this fine?
-			for _, ip := range ips {
-				rr := &dns.A{Hdr: dns.RR_Header{Name: q, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 0}, A: ip}
-				m.SetRcode(r, dns.RcodeSuccess)
-				m.Answer = append(m.Answer, rr)
-			}
-		case dns.TypeAAAA:
-			// TODO (irbekrm): add IPv6 support.
-			// The nameserver currently does not support IPv6
-			// (records are not being created for IPv6 Pod addresses).
-			// However, we can expect that some callers will
-			// nevertheless send AAAA queries.
-			// We have to return NOERROR if a query is received for
-			// an AAAA record for a DNS name that we have an A
-			// record for- else the caller might not follow with an
-			// A record query.
-			// https://github.com/tailscale/tailscale/issues/12321
-			// https://datatracker.ietf.org/doc/html/rfc4074
-			q := r.Question[0].Name
-			fqdn, err := dnsname.ToFQDN(q)
-			if err != nil {
-				m = r.SetRcodeFormatError(r)
-				return
-			}
-			// The only supported use of this nameserver is as a
-			// single source of truth for MagicDNS names by
-			// non-tailnet Kubernetes workloads.
-			m.Authoritative = true
-			ips := n.lookupIP4(fqdn)
-			if len(ips) == 0 {
-				// As we are the authoritative nameserver for MagicDNS
-				// names, if we do not have a record for this MagicDNS
-				// name, it does not exist.
-				m = m.SetRcode(r, dns.RcodeNameError)
-				return
-			}
-			m.SetRcode(r, dns.RcodeSuccess)
-		default:
-			log.Printf("[unexpected] nameserver received a query for an unsupported record type: %s", r.Question[0].String())
-			m.SetRcode(r, dns.RcodeNotImplemented)
-		}
-	}
-	return h
-}
-
-// runRecordsReconciler ensures that nameserver's in-memory records are
-// reset when the provided configuration changes.
-func (n *nameserver) runRecordsReconciler(ctx context.Context) {
-	log.Print("updating nameserver's records from the provided configuration...")
-	if err := n.resetRecords(); err != nil { // ensure records are up to date before the nameserver starts
-		log.Fatalf("error setting nameserver's records: %v", err)
-	}
-	log.Print("nameserver's records were updated")
-	go func() {
-		for {
-			select {
-			case <-ctx.Done():
-				log.Printf("context cancelled, exiting records reconciler")
-				return
-			case <-n.configWatcher:
-				log.Print("configuration update detected, resetting records")
-				if err := n.resetRecords(); err != nil {
-					// TODO (irbekrm): this runs in a
-					// container that will be thrown away,
-					// so this should be ok. But maybe still
-					// need to ensure that the DNS server
-					// terminates connections more
-					// gracefully.
-					log.Fatalf("error resetting records: %v", err)
-				}
-				log.Print("nameserver records were reset")
-			}
-		}
-	}()
-}
-
-// resetRecords sets the in-memory DNS records of this nameserver from the
-// provided configuration. It does not check for the diff, so the caller is
-// expected to ensure that this is only called when reset is needed.
-func (n *nameserver) resetRecords() error {
-	dnsCfgBytes, err := n.configReader()
-	if err != nil {
-		log.Printf("error reading nameserver's configuration: %v", err)
-		return err
-	}
-	if dnsCfgBytes == nil || len(dnsCfgBytes) < 1 {
-		log.Print("nameserver's configuration is empty, any in-memory records will be unset")
-		n.mu.Lock()
-		n.ip4 = make(map[dnsname.FQDN][]net.IP)
-		n.mu.Unlock()
-		return nil
-	}
-	dnsCfg := &operatorutils.Records{}
-	err = json.Unmarshal(dnsCfgBytes, dnsCfg)
-	if err != nil {
-		return fmt.Errorf("error unmarshalling nameserver configuration: %v\n", err)
-	}
-
-	if dnsCfg.Version != operatorutils.Alpha1Version {
-		return fmt.Errorf("unsupported configuration version %s, supported versions are %s\n", dnsCfg.Version, operatorutils.Alpha1Version)
-	}
-
-	ip4 := make(map[dnsname.FQDN][]net.IP)
-	defer func() {
-		n.mu.Lock()
-		defer n.mu.Unlock()
-		n.ip4 = ip4
-	}()
-
-	if len(dnsCfg.IP4) == 0 {
-		log.Print("nameserver's configuration contains no records, any in-memory records will be unset")
-		return nil
-	}
-
-	for fqdn, ips := range dnsCfg.IP4 {
-		fqdn, err := dnsname.ToFQDN(fqdn)
-		if err != nil {
-			log.Printf("invalid nameserver's configuration: %s is not a valid FQDN: %v; skipping this record", fqdn, err)
-			continue // one invalid hostname should not break the whole nameserver
-		}
-		for _, ipS := range ips {
-			ip := net.ParseIP(ipS).To4()
-			if ip == nil { // To4 returns nil if IP is not a IPv4 address
-				log.Printf("invalid nameserver's configuration: %v does not appear to be an IPv4 address; skipping this record", ipS)
-				continue // one invalid IP address should not break the whole nameserver
-			}
-			ip4[fqdn] = []net.IP{ip}
-		}
-	}
-	return nil
-}
-
-// listenAndServe starts a DNS server for the provided network and address.
-func listenAndServe(net, addr string, shutdown chan os.Signal) {
-	s := &dns.Server{Addr: addr, Net: net}
-	go func() {
-		<-shutdown
-		log.Printf("shutting down server for %s", net)
-		s.Shutdown()
-	}()
-	log.Printf("listening for %s queries on %s", net, addr)
-	if err := s.ListenAndServe(); err != nil {
-		log.Fatalf("error running %s server: %v", net, err)
-	}
-}
-
-// ensureWatcherForKubeConfigMap sets up a new file watcher for the ConfigMap
-// that's expected to be mounted at /config. Returns a channel that receives an
-// event every time the contents get updated.
-func ensureWatcherForKubeConfigMap(ctx context.Context) chan string {
-	c := make(chan string)
-	watcher, err := fsnotify.NewWatcher()
-	if err != nil {
-		log.Fatalf("error creating a new watcher for the mounted ConfigMap: %v", err)
-	}
-	// kubelet mounts configmap to a Pod using a series of symlinks, one of
-	// which is <mount-dir>/..data that Kubernetes recommends consumers to
-	// use if they need to monitor changes
-	// https://github.com/kubernetes/kubernetes/blob/v1.28.1/pkg/volume/util/atomic_writer.go#L39-L61
-	toWatch := filepath.Join(defaultDNSConfigDir, kubeletMountedConfigLn)
-	go func() {
-		defer watcher.Close()
-		log.Printf("starting file watch for %s", defaultDNSConfigDir)
-		for {
-			select {
-			case <-ctx.Done():
-				log.Print("context cancelled, exiting ConfigMap watcher")
-				return
-			case event, ok := <-watcher.Events:
-				if !ok {
-					log.Fatal("watcher finished; exiting")
-				}
-				if event.Name == toWatch {
-					msg := fmt.Sprintf("ConfigMap update received: %s", event)
-					log.Print(msg)
-					c <- msg
-				}
-			case err, ok := <-watcher.Errors:
-				if err != nil {
-					// TODO (irbekrm): this runs in a
-					// container that will be thrown away,
-					// so this should be ok. But maybe still
-					// need to ensure that the DNS server
-					// terminates connections more
-					// gracefully.
-					log.Fatalf("[unexpected] error watching configuration: %v", err)
-				}
-				if !ok {
-					// TODO (irbekrm): this runs in a
-					// container that will be thrown away,
-					// so this should be ok. But maybe still
-					// need to ensure that the DNS server
-					// terminates connections more
-					// gracefully.
-					log.Fatalf("[unexpected] errors watcher exited")
-				}
-			}
-		}
-	}()
-	if err = watcher.Add(defaultDNSConfigDir); err != nil {
-		log.Fatalf("failed setting up a watcher for the mounted ConfigMap: %v", err)
-	}
-	return c
-}
-
-// configReaderFunc is a function that returns the desired nameserver configuration.
-type configReaderFunc func() ([]byte, error)
-
-// configMapConfigReader reads the desired nameserver configuration from a
-// records.json file in a ConfigMap mounted at /config.
-var configMapConfigReader configReaderFunc = func() ([]byte, error) {
-	if contents, err := os.ReadFile(filepath.Join(defaultDNSConfigDir, operatorutils.DNSRecordsCMKey)); err == nil {
-		return contents, nil
-	} else if os.IsNotExist(err) {
-		return nil, nil
-	} else {
-		return nil, err
-	}
-}
-
-// lookupIP4 returns any IPv4 addresses for the given FQDN from nameserver's
-// in-memory records.
-func (n *nameserver) lookupIP4(fqdn dnsname.FQDN) []net.IP {
-	if n.ip4 == nil {
-		return nil
-	}
-	n.mu.Lock()
-	defer n.mu.Unlock()
-	f := n.ip4[fqdn]
-	return f
-}

cmd/k8s-nameserver/main_test.go

@@ -1,229 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !plan9
-
-package main
-
-import (
-	"net"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-	"github.com/miekg/dns"
-	"tailscale.com/util/dnsname"
-)
-
-func TestNameserver(t *testing.T) {
-
-	tests := []struct {
-		name     string
-		ip4      map[dnsname.FQDN][]net.IP
-		query    *dns.Msg
-		wantResp *dns.Msg
-	}{
-		{
-			name: "A record query, record exists",
-			ip4:  map[dnsname.FQDN][]net.IP{dnsname.FQDN("foo.bar.com."): {{1, 2, 3, 4}}},
-			query: &dns.Msg{
-				Question: []dns.Question{{Name: "foo.bar.com", Qtype: dns.TypeA}},
-				MsgHdr:   dns.MsgHdr{Id: 1, RecursionDesired: true},
-			},
-			wantResp: &dns.Msg{
-				Answer: []dns.RR{&dns.A{Hdr: dns.RR_Header{
-					Name: "foo.bar.com", Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 0},
-					A: net.IP{1, 2, 3, 4}}},
-				Question: []dns.Question{{Name: "foo.bar.com", Qtype: dns.TypeA}},
-				MsgHdr: dns.MsgHdr{
-					Id:                 1,
-					Rcode:              dns.RcodeSuccess,
-					RecursionAvailable: false,
-					RecursionDesired:   true,
-					Response:           true,
-					Opcode:             dns.OpcodeQuery,
-					Authoritative:      true,
-				}},
-		},
-		{
-			name: "A record query, record does not exist",
-			ip4:  map[dnsname.FQDN][]net.IP{dnsname.FQDN("foo.bar.com."): {{1, 2, 3, 4}}},
-			query: &dns.Msg{
-				Question: []dns.Question{{Name: "baz.bar.com", Qtype: dns.TypeA}},
-				MsgHdr:   dns.MsgHdr{Id: 1},
-			},
-			wantResp: &dns.Msg{
-				Question: []dns.Question{{Name: "baz.bar.com", Qtype: dns.TypeA}},
-				MsgHdr: dns.MsgHdr{
-					Id:                 1,
-					Rcode:              dns.RcodeNameError,
-					RecursionAvailable: false,
-					Response:           true,
-					Opcode:             dns.OpcodeQuery,
-					Authoritative:      true,
-				}},
-		},
-		{
-			name: "A record query, but the name is not a valid FQDN",
-			ip4:  map[dnsname.FQDN][]net.IP{dnsname.FQDN("foo.bar.com."): {{1, 2, 3, 4}}},
-			query: &dns.Msg{
-				Question: []dns.Question{{Name: "foo..bar.com", Qtype: dns.TypeA}},
-				MsgHdr:   dns.MsgHdr{Id: 1},
-			},
-			wantResp: &dns.Msg{
-				Question: []dns.Question{{Name: "foo..bar.com", Qtype: dns.TypeA}},
-				MsgHdr: dns.MsgHdr{
-					Id:       1,
-					Rcode:    dns.RcodeFormatError,
-					Response: true,
-					Opcode:   dns.OpcodeQuery,
-				}},
-		},
-		{
-			name: "AAAA record query, A record exists",
-			ip4:  map[dnsname.FQDN][]net.IP{dnsname.FQDN("foo.bar.com."): {{1, 2, 3, 4}}},
-			query: &dns.Msg{
-				Question: []dns.Question{{Name: "foo.bar.com", Qtype: dns.TypeAAAA}},
-				MsgHdr:   dns.MsgHdr{Id: 1},
-			},
-			wantResp: &dns.Msg{
-				Question: []dns.Question{{Name: "foo.bar.com", Qtype: dns.TypeAAAA}},
-				MsgHdr: dns.MsgHdr{
-					Id:            1,
-					Rcode:         dns.RcodeSuccess,
-					Response:      true,
-					Opcode:        dns.OpcodeQuery,
-					Authoritative: true,
-				}},
-		},
-		{
-			name: "AAAA record query, A record does not exist",
-			ip4:  map[dnsname.FQDN][]net.IP{dnsname.FQDN("foo.bar.com."): {{1, 2, 3, 4}}},
-			query: &dns.Msg{
-				Question: []dns.Question{{Name: "baz.bar.com", Qtype: dns.TypeAAAA}},
-				MsgHdr:   dns.MsgHdr{Id: 1},
-			},
-			wantResp: &dns.Msg{
-				Question: []dns.Question{{Name: "baz.bar.com", Qtype: dns.TypeAAAA}},
-				MsgHdr: dns.MsgHdr{
-					Id:            1,
-					Rcode:         dns.RcodeNameError,
-					Response:      true,
-					Opcode:        dns.OpcodeQuery,
-					Authoritative: true,
-				}},
-		},
-		{
-			name: "CNAME record query",
-			ip4:  map[dnsname.FQDN][]net.IP{dnsname.FQDN("foo.bar.com."): {{1, 2, 3, 4}}},
-			query: &dns.Msg{
-				Question: []dns.Question{{Name: "foo.bar.com", Qtype: dns.TypeCNAME}},
-				MsgHdr:   dns.MsgHdr{Id: 1},
-			},
-			wantResp: &dns.Msg{
-				Question: []dns.Question{{Name: "foo.bar.com", Qtype: dns.TypeCNAME}},
-				MsgHdr: dns.MsgHdr{
-					Id:       1,
-					Rcode:    dns.RcodeNotImplemented,
-					Response: true,
-					Opcode:   dns.OpcodeQuery,
-				}},
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			ns := &nameserver{
-				ip4: tt.ip4,
-			}
-			handler := ns.handleFunc()
-			fakeRespW := &fakeResponseWriter{}
-			handler(fakeRespW, tt.query)
-			if diff := cmp.Diff(*fakeRespW.msg, *tt.wantResp); diff != "" {
-				t.Fatalf("unexpected response (-got +want): \n%s", diff)
-			}
-		})
-	}
-}
-
-func TestResetRecords(t *testing.T) {
-	tests := []struct {
-		name     string
-		config   []byte
-		hasIp4   map[dnsname.FQDN][]net.IP
-		wantsIp4 map[dnsname.FQDN][]net.IP
-		wantsErr bool
-	}{
-		{
-			name:     "previously empty nameserver.ip4 gets set",
-			config:   []byte(`{"version": "v1alpha1", "ip4": {"foo.bar.com": ["1.2.3.4"]}}`),
-			wantsIp4: map[dnsname.FQDN][]net.IP{"foo.bar.com.": {{1, 2, 3, 4}}},
-		},
-		{
-			name:     "nameserver.ip4 gets reset",
-			hasIp4:   map[dnsname.FQDN][]net.IP{"baz.bar.com.": {{1, 1, 3, 3}}},
-			config:   []byte(`{"version": "v1alpha1", "ip4": {"foo.bar.com": ["1.2.3.4"]}}`),
-			wantsIp4: map[dnsname.FQDN][]net.IP{"foo.bar.com.": {{1, 2, 3, 4}}},
-		},
-		{
-			name:     "configuration with incompatible version",
-			hasIp4:   map[dnsname.FQDN][]net.IP{"baz.bar.com.": {{1, 1, 3, 3}}},
-			config:   []byte(`{"version": "v1beta1", "ip4": {"foo.bar.com": ["1.2.3.4"]}}`),
-			wantsIp4: map[dnsname.FQDN][]net.IP{"baz.bar.com.": {{1, 1, 3, 3}}},
-			wantsErr: true,
-		},
-		{
-			name:     "nameserver.ip4 gets reset to empty config when no configuration is provided",
-			hasIp4:   map[dnsname.FQDN][]net.IP{"baz.bar.com.": {{1, 1, 3, 3}}},
-			wantsIp4: make(map[dnsname.FQDN][]net.IP),
-		},
-		{
-			name:     "nameserver.ip4 gets reset to empty config when the provided configuration is empty",
-			hasIp4:   map[dnsname.FQDN][]net.IP{"baz.bar.com.": {{1, 1, 3, 3}}},
-			config:   []byte(`{"version": "v1alpha1", "ip4": {}}`),
-			wantsIp4: make(map[dnsname.FQDN][]net.IP),
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			ns := &nameserver{
-				ip4:          tt.hasIp4,
-				configReader: func() ([]byte, error) { return tt.config, nil },
-			}
-			if err := ns.resetRecords(); err == nil == tt.wantsErr {
-				t.Errorf("resetRecords() returned err: %v, wantsErr: %v", err, tt.wantsErr)
-			}
-			if diff := cmp.Diff(ns.ip4, tt.wantsIp4); diff != "" {
-				t.Fatalf("unexpected nameserver.ip4 contents (-got +want): \n%s", diff)
-			}
-		})
-	}
-}
-
-// fakeResponseWriter is a faked out dns.ResponseWriter that can be used in
-// tests that need to read the response message that was written.
-type fakeResponseWriter struct {
-	msg *dns.Msg
-}
-
-var _ dns.ResponseWriter = &fakeResponseWriter{}
-
-func (fr *fakeResponseWriter) WriteMsg(msg *dns.Msg) error {
-	fr.msg = msg
-	return nil
-}
-func (fr *fakeResponseWriter) LocalAddr() net.Addr {
-	return nil
-}
-func (fr *fakeResponseWriter) RemoteAddr() net.Addr {
-	return nil
-}
-func (fr *fakeResponseWriter) Write([]byte) (int, error) {
-	return 0, nil
-}
-func (fr *fakeResponseWriter) Close() error {
-	return nil
-}
-func (fr *fakeResponseWriter) TsigStatus() error {
-	return nil
-}
-func (fr *fakeResponseWriter) TsigTimersOnly(bool) {}
-func (fr *fakeResponseWriter) Hijack()             {}

cmd/k8s-operator/connector.go

@@ -33,8 +33,11 @@ import (
 
 const (
 	reasonConnectorCreationFailed = "ConnectorCreationFailed"
-	reasonConnectorCreated        = "ConnectorCreated"
-	reasonConnectorInvalid        = "ConnectorInvalid"
+
+	reasonConnectorCreated           = "ConnectorCreated"
+	reasonConnectorCleanupFailed     = "ConnectorCleanupFailed"
+	reasonConnectorCleanupInProgress = "ConnectorCleanupInProgress"
+	reasonConnectorInvalid           = "ConnectorInvalid"
 
 	messageConnectorCreationFailed = "Failed creating Connector: %v"
 	messageConnectorInvalid        = "Connector is invalid: %v"
@@ -105,7 +108,7 @@ func (a *ConnectorReconciler) Reconcile(ctx context.Context, req reconcile.Reque
 	}
 
 	oldCnStatus := cn.Status.DeepCopy()
-	setStatus := func(cn *tsapi.Connector, _ tsapi.ConditionType, status metav1.ConditionStatus, reason, message string) (reconcile.Result, error) {
+	setStatus := func(cn *tsapi.Connector, conditionType tsapi.ConnectorConditionType, status metav1.ConditionStatus, reason, message string) (reconcile.Result, error) {
 		tsoperator.SetConnectorCondition(cn, tsapi.ConnectorReady, status, reason, message, cn.Generation, a.clock, logger)
 		if !apiequality.Semantic.DeepEqual(oldCnStatus, cn.Status) {
 			// An error encountered here should get returned by the Reconcile function.
@@ -181,7 +184,7 @@ func (a *ConnectorReconciler) maybeProvisionConnector(ctx context.Context, logge
 		Connector: &connector{
 			isExitNode: cn.Spec.ExitNode,
 		},
-		ProxyClassName: proxyClass,
+		ProxyClass: proxyClass,
 	}
 
 	if cn.Spec.SubnetRouter != nil && len(cn.Spec.SubnetRouter.AdvertiseRoutes) > 0 {
@@ -208,27 +211,7 @@ func (a *ConnectorReconciler) maybeProvisionConnector(ctx context.Context, logge
 	gaugeConnectorResources.Set(int64(connectors.Len()))
 
 	_, err := a.ssr.Provision(ctx, logger, sts)
-	if err != nil {
-		return err
-	}
-
-	_, tsHost, ips, err := a.ssr.DeviceInfo(ctx, crl)
-	if err != nil {
-		return err
-	}
-
-	if tsHost == "" {
-		logger.Debugf("no Tailscale hostname known yet, waiting for connector pod to finish auth")
-		// No hostname yet. Wait for the connector pod to auth.
-		cn.Status.TailnetIPs = nil
-		cn.Status.Hostname = ""
-		return nil
-	}
-
-	cn.Status.TailnetIPs = ips
-	cn.Status.Hostname = tsHost
-
-	return nil
+	return err
 }
 
 func (a *ConnectorReconciler) maybeCleanupConnector(ctx context.Context, logger *zap.SugaredLogger, cn *tsapi.Connector) (bool, error) {

cmd/k8s-operator/connector_test.go

@@ -17,7 +17,6 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 	tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
 	"tailscale.com/tstest"
-	"tailscale.com/util/mak"
 )
 
 func TestConnector(t *testing.T) {
@@ -30,7 +29,7 @@ func TestConnector(t *testing.T) {
 		},
 		TypeMeta: metav1.TypeMeta{
 			Kind:       tsapi.ConnectorKind,
-			APIVersion: "tailscale.com/v1alpha1",
+			APIVersion: "tailscale.io/v1alpha1",
 		},
 		Spec: tsapi.ConnectorSpec{
 			SubnetRouter: &tsapi.SubnetRouter{
@@ -68,57 +67,45 @@ func TestConnector(t *testing.T) {
 	fullName, shortName := findGenName(t, fc, "", "test", "connector")
 
 	opts := configOpts{
-		stsName:      shortName,
-		secretName:   fullName,
-		parentType:   "connector",
-		hostname:     "test-connector",
-		isExitNode:   true,
-		subnetRoutes: "10.40.0.0/14",
+		stsName:                    shortName,
+		secretName:                 fullName,
+		parentType:                 "connector",
+		hostname:                   "test-connector",
+		shouldUseDeclarativeConfig: true,
+		isExitNode:                 true,
+		subnetRoutes:               "10.40.0.0/14",
+		confFileHash:               "9321660203effb80983eaecc7b5ac5a8c53934926f46e895b9fe295dcfc5a904",
 	}
-	expectEqual(t, fc, expectedSecret(t, fc, opts), nil)
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
-
-	// Connector status should get updated with the IP/hostname info when available.
-	const hostname = "foo.tailnetxyz.ts.net"
-	mustUpdate(t, fc, "operator-ns", opts.secretName, func(secret *corev1.Secret) {
-		mak.Set(&secret.Data, "device_id", []byte("1234"))
-		mak.Set(&secret.Data, "device_fqdn", []byte(hostname))
-		mak.Set(&secret.Data, "device_ips", []byte(`["127.0.0.1", "::1"]`))
-	})
-	expectReconciled(t, cr, "", "test")
-	cn.Finalizers = append(cn.Finalizers, "tailscale.com/finalizer")
-	cn.Status.IsExitNode = cn.Spec.ExitNode
-	cn.Status.SubnetRoutes = cn.Spec.SubnetRouter.AdvertiseRoutes.Stringify()
-	cn.Status.Hostname = hostname
-	cn.Status.TailnetIPs = []string{"127.0.0.1", "::1"}
-	expectEqual(t, fc, cn, func(o *tsapi.Connector) {
-		o.Status.Conditions = nil
-	})
+	expectEqual(t, fc, expectedSecret(t, opts))
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Add another route to be advertised.
 	mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
 		conn.Spec.SubnetRouter.AdvertiseRoutes = []tsapi.Route{"10.40.0.0/14", "10.44.0.0/20"}
 	})
 	opts.subnetRoutes = "10.40.0.0/14,10.44.0.0/20"
+	opts.confFileHash = "fb6c4daf67425f983985750cd8d6f2beae77e614fcb34176604571f5623d6862"
 	expectReconciled(t, cr, "", "test")
 
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Remove a route.
 	mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
 		conn.Spec.SubnetRouter.AdvertiseRoutes = []tsapi.Route{"10.44.0.0/20"}
 	})
 	opts.subnetRoutes = "10.44.0.0/20"
+	opts.confFileHash = "bacba177bcfe3849065cf6fee53d658a9bb4144197ac5b861727d69ea99742bb"
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Remove the subnet router.
 	mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
 		conn.Spec.SubnetRouter = nil
 	})
 	opts.subnetRoutes = ""
+	opts.confFileHash = "7c421a99128eb80e79a285a82702f19f8f720615542a15bd794858a6275d8079"
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Re-add the subnet router.
 	mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
@@ -127,8 +114,9 @@ func TestConnector(t *testing.T) {
 		}
 	})
 	opts.subnetRoutes = "10.44.0.0/20"
+	opts.confFileHash = "bacba177bcfe3849065cf6fee53d658a9bb4144197ac5b861727d69ea99742bb"
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Delete the Connector.
 	if err = fc.Delete(context.Background(), cn); err != nil {
@@ -164,22 +152,25 @@ func TestConnector(t *testing.T) {
 	fullName, shortName = findGenName(t, fc, "", "test", "connector")
 
 	opts = configOpts{
-		stsName:      shortName,
-		secretName:   fullName,
-		parentType:   "connector",
-		subnetRoutes: "10.40.0.0/14",
-		hostname:     "test-connector",
+		stsName:                    shortName,
+		secretName:                 fullName,
+		parentType:                 "connector",
+		shouldUseDeclarativeConfig: true,
+		subnetRoutes:               "10.40.0.0/14",
+		hostname:                   "test-connector",
+		confFileHash:               "57d922331890c9b1c8c6ae664394cb254334c551d9cd9db14537b5d9da9fb17e",
 	}
-	expectEqual(t, fc, expectedSecret(t, fc, opts), nil)
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSecret(t, opts))
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Add an exit node.
 	mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
 		conn.Spec.ExitNode = true
 	})
 	opts.isExitNode = true
+	opts.confFileHash = "1499b591fd97a50f0330db6ec09979792c49890cf31f5da5bb6a3f50dba1e77a"
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// Delete the Connector.
 	if err = fc.Delete(context.Background(), cn); err != nil {
@@ -248,15 +239,17 @@ func TestConnectorWithProxyClass(t *testing.T) {
 	fullName, shortName := findGenName(t, fc, "", "test", "connector")
 
 	opts := configOpts{
-		stsName:      shortName,
-		secretName:   fullName,
-		parentType:   "connector",
-		hostname:     "test-connector",
-		isExitNode:   true,
-		subnetRoutes: "10.40.0.0/14",
+		stsName:                    shortName,
+		secretName:                 fullName,
+		parentType:                 "connector",
+		hostname:                   "test-connector",
+		shouldUseDeclarativeConfig: true,
+		isExitNode:                 true,
+		subnetRoutes:               "10.40.0.0/14",
+		confFileHash:               "9321660203effb80983eaecc7b5ac5a8c53934926f46e895b9fe295dcfc5a904",
 	}
-	expectEqual(t, fc, expectedSecret(t, fc, opts), nil)
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSecret(t, opts))
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// 2. Update Connector to specify a ProxyClass. ProxyClass is not yet
 	// ready, so its configuration is NOT applied to the Connector
@@ -265,22 +258,26 @@ func TestConnectorWithProxyClass(t *testing.T) {
 		conn.Spec.ProxyClass = "custom-metadata"
 	})
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// 3. ProxyClass is set to Ready by proxy-class reconciler. Connector
 	// get reconciled and configuration from the ProxyClass is applied to
 	// its resources.
 	mustUpdateStatus(t, fc, "", "custom-metadata", func(pc *tsapi.ProxyClass) {
 		pc.Status = tsapi.ProxyClassStatus{
-			Conditions: []metav1.Condition{{
+			Conditions: []tsapi.ConnectorCondition{{
 				Status:             metav1.ConditionTrue,
-				Type:               string(tsapi.ProxyClassready),
+				Type:               tsapi.ProxyClassready,
 				ObservedGeneration: pc.Generation,
 			}}}
 	})
 	opts.proxyClass = pc.Name
+	// We lose the auth key on second reconcile, because in code it's set to
+	// StringData, but is actually read from Data. This works with a real
+	// API server, but not with our test setup here.
+	opts.confFileHash = "1499b591fd97a50f0330db6ec09979792c49890cf31f5da5bb6a3f50dba1e77a"
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// 4. Connector.spec.proxyClass field is unset, Connector gets
 	// reconciled and configuration from the ProxyClass is removed from the
@@ -290,5 +287,5 @@ func TestConnectorWithProxyClass(t *testing.T) {
 	})
 	opts.proxyClass = ""
 	expectReconciled(t, cr, "", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 }

cmd/k8s-operator/deploy/chart/templates/deployment.yaml

@@ -21,9 +21,6 @@ spec:
       {{- end }}
       labels:
         app: operator
-        {{- with .Values.operatorConfig.podLabels }}
-        {{- toYaml . | nindent 8 }}
-        {{- end }}
     spec:
       {{- with .Values.imagePullSecrets }}
       imagePullSecrets:
@@ -49,7 +46,7 @@ spec:
             {{- toYaml . | nindent 12 }}
           {{- end }}
           {{- $operatorTag:= printf ":%s" ( .Values.operatorConfig.image.tag | default .Chart.AppVersion )}}
-          image: {{ coalesce .Values.operatorConfig.image.repo .Values.operatorConfig.image.repository }}{{- if .Values.operatorConfig.image.digest -}}{{ printf "@%s" .Values.operatorConfig.image.digest}}{{- else -}}{{ printf "%s" $operatorTag }}{{- end }}
+          image: {{ .Values.operatorConfig.image.repo }}{{- if .Values.operatorConfig.image.digest -}}{{ printf "@%s" .Values.operatorConfig.image.digest}}{{- else -}}{{ printf "%s" $operatorTag }}{{- end }}
           imagePullPolicy: {{ .Values.operatorConfig.image.pullPolicy }}
           env:
             - name: OPERATOR_INITIAL_TAGS
@@ -70,7 +67,7 @@ spec:
               value: /oauth/client_secret
             {{- $proxyTag := printf ":%s" ( .Values.proxyConfig.image.tag | default .Chart.AppVersion )}}
             - name: PROXY_IMAGE
-              value: {{ coalesce .Values.proxyConfig.image.repo .Values.proxyConfig.image.repository }}{{- if .Values.proxyConfig.image.digest -}}{{ printf "@%s" .Values.proxyConfig.image.digest}}{{- else -}}{{ printf "%s" $proxyTag }}{{- end }}
+              value: {{ .Values.proxyConfig.image.repo }}{{- if .Values.proxyConfig.image.digest -}}{{ printf "@%s" .Values.proxyConfig.image.digest}}{{- else -}}{{ printf "%s" $proxyTag }}{{- end }}
             - name: PROXY_TAGS
               value: {{ .Values.proxyConfig.defaultTags }}
             - name: APISERVER_PROXY

cmd/k8s-operator/deploy/chart/templates/operator-rbac.yaml

@@ -24,9 +24,6 @@ rules:
 - apiGroups: ["tailscale.com"]
   resources: ["connectors", "connectors/status", "proxyclasses", "proxyclasses/status"]
   verbs: ["get", "list", "watch", "update"]
-- apiGroups: ["tailscale.com"]
-  resources: ["dnsconfigs", "dnsconfigs/status"]
-  verbs: ["get", "list", "watch", "update"]
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
@@ -48,14 +45,11 @@ metadata:
   namespace: {{ .Release.Namespace }}
 rules:
 - apiGroups: [""]
-  resources: ["secrets", "serviceaccounts", "configmaps"]
+  resources: ["secrets"]
   verbs: ["*"]
 - apiGroups: ["apps"]
-  resources: ["statefulsets", "deployments"]
+  resources: ["statefulsets"]
   verbs: ["*"]
-- apiGroups: ["discovery.k8s.io"]
-  resources: ["endpointslices"]
-  verbs: ["get", "list", "watch"]
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding

cmd/k8s-operator/deploy/chart/values.yaml

@@ -12,7 +12,7 @@ oauth: {}
 # of chart installation. We do not use Helm's CRD installation mechanism as that
 # does not allow for upgrading CRDs.
 # https://helm.sh/docs/chart_best_practices/custom_resource_definitions/
-installCRDs: true
+installCRDs: "true"
 
 operatorConfig:
   # ACL tag that operator will be tagged with. Operator must be made owner of
@@ -23,8 +23,7 @@ operatorConfig:
     - "tag:k8s-operator"
 
   image:
-    # Repository defaults to DockerHub, but images are also synced to ghcr.io/tailscale/k8s-operator.
-    repository: tailscale/k8s-operator
+    repo: tailscale/k8s-operator
     # Digest will be prioritized over tag. If neither are set appVersion will be
     # used.
     tag: ""
@@ -38,7 +37,6 @@ operatorConfig:
   resources: {}
 
   podAnnotations: {}
-  podLabels: {}
 
   tolerations: []
 
@@ -52,14 +50,9 @@ operatorConfig:
 # proxies created by the operator.
 # https://tailscale.com/kb/1236/kubernetes-operator/#cluster-ingress
 # https://tailscale.com/kb/1236/kubernetes-operator/#cluster-egress
-# Note that this section contains only a few global configuration options and
-# will not be updated with more configuration options in the future.
-# If you need more configuration options, take a look at ProxyClass:
-# https://tailscale.com/kb/1236/kubernetes-operator#cluster-resource-customization-using-proxyclass-custom-resource
 proxyConfig:
   image:
-    # Repository defaults to DockerHub, but images are also synced to ghcr.io/tailscale/tailscale.
-    repository: tailscale/tailscale
+    repo: tailscale/tailscale
     # Digest will be prioritized over tag. If neither are set appVersion will be
     # used.
     tag: ""

cmd/k8s-operator/deploy/crds/tailscale.com_connectors.yaml

@@ -2,7 +2,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.15.1-0.20240618033008-7824932b0cab
+    controller-gen.kubebuilder.io/version: v0.13.0
   name: connectors.tailscale.com
 spec:
   group: tailscale.com
@@ -31,95 +31,47 @@ spec:
       name: v1alpha1
       schema:
         openAPIV3Schema:
-          description: |-
-            Connector defines a Tailscale node that will be deployed in the cluster. The
-            node can be configured to act as a Tailscale subnet router and/or a Tailscale
-            exit node.
-            Connector is a cluster-scoped resource.
-            More info:
-            https://tailscale.com/kb/1236/kubernetes-operator#deploying-exit-nodes-and-subnet-routers-on-kubernetes-using-connector-custom-resource
           type: object
           required:
             - spec
           properties:
             apiVersion:
-              description: |-
-                APIVersion defines the versioned schema of this representation of an object.
-                Servers should convert recognized schemas to the latest internal value, and
-                may reject unrecognized values.
-                More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
+              description: 'APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
               type: string
             kind:
-              description: |-
-                Kind is a string value representing the REST resource this object represents.
-                Servers may infer this from the endpoint the client submits requests to.
-                Cannot be updated.
-                In CamelCase.
-                More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
+              description: 'Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
               type: string
             metadata:
               type: object
             spec:
-              description: |-
-                ConnectorSpec describes the desired Tailscale component.
-                More info:
-                https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
+              description: ConnectorSpec describes the desired Tailscale component.
               type: object
               properties:
                 exitNode:
-                  description: |-
-                    ExitNode defines whether the Connector node should act as a
-                    Tailscale exit node. Defaults to false.
-                    https://tailscale.com/kb/1103/exit-nodes
+                  description: ExitNode defines whether the Connector node should act as a Tailscale exit node. Defaults to false. https://tailscale.com/kb/1103/exit-nodes
                   type: boolean
                 hostname:
-                  description: |-
-                    Hostname is the tailnet hostname that should be assigned to the
-                    Connector node. If unset, hostname defaults to <connector
-                    name>-connector. Hostname can contain lower case letters, numbers and
-                    dashes, it must not start or end with a dash and must be between 2
-                    and 63 characters long.
+                  description: Hostname is the tailnet hostname that should be assigned to the Connector node. If unset, hostname defaults to <connector name>-connector. Hostname can contain lower case letters, numbers and dashes, it must not start or end with a dash and must be between 2 and 63 characters long.
                   type: string
                   pattern: ^[a-z0-9][a-z0-9-]{0,61}[a-z0-9]$
                 proxyClass:
-                  description: |-
-                    ProxyClass is the name of the ProxyClass custom resource that
-                    contains configuration options that should be applied to the
-                    resources created for this Connector. If unset, the operator will
-                    create resources with the default configuration.
+                  description: ProxyClass is the name of the ProxyClass custom resource that contains configuration options that should be applied to the resources created for this Connector. If unset, the operator will create resources with the default configuration.
                   type: string
                 subnetRouter:
-                  description: |-
-                    SubnetRouter defines subnet routes that the Connector node should
-                    expose to tailnet. If unset, none are exposed.
-                    https://tailscale.com/kb/1019/subnets/
+                  description: SubnetRouter defines subnet routes that the Connector node should expose to tailnet. If unset, none are exposed. https://tailscale.com/kb/1019/subnets/
                   type: object
                   required:
                     - advertiseRoutes
                   properties:
                     advertiseRoutes:
-                      description: |-
-                        AdvertiseRoutes refer to CIDRs that the subnet router should make
-                        available. Route values must be strings that represent a valid IPv4
-                        or IPv6 CIDR range. Values can be Tailscale 4via6 subnet routes.
-                        https://tailscale.com/kb/1201/4via6-subnets/
+                      description: AdvertiseRoutes refer to CIDRs that the subnet router should make available. Route values must be strings that represent a valid IPv4 or IPv6 CIDR range. Values can be Tailscale 4via6 subnet routes. https://tailscale.com/kb/1201/4via6-subnets/
                       type: array
                       minItems: 1
                       items:
                         type: string
                         format: cidr
                 tags:
-                  description: |-
-                    Tags that the Tailscale node will be tagged with.
-                    Defaults to [tag:k8s].
-                    To autoapprove the subnet routes or exit node defined by a Connector,
-                    you can configure Tailscale ACLs to give these tags the necessary
-                    permissions.
-                    See https://tailscale.com/kb/1018/acls/#auto-approvers-for-routes-and-exit-nodes.
-                    If you specify custom tags here, you must also make the operator an owner of these tags.
-                    See  https://tailscale.com/kb/1236/kubernetes-operator/#setting-up-the-kubernetes-operator.
-                    Tags cannot be changed once a Connector node has been created.
-                    Tag values must be in form ^tag:[a-zA-Z][a-zA-Z0-9-]*$.
+                  description: Tags that the Tailscale node will be tagged with. Defaults to [tag:k8s]. To autoapprove the subnet routes or exit node defined by a Connector, you can configure Tailscale ACLs to give these tags the necessary permissions. See https://tailscale.com/kb/1018/acls/#auto-approvers-for-routes-and-exit-nodes. If you specify custom tags here, you must also make the operator an owner of these tags. See  https://tailscale.com/kb/1236/kubernetes-operator/#setting-up-the-kubernetes-operator. Tags cannot be changed once a Connector node has been created. Tag values must be in form ^tag:[a-zA-Z][a-zA-Z0-9-]*$.
                   type: array
                   items:
                     type: string
@@ -128,93 +80,48 @@ spec:
                 - rule: has(self.subnetRouter) || self.exitNode == true
                   message: A Connector needs to be either an exit node or a subnet router, or both.
             status:
-              description: |-
-                ConnectorStatus describes the status of the Connector. This is set
-                and managed by the Tailscale operator.
+              description: ConnectorStatus describes the status of the Connector. This is set and managed by the Tailscale operator.
               type: object
               properties:
                 conditions:
-                  description: |-
-                    List of status conditions to indicate the status of the Connector.
-                    Known condition types are `ConnectorReady`.
+                  description: List of status conditions to indicate the status of the Connector. Known condition types are `ConnectorReady`.
                   type: array
                   items:
-                    description: Condition contains details for one aspect of the current state of this API Resource.
+                    description: ConnectorCondition contains condition information for a Connector.
                     type: object
                     required:
-                      - lastTransitionTime
-                      - message
-                      - reason
                       - status
                       - type
                     properties:
                       lastTransitionTime:
-                        description: |-
-                          lastTransitionTime is the last time the condition transitioned from one status to another.
-                          This should be when the underlying condition changed.  If that is not known, then using the time when the API field changed is acceptable.
+                        description: LastTransitionTime is the timestamp corresponding to the last status change of this condition.
                         type: string
                         format: date-time
                       message:
-                        description: |-
-                          message is a human readable message indicating details about the transition.
-                          This may be an empty string.
+                        description: Message is a human readable description of the details of the last transition, complementing reason.
                         type: string
-                        maxLength: 32768
                       observedGeneration:
-                        description: |-
-                          observedGeneration represents the .metadata.generation that the condition was set based upon.
-                          For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
-                          with respect to the current state of the instance.
+                        description: If set, this represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.condition[x].observedGeneration is 9, the condition is out of date with respect to the current state of the Connector.
                         type: integer
                         format: int64
-                        minimum: 0
                       reason:
-                        description: |-
-                          reason contains a programmatic identifier indicating the reason for the condition's last transition.
-                          Producers of specific condition types may define expected values and meanings for this field,
-                          and whether the values are considered a guaranteed API.
-                          The value should be a CamelCase string.
-                          This field may not be empty.
+                        description: Reason is a brief machine readable explanation for the condition's last transition.
                         type: string
-                        maxLength: 1024
-                        minLength: 1
-                        pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
                       status:
-                        description: status of the condition, one of True, False, Unknown.
+                        description: Status of the condition, one of ('True', 'False', 'Unknown').
                         type: string
-                        enum:
-                          - "True"
-                          - "False"
-                          - Unknown
                       type:
-                        description: type of condition in CamelCase or in foo.example.com/CamelCase.
+                        description: Type of the condition, known values are (`SubnetRouterReady`).
                         type: string
-                        maxLength: 316
-                        pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
                   x-kubernetes-list-map-keys:
                     - type
                   x-kubernetes-list-type: map
-                hostname:
-                  description: |-
-                    Hostname is the fully qualified domain name of the Connector node.
-                    If MagicDNS is enabled in your tailnet, it is the MagicDNS name of the
-                    node.
-                  type: string
                 isExitNode:
                   description: IsExitNode is set to true if the Connector acts as an exit node.
                   type: boolean
                 subnetRoutes:
-                  description: |-
-                    SubnetRoutes are the routes currently exposed to tailnet via this
-                    Connector instance.
+                  description: SubnetRoutes are the routes currently exposed to tailnet via this Connector instance.
                   type: string
-                tailnetIPs:
-                  description: |-
-                    TailnetIPs is the set of tailnet IP addresses (both IPv4 and IPv6)
-                    assigned to the Connector node.
-                  type: array
-                  items:
-                    type: string
       served: true
       storage: true
       subresources:

cmd/k8s-operator/deploy/crds/tailscale.com_dnsconfigs.yaml

@@ -1,181 +0,0 @@
-apiVersion: apiextensions.k8s.io/v1
-kind: CustomResourceDefinition
-metadata:
-  annotations:
-    controller-gen.kubebuilder.io/version: v0.15.1-0.20240618033008-7824932b0cab
-  name: dnsconfigs.tailscale.com
-spec:
-  group: tailscale.com
-  names:
-    kind: DNSConfig
-    listKind: DNSConfigList
-    plural: dnsconfigs
-    shortNames:
-      - dc
-    singular: dnsconfig
-  scope: Cluster
-  versions:
-    - additionalPrinterColumns:
-        - description: Service IP address of the nameserver
-          jsonPath: .status.nameserver.ip
-          name: NameserverIP
-          type: string
-      name: v1alpha1
-      schema:
-        openAPIV3Schema:
-          description: |-
-            DNSConfig can be deployed to cluster to make a subset of Tailscale MagicDNS
-            names resolvable by cluster workloads. Use this if: A) you need to refer to
-            tailnet services, exposed to cluster via Tailscale Kubernetes operator egress
-            proxies by the MagicDNS names of those tailnet services (usually because the
-            services run over HTTPS)
-            B) you have exposed a cluster workload to the tailnet using Tailscale Ingress
-            and you also want to refer to the workload from within the cluster over the
-            Ingress's MagicDNS name (usually because you have some callback component
-            that needs to use the same URL as that used by a non-cluster client on
-            tailnet).
-            When a DNSConfig is applied to a cluster, Tailscale Kubernetes operator will
-            deploy a nameserver for ts.net DNS names and automatically populate it with records
-            for any Tailscale egress or Ingress proxies deployed to that cluster.
-            Currently you must manually update your cluster DNS configuration to add the
-            IP address of the deployed nameserver as a ts.net stub nameserver.
-            Instructions for how to do it:
-            https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/#configuration-of-stub-domain-and-upstream-nameserver-using-coredns (for CoreDNS),
-            https://cloud.google.com/kubernetes-engine/docs/how-to/kube-dns (for kube-dns).
-            Tailscale Kubernetes operator will write the address of a Service fronting
-            the nameserver to dsnconfig.status.nameserver.ip.
-            DNSConfig is a singleton - you must not create more than one.
-            NB: if you want cluster workloads to be able to refer to Tailscale Ingress
-            using its MagicDNS name, you must also annotate the Ingress resource with
-            tailscale.com/experimental-forward-cluster-traffic-via-ingress annotation to
-            ensure that the proxy created for the Ingress listens on its Pod IP address.
-            NB: Clusters where Pods get assigned IPv6 addresses only are currently not supported.
-          type: object
-          required:
-            - spec
-          properties:
-            apiVersion:
-              description: |-
-                APIVersion defines the versioned schema of this representation of an object.
-                Servers should convert recognized schemas to the latest internal value, and
-                may reject unrecognized values.
-                More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
-              type: string
-            kind:
-              description: |-
-                Kind is a string value representing the REST resource this object represents.
-                Servers may infer this from the endpoint the client submits requests to.
-                Cannot be updated.
-                In CamelCase.
-                More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
-              type: string
-            metadata:
-              type: object
-            spec:
-              description: |-
-                Spec describes the desired DNS configuration.
-                More info:
-                https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
-              type: object
-              required:
-                - nameserver
-              properties:
-                nameserver:
-                  description: |-
-                    Configuration for a nameserver that can resolve ts.net DNS names
-                    associated with in-cluster proxies for Tailscale egress Services and
-                    Tailscale Ingresses. The operator will always deploy this nameserver
-                    when a DNSConfig is applied.
-                  type: object
-                  properties:
-                    image:
-                      description: Nameserver image.
-                      type: object
-                      properties:
-                        repo:
-                          description: Repo defaults to tailscale/k8s-nameserver.
-                          type: string
-                        tag:
-                          description: Tag defaults to operator's own tag.
-                          type: string
-            status:
-              description: |-
-                Status describes the status of the DNSConfig. This is set
-                and managed by the Tailscale operator.
-              type: object
-              properties:
-                conditions:
-                  type: array
-                  items:
-                    description: Condition contains details for one aspect of the current state of this API Resource.
-                    type: object
-                    required:
-                      - lastTransitionTime
-                      - message
-                      - reason
-                      - status
-                      - type
-                    properties:
-                      lastTransitionTime:
-                        description: |-
-                          lastTransitionTime is the last time the condition transitioned from one status to another.
-                          This should be when the underlying condition changed.  If that is not known, then using the time when the API field changed is acceptable.
-                        type: string
-                        format: date-time
-                      message:
-                        description: |-
-                          message is a human readable message indicating details about the transition.
-                          This may be an empty string.
-                        type: string
-                        maxLength: 32768
-                      observedGeneration:
-                        description: |-
-                          observedGeneration represents the .metadata.generation that the condition was set based upon.
-                          For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
-                          with respect to the current state of the instance.
-                        type: integer
-                        format: int64
-                        minimum: 0
-                      reason:
-                        description: |-
-                          reason contains a programmatic identifier indicating the reason for the condition's last transition.
-                          Producers of specific condition types may define expected values and meanings for this field,
-                          and whether the values are considered a guaranteed API.
-                          The value should be a CamelCase string.
-                          This field may not be empty.
-                        type: string
-                        maxLength: 1024
-                        minLength: 1
-                        pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
-                      status:
-                        description: status of the condition, one of True, False, Unknown.
-                        type: string
-                        enum:
-                          - "True"
-                          - "False"
-                          - Unknown
-                      type:
-                        description: type of condition in CamelCase or in foo.example.com/CamelCase.
-                        type: string
-                        maxLength: 316
-                        pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
-                  x-kubernetes-list-map-keys:
-                    - type
-                  x-kubernetes-list-type: map
-                nameserver:
-                  description: Nameserver describes the status of nameserver cluster resources.
-                  type: object
-                  properties:
-                    ip:
-                      description: |-
-                        IP is the ClusterIP of the Service fronting the deployed ts.net nameserver.
-                        Currently you must manually update your cluster DNS config to add
-                        this address as a stub nameserver for ts.net for cluster workloads to be
-                        able to resolve MagicDNS names associated with egress or Ingress
-                        proxies.
-                        The IP address will change if you delete and recreate the DNSConfig.
-                      type: string
-      served: true
-      storage: true
-      subresources:
-        status: {}

cmd/k8s-operator/deploy/examples/dnsconfig.yaml

@@ -1,6 +0,0 @@
-apiVersion: tailscale.com/v1alpha1
-kind: DNSConfig 
-metadata:
-  name: ts-dns
-spec:
-  nameserver: {}

cmd/k8s-operator/deploy/examples/proxyclass.yaml

@@ -3,21 +3,13 @@ kind: ProxyClass
 metadata:
   name: prod
 spec:
-  metrics:
-    enable: true
   statefulSet:
     annotations:
-      platform-component: infra
+      platform-component: infra 
     pod:
       labels:
         team: eng
       nodeSelector:
-        kubernetes.io/os: "linux"
+        beta.kubernetes.io/os: "linux"
       imagePullSecrets:
       - name: "foo"
-      tailscaleContainer:
-        image: "ghcr.io/tailscale/tailscale:v1.64"
-        imagePullPolicy: IfNotPresent
-      tailscaleInitContainer:
-        image: "ghcr.io/tailscale/tailscale:v1.64"
-        imagePullPolicy: IfNotPresent

cmd/k8s-operator/deploy/manifests/nameserver/cm.yaml

@@ -1,4 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: dnsrecords

cmd/k8s-operator/deploy/manifests/nameserver/deploy.yaml

@@ -1,37 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: nameserver 
-spec:
-  replicas: 1
-  revisionHistoryLimit: 5
-  selector:
-    matchLabels:
-      app: nameserver
-  strategy:
-    type: Recreate
-  template:
-    metadata:
-      labels:
-        app: nameserver
-    spec:
-      containers:
-      - imagePullPolicy: IfNotPresent
-        name: nameserver
-        ports:
-        - name: tcp
-          protocol: TCP
-          containerPort: 1053
-        - name: udp
-          protocol: UDP
-          containerPort: 1053
-        volumeMounts:
-        - name: dnsrecords
-          mountPath: /config
-      restartPolicy: Always
-      serviceAccount: nameserver
-      serviceAccountName: nameserver
-      volumes:
-      - name: dnsrecords
-        configMap:
-          name: dnsrecords

cmd/k8s-operator/deploy/manifests/nameserver/sa.yaml

@@ -1,4 +0,0 @@
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: nameserver

cmd/k8s-operator/deploy/manifests/nameserver/svc.yaml

@@ -1,16 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: nameserver
-spec:
-  selector:
-    app: nameserver
-  ports:
-  - name: udp
-    targetPort: 1053
-    port: 53
-    protocol: UDP
-  - name: tcp
-    targetPort: 1053
-    port: 53
-    protocol: TCP 

cmd/k8s-operator/deploy/manifests/proxy.yaml

@@ -14,8 +14,10 @@ spec:
         - name: sysctler
           securityContext:
             privileged: true
-          command: ["/bin/sh", "-c"]
-          args: [sysctl -w net.ipv4.ip_forward=1 && if sysctl net.ipv6.conf.all.forwarding; then sysctl -w net.ipv6.conf.all.forwarding=1; fi]
+          command: ["/bin/sh"]
+          args:
+            - -c
+            - sysctl -w net.ipv4.ip_forward=1 net.ipv6.conf.all.forwarding=1
       resources:
         requests:
           cpu: 1m
@@ -26,6 +28,8 @@ spec:
           env:
             - name: TS_USERSPACE
               value: "false"
+            - name: TS_AUTH_ONCE
+              value: "true"
             - name: POD_IP
               valueFrom:
                 fieldRef:

cmd/k8s-operator/deploy/manifests/userspace-proxy.yaml

@@ -20,7 +20,5 @@ spec:
           env:
             - name: TS_USERSPACE
               value: "true"
-            - name: POD_IP
-              valueFrom:
-                fieldRef:
-                  fieldPath: status.podIP
+            - name: TS_AUTH_ONCE
+              value: "true"

cmd/k8s-operator/dnsrecords.go

@@ -1,337 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !plan9
-
-// tailscale-operator provides a way to expose services running in a Kubernetes
-// cluster to your Tailnet and to make Tailscale nodes available to cluster
-// workloads
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"slices"
-
-	"go.uber.org/zap"
-	corev1 "k8s.io/api/core/v1"
-	discoveryv1 "k8s.io/api/discovery/v1"
-	networkingv1 "k8s.io/api/networking/v1"
-	apiequality "k8s.io/apimachinery/pkg/api/equality"
-	apierrors "k8s.io/apimachinery/pkg/api/errors"
-	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/utils/net"
-	"sigs.k8s.io/controller-runtime/pkg/client"
-	"sigs.k8s.io/controller-runtime/pkg/reconcile"
-	operatorutils "tailscale.com/k8s-operator"
-	tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
-	"tailscale.com/util/mak"
-)
-
-const (
-	dnsRecordsRecocilerFinalizer = "tailscale.com/dns-records-reconciler"
-	annotationTSMagicDNSName     = "tailscale.com/magic-dnsname"
-)
-
-// dnsRecordsReconciler knows how to update dnsrecords ConfigMap with DNS
-// records.
-// The records that it creates are:
-//   - For tailscale Ingress, a mapping of the Ingress's MagicDNSName to the IP address of
-//     the ingress proxy Pod.
-//   - For egress proxies configured via tailscale.com/tailnet-fqdn annotation, a
-//     mapping of the tailnet FQDN to the IP address of the egress proxy Pod.
-//
-// Records will only be created if there is exactly one ready
-// tailscale.com/v1alpha1.DNSConfig instance in the cluster (so that we know
-// that there is a ts.net nameserver deployed in the cluster).
-type dnsRecordsReconciler struct {
-	client.Client
-	tsNamespace           string // namespace in which we provision tailscale resources
-	logger                *zap.SugaredLogger
-	isDefaultLoadBalancer bool // true if operator is the default ingress controller in this cluster
-}
-
-// Reconcile takes a reconcile.Request for a headless Service fronting a
-// tailscale proxy and updates DNS Records in dnsrecords ConfigMap for the
-// in-cluster ts.net nameserver if required.
-func (dnsRR *dnsRecordsReconciler) Reconcile(ctx context.Context, req reconcile.Request) (res reconcile.Result, err error) {
-	logger := dnsRR.logger.With("Service", req.NamespacedName)
-	logger.Debugf("starting reconcile")
-	defer logger.Debugf("reconcile finished")
-
-	headlessSvc := new(corev1.Service)
-	err = dnsRR.Client.Get(ctx, req.NamespacedName, headlessSvc)
-	if apierrors.IsNotFound(err) {
-		logger.Debugf("Service not found")
-		return reconcile.Result{}, nil
-	}
-	if err != nil {
-		return reconcile.Result{}, fmt.Errorf("failed to get Service: %w", err)
-	}
-	if !(isManagedByType(headlessSvc, "svc") || isManagedByType(headlessSvc, "ingress")) {
-		logger.Debugf("Service is not a headless Service for a tailscale ingress or egress proxy; do nothing")
-		return reconcile.Result{}, nil
-	}
-
-	if !headlessSvc.DeletionTimestamp.IsZero() {
-		logger.Debug("Service is being deleted, clean up resources")
-		return reconcile.Result{}, dnsRR.maybeCleanup(ctx, headlessSvc, logger)
-	}
-
-	// Check that there is a ts.net nameserver deployed to the cluster by
-	// checking that there is tailscale.com/v1alpha1.DNSConfig resource in a
-	// Ready state.
-	dnsCfgLst := new(tsapi.DNSConfigList)
-	if err = dnsRR.List(ctx, dnsCfgLst); err != nil {
-		return reconcile.Result{}, fmt.Errorf("error listing DNSConfigs: %w", err)
-	}
-	if len(dnsCfgLst.Items) == 0 {
-		logger.Debugf("DNSConfig does not exist, not creating DNS records")
-		return reconcile.Result{}, nil
-	}
-	if len(dnsCfgLst.Items) > 1 {
-		logger.Errorf("Invalid cluster state - more than one DNSConfig found in cluster. Please ensure no more than one exists")
-		return reconcile.Result{}, nil
-	}
-	dnsCfg := dnsCfgLst.Items[0]
-	if !operatorutils.DNSCfgIsReady(&dnsCfg) {
-		logger.Info("DNSConfig is not ready yet, waiting...")
-		return reconcile.Result{}, nil
-	}
-
-	return reconcile.Result{}, dnsRR.maybeProvision(ctx, headlessSvc, logger)
-}
-
-// maybeProvision ensures that dnsrecords ConfigMap contains a record for the
-// proxy associated with the headless Service.
-// The record is only provisioned if the proxy is for a tailscale Ingress or
-// egress configured via tailscale.com/tailnet-fqdn annotation.
-//
-// For Ingress, the record is a mapping between the MagicDNSName of the Ingress, retrieved from
-// ingress.status.loadBalancer.ingress.hostname field and the proxy Pod IP addresses
-// retrieved from the EndpoinSlice associated with this headless Service, i.e
-// Records{IP4: <MagicDNS name of the Ingress>: <[IPs of the ingress proxy Pods]>}
-//
-// For egress, the record is a mapping between tailscale.com/tailnet-fqdn
-// annotation and the proxy Pod IP addresses, retrieved from the EndpointSlice
-// associated with this headless Service, i.e
-// Records{IP4: {<tailscale.com/tailnet-fqdn>: <[IPs of the egress proxy Pods]>}
-//
-// If records need to be created for this proxy, maybeProvision will also:
-// - update the headless Service with a tailscale.com/magic-dnsname annotation
-// - update the headless Service with a finalizer
-func (dnsRR *dnsRecordsReconciler) maybeProvision(ctx context.Context, headlessSvc *corev1.Service, logger *zap.SugaredLogger) error {
-	if headlessSvc == nil {
-		logger.Info("[unexpected] maybeProvision called with a nil Service")
-		return nil
-	}
-	isEgressFQDNSvc, err := dnsRR.isSvcForFQDNEgressProxy(ctx, headlessSvc)
-	if err != nil {
-		return fmt.Errorf("error checking whether the Service is for an egress proxy: %w", err)
-	}
-	if !(isEgressFQDNSvc || isManagedByType(headlessSvc, "ingress")) {
-		logger.Debug("Service is not fronting a proxy that we create DNS records for; do nothing")
-		return nil
-	}
-	fqdn, err := dnsRR.fqdnForDNSRecord(ctx, headlessSvc, logger)
-	if err != nil {
-		return fmt.Errorf("error determining DNS name for record: %w", err)
-	}
-	if fqdn == "" {
-		logger.Debugf("MagicDNS name does not (yet) exist, not provisioning DNS record")
-		return nil // a new reconcile will be triggered once it's added
-	}
-
-	oldHeadlessSvc := headlessSvc.DeepCopy()
-	// Ensure that headless Service is annotated with a finalizer to help
-	// with records cleanup when proxy resources are deleted.
-	if !slices.Contains(headlessSvc.Finalizers, dnsRecordsRecocilerFinalizer) {
-		headlessSvc.Finalizers = append(headlessSvc.Finalizers, dnsRecordsRecocilerFinalizer)
-	}
-	// Ensure that headless Service is annotated with the current MagicDNS
-	// name to help with records cleanup when proxy resources are deleted or
-	// MagicDNS name changes.
-	oldFqdn := headlessSvc.Annotations[annotationTSMagicDNSName]
-	if oldFqdn != "" && oldFqdn != fqdn { // i.e user has changed the value of tailscale.com/tailnet-fqdn annotation
-		logger.Debugf("MagicDNS name has changed, remvoving record for %s", oldFqdn)
-		updateFunc := func(rec *operatorutils.Records) {
-			delete(rec.IP4, oldFqdn)
-		}
-		if err = dnsRR.updateDNSConfig(ctx, updateFunc); err != nil {
-			return fmt.Errorf("error removing record for %s: %w", oldFqdn, err)
-		}
-	}
-	mak.Set(&headlessSvc.Annotations, annotationTSMagicDNSName, fqdn)
-	if !apiequality.Semantic.DeepEqual(oldHeadlessSvc, headlessSvc) {
-		logger.Infof("provisioning DNS record for MagicDNS name: %s", fqdn) // this will be printed exactly once
-		if err := dnsRR.Update(ctx, headlessSvc); err != nil {
-			return fmt.Errorf("error updating proxy headless Service metadata: %w", err)
-		}
-	}
-
-	// Get the Pod IP addresses for the proxy from the EndpointSlice for the
-	// headless Service.
-	labels := map[string]string{discoveryv1.LabelServiceName: headlessSvc.Name} // https://kubernetes.io/docs/concepts/services-networking/endpoint-slices/#ownership
-	eps, err := getSingleObject[discoveryv1.EndpointSlice](ctx, dnsRR.Client, dnsRR.tsNamespace, labels)
-	if err != nil {
-		return fmt.Errorf("error getting the EndpointSlice for the proxy's headless Service: %w", err)
-	}
-	if eps == nil {
-		logger.Debugf("proxy's headless Service EndpointSlice does not yet exist. We will reconcile again once it's created")
-		return nil
-	}
-	// An EndpointSlice for a Service can have a list of endpoints that each
-	// can have multiple addresses - these are the IP addresses of any Pods
-	// selected by that Service. Pick all the IPv4 addresses.
-	ips := make([]string, 0)
-	for _, ep := range eps.Endpoints {
-		for _, ip := range ep.Addresses {
-			if !net.IsIPv4String(ip) {
-				logger.Infof("EndpointSlice contains IP address %q that is not IPv4, ignoring. Currently only IPv4 is supported", ip)
-			} else {
-				ips = append(ips, ip)
-			}
-		}
-	}
-	if len(ips) == 0 {
-		logger.Debugf("EndpointSlice for the Service contains no IPv4 addresses. We will reconcile again once they are created.")
-		return nil
-	}
-	updateFunc := func(rec *operatorutils.Records) {
-		mak.Set(&rec.IP4, fqdn, ips)
-	}
-	if err = dnsRR.updateDNSConfig(ctx, updateFunc); err != nil {
-		return fmt.Errorf("error updating DNS records: %w", err)
-	}
-	return nil
-}
-
-// maybeCleanup ensures that the DNS record for the proxy has been removed from
-// dnsrecords ConfigMap and the tailscale.com/dns-records-reconciler finalizer
-// has been removed from the Service. If the record is not found in the
-// ConfigMap, the ConfigMap does not exist, or the Service does not have
-// tailscale.com/magic-dnsname annotation, just remove the finalizer.
-func (h *dnsRecordsReconciler) maybeCleanup(ctx context.Context, headlessSvc *corev1.Service, logger *zap.SugaredLogger) error {
-	ix := slices.Index(headlessSvc.Finalizers, dnsRecordsRecocilerFinalizer)
-	if ix == -1 {
-		logger.Debugf("no finalizer, nothing to do")
-		return nil
-	}
-	cm := &corev1.ConfigMap{}
-	err := h.Client.Get(ctx, types.NamespacedName{Name: operatorutils.DNSRecordsCMName, Namespace: h.tsNamespace}, cm)
-	if apierrors.IsNotFound(err) {
-		logger.Debug("'dsnrecords' ConfigMap not found")
-		return h.removeHeadlessSvcFinalizer(ctx, headlessSvc)
-	}
-	if err != nil {
-		return fmt.Errorf("error retrieving 'dnsrecords' ConfigMap: %w", err)
-	}
-	if cm.Data == nil {
-		logger.Debug("'dnsrecords' ConfigMap contains no records")
-		return h.removeHeadlessSvcFinalizer(ctx, headlessSvc)
-	}
-	_, ok := cm.Data[operatorutils.DNSRecordsCMKey]
-	if !ok {
-		logger.Debug("'dnsrecords' ConfigMap contains no records")
-		return h.removeHeadlessSvcFinalizer(ctx, headlessSvc)
-	}
-	fqdn, _ := headlessSvc.GetAnnotations()[annotationTSMagicDNSName]
-	if fqdn == "" {
-		return h.removeHeadlessSvcFinalizer(ctx, headlessSvc)
-	}
-	logger.Infof("removing DNS record for MagicDNS name %s", fqdn)
-	updateFunc := func(rec *operatorutils.Records) {
-		delete(rec.IP4, fqdn)
-	}
-	if err = h.updateDNSConfig(ctx, updateFunc); err != nil {
-		return fmt.Errorf("error updating DNS config: %w", err)
-	}
-	return h.removeHeadlessSvcFinalizer(ctx, headlessSvc)
-}
-
-func (dnsRR *dnsRecordsReconciler) removeHeadlessSvcFinalizer(ctx context.Context, headlessSvc *corev1.Service) error {
-	idx := slices.Index(headlessSvc.Finalizers, dnsRecordsRecocilerFinalizer)
-	if idx == -1 {
-		return nil
-	}
-	headlessSvc.Finalizers = append(headlessSvc.Finalizers[:idx], headlessSvc.Finalizers[idx+1:]...)
-	return dnsRR.Update(ctx, headlessSvc)
-}
-
-// fqdnForDNSRecord returns MagicDNS name associated with a given headless Service.
-// If the headless Service is for a tailscale Ingress proxy, returns ingress.status.loadBalancer.ingress.hostname.
-// If the headless Service is for an tailscale egress proxy configured via tailscale.com/tailnet-fqdn annotation, returns the annotation value.
-// This function is not expected to be called with headless Services for other
-// proxy types, or any other Services, but it just returns an empty string if
-// that happens.
-func (dnsRR *dnsRecordsReconciler) fqdnForDNSRecord(ctx context.Context, headlessSvc *corev1.Service, logger *zap.SugaredLogger) (string, error) {
-	parentName := parentFromObjectLabels(headlessSvc)
-	if isManagedByType(headlessSvc, "ingress") {
-		ing := new(networkingv1.Ingress)
-		if err := dnsRR.Get(ctx, parentName, ing); err != nil {
-			return "", err
-		}
-		if len(ing.Status.LoadBalancer.Ingress) == 0 {
-			return "", nil
-		}
-		return ing.Status.LoadBalancer.Ingress[0].Hostname, nil
-	}
-	if isManagedByType(headlessSvc, "svc") {
-		svc := new(corev1.Service)
-		if err := dnsRR.Get(ctx, parentName, svc); apierrors.IsNotFound(err) {
-			logger.Info("[unexpected] parent Service for egress proxy %s not found", headlessSvc.Name)
-			return "", nil
-		} else if err != nil {
-			return "", err
-		}
-		return svc.Annotations[AnnotationTailnetTargetFQDN], nil
-	}
-	return "", nil
-}
-
-// updateDNSConfig runs the provided update function against dnsrecords
-// ConfigMap. At this point the in-cluster ts.net nameserver is expected to be
-// successfully created together with the ConfigMap.
-func (dnsRR *dnsRecordsReconciler) updateDNSConfig(ctx context.Context, update func(*operatorutils.Records)) error {
-	cm := &corev1.ConfigMap{}
-	err := dnsRR.Get(ctx, types.NamespacedName{Name: operatorutils.DNSRecordsCMName, Namespace: dnsRR.tsNamespace}, cm)
-	if apierrors.IsNotFound(err) {
-		dnsRR.logger.Info("[unexpected] dnsrecords ConfigMap not found in cluster. Not updating DNS records. Please open an isue and attach operator logs.")
-		return nil
-	}
-	if err != nil {
-		return fmt.Errorf("error retrieving dnsrecords ConfigMap: %w", err)
-	}
-	dnsRecords := operatorutils.Records{Version: operatorutils.Alpha1Version, IP4: map[string][]string{}}
-	if cm.Data != nil && cm.Data[operatorutils.DNSRecordsCMKey] != "" {
-		if err := json.Unmarshal([]byte(cm.Data[operatorutils.DNSRecordsCMKey]), &dnsRecords); err != nil {
-			return err
-		}
-	}
-	update(&dnsRecords)
-	dnsRecordsBs, err := json.Marshal(dnsRecords)
-	if err != nil {
-		return fmt.Errorf("error marshalling DNS records: %w", err)
-	}
-	mak.Set(&cm.Data, operatorutils.DNSRecordsCMKey, string(dnsRecordsBs))
-	return dnsRR.Update(ctx, cm)
-}
-
-// isSvcForFQDNEgressProxy returns true if the Service is a headless Service
-// created for a proxy for a tailscale egress Service configured via
-// tailscale.com/tailnet-fqdn annotation.
-func (dnsRR *dnsRecordsReconciler) isSvcForFQDNEgressProxy(ctx context.Context, svc *corev1.Service) (bool, error) {
-	if !isManagedByType(svc, "svc") {
-		return false, nil
-	}
-	parentName := parentFromObjectLabels(svc)
-	parentSvc := new(corev1.Service)
-	if err := dnsRR.Get(ctx, parentName, parentSvc); apierrors.IsNotFound(err) {
-		return false, nil
-	} else if err != nil {
-		return false, err
-	}
-	annots := parentSvc.Annotations
-	return annots != nil && annots[AnnotationTailnetTargetFQDN] != "", nil
-}

cmd/k8s-operator/dnsrecords_test.go

@@ -1,198 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !plan9
-
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-	"go.uber.org/zap"
-	corev1 "k8s.io/api/core/v1"
-	discoveryv1 "k8s.io/api/discovery/v1"
-	networkingv1 "k8s.io/api/networking/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/types"
-	"sigs.k8s.io/controller-runtime/pkg/client"
-	"sigs.k8s.io/controller-runtime/pkg/client/fake"
-	operatorutils "tailscale.com/k8s-operator"
-	tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
-	"tailscale.com/tstest"
-	"tailscale.com/types/ptr"
-)
-
-func TestDNSRecordsReconciler(t *testing.T) {
-	// Preconfigure a cluster with a DNSConfig
-	dnsConfig := &tsapi.DNSConfig{
-		ObjectMeta: metav1.ObjectMeta{
-			Name: "test",
-		},
-		TypeMeta: metav1.TypeMeta{Kind: "DNSConfig"},
-		Spec: tsapi.DNSConfigSpec{
-			Nameserver: &tsapi.Nameserver{},
-		}}
-	ing := &networkingv1.Ingress{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:      "ts-ingress",
-			Namespace: "test",
-		},
-		Spec: networkingv1.IngressSpec{
-			IngressClassName: ptr.To("tailscale"),
-		},
-		Status: networkingv1.IngressStatus{
-			LoadBalancer: networkingv1.IngressLoadBalancerStatus{
-				Ingress: []networkingv1.IngressLoadBalancerIngress{{
-					Hostname: "cluster.ingress.ts.net"}},
-			},
-		},
-	}
-	cm := &corev1.ConfigMap{ObjectMeta: metav1.ObjectMeta{Name: "dnsrecords", Namespace: "tailscale"}}
-	fc := fake.NewClientBuilder().
-		WithScheme(tsapi.GlobalScheme).
-		WithObjects(cm).
-		WithObjects(dnsConfig).
-		WithObjects(ing).
-		WithStatusSubresource(dnsConfig, ing).
-		Build()
-	zl, err := zap.NewDevelopment()
-	if err != nil {
-		t.Fatal(err)
-	}
-	cl := tstest.NewClock(tstest.ClockOpts{})
-	// Set the ready condition of the DNSConfig
-	mustUpdateStatus[tsapi.DNSConfig](t, fc, "", "test", func(c *tsapi.DNSConfig) {
-		operatorutils.SetDNSConfigCondition(c, tsapi.NameserverReady, metav1.ConditionTrue, reasonNameserverCreated, reasonNameserverCreated, 0, cl, zl.Sugar())
-	})
-	dnsRR := &dnsRecordsReconciler{
-		Client:      fc,
-		logger:      zl.Sugar(),
-		tsNamespace: "tailscale",
-	}
-
-	// 1. DNS record is created for an egress proxy configured via
-	// tailscale.com/tailnet-fqdn annotation
-	egressSvcFQDN := &corev1.Service{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:        "egress-fqdn",
-			Namespace:   "test",
-			Annotations: map[string]string{"tailscale.com/tailnet-fqdn": "foo.bar.ts.net"},
-		},
-		Spec: corev1.ServiceSpec{
-			ExternalName: "unused",
-			Type:         corev1.ServiceTypeExternalName,
-		},
-	}
-	headlessForEgressSvcFQDN := headlessSvcForParent(egressSvcFQDN, "svc") // create the proxy headless Service
-	ep := endpointSliceForService(headlessForEgressSvcFQDN, "10.9.8.7")
-	mustCreate(t, fc, egressSvcFQDN)
-	mustCreate(t, fc, headlessForEgressSvcFQDN)
-	mustCreate(t, fc, ep)
-	expectReconciled(t, dnsRR, "tailscale", "egress-fqdn") // dns-records-reconciler reconcile the headless Service
-	// ConfigMap should now have a record for foo.bar.ts.net -> 10.8.8.7
-	wantHosts := map[string][]string{"foo.bar.ts.net": {"10.9.8.7"}}
-	expectHostsRecords(t, fc, wantHosts)
-
-	// 2. DNS record is updated if tailscale.com/tailnet-fqdn annotation's
-	// value changes
-	mustUpdate(t, fc, "test", "egress-fqdn", func(svc *corev1.Service) {
-		svc.Annotations["tailscale.com/tailnet-fqdn"] = "baz.bar.ts.net"
-	})
-	expectReconciled(t, dnsRR, "tailscale", "egress-fqdn") // dns-records-reconciler reconcile the headless Service
-	wantHosts = map[string][]string{"baz.bar.ts.net": {"10.9.8.7"}}
-	expectHostsRecords(t, fc, wantHosts)
-
-	// 3. DNS record is updated if the IP address of the proxy Pod changes.
-	ep = endpointSliceForService(headlessForEgressSvcFQDN, "10.6.5.4")
-	mustUpdate(t, fc, ep.Namespace, ep.Name, func(ep *discoveryv1.EndpointSlice) {
-		ep.Endpoints[0].Addresses = []string{"10.6.5.4"}
-	})
-	expectReconciled(t, dnsRR, "tailscale", "egress-fqdn") // dns-records-reconciler reconcile the headless Service
-	wantHosts = map[string][]string{"baz.bar.ts.net": {"10.6.5.4"}}
-	expectHostsRecords(t, fc, wantHosts)
-
-	// 4. DNS record is created for an ingress proxy configured via Ingress
-	headlessForIngress := headlessSvcForParent(ing, "ingress")
-	ep = endpointSliceForService(headlessForIngress, "10.9.8.7")
-	mustCreate(t, fc, headlessForIngress)
-	mustCreate(t, fc, ep)
-	expectReconciled(t, dnsRR, "tailscale", "ts-ingress") // dns-records-reconciler should reconcile the headless Service
-	wantHosts["cluster.ingress.ts.net"] = []string{"10.9.8.7"}
-	expectHostsRecords(t, fc, wantHosts)
-
-	// 5. DNS records are updated if Ingress's MagicDNS name changes (i.e users changed spec.tls.hosts[0])
-	t.Log("test case 5")
-	mustUpdateStatus(t, fc, "test", "ts-ingress", func(ing *networkingv1.Ingress) {
-		ing.Status.LoadBalancer.Ingress[0].Hostname = "another.ingress.ts.net"
-	})
-	expectReconciled(t, dnsRR, "tailscale", "ts-ingress") // dns-records-reconciler should reconcile the headless Service
-	delete(wantHosts, "cluster.ingress.ts.net")
-	wantHosts["another.ingress.ts.net"] = []string{"10.9.8.7"}
-	expectHostsRecords(t, fc, wantHosts)
-
-	// 6. DNS records are updated if Ingress proxy's Pod IP changes
-	mustUpdate(t, fc, ep.Namespace, ep.Name, func(ep *discoveryv1.EndpointSlice) {
-		ep.Endpoints[0].Addresses = []string{"7.8.9.10"}
-	})
-	expectReconciled(t, dnsRR, "tailscale", "ts-ingress")
-	wantHosts["another.ingress.ts.net"] = []string{"7.8.9.10"}
-	expectHostsRecords(t, fc, wantHosts)
-}
-
-func headlessSvcForParent(o client.Object, typ string) *corev1.Service {
-	return &corev1.Service{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:      o.GetName(),
-			Namespace: "tailscale",
-			Labels: map[string]string{
-				LabelManaged:         "true",
-				LabelParentName:      o.GetName(),
-				LabelParentNamespace: o.GetNamespace(),
-				LabelParentType:      typ,
-			},
-		},
-		Spec: corev1.ServiceSpec{
-			ClusterIP: "None",
-			Type:      corev1.ServiceTypeClusterIP,
-			Selector:  map[string]string{"foo": "bar"},
-		},
-	}
-}
-
-func endpointSliceForService(svc *corev1.Service, ip string) *discoveryv1.EndpointSlice {
-	return &discoveryv1.EndpointSlice{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:      svc.Name,
-			Namespace: svc.Namespace,
-			Labels:    map[string]string{discoveryv1.LabelServiceName: svc.Name},
-		},
-		Endpoints: []discoveryv1.Endpoint{{
-			Addresses: []string{ip},
-		}},
-	}
-}
-
-func expectHostsRecords(t *testing.T, cl client.Client, wantsHosts map[string][]string) {
-	t.Helper()
-	cm := new(corev1.ConfigMap)
-	if err := cl.Get(context.Background(), types.NamespacedName{Name: "dnsrecords", Namespace: "tailscale"}, cm); err != nil {
-		t.Fatalf("getting dnsconfig ConfigMap: %v", err)
-	}
-	if cm.Data == nil {
-		t.Fatal("dnsconfig ConfigMap has no data")
-	}
-	dnsConfigString, ok := cm.Data[operatorutils.DNSRecordsCMKey]
-	if !ok {
-		t.Fatal("dnsconfig ConfigMap does not contain dnsconfig")
-	}
-	dnsConfig := &operatorutils.Records{}
-	if err := json.Unmarshal([]byte(dnsConfigString), dnsConfig); err != nil {
-		t.Fatalf("unmarshaling dnsconfig: %v", err)
-	}
-	if diff := cmp.Diff(dnsConfig.IP4, wantsHosts); diff != "" {
-		t.Fatalf("unexpected dns config (-got +want):\n%s", diff)
-	}
-}

cmd/k8s-operator/generate/main.go

@@ -22,11 +22,9 @@ const (
 	operatorDeploymentFilesPath   = "cmd/k8s-operator/deploy"
 	connectorCRDPath              = operatorDeploymentFilesPath + "/crds/tailscale.com_connectors.yaml"
 	proxyClassCRDPath             = operatorDeploymentFilesPath + "/crds/tailscale.com_proxyclasses.yaml"
-	dnsConfigCRDPath              = operatorDeploymentFilesPath + "/crds/tailscale.com_dnsconfigs.yaml"
 	helmTemplatesPath             = operatorDeploymentFilesPath + "/chart/templates"
 	connectorCRDHelmTemplatePath  = helmTemplatesPath + "/connector.yaml"
 	proxyClassCRDHelmTemplatePath = helmTemplatesPath + "/proxyclass.yaml"
-	dnsConfigCRDHelmTemplatePath  = helmTemplatesPath + "/dnsconfig.yaml"
 
 	helmConditionalStart = "{{ if .Values.installCRDs -}}\n"
 	helmConditionalEnd   = "{{- end -}}"
@@ -38,10 +36,10 @@ func main() {
 	}
 	repoRoot := "../../"
 	switch os.Args[1] {
-	case "helmcrd": // insert CRDs to Helm templates behind a installCRDs=true conditional check
-		log.Print("Adding CRDs to Helm templates")
+	case "helmcrd": // insert CRD to Helm templates behind a installCRDs=true conditional check
+		log.Print("Adding Connector CRD to Helm templates")
 		if err := generate("./"); err != nil {
-			log.Fatalf("error adding CRDs to Helm templates: %v", err)
+			log.Fatalf("error adding Connector CRD to Helm templates: %v", err)
 		}
 		return
 	case "staticmanifests": // generate static manifests from Helm templates (including the CRD)
@@ -110,7 +108,7 @@ func main() {
 	}
 }
 
-// generate places tailscale.com CRDs (currently Connector, ProxyClass and DNSConfig) into
+// generate places tailscale.com CRDs (currently Connector and ProxyClass) into
 // the Helm chart templates behind .Values.installCRDs=true condition (true by
 // default).
 func generate(baseDir string) error {
@@ -142,9 +140,6 @@ func generate(baseDir string) error {
 	if err := addCRDToHelm(proxyClassCRDPath, proxyClassCRDHelmTemplatePath); err != nil {
 		return fmt.Errorf("error adding ProxyClass CRD to Helm templates: %w", err)
 	}
-	if err := addCRDToHelm(dnsConfigCRDPath, dnsConfigCRDHelmTemplatePath); err != nil {
-		return fmt.Errorf("error adding DNSConfig CRD to Helm templates: %w", err)
-	}
 	return nil
 }
 
@@ -156,8 +151,5 @@ func cleanup(baseDir string) error {
 	if err := os.Remove(filepath.Join(baseDir, proxyClassCRDHelmTemplatePath)); err != nil && !os.IsNotExist(err) {
 		return fmt.Errorf("error cleaning up ProxyClass CRD template: %w", err)
 	}
-	if err := os.Remove(filepath.Join(baseDir, dnsConfigCRDHelmTemplatePath)); err != nil && !os.IsNotExist(err) {
-		return fmt.Errorf("error cleaning up DNSConfig CRD template: %w", err)
-	}
 	return nil
 }

cmd/k8s-operator/generate/main_test.go

@@ -56,9 +56,6 @@ func Test_generate(t *testing.T) {
 	if !strings.Contains(installContentsWithCRD.String(), "name: proxyclasses.tailscale.com") {
 		t.Errorf("ProxyClass CRD not found in default chart install")
 	}
-	if !strings.Contains(installContentsWithCRD.String(), "name: dnsconfigs.tailscale.com") {
-		t.Errorf("DNSConfig CRD not found in default chart install")
-	}
 
 	// Test that CRDs can be excluded from Helm chart install
 	installContentsWithoutCRD := bytes.NewBuffer([]byte{})
@@ -74,7 +71,4 @@ func Test_generate(t *testing.T) {
 	if strings.Contains(installContentsWithoutCRD.String(), "name: connectors.tailscale.com") {
 		t.Errorf("ProxyClass CRD found in chart install that should not contain a CRD")
 	}
-	if strings.Contains(installContentsWithoutCRD.String(), "name: dnsconfigs.tailscale.com") {
-		t.Errorf("DNSConfig CRD found in chart install that should not contain a CRD")
-	}
 }

cmd/k8s-operator/ingress.go

@@ -264,7 +264,7 @@ func (a *IngressReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 		ServeConfig:         sc,
 		Tags:                tags,
 		ChildResourceLabels: crl,
-		ProxyClassName:      proxyClass,
+		ProxyClass:          proxyClass,
 	}
 
 	if val := ing.GetAnnotations()[AnnotationExperimentalForwardClusterTrafficViaL7IngresProxy]; val == "true" {

cmd/k8s-operator/ingress_test.go

@@ -100,9 +100,9 @@ func TestTailscaleIngress(t *testing.T) {
 	}
 	opts.serveConfig = serveConfig
 
-	expectEqual(t, fc, expectedSecret(t, fc, opts), nil)
-	expectEqual(t, fc, expectedHeadlessService(shortName, "ingress"), nil)
-	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSecret(t, opts))
+	expectEqual(t, fc, expectedHeadlessService(shortName, "ingress"))
+	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts))
 
 	// 2. Ingress status gets updated with ingress proxy's MagicDNS name
 	// once that becomes available.
@@ -117,7 +117,7 @@ func TestTailscaleIngress(t *testing.T) {
 			{Hostname: "foo.tailnetxyz.ts.net", Ports: []networkingv1.IngressPortStatus{{Port: 443, Protocol: "TCP"}}},
 		},
 	}
-	expectEqual(t, fc, ing, nil)
+	expectEqual(t, fc, ing)
 
 	// 3. Resources get created for Ingress that should allow forwarding
 	// cluster traffic
@@ -126,7 +126,7 @@ func TestTailscaleIngress(t *testing.T) {
 	})
 	opts.shouldEnableForwardingClusterTrafficViaIngress = true
 	expectReconciled(t, ingR, "default", "test")
-	expectEqual(t, fc, expectedSTS(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTS(t, fc, opts))
 
 	// 4. Resources get cleaned up when Ingress class is unset
 	mustUpdate(t, fc, "default", "test", func(ing *networkingv1.Ingress) {
@@ -231,9 +231,9 @@ func TestTailscaleIngressWithProxyClass(t *testing.T) {
 	}
 	opts.serveConfig = serveConfig
 
-	expectEqual(t, fc, expectedSecret(t, fc, opts), nil)
-	expectEqual(t, fc, expectedHeadlessService(shortName, "ingress"), nil)
-	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSecret(t, opts))
+	expectEqual(t, fc, expectedHeadlessService(shortName, "ingress"))
+	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts))
 
 	// 2. Ingress is updated to specify a ProxyClass, ProxyClass is not yet
 	// ready, so proxy resource configuration does not change.
@@ -241,22 +241,22 @@ func TestTailscaleIngressWithProxyClass(t *testing.T) {
 		mak.Set(&ing.ObjectMeta.Labels, LabelProxyClass, "custom-metadata")
 	})
 	expectReconciled(t, ingR, "default", "test")
-	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts))
 
 	// 3. ProxyClass is set to Ready by proxy-class reconciler. Ingress get
 	// reconciled and configuration from the ProxyClass is applied to the
 	// created proxy resources.
 	mustUpdateStatus(t, fc, "", "custom-metadata", func(pc *tsapi.ProxyClass) {
 		pc.Status = tsapi.ProxyClassStatus{
-			Conditions: []metav1.Condition{{
+			Conditions: []tsapi.ConnectorCondition{{
 				Status:             metav1.ConditionTrue,
-				Type:               string(tsapi.ProxyClassready),
+				Type:               tsapi.ProxyClassready,
 				ObservedGeneration: pc.Generation,
 			}}}
 	})
 	expectReconciled(t, ingR, "default", "test")
 	opts.proxyClass = pc.Name
-	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts))
 
 	// 4. tailscale.com/proxy-class label is removed from the Ingress, the
 	// Ingress gets reconciled and the custom ProxyClass configuration is
@@ -266,5 +266,5 @@ func TestTailscaleIngressWithProxyClass(t *testing.T) {
 	})
 	expectReconciled(t, ingR, "default", "test")
 	opts.proxyClass = ""
-	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts), removeHashAnnotation)
+	expectEqual(t, fc, expectedSTSUserspace(t, fc, opts))
 }

cmd/k8s-operator/nameserver.go

@@ -1,283 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !plan9
-
-package main
-
-import (
-	"context"
-	"fmt"
-	"slices"
-	"sync"
-
-	_ "embed"
-
-	"github.com/pkg/errors"
-	"go.uber.org/zap"
-	xslices "golang.org/x/exp/slices"
-	appsv1 "k8s.io/api/apps/v1"
-	corev1 "k8s.io/api/core/v1"
-	apiequality "k8s.io/apimachinery/pkg/api/equality"
-	apierrors "k8s.io/apimachinery/pkg/api/errors"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/client-go/tools/record"
-	"sigs.k8s.io/controller-runtime/pkg/client"
-	"sigs.k8s.io/controller-runtime/pkg/reconcile"
-	"sigs.k8s.io/yaml"
-	tsoperator "tailscale.com/k8s-operator"
-	tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
-	"tailscale.com/tstime"
-	"tailscale.com/util/clientmetric"
-	"tailscale.com/util/set"
-)
-
-const (
-	reasonNameserverCreationFailed  = "NameserverCreationFailed"
-	reasonMultipleDNSConfigsPresent = "MultipleDNSConfigsPresent"
-
-	reasonNameserverCreated = "NameserverCreated"
-
-	messageNameserverCreationFailed  = "Failed creating nameserver resources: %v"
-	messageMultipleDNSConfigsPresent = "Multiple DNSConfig resources found in cluster. Please ensure no more than one is present."
-
-	defaultNameserverImageRepo = "tailscale/k8s-nameserver"
-	// TODO (irbekrm): once we start publishing nameserver images for stable
-	// track, replace 'unstable' here with the version of this operator
-	// instance.
-	defaultNameserverImageTag = "unstable"
-)
-
-// NameserverReconciler knows how to create nameserver resources in cluster in
-// response to users applying DNSConfig.
-type NameserverReconciler struct {
-	client.Client
-	logger      *zap.SugaredLogger
-	recorder    record.EventRecorder
-	clock       tstime.Clock
-	tsNamespace string
-
-	mu                 sync.Mutex           // protects following
-	managedNameservers set.Slice[types.UID] // one or none
-}
-
-var (
-	gaugeNameserverResources = clientmetric.NewGauge("k8s_nameserver_resources")
-)
-
-func (a *NameserverReconciler) Reconcile(ctx context.Context, req reconcile.Request) (res reconcile.Result, err error) {
-	logger := a.logger.With("dnsConfig", req.Name)
-	logger.Debugf("starting reconcile")
-	defer logger.Debugf("reconcile finished")
-
-	var dnsCfg tsapi.DNSConfig
-	err = a.Get(ctx, req.NamespacedName, &dnsCfg)
-	if apierrors.IsNotFound(err) {
-		// Request object not found, could have been deleted after reconcile request.
-		logger.Debugf("dnsconfig not found, assuming it was deleted")
-		return reconcile.Result{}, nil
-	} else if err != nil {
-		return reconcile.Result{}, fmt.Errorf("failed to get dnsconfig: %w", err)
-	}
-	if !dnsCfg.DeletionTimestamp.IsZero() {
-		ix := xslices.Index(dnsCfg.Finalizers, FinalizerName)
-		if ix < 0 {
-			logger.Debugf("no finalizer, nothing to do")
-			return reconcile.Result{}, nil
-		}
-		logger.Info("Cleaning up DNSConfig resources")
-		if err := a.maybeCleanup(ctx, &dnsCfg, logger); err != nil {
-			logger.Errorf("error cleaning up reconciler resource: %v", err)
-			return res, err
-		}
-		dnsCfg.Finalizers = append(dnsCfg.Finalizers[:ix], dnsCfg.Finalizers[ix+1:]...)
-		if err := a.Update(ctx, &dnsCfg); err != nil {
-			logger.Errorf("error removing finalizer: %v", err)
-			return reconcile.Result{}, err
-		}
-		logger.Infof("Nameserver resources cleaned up")
-		return reconcile.Result{}, nil
-	}
-
-	oldCnStatus := dnsCfg.Status.DeepCopy()
-	setStatus := func(dnsCfg *tsapi.DNSConfig, conditionType tsapi.ConditionType, status metav1.ConditionStatus, reason, message string) (reconcile.Result, error) {
-		tsoperator.SetDNSConfigCondition(dnsCfg, tsapi.NameserverReady, status, reason, message, dnsCfg.Generation, a.clock, logger)
-		if !apiequality.Semantic.DeepEqual(oldCnStatus, dnsCfg.Status) {
-			// An error encountered here should get returned by the Reconcile function.
-			if updateErr := a.Client.Status().Update(ctx, dnsCfg); updateErr != nil {
-				err = errors.Wrap(err, updateErr.Error())
-			}
-		}
-		return res, err
-	}
-	var dnsCfgs tsapi.DNSConfigList
-	if err := a.List(ctx, &dnsCfgs); err != nil {
-		return res, fmt.Errorf("error listing DNSConfigs: %w", err)
-	}
-	if len(dnsCfgs.Items) > 1 { // enforce DNSConfig to be a singleton
-		msg := "invalid cluster configuration: more than one tailscale.com/dnsconfigs found. Please ensure that no more than one is created."
-		logger.Error(msg)
-		a.recorder.Event(&dnsCfg, corev1.EventTypeWarning, reasonMultipleDNSConfigsPresent, messageMultipleDNSConfigsPresent)
-		setStatus(&dnsCfg, tsapi.NameserverReady, metav1.ConditionFalse, reasonMultipleDNSConfigsPresent, messageMultipleDNSConfigsPresent)
-	}
-
-	if !slices.Contains(dnsCfg.Finalizers, FinalizerName) {
-		logger.Infof("ensuring nameserver resources")
-		dnsCfg.Finalizers = append(dnsCfg.Finalizers, FinalizerName)
-		if err := a.Update(ctx, &dnsCfg); err != nil {
-			msg := fmt.Sprintf(messageNameserverCreationFailed, err)
-			logger.Error(msg)
-			return setStatus(&dnsCfg, tsapi.NameserverReady, metav1.ConditionFalse, reasonNameserverCreationFailed, msg)
-		}
-	}
-	if err := a.maybeProvision(ctx, &dnsCfg, logger); err != nil {
-		return reconcile.Result{}, fmt.Errorf("error provisioning nameserver resources: %w", err)
-	}
-
-	a.mu.Lock()
-	a.managedNameservers.Add(dnsCfg.UID)
-	a.mu.Unlock()
-	gaugeNameserverResources.Set(int64(a.managedNameservers.Len()))
-
-	svc := &corev1.Service{
-		ObjectMeta: metav1.ObjectMeta{Name: "nameserver", Namespace: a.tsNamespace},
-	}
-	if err := a.Client.Get(ctx, client.ObjectKeyFromObject(svc), svc); err != nil {
-		return res, fmt.Errorf("error getting Service: %w", err)
-	}
-	if ip := svc.Spec.ClusterIP; ip != "" && ip != "None" {
-		dnsCfg.Status.Nameserver = &tsapi.NameserverStatus{
-			IP: ip,
-		}
-		return setStatus(&dnsCfg, tsapi.NameserverReady, metav1.ConditionTrue, reasonNameserverCreated, reasonNameserverCreated)
-	}
-	logger.Info("nameserver Service does not have an IP address allocated, waiting...")
-	return reconcile.Result{}, nil
-}
-
-func nameserverResourceLabels(name, namespace string) map[string]string {
-	labels := childResourceLabels(name, namespace, "nameserver")
-	labels["app.kubernetes.io/name"] = "tailscale"
-	labels["app.kubernetes.io/component"] = "nameserver"
-	return labels
-}
-
-func (a *NameserverReconciler) maybeProvision(ctx context.Context, tsDNSCfg *tsapi.DNSConfig, logger *zap.SugaredLogger) error {
-	labels := nameserverResourceLabels(tsDNSCfg.Name, a.tsNamespace)
-	dCfg := &deployConfig{
-		ownerRefs: []metav1.OwnerReference{*metav1.NewControllerRef(tsDNSCfg, tsapi.SchemeGroupVersion.WithKind("DNSConfig"))},
-		namespace: a.tsNamespace,
-		labels:    labels,
-		imageRepo: defaultNameserverImageRepo,
-		imageTag:  defaultNameserverImageTag,
-	}
-	if tsDNSCfg.Spec.Nameserver.Image != nil && tsDNSCfg.Spec.Nameserver.Image.Repo != "" {
-		dCfg.imageRepo = tsDNSCfg.Spec.Nameserver.Image.Repo
-	}
-	if tsDNSCfg.Spec.Nameserver.Image != nil && tsDNSCfg.Spec.Nameserver.Image.Tag != "" {
-		dCfg.imageTag = tsDNSCfg.Spec.Nameserver.Image.Tag
-	}
-	for _, deployable := range []deployable{saDeployable, deployDeployable, svcDeployable, cmDeployable} {
-		if err := deployable.updateObj(ctx, dCfg, a.Client); err != nil {
-			return fmt.Errorf("error reconciling %s: %w", deployable.kind, err)
-		}
-	}
-	return nil
-}
-
-// maybeCleanup removes DNSConfig from being tracked. The cluster resources
-// created, will be automatically garbage collected as they are owned by the
-// DNSConfig.
-func (a *NameserverReconciler) maybeCleanup(ctx context.Context, dnsCfg *tsapi.DNSConfig, logger *zap.SugaredLogger) error {
-	a.mu.Lock()
-	a.managedNameservers.Remove(dnsCfg.UID)
-	a.mu.Unlock()
-	gaugeNameserverResources.Set(int64(a.managedNameservers.Len()))
-	return nil
-}
-
-type deployable struct {
-	kind      string
-	updateObj func(context.Context, *deployConfig, client.Client) error
-}
-
-type deployConfig struct {
-	imageRepo string
-	imageTag  string
-	labels    map[string]string
-	ownerRefs []metav1.OwnerReference
-	namespace string
-}
-
-var (
-	//go:embed deploy/manifests/nameserver/cm.yaml
-	cmYaml []byte
-	//go:embed deploy/manifests/nameserver/deploy.yaml
-	deployYaml []byte
-	//go:embed deploy/manifests/nameserver/sa.yaml
-	saYaml []byte
-	//go:embed deploy/manifests/nameserver/svc.yaml
-	svcYaml []byte
-
-	deployDeployable = deployable{
-		kind: "Deployment",
-		updateObj: func(ctx context.Context, cfg *deployConfig, kubeClient client.Client) error {
-			d := new(appsv1.Deployment)
-			if err := yaml.Unmarshal(deployYaml, &d); err != nil {
-				return fmt.Errorf("error unmarshalling Deployment yaml: %w", err)
-			}
-			d.Spec.Template.Spec.Containers[0].Image = fmt.Sprintf("%s:%s", cfg.imageRepo, cfg.imageTag)
-			d.ObjectMeta.Namespace = cfg.namespace
-			d.ObjectMeta.Labels = cfg.labels
-			d.ObjectMeta.OwnerReferences = cfg.ownerRefs
-			updateF := func(oldD *appsv1.Deployment) {
-				oldD.Spec = d.Spec
-			}
-			_, err := createOrUpdate[appsv1.Deployment](ctx, kubeClient, cfg.namespace, d, updateF)
-			return err
-		},
-	}
-	saDeployable = deployable{
-		kind: "ServiceAccount",
-		updateObj: func(ctx context.Context, cfg *deployConfig, kubeClient client.Client) error {
-			sa := new(corev1.ServiceAccount)
-			if err := yaml.Unmarshal(saYaml, &sa); err != nil {
-				return fmt.Errorf("error unmarshalling ServiceAccount yaml: %w", err)
-			}
-			sa.ObjectMeta.Labels = cfg.labels
-			sa.ObjectMeta.OwnerReferences = cfg.ownerRefs
-			sa.ObjectMeta.Namespace = cfg.namespace
-			_, err := createOrUpdate(ctx, kubeClient, cfg.namespace, sa, func(*corev1.ServiceAccount) {})
-			return err
-		},
-	}
-	svcDeployable = deployable{
-		kind: "Service",
-		updateObj: func(ctx context.Context, cfg *deployConfig, kubeClient client.Client) error {
-			svc := new(corev1.Service)
-			if err := yaml.Unmarshal(svcYaml, &svc); err != nil {
-				return fmt.Errorf("error unmarshalling Service yaml: %w", err)
-			}
-			svc.ObjectMeta.Labels = cfg.labels
-			svc.ObjectMeta.OwnerReferences = cfg.ownerRefs
-			svc.ObjectMeta.Namespace = cfg.namespace
-			_, err := createOrUpdate[corev1.Service](ctx, kubeClient, cfg.namespace, svc, func(*corev1.Service) {})
-			return err
-		},
-	}
-	cmDeployable = deployable{
-		kind: "ConfigMap",
-		updateObj: func(ctx context.Context, cfg *deployConfig, kubeClient client.Client) error {
-			cm := new(corev1.ConfigMap)
-			if err := yaml.Unmarshal(cmYaml, &cm); err != nil {
-				return fmt.Errorf("error unmarshalling ConfigMap yaml: %w", err)
-			}
-			cm.ObjectMeta.Labels = cfg.labels
-			cm.ObjectMeta.OwnerReferences = cfg.ownerRefs
-			cm.ObjectMeta.Namespace = cfg.namespace
-			_, err := createOrUpdate[corev1.ConfigMap](ctx, kubeClient, cfg.namespace, cm, func(cm *corev1.ConfigMap) {})
-			return err
-		},
-	}
-)

cmd/k8s-operator/nameserver_test.go

@@ -1,127 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !plan9
-
-// tailscale-operator provides a way to expose services running in a Kubernetes
-// cluster to your Tailnet and to make Tailscale nodes available to cluster
-// workloads
-package main
-
-import (
-	"encoding/json"
-	"testing"
-	"time"
-
-	"go.uber.org/zap"
-	appsv1 "k8s.io/api/apps/v1"
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/controller-runtime/pkg/client/fake"
-	"sigs.k8s.io/yaml"
-	operatorutils "tailscale.com/k8s-operator"
-	tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
-	"tailscale.com/tstest"
-	"tailscale.com/util/mak"
-)
-
-func TestNameserverReconciler(t *testing.T) {
-	dnsCfg := &tsapi.DNSConfig{
-		TypeMeta: metav1.TypeMeta{Kind: "DNSConfig", APIVersion: "tailscale.com/v1alpha1"},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: "test",
-		},
-		Spec: tsapi.DNSConfigSpec{
-			Nameserver: &tsapi.Nameserver{
-				Image: &tsapi.Image{
-					Repo: "test",
-					Tag:  "v0.0.1",
-				},
-			},
-		},
-	}
-
-	fc := fake.NewClientBuilder().
-		WithScheme(tsapi.GlobalScheme).
-		WithObjects(dnsCfg).
-		WithStatusSubresource(dnsCfg).
-		Build()
-	zl, err := zap.NewDevelopment()
-	if err != nil {
-		t.Fatal(err)
-	}
-	cl := tstest.NewClock(tstest.ClockOpts{})
-	nr := &NameserverReconciler{
-		Client:      fc,
-		clock:       cl,
-		logger:      zl.Sugar(),
-		tsNamespace: "tailscale",
-	}
-	expectReconciled(t, nr, "", "test")
-	// Verify that nameserver Deployment has been created and has the expected fields.
-	wantsDeploy := &appsv1.Deployment{ObjectMeta: metav1.ObjectMeta{Name: "nameserver", Namespace: "tailscale"}, TypeMeta: metav1.TypeMeta{Kind: "Deployment", APIVersion: appsv1.SchemeGroupVersion.Identifier()}}
-	if err := yaml.Unmarshal(deployYaml, wantsDeploy); err != nil {
-		t.Fatalf("unmarshalling yaml: %v", err)
-	}
-	dnsCfgOwnerRef := metav1.NewControllerRef(dnsCfg, tsapi.SchemeGroupVersion.WithKind("DNSConfig"))
-	wantsDeploy.OwnerReferences = []metav1.OwnerReference{*dnsCfgOwnerRef}
-	wantsDeploy.Spec.Template.Spec.Containers[0].Image = "test:v0.0.1"
-	wantsDeploy.Namespace = "tailscale"
-	labels := nameserverResourceLabels("test", "tailscale")
-	wantsDeploy.ObjectMeta.Labels = labels
-	expectEqual(t, fc, wantsDeploy, nil)
-
-	// Verify that DNSConfig advertizes the nameserver's Service IP address,
-	// has the ready status condition and tailscale finalizer.
-	mustUpdate(t, fc, "tailscale", "nameserver", func(svc *corev1.Service) {
-		svc.Spec.ClusterIP = "1.2.3.4"
-	})
-	expectReconciled(t, nr, "", "test")
-	dnsCfg.Status.Nameserver = &tsapi.NameserverStatus{
-		IP: "1.2.3.4",
-	}
-	dnsCfg.Finalizers = []string{FinalizerName}
-	dnsCfg.Status.Conditions = append(dnsCfg.Status.Conditions, metav1.Condition{
-		Type:               string(tsapi.NameserverReady),
-		Status:             metav1.ConditionTrue,
-		Reason:             reasonNameserverCreated,
-		Message:            reasonNameserverCreated,
-		LastTransitionTime: metav1.Time{Time: cl.Now().Truncate(time.Second)},
-	})
-	expectEqual(t, fc, dnsCfg, nil)
-
-	// // Verify that nameserver image gets updated to match DNSConfig spec.
-	mustUpdate(t, fc, "", "test", func(dnsCfg *tsapi.DNSConfig) {
-		dnsCfg.Spec.Nameserver.Image.Tag = "v0.0.2"
-	})
-	expectReconciled(t, nr, "", "test")
-	wantsDeploy.Spec.Template.Spec.Containers[0].Image = "test:v0.0.2"
-	expectEqual(t, fc, wantsDeploy, nil)
-
-	// Verify that when another actor sets ConfigMap data, it does not get
-	// overwritten by nameserver reconciler.
-	dnsRecords := &operatorutils.Records{Version: "v1alpha1", IP4: map[string][]string{"foo.ts.net": {"1.2.3.4"}}}
-	bs, err := json.Marshal(dnsRecords)
-	if err != nil {
-		t.Fatalf("error marshalling ConfigMap contents: %v", err)
-	}
-	mustUpdate(t, fc, "tailscale", "dnsrecords", func(cm *corev1.ConfigMap) {
-		mak.Set(&cm.Data, "records.json", string(bs))
-	})
-	expectReconciled(t, nr, "", "test")
-	wantCm := &corev1.ConfigMap{ObjectMeta: metav1.ObjectMeta{Name: "dnsrecords",
-		Namespace: "tailscale", Labels: labels, OwnerReferences: []metav1.OwnerReference{*dnsCfgOwnerRef}},
-		TypeMeta: metav1.TypeMeta{Kind: "ConfigMap", APIVersion: "v1"},
-		Data:     map[string]string{"records.json": string(bs)},
-	}
-	expectEqual(t, fc, wantCm, nil)
-
-	// Verify that if dnsconfig.spec.nameserver.image.{repo,tag} are unset,
-	// the nameserver image defaults to tailscale/k8s-nameserver:unstable.
-	mustUpdate(t, fc, "", "test", func(dnsCfg *tsapi.DNSConfig) {
-		dnsCfg.Spec.Nameserver.Image = nil
-	})
-	expectReconciled(t, nr, "", "test")
-	wantsDeploy.Spec.Template.Spec.Containers[0].Image = "tailscale/k8s-nameserver:unstable"
-	expectEqual(t, fc, wantsDeploy, nil)
-}

cmd/k8s-operator/operator.go

@@ -20,7 +20,6 @@ import (
 	"golang.org/x/oauth2/clientcredentials"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
-	discoveryv1 "k8s.io/api/discovery/v1"
 	networkingv1 "k8s.io/api/networking/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/rest"
@@ -45,14 +44,11 @@ import (
 	"tailscale.com/version"
 )
 
-// Generate Connector and ProxyClass CustomResourceDefinition yamls from their Go types.
-//go:generate go run sigs.k8s.io/controller-tools/cmd/controller-gen crd schemapatch:manifests=./deploy/crds output:dir=./deploy/crds paths=../../k8s-operator/apis/...
-
 // Generate static manifests for deploying Tailscale operator on Kubernetes from the operator's Helm chart.
 //go:generate go run tailscale.com/cmd/k8s-operator/generate staticmanifests
 
-// Generate CRD docs from the yamls
-//go:generate go run fybrik.io/crdoc --resources=./deploy/crds --output=../../k8s-operator/api.md
+// Generate Connector CustomResourceDefinition yaml from its Go types.
+//go:generate go run sigs.k8s.io/controller-tools/cmd/controller-gen crd schemapatch:manifests=./deploy/crds output:dir=./deploy/crds paths=../../k8s-operator/apis/...
 
 func main() {
 	// Required to use our client API. We're fine with the instability since the
@@ -60,13 +56,12 @@ func main() {
 	tailscale.I_Acknowledge_This_API_Is_Unstable = true
 
 	var (
-		tsNamespace           = defaultEnv("OPERATOR_NAMESPACE", "")
-		tslogging             = defaultEnv("OPERATOR_LOGGING", "info")
-		image                 = defaultEnv("PROXY_IMAGE", "tailscale/tailscale:latest")
-		priorityClassName     = defaultEnv("PROXY_PRIORITY_CLASS_NAME", "")
-		tags                  = defaultEnv("PROXY_TAGS", "tag:k8s")
-		tsFirewallMode        = defaultEnv("PROXY_FIREWALL_MODE", "")
-		isDefaultLoadBalancer = defaultBool("OPERATOR_DEFAULT_LOAD_BALANCER", false)
+		tsNamespace       = defaultEnv("OPERATOR_NAMESPACE", "")
+		tslogging         = defaultEnv("OPERATOR_LOGGING", "info")
+		image             = defaultEnv("PROXY_IMAGE", "tailscale/tailscale:latest")
+		priorityClassName = defaultEnv("PROXY_PRIORITY_CLASS_NAME", "")
+		tags              = defaultEnv("PROXY_TAGS", "tag:k8s")
+		tsFirewallMode    = defaultEnv("PROXY_FIREWALL_MODE", "")
 	)
 
 	var opts []kzap.Opts
@@ -95,19 +90,9 @@ func main() {
 	defer s.Close()
 	restConfig := config.GetConfigOrDie()
 	maybeLaunchAPIServerProxy(zlog, restConfig, s, mode)
-	rOpts := reconcilerOpts{
-		log:                           zlog,
-		tsServer:                      s,
-		tsClient:                      tsClient,
-		tailscaleNamespace:            tsNamespace,
-		restConfig:                    restConfig,
-		proxyImage:                    image,
-		proxyPriorityClassName:        priorityClassName,
-		proxyActAsDefaultLoadBalancer: isDefaultLoadBalancer,
-		proxyTags:                     tags,
-		proxyFirewallMode:             tsFirewallMode,
-	}
-	runReconcilers(rOpts)
+	// TODO (irbekrm): gather the reconciler options into an opts struct
+	// rather than passing a million of them in one by one.
+	runReconcilers(zlog, s, tsNamespace, restConfig, tsClient, image, priorityClassName, tags, tsFirewallMode)
 }
 
 // initTSNet initializes the tsnet.Server and logs in to Tailscale. It uses the
@@ -215,8 +200,11 @@ waitOnline:
 
 // runReconcilers starts the controller-runtime manager and registers the
 // ServiceReconciler. It blocks forever.
-func runReconcilers(opts reconcilerOpts) {
-	startlog := opts.log.Named("startReconcilers")
+func runReconcilers(zlog *zap.SugaredLogger, s *tsnet.Server, tsNamespace string, restConfig *rest.Config, tsClient *tailscale.Client, image, priorityClassName, tags, tsFirewallMode string) {
+	var (
+		isDefaultLoadBalancer = defaultBool("OPERATOR_DEFAULT_LOAD_BALANCER", false)
+	)
+	startlog := zlog.Named("startReconcilers")
 	// For secrets and statefulsets, we only get permission to touch the objects
 	// in the controller's own namespace. This cannot be expressed by
 	// .Watches(...) below, instead you have to add a per-type field selector to
@@ -224,7 +212,7 @@ func runReconcilers(opts reconcilerOpts) {
 	// implicitly filter what parts of the world the builder code gets to see at
 	// all.
 	nsFilter := cache.ByObject{
-		Field: client.InNamespace(opts.tailscaleNamespace).AsSelector(),
+		Field: client.InNamespace(tsNamespace).AsSelector(),
 	}
 	mgrOpts := manager.Options{
 		// TODO (irbekrm): stricter filtering what we watch/cache/call
@@ -232,37 +220,33 @@ func runReconcilers(opts reconcilerOpts) {
 		// resources that we GET via the controller manager's client.
 		Cache: cache.Options{
 			ByObject: map[client.Object]cache.ByObject{
-				&corev1.Secret{}:             nsFilter,
-				&corev1.ServiceAccount{}:     nsFilter,
-				&corev1.ConfigMap{}:          nsFilter,
-				&appsv1.StatefulSet{}:        nsFilter,
-				&appsv1.Deployment{}:         nsFilter,
-				&discoveryv1.EndpointSlice{}: nsFilter,
+				&corev1.Secret{}:      nsFilter,
+				&appsv1.StatefulSet{}: nsFilter,
 			},
 		},
 		Scheme: tsapi.GlobalScheme,
 	}
-	mgr, err := manager.New(opts.restConfig, mgrOpts)
+	mgr, err := manager.New(restConfig, mgrOpts)
 	if err != nil {
 		startlog.Fatalf("could not create manager: %v", err)
 	}
 
 	svcFilter := handler.EnqueueRequestsFromMapFunc(serviceHandler)
 	svcChildFilter := handler.EnqueueRequestsFromMapFunc(managedResourceHandlerForType("svc"))
-	// If a ProxyClass changes, enqueue all Services labeled with that
+	// If a ProxyClassChanges, enqueue all Services labeled with that
 	// ProxyClass's name.
 	proxyClassFilterForSvc := handler.EnqueueRequestsFromMapFunc(proxyClassHandlerForSvc(mgr.GetClient(), startlog))
 
 	eventRecorder := mgr.GetEventRecorderFor("tailscale-operator")
 	ssr := &tailscaleSTSReconciler{
 		Client:                 mgr.GetClient(),
-		tsnetServer:            opts.tsServer,
-		tsClient:               opts.tsClient,
-		defaultTags:            strings.Split(opts.proxyTags, ","),
-		operatorNamespace:      opts.tailscaleNamespace,
-		proxyImage:             opts.proxyImage,
-		proxyPriorityClassName: opts.proxyPriorityClassName,
-		tsFirewallMode:         opts.proxyFirewallMode,
+		tsnetServer:            s,
+		tsClient:               tsClient,
+		defaultTags:            strings.Split(tags, ","),
+		operatorNamespace:      tsNamespace,
+		proxyImage:             image,
+		proxyPriorityClassName: priorityClassName,
+		tsFirewallMode:         tsFirewallMode,
 	}
 	err = builder.
 		ControllerManagedBy(mgr).
@@ -274,11 +258,9 @@ func runReconcilers(opts reconcilerOpts) {
 		Complete(&ServiceReconciler{
 			ssr:                   ssr,
 			Client:                mgr.GetClient(),
-			logger:                opts.log.Named("service-reconciler"),
-			isDefaultLoadBalancer: opts.proxyActAsDefaultLoadBalancer,
+			logger:                zlog.Named("service-reconciler"),
+			isDefaultLoadBalancer: isDefaultLoadBalancer,
 			recorder:              eventRecorder,
-			tsNamespace:           opts.tailscaleNamespace,
-			clock:                 tstime.DefaultClock{},
 		})
 	if err != nil {
 		startlog.Fatalf("could not create service reconciler: %v", err)
@@ -287,20 +269,18 @@ func runReconcilers(opts reconcilerOpts) {
 	// If a ProxyClassChanges, enqueue all Ingresses labeled with that
 	// ProxyClass's name.
 	proxyClassFilterForIngress := handler.EnqueueRequestsFromMapFunc(proxyClassHandlerForIngress(mgr.GetClient(), startlog))
-	// Enque Ingress if a managed Service or backend Service associated with a tailscale Ingress changes.
-	svcHandlerForIngress := handler.EnqueueRequestsFromMapFunc(serviceHandlerForIngress(mgr.GetClient(), startlog))
 	err = builder.
 		ControllerManagedBy(mgr).
 		For(&networkingv1.Ingress{}).
 		Watches(&appsv1.StatefulSet{}, ingressChildFilter).
 		Watches(&corev1.Secret{}, ingressChildFilter).
-		Watches(&corev1.Service{}, svcHandlerForIngress).
+		Watches(&corev1.Service{}, ingressChildFilter).
 		Watches(&tsapi.ProxyClass{}, proxyClassFilterForIngress).
 		Complete(&IngressReconciler{
 			ssr:      ssr,
 			recorder: eventRecorder,
 			Client:   mgr.GetClient(),
-			logger:   opts.log.Named("ingress-reconciler"),
+			logger:   zlog.Named("ingress-reconciler"),
 		})
 	if err != nil {
 		startlog.Fatalf("could not create ingress reconciler: %v", err)
@@ -319,201 +299,29 @@ func runReconcilers(opts reconcilerOpts) {
 			ssr:      ssr,
 			recorder: eventRecorder,
 			Client:   mgr.GetClient(),
-			logger:   opts.log.Named("connector-reconciler"),
+			logger:   zlog.Named("connector-reconciler"),
 			clock:    tstime.DefaultClock{},
 		})
 	if err != nil {
-		startlog.Fatalf("could not create connector reconciler: %v", err)
-	}
-	// TODO (irbekrm): switch to metadata-only watches for resources whose
-	// spec we don't need to inspect to reduce memory consumption.
-	// https://github.com/kubernetes-sigs/controller-runtime/issues/1159
-	nameserverFilter := handler.EnqueueRequestsFromMapFunc(managedResourceHandlerForType("nameserver"))
-	err = builder.ControllerManagedBy(mgr).
-		For(&tsapi.DNSConfig{}).
-		Watches(&appsv1.Deployment{}, nameserverFilter).
-		Watches(&corev1.ConfigMap{}, nameserverFilter).
-		Watches(&corev1.Service{}, nameserverFilter).
-		Watches(&corev1.ServiceAccount{}, nameserverFilter).
-		Complete(&NameserverReconciler{
-			recorder:    eventRecorder,
-			tsNamespace: opts.tailscaleNamespace,
-			Client:      mgr.GetClient(),
-			logger:      opts.log.Named("nameserver-reconciler"),
-			clock:       tstime.DefaultClock{},
-		})
-	if err != nil {
-		startlog.Fatalf("could not create nameserver reconciler: %v", err)
+		startlog.Fatal("could not create connector reconciler: %v", err)
 	}
 	err = builder.ControllerManagedBy(mgr).
 		For(&tsapi.ProxyClass{}).
 		Complete(&ProxyClassReconciler{
 			Client:   mgr.GetClient(),
 			recorder: eventRecorder,
-			logger:   opts.log.Named("proxyclass-reconciler"),
+			logger:   zlog.Named("proxyclass-reconciler"),
 			clock:    tstime.DefaultClock{},
 		})
 	if err != nil {
 		startlog.Fatal("could not create proxyclass reconciler: %v", err)
 	}
-	logger := startlog.Named("dns-records-reconciler-event-handlers")
-	// On EndpointSlice events, if it is an EndpointSlice for an
-	// ingress/egress proxy headless Service, reconcile the headless
-	// Service.
-	dnsRREpsOpts := handler.EnqueueRequestsFromMapFunc(dnsRecordsReconcilerEndpointSliceHandler)
-	// On DNSConfig changes, reconcile all headless Services for
-	// ingress/egress proxies in operator namespace.
-	dnsRRDNSConfigOpts := handler.EnqueueRequestsFromMapFunc(enqueueAllIngressEgressProxySvcsInNS(opts.tailscaleNamespace, mgr.GetClient(), logger))
-	// On Service events, if it is an ingress/egress proxy headless Service, reconcile it.
-	dnsRRServiceOpts := handler.EnqueueRequestsFromMapFunc(dnsRecordsReconcilerServiceHandler)
-	// On Ingress events, if it is a tailscale Ingress or if tailscale is the default ingress controller, reconcile the proxy
-	// headless Service.
-	dnsRRIngressOpts := handler.EnqueueRequestsFromMapFunc(dnsRecordsReconcilerIngressHandler(opts.tailscaleNamespace, opts.proxyActAsDefaultLoadBalancer, mgr.GetClient(), logger))
-	err = builder.ControllerManagedBy(mgr).
-		Named("dns-records-reconciler").
-		Watches(&corev1.Service{}, dnsRRServiceOpts).
-		Watches(&networkingv1.Ingress{}, dnsRRIngressOpts).
-		Watches(&discoveryv1.EndpointSlice{}, dnsRREpsOpts).
-		Watches(&tsapi.DNSConfig{}, dnsRRDNSConfigOpts).
-		Complete(&dnsRecordsReconciler{
-			Client:                mgr.GetClient(),
-			tsNamespace:           opts.tailscaleNamespace,
-			logger:                opts.log.Named("dns-records-reconciler"),
-			isDefaultLoadBalancer: opts.proxyActAsDefaultLoadBalancer,
-		})
-	if err != nil {
-		startlog.Fatalf("could not create DNS records reconciler: %v", err)
-	}
 	startlog.Infof("Startup complete, operator running, version: %s", version.Long())
 	if err := mgr.Start(signals.SetupSignalHandler()); err != nil {
 		startlog.Fatalf("could not start manager: %v", err)
 	}
 }
 
-type reconcilerOpts struct {
-	log                *zap.SugaredLogger
-	tsServer           *tsnet.Server
-	tsClient           *tailscale.Client
-	tailscaleNamespace string       // namespace in which operator resources will be deployed
-	restConfig         *rest.Config // config for connecting to the kube API server
-	proxyImage         string       // <proxy-image-repo>:<proxy-image-tag>
-	// proxyPriorityClassName isPriorityClass to be set for proxy Pods. This
-	// is a legacy mechanism for cluster resource configuration options -
-	// going forward use ProxyClass.
-	// https://kubernetes.io/docs/concepts/scheduling-eviction/pod-priority-preemption/#priorityclass
-	proxyPriorityClassName string
-	// proxyTags are ACL tags to tag proxy auth keys. Multiple tags should
-	// be provided as a string with comma-separated tag values. Proxy tags
-	// default to tag:k8s.
-	// https://tailscale.com/kb/1085/auth-keys
-	proxyTags string
-	// proxyActAsDefaultLoadBalancer determines whether this operator
-	// instance should act as the default ingress controller when looking at
-	// Ingress resources with unset ingress.spec.ingressClassName.
-	// TODO (irbekrm): this setting does not respect the default
-	// IngressClass.
-	// https://kubernetes.io/docs/concepts/services-networking/ingress/#default-ingress-class
-	// We should fix that and preferably integrate with that mechanism as
-	// well - perhaps make the operator itself create the default
-	// IngressClass if this is set to true.
-	proxyActAsDefaultLoadBalancer bool
-	// proxyFirewallMode determines whether non-userspace proxies should use
-	// iptables or nftables for firewall configuration. Accepted values are
-	// iptables, nftables and auto. If set to auto, proxy will automatically
-	// determine which mode is supported for a given host (prefer nftables).
-	// Auto is usually the best choice, unless you want to explicitly set
-	// specific mode for debugging purposes.
-	proxyFirewallMode string
-}
-
-// enqueueAllIngressEgressProxySvcsinNS returns a reconcile request for each
-// ingress/egress proxy headless Service found in the provided namespace.
-func enqueueAllIngressEgressProxySvcsInNS(ns string, cl client.Client, logger *zap.SugaredLogger) handler.MapFunc {
-	return func(ctx context.Context, _ client.Object) []reconcile.Request {
-		reqs := make([]reconcile.Request, 0)
-
-		// Get all headless Services for proxies configured using Service.
-		svcProxyLabels := map[string]string{
-			LabelManaged:    "true",
-			LabelParentType: "svc",
-		}
-		svcHeadlessSvcList := &corev1.ServiceList{}
-		if err := cl.List(ctx, svcHeadlessSvcList, client.InNamespace(ns), client.MatchingLabels(svcProxyLabels)); err != nil {
-			logger.Errorf("error listing headless Services for tailscale ingress/egress Services in operator namespace: %v", err)
-			return nil
-		}
-		for _, svc := range svcHeadlessSvcList.Items {
-			reqs = append(reqs, reconcile.Request{NamespacedName: types.NamespacedName{Namespace: svc.Namespace, Name: svc.Name}})
-		}
-
-		// Get all headless Services for proxies configured using Ingress.
-		ingProxyLabels := map[string]string{
-			LabelManaged:    "true",
-			LabelParentType: "ingress",
-		}
-		ingHeadlessSvcList := &corev1.ServiceList{}
-		if err := cl.List(ctx, ingHeadlessSvcList, client.InNamespace(ns), client.MatchingLabels(ingProxyLabels)); err != nil {
-			logger.Errorf("error listing headless Services for tailscale Ingresses in operator namespace: %v", err)
-			return nil
-		}
-		for _, svc := range ingHeadlessSvcList.Items {
-			reqs = append(reqs, reconcile.Request{NamespacedName: types.NamespacedName{Namespace: svc.Namespace, Name: svc.Name}})
-		}
-		return reqs
-	}
-}
-
-// dnsRecordsReconciler filters EndpointSlice events for which
-// dns-records-reconciler should reconcile a headless Service. The only events
-// it should reconcile are those for EndpointSlices associated with proxy
-// headless Services.
-func dnsRecordsReconcilerEndpointSliceHandler(ctx context.Context, o client.Object) []reconcile.Request {
-	if !isManagedByType(o, "svc") && !isManagedByType(o, "ingress") {
-		return nil
-	}
-	headlessSvcName, ok := o.GetLabels()[discoveryv1.LabelServiceName] // https://kubernetes.io/docs/concepts/services-networking/endpoint-slices/#ownership
-	if !ok {
-		return nil
-	}
-	return []reconcile.Request{{NamespacedName: types.NamespacedName{Namespace: o.GetNamespace(), Name: headlessSvcName}}}
-}
-
-// dnsRecordsReconcilerServiceHandler filters Service events for which
-// dns-records-reconciler should reconcile. If the event is for a cluster
-// ingress/cluster egress proxy's headless Service, returns the Service for
-// reconcile.
-func dnsRecordsReconcilerServiceHandler(ctx context.Context, o client.Object) []reconcile.Request {
-	if isManagedByType(o, "svc") || isManagedByType(o, "ingress") {
-		return []reconcile.Request{{NamespacedName: types.NamespacedName{Namespace: o.GetNamespace(), Name: o.GetName()}}}
-	}
-	return nil
-}
-
-// dnsRecordsReconcilerIngressHandler filters Ingress events to ensure that
-// dns-records-reconciler only reconciles on tailscale Ingress events. When an
-// event is observed on a tailscale Ingress, reconcile the proxy headless Service.
-func dnsRecordsReconcilerIngressHandler(ns string, isDefaultLoadBalancer bool, cl client.Client, logger *zap.SugaredLogger) handler.MapFunc {
-	return func(ctx context.Context, o client.Object) []reconcile.Request {
-		ing, ok := o.(*networkingv1.Ingress)
-		if !ok {
-			return nil
-		}
-		if !isDefaultLoadBalancer && (ing.Spec.IngressClassName == nil || *ing.Spec.IngressClassName != "tailscale") {
-			return nil
-		}
-		proxyResourceLabels := childResourceLabels(ing.Name, ing.Namespace, "ingress")
-		headlessSvc, err := getSingleObject[corev1.Service](ctx, cl, ns, proxyResourceLabels)
-		if err != nil {
-			logger.Errorf("error getting headless Service from parent labels: %v", err)
-			return nil
-		}
-		if headlessSvc == nil {
-			return nil
-		}
-		return []reconcile.Request{{NamespacedName: types.NamespacedName{Namespace: headlessSvc.Namespace, Name: headlessSvc.Name}}}
-	}
-}
-
 type tsClient interface {
 	CreateKey(ctx context.Context, caps tailscale.KeyCapabilities) (string, *tailscale.Key, error)
 	DeleteDevice(ctx context.Context, nodeStableID string) error
@@ -611,46 +419,6 @@ func proxyClassHandlerForConnector(cl client.Client, logger *zap.SugaredLogger)
 	}
 }
 
-// serviceHandlerForIngress returns a handler for Service events for ingress
-// reconciler that ensures that if the Service associated with an event is of
-// interest to the reconciler, the associated Ingress(es) gets be reconciled.
-// The Services of interest are backend Services for tailscale Ingress and
-// managed Services for an StatefulSet for a proxy configured for tailscale
-// Ingress
-func serviceHandlerForIngress(cl client.Client, logger *zap.SugaredLogger) handler.MapFunc {
-	return func(ctx context.Context, o client.Object) []reconcile.Request {
-		if isManagedByType(o, "ingress") {
-			ingName := parentFromObjectLabels(o)
-			return []reconcile.Request{{NamespacedName: ingName}}
-		}
-		ingList := networkingv1.IngressList{}
-		if err := cl.List(ctx, &ingList, client.InNamespace(o.GetNamespace())); err != nil {
-			logger.Debugf("error listing Ingresses: %v", err)
-			return nil
-		}
-		reqs := make([]reconcile.Request, 0)
-		for _, ing := range ingList.Items {
-			if ing.Spec.IngressClassName == nil || *ing.Spec.IngressClassName != tailscaleIngressClassName {
-				return nil
-			}
-			if ing.Spec.DefaultBackend != nil && ing.Spec.DefaultBackend.Service != nil && ing.Spec.DefaultBackend.Service.Name == o.GetName() {
-				reqs = append(reqs, reconcile.Request{NamespacedName: client.ObjectKeyFromObject(&ing)})
-			}
-			for _, rule := range ing.Spec.Rules {
-				if rule.HTTP == nil {
-					continue
-				}
-				for _, path := range rule.HTTP.Paths {
-					if path.Backend.Service != nil && path.Backend.Service.Name == o.GetName() {
-						reqs = append(reqs, reconcile.Request{NamespacedName: client.ObjectKeyFromObject(&ing)})
-					}
-				}
-			}
-		}
-		return reqs
-	}
-}
-
 func serviceHandler(_ context.Context, o client.Object) []reconcile.Request {
 	if isManagedByType(o, "svc") {
 		// If this is a Service managed by a Service we want to enqueue its parent
@@ -669,6 +437,7 @@ func serviceHandler(_ context.Context, o client.Object) []reconcile.Request {
 			},
 		},
 	}
+
 }
 
 // isMagicDNSName reports whether name is a full tailnet node FQDN (with or

cmd/k8s-operator/proxy.go

@@ -20,7 +20,6 @@ import (
 	"k8s.io/client-go/transport"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/client/tailscale/apitype"
-	tskube "tailscale.com/kube"
 	"tailscale.com/tailcfg"
 	"tailscale.com/tsnet"
 	"tailscale.com/util/clientmetric"
@@ -208,24 +207,32 @@ func runAPIServerProxy(s *tsnet.Server, rt http.RoundTripper, log *zap.SugaredLo
 }
 
 const (
-	// oldCapabilityName is a legacy form of
-	// tailfcg.PeerCapabilityKubernetes capability. The only capability rule
-	// that is respected for this form is group impersonation - for
-	// backwards compatibility reasons.
-	// TODO (irbekrm): determine if anyone uses this and remove if possible.
-	oldCapabilityName = "https://" + tailcfg.PeerCapabilityKubernetes
+	capabilityName    = "tailscale.com/cap/kubernetes"
+	oldCapabilityName = "https://" + capabilityName
 )
 
+type capRule struct {
+	// Impersonate is a list of rules that specify how to impersonate the caller
+	// when proxying to the Kubernetes API.
+	Impersonate *impersonateRule `json:"impersonate,omitempty"`
+}
+
+// TODO(maisem): move this to some well-known location so that it can be shared
+// with control.
+type impersonateRule struct {
+	Groups []string `json:"groups,omitempty"`
+}
+
 // addImpersonationHeaders adds the appropriate headers to r to impersonate the
 // caller when proxying to the Kubernetes API. It uses the WhoIsResponse stashed
 // in the context by the apiserverProxy.
 func addImpersonationHeaders(r *http.Request, log *zap.SugaredLogger) error {
 	log = log.With("remote", r.RemoteAddr)
 	who := whoIsKey.Value(r.Context())
-	rules, err := tailcfg.UnmarshalCapJSON[tskube.KubernetesCapRule](who.CapMap, tailcfg.PeerCapabilityKubernetes)
+	rules, err := tailcfg.UnmarshalCapJSON[capRule](who.CapMap, capabilityName)
 	if len(rules) == 0 && err == nil {
 		// Try the old capability name for backwards compatibility.
-		rules, err = tailcfg.UnmarshalCapJSON[tskube.KubernetesCapRule](who.CapMap, oldCapabilityName)
+		rules, err = tailcfg.UnmarshalCapJSON[capRule](who.CapMap, oldCapabilityName)
 	}
 	if err != nil {
 		return fmt.Errorf("failed to unmarshal capability: %v", err)

cmd/k8s-operator/proxy_test.go

@@ -49,7 +49,7 @@ func TestImpersonationHeaders(t *testing.T) {
 			name:     "user-with-cap",
 			emailish: "foo@example.com",
 			capMap: tailcfg.PeerCapMap{
-				tailcfg.PeerCapabilityKubernetes: {
+				capabilityName: {
 					tailcfg.RawMessage(`{"impersonate":{"groups":["group1","group2"]}}`),
 					tailcfg.RawMessage(`{"impersonate":{"groups":["group1","group3"]}}`), // One group is duplicated.
 					tailcfg.RawMessage(`{"impersonate":{"groups":["group4"]}}`),
@@ -71,7 +71,7 @@ func TestImpersonationHeaders(t *testing.T) {
 			emailish: "tagged-device",
 			tags:     []string{"tag:foo", "tag:bar"},
 			capMap: tailcfg.PeerCapMap{
-				tailcfg.PeerCapabilityKubernetes: {
+				capabilityName: {
 					tailcfg.RawMessage(`{"impersonate":{"groups":["group1"]}}`),
 				},
 			},
@@ -80,26 +80,12 @@ func TestImpersonationHeaders(t *testing.T) {
 				"Impersonate-User":  {"node.ts.net"},
 			},
 		},
-		{
-			name:     "mix-of-caps",
-			emailish: "tagged-device",
-			tags:     []string{"tag:foo", "tag:bar"},
-			capMap: tailcfg.PeerCapMap{
-				tailcfg.PeerCapabilityKubernetes: {
-					tailcfg.RawMessage(`{"impersonate":{"groups":["group1"]},"recorder":["tag:foo"],"enforceRecorder":true}`),
-				},
-			},
-			wantHeaders: http.Header{
-				"Impersonate-Group": {"group1"},
-				"Impersonate-User":  {"node.ts.net"},
-			},
-		},
 		{
 			name:     "bad-cap",
 			emailish: "tagged-device",
 			tags:     []string{"tag:foo", "tag:bar"},
 			capMap: tailcfg.PeerCapMap{
-				tailcfg.PeerCapabilityKubernetes: {
+				capabilityName: {
 					tailcfg.RawMessage(`[]`),
 				},
 			},

cmd/k8s-operator/proxyclass.go

@@ -3,14 +3,14 @@
 
 //go:build !plan9
 
+// tailscale-operator provides a way to expose services running in a Kubernetes
+// cluster to your Tailnet.
 package main
 
 import (
 	"context"
 	"fmt"
-	"strings"
 
-	dockerref "github.com/distribution/reference"
 	"go.uber.org/zap"
 	corev1 "k8s.io/api/core/v1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
@@ -30,9 +30,7 @@ import (
 const (
 	reasonProxyClassInvalid  = "ProxyClassInvalid"
 	reasonProxyClassValid    = "ProxyClassValid"
-	reasonCustomTSEnvVar     = "CustomTSEnvVar"
 	messageProxyClassInvalid = "ProxyClass is not valid: %v"
-	messageCustomTSEnvVar    = "ProxyClass overrides the default value for %s env var for %s container. Running with custom values for Tailscale env vars is not recommended and might break in the future."
 )
 
 type ProxyClassReconciler struct {
@@ -100,33 +98,6 @@ func (a *ProxyClassReconciler) validate(pc *tsapi.ProxyClass) (violations field.
 					violations = append(violations, errs...)
 				}
 			}
-			if tc := pod.TailscaleContainer; tc != nil {
-				for _, e := range tc.Env {
-					if strings.HasPrefix(string(e.Name), "TS_") {
-						a.recorder.Event(pc, corev1.EventTypeWarning, reasonCustomTSEnvVar, fmt.Sprintf(messageCustomTSEnvVar, string(e.Name), "tailscale"))
-					}
-					if strings.EqualFold(string(e.Name), "EXPERIMENTAL_TS_CONFIGFILE_PATH") {
-						a.recorder.Event(pc, corev1.EventTypeWarning, reasonCustomTSEnvVar, fmt.Sprintf(messageCustomTSEnvVar, string(e.Name), "tailscale"))
-					}
-					if strings.EqualFold(string(e.Name), "EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS") {
-						a.recorder.Event(pc, corev1.EventTypeWarning, reasonCustomTSEnvVar, fmt.Sprintf(messageCustomTSEnvVar, string(e.Name), "tailscale"))
-					}
-				}
-				if tc.Image != "" {
-					// Same validation as used by kubelet https://github.com/kubernetes/kubernetes/blob/release-1.30/pkg/kubelet/images/image_manager.go#L212
-					if _, err := dockerref.ParseNormalizedNamed(tc.Image); err != nil {
-						violations = append(violations, field.TypeInvalid(field.NewPath("spec", "statefulSet", "pod", "tailscaleContainer", "image"), tc.Image, err.Error()))
-					}
-				}
-			}
-			if tc := pod.TailscaleInitContainer; tc != nil {
-				if tc.Image != "" {
-					// Same validation as used by kubelet https://github.com/kubernetes/kubernetes/blob/release-1.30/pkg/kubelet/images/image_manager.go#L212
-					if _, err := dockerref.ParseNormalizedNamed(tc.Image); err != nil {
-						violations = append(violations, field.TypeInvalid(field.NewPath("spec", "statefulSet", "pod", "tailscaleInitContainer", "image"), tc.Image, err.Error()))
-					}
-				}
-			}
 		}
 	}
 	// We do not validate embedded fields (security context, resource

cmd/k8s-operator/proxyclass_test.go

@@ -38,11 +38,6 @@ func TestProxyClass(t *testing.T) {
 				Pod: &tsapi.Pod{
 					Labels:      map[string]string{"foo": "bar", "xyz1234": "abc567"},
 					Annotations: map[string]string{"foo.io/bar": "{'key': 'val1232'}"},
-					TailscaleContainer: &tsapi.Container{
-						Env:             []tsapi.Env{{Name: "FOO", Value: "BAR"}},
-						ImagePullPolicy: "IfNotPresent",
-						Image:           "ghcr.my-repo/tailscale:v0.01testsomething",
-					},
 				},
 			},
 		},
@@ -56,28 +51,27 @@ func TestProxyClass(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	fr := record.NewFakeRecorder(3) // bump this if you expect a test case to throw more events
 	cl := tstest.NewClock(tstest.ClockOpts{})
 	pcr := &ProxyClassReconciler{
 		Client:   fc,
 		logger:   zl.Sugar(),
 		clock:    cl,
-		recorder: fr,
+		recorder: record.NewFakeRecorder(1),
 	}
+	expectReconciled(t, pcr, "", "test")
 
 	// 1. A valid ProxyClass resource gets its status updated to Ready.
-	expectReconciled(t, pcr, "", "test")
-	pc.Status.Conditions = append(pc.Status.Conditions, metav1.Condition{
-		Type:               string(tsapi.ProxyClassready),
+	pc.Status.Conditions = append(pc.Status.Conditions, tsapi.ConnectorCondition{
+		Type:               tsapi.ProxyClassready,
 		Status:             metav1.ConditionTrue,
 		Reason:             reasonProxyClassValid,
 		Message:            reasonProxyClassValid,
-		LastTransitionTime: metav1.Time{Time: cl.Now().Truncate(time.Second)},
+		LastTransitionTime: &metav1.Time{Time: cl.Now().Truncate(time.Second)},
 	})
 
-	expectEqual(t, fc, pc, nil)
+	expectEqual(t, fc, pc)
 
-	// 2. A ProxyClass resource with invalid labels gets its status updated to Invalid with an error message.
+	// 2. An invalid ProxyClass resource gets its status updated to Invalid.
 	pc.Spec.StatefulSet.Labels["foo"] = "?!someVal"
 	mustUpdate(t, fc, "", "test", func(proxyClass *tsapi.ProxyClass) {
 		proxyClass.Spec.StatefulSet.Labels = pc.Spec.StatefulSet.Labels
@@ -85,52 +79,5 @@ func TestProxyClass(t *testing.T) {
 	expectReconciled(t, pcr, "", "test")
 	msg := `ProxyClass is not valid: .spec.statefulSet.labels: Invalid value: "?!someVal": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')`
 	tsoperator.SetProxyClassCondition(pc, tsapi.ProxyClassready, metav1.ConditionFalse, reasonProxyClassInvalid, msg, 0, cl, zl.Sugar())
-	expectEqual(t, fc, pc, nil)
-	expectedEvent := "Warning ProxyClassInvalid ProxyClass is not valid: .spec.statefulSet.labels: Invalid value: \"?!someVal\": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')"
-	expectEvents(t, fr, []string{expectedEvent})
-
-	// 3. A ProxyClass resource with invalid image reference gets it status updated to Invalid with an error message.
-	pc.Spec.StatefulSet.Labels = nil
-	pc.Spec.StatefulSet.Pod.TailscaleContainer.Image = "FOO bar"
-	mustUpdate(t, fc, "", "test", func(proxyClass *tsapi.ProxyClass) {
-		proxyClass.Spec.StatefulSet.Labels = nil
-		proxyClass.Spec.StatefulSet.Pod.TailscaleContainer.Image = pc.Spec.StatefulSet.Pod.TailscaleContainer.Image
-	})
-	expectReconciled(t, pcr, "", "test")
-	msg = `ProxyClass is not valid: spec.statefulSet.pod.tailscaleContainer.image: Invalid value: "FOO bar": invalid reference format: repository name (library/FOO bar) must be lowercase`
-	tsoperator.SetProxyClassCondition(pc, tsapi.ProxyClassready, metav1.ConditionFalse, reasonProxyClassInvalid, msg, 0, cl, zl.Sugar())
-	expectEqual(t, fc, pc, nil)
-	expectedEvent = `Warning ProxyClassInvalid ProxyClass is not valid: spec.statefulSet.pod.tailscaleContainer.image: Invalid value: "FOO bar": invalid reference format: repository name (library/FOO bar) must be lowercase`
-	expectEvents(t, fr, []string{expectedEvent})
-
-	// 4. A ProxyClass resource with invalid init container image reference gets it status updated to Invalid with an error message.
-	pc.Spec.StatefulSet.Labels = nil
-	pc.Spec.StatefulSet.Pod.TailscaleContainer.Image = ""
-	pc.Spec.StatefulSet.Pod.TailscaleInitContainer = &tsapi.Container{
-		Image: "FOO bar",
-	}
-	mustUpdate(t, fc, "", "test", func(proxyClass *tsapi.ProxyClass) {
-		proxyClass.Spec.StatefulSet.Pod.TailscaleContainer.Image = pc.Spec.StatefulSet.Pod.TailscaleContainer.Image
-		proxyClass.Spec.StatefulSet.Pod.TailscaleInitContainer = &tsapi.Container{
-			Image: pc.Spec.StatefulSet.Pod.TailscaleInitContainer.Image,
-		}
-	})
-	expectReconciled(t, pcr, "", "test")
-	msg = `ProxyClass is not valid: spec.statefulSet.pod.tailscaleInitContainer.image: Invalid value: "FOO bar": invalid reference format: repository name (library/FOO bar) must be lowercase`
-	tsoperator.SetProxyClassCondition(pc, tsapi.ProxyClassready, metav1.ConditionFalse, reasonProxyClassInvalid, msg, 0, cl, zl.Sugar())
-	expectEqual(t, fc, pc, nil)
-	expectedEvent = `Warning ProxyClassInvalid ProxyClass is not valid: spec.statefulSet.pod.tailscaleInitContainer.image: Invalid value: "FOO bar": invalid reference format: repository name (library/FOO bar) must be lowercase`
-	expectEvents(t, fr, []string{expectedEvent})
-
-	// 5. An valid ProxyClass but with a Tailscale env vars set results in warning events.
-	pc.Spec.StatefulSet.Pod.TailscaleInitContainer.Image = "" // unset previous test
-	mustUpdate(t, fc, "", "test", func(proxyClass *tsapi.ProxyClass) {
-		proxyClass.Spec.StatefulSet.Pod.TailscaleInitContainer.Image = pc.Spec.StatefulSet.Pod.TailscaleInitContainer.Image
-		proxyClass.Spec.StatefulSet.Pod.TailscaleContainer.Env = []tsapi.Env{{Name: "TS_USERSPACE", Value: "true"}, {Name: "EXPERIMENTAL_TS_CONFIGFILE_PATH"}, {Name: "EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS"}}
-	})
-	expectedEvents := []string{"Warning CustomTSEnvVar ProxyClass overrides the default value for TS_USERSPACE env var for tailscale container. Running with custom values for Tailscale env vars is not recommended and might break in the future.",
-		"Warning CustomTSEnvVar ProxyClass overrides the default value for EXPERIMENTAL_TS_CONFIGFILE_PATH env var for tailscale container. Running with custom values for Tailscale env vars is not recommended and might break in the future.",
-		"Warning CustomTSEnvVar ProxyClass overrides the default value for EXPERIMENTAL_ALLOW_PROXYING_CLUSTER_TRAFFIC_VIA_INGRESS env var for tailscale container. Running with custom values for Tailscale env vars is not recommended and might break in the future."}
-	expectReconciled(t, pcr, "", "test")
-	expectEvents(t, fr, expectedEvents)
+	expectEqual(t, fc, pc)
 }

cmd/k8s-operator/sts.go

@@ -34,7 +34,7 @@ import (
 	"tailscale.com/net/netutil"
 	"tailscale.com/tailcfg"
 	"tailscale.com/types/opt"
-	"tailscale.com/types/ptr"
+	"tailscale.com/util/dnsname"
 	"tailscale.com/util/mak"
 )
 
@@ -86,18 +86,22 @@ const (
 	// ensure that it does not get removed when a ProxyClass configuration
 	// is applied.
 	podAnnotationLastSetClusterIP         = "tailscale.com/operator-last-set-cluster-ip"
-	podAnnotationLastSetClusterDNSName    = "tailscale.com/operator-last-set-cluster-dns-name"
+	podAnnotationLastSetHostname          = "tailscale.com/operator-last-set-hostname"
 	podAnnotationLastSetTailnetTargetIP   = "tailscale.com/operator-last-set-ts-tailnet-target-ip"
 	podAnnotationLastSetTailnetTargetFQDN = "tailscale.com/operator-last-set-ts-tailnet-target-fqdn"
 	// podAnnotationLastSetConfigFileHash is sha256 hash of the current tailscaled configuration contents.
 	podAnnotationLastSetConfigFileHash = "tailscale.com/operator-last-set-config-file-hash"
+
+	// tailscaledConfigKey is the name of the key in proxy Secret Data that
+	// holds the tailscaled config contents.
+	tailscaledConfigKey = "tailscaled"
 )
 
 var (
 	// tailscaleManagedLabels are label keys that tailscale operator sets on StatefulSets and Pods.
 	tailscaleManagedLabels = []string{LabelManaged, LabelParentType, LabelParentName, LabelParentNamespace, "app"}
 	// tailscaleManagedAnnotations are annotation keys that tailscale operator sets on StatefulSets and Pods.
-	tailscaleManagedAnnotations = []string{podAnnotationLastSetClusterIP, podAnnotationLastSetTailnetTargetIP, podAnnotationLastSetTailnetTargetFQDN, podAnnotationLastSetConfigFileHash}
+	tailscaleManagedAnnotations = []string{podAnnotationLastSetClusterIP, podAnnotationLastSetHostname, podAnnotationLastSetTailnetTargetIP, podAnnotationLastSetTailnetTargetFQDN, podAnnotationLastSetConfigFileHash}
 )
 
 type tailscaleSTSConfig struct {
@@ -105,9 +109,8 @@ type tailscaleSTSConfig struct {
 	ParentResourceUID   string
 	ChildResourceLabels map[string]string
 
-	ServeConfig          *ipn.ServeConfig // if serve config is set, this is a proxy for Ingress
-	ClusterTargetIP      string           // ingress target IP
-	ClusterTargetDNSName string           // ingress target DNS name
+	ServeConfig     *ipn.ServeConfig // if serve config is set, this is a proxy for Ingress
+	ClusterTargetIP string           // ingress target
 	// If set to true, operator should configure containerboot to forward
 	// cluster traffic via the proxy set up for Kubernetes Ingress.
 	ForwardClusterTrafficViaL7IngressProxy bool
@@ -123,9 +126,7 @@ type tailscaleSTSConfig struct {
 	// what this StatefulSet should be created for.
 	Connector *connector
 
-	ProxyClassName string // name of ProxyClass if one needs to be applied to the proxy
-
-	ProxyClass *tsapi.ProxyClass // ProxyClass that needs to be applied to the proxy (if there is one)
+	ProxyClass string
 }
 
 type connector struct {
@@ -171,23 +172,11 @@ func (a *tailscaleSTSReconciler) Provision(ctx context.Context, logger *zap.Suga
 		return nil, fmt.Errorf("failed to reconcile headless service: %w", err)
 	}
 
-	proxyClass := new(tsapi.ProxyClass)
-	if sts.ProxyClassName != "" {
-		if err := a.Get(ctx, types.NamespacedName{Name: sts.ProxyClassName}, proxyClass); err != nil {
-			return nil, fmt.Errorf("failed to get ProxyClass: %w", err)
-		}
-		if !tsoperator.ProxyClassIsReady(proxyClass) {
-			logger.Infof("ProxyClass %s specified for the proxy, but it is not (yet) in a ready state, waiting..")
-			return nil, nil
-		}
-	}
-	sts.ProxyClass = proxyClass
-
-	secretName, tsConfigHash, configs, err := a.createOrGetSecret(ctx, logger, sts, hsvc)
+	secretName, tsConfigHash, err := a.createOrGetSecret(ctx, logger, sts, hsvc)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create or get API key secret: %w", err)
 	}
-	_, err = a.reconcileSTS(ctx, logger, sts, hsvc, secretName, tsConfigHash, configs)
+	_, err = a.reconcileSTS(ctx, logger, sts, hsvc, secretName, tsConfigHash)
 	if err != nil {
 		return nil, fmt.Errorf("failed to reconcile statefulset: %w", err)
 	}
@@ -294,14 +283,13 @@ func (a *tailscaleSTSReconciler) reconcileHeadlessService(ctx context.Context, l
 			Selector: map[string]string{
 				"app": sts.ParentResourceUID,
 			},
-			IPFamilyPolicy: ptr.To(corev1.IPFamilyPolicyPreferDualStack),
 		},
 	}
 	logger.Debugf("reconciling headless service for StatefulSet")
 	return createOrUpdate(ctx, a.Client, a.operatorNamespace, hsvc, func(svc *corev1.Service) { svc.Spec = hsvc.Spec })
 }
 
-func (a *tailscaleSTSReconciler) createOrGetSecret(ctx context.Context, logger *zap.SugaredLogger, stsC *tailscaleSTSConfig, hsvc *corev1.Service) (secretName, hash string, configs tailscaleConfigs, _ error) {
+func (a *tailscaleSTSReconciler) createOrGetSecret(ctx context.Context, logger *zap.SugaredLogger, stsC *tailscaleSTSConfig, hsvc *corev1.Service) (string, string, error) {
 	secret := &corev1.Secret{
 		ObjectMeta: metav1.ObjectMeta{
 			// Hardcode a -0 suffix so that in future, if we support
@@ -317,23 +305,25 @@ func (a *tailscaleSTSReconciler) createOrGetSecret(ctx context.Context, logger *
 		logger.Debugf("secret %s/%s already exists", secret.GetNamespace(), secret.GetName())
 		orig = secret.DeepCopy()
 	} else if !apierrors.IsNotFound(err) {
-		return "", "", nil, err
+		return "", "", err
 	}
 
-	var authKey string
+	var (
+		authKey, hash string
+	)
 	if orig == nil {
-		// Initially it contains only tailscaled config, but when the
-		// proxy starts, it will also store there the state, certs and
-		// ACME account key.
+		// Secret doesn't exist yet, create one. Initially it contains
+		// only the Tailscale authkey, but once Tailscale starts it'll
+		// also store the daemon state.
 		sts, err := getSingleObject[appsv1.StatefulSet](ctx, a.Client, a.operatorNamespace, stsC.ChildResourceLabels)
 		if err != nil {
-			return "", "", nil, err
+			return "", "", err
 		}
 		if sts != nil {
 			// StatefulSet exists, so we have already created the secret.
 			// If the secret is missing, they should delete the StatefulSet.
 			logger.Errorf("Tailscale proxy secret doesn't exist, but the corresponding StatefulSet %s/%s already does. Something is wrong, please delete the StatefulSet.", sts.GetNamespace(), sts.GetName())
-			return "", "", nil, nil
+			return "", "", nil
 		}
 		// Create API Key secret which is going to be used by the statefulset
 		// to authenticate with Tailscale.
@@ -344,72 +334,44 @@ func (a *tailscaleSTSReconciler) createOrGetSecret(ctx context.Context, logger *
 		}
 		authKey, err = a.newAuthKey(ctx, tags)
 		if err != nil {
-			return "", "", nil, err
+			return "", "", err
 		}
 	}
-	configs, err := tailscaledConfig(stsC, authKey, orig)
-	if err != nil {
-		return "", "", nil, fmt.Errorf("error creating tailscaled config: %w", err)
+	if !shouldDoTailscaledDeclarativeConfig(stsC) && authKey != "" {
+		mak.Set(&secret.StringData, "authkey", authKey)
 	}
-	hash, err = tailscaledConfigHash(configs)
-	if err != nil {
-		return "", "", nil, fmt.Errorf("error calculating hash of tailscaled configs: %w", err)
-	}
-
-	latest := tailcfg.CapabilityVersion(-1)
-	var latestConfig ipn.ConfigVAlpha
-	for key, val := range configs {
-		fn := tsoperator.TailscaledConfigFileNameForCap(key)
-		b, err := json.Marshal(val)
+	if shouldDoTailscaledDeclarativeConfig(stsC) {
+		confFileBytes, h, err := tailscaledConfig(stsC, authKey, orig)
 		if err != nil {
-			return "", "", nil, fmt.Errorf("error marshalling tailscaled config: %w", err)
-		}
-		mak.Set(&secret.StringData, fn, string(b))
-		if key > latest {
-			latest = key
-			latestConfig = val
+			return "", "", fmt.Errorf("error creating tailscaled config: %w", err)
 		}
+		hash = h
+		mak.Set(&secret.StringData, tailscaledConfigKey, string(confFileBytes))
 	}
-
 	if stsC.ServeConfig != nil {
 		j, err := json.Marshal(stsC.ServeConfig)
 		if err != nil {
-			return "", "", nil, err
+			return "", "", err
 		}
 		mak.Set(&secret.StringData, "serve-config", string(j))
 	}
 
 	if orig != nil {
-		logger.Debugf("patching the existing proxy Secret with tailscaled config %s", sanitizeConfigBytes(latestConfig))
+		logger.Debugf("patching existing state Secret with values %s", secret.Data[tailscaledConfigKey])
 		if err := a.Patch(ctx, secret, client.MergeFrom(orig)); err != nil {
-			return "", "", nil, err
+			return "", "", err
 		}
 	} else {
-		logger.Debugf("creating a new Secret for the proxy with tailscaled config %s", sanitizeConfigBytes(latestConfig))
+		logger.Debugf("creating new state Secret with authkey %s", secret.Data[tailscaledConfigKey])
 		if err := a.Create(ctx, secret); err != nil {
-			return "", "", nil, err
+			return "", "", err
 		}
 	}
-	return secret.Name, hash, configs, nil
+	return secret.Name, hash, nil
 }
 
-// sanitizeConfigBytes returns ipn.ConfigVAlpha in string form with redacted
-// auth key.
-func sanitizeConfigBytes(c ipn.ConfigVAlpha) string {
-	if c.AuthKey != nil {
-		c.AuthKey = ptr.To("**redacted**")
-	}
-	sanitizedBytes, err := json.Marshal(c)
-	if err != nil {
-		return "invalid config"
-	}
-	return string(sanitizedBytes)
-}
-
-// DeviceInfo returns the device ID, hostname and IPs for the Tailscale device
-// that acts as an operator proxy. It retrieves info from a Kubernetes Secret
-// labeled with the provided labels.
-// Either of device ID, hostname and IPs can be empty string if not found in the Secret.
+// DeviceInfo returns the device ID and hostname for the Tailscale device
+// associated with the given labels.
 func (a *tailscaleSTSReconciler) DeviceInfo(ctx context.Context, childLabels map[string]string) (id tailcfg.StableNodeID, hostname string, ips []string, err error) {
 	sec, err := getSingleObject[corev1.Secret](ctx, a.Client, a.operatorNamespace, childLabels)
 	if err != nil {
@@ -426,12 +388,7 @@ func (a *tailscaleSTSReconciler) DeviceInfo(ctx context.Context, childLabels map
 	// to remove it.
 	hostname = strings.TrimSuffix(string(sec.Data["device_fqdn"]), ".")
 	if hostname == "" {
-		// Device ID gets stored and retrieved in a different flow than
-		// FQDN and IPs. A device that acts as Kubernetes operator
-		// proxy, but whose route setup has failed might have an device
-		// ID, but no FQDN/IPs. If so, return the ID, to allow the
-		// operator to clean up such devices.
-		return id, "", nil, nil
+		return "", "", nil, nil
 	}
 	if rawDeviceIPs, ok := sec.Data["device_ips"]; ok {
 		if err := json.Unmarshal(rawDeviceIPs, &ips); err != nil {
@@ -465,7 +422,7 @@ var proxyYaml []byte
 //go:embed deploy/manifests/userspace-proxy.yaml
 var userspaceProxyYaml []byte
 
-func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.SugaredLogger, sts *tailscaleSTSConfig, headlessSvc *corev1.Service, proxySecret, tsConfigHash string, configs map[tailcfg.CapabilityVersion]ipn.ConfigVAlpha) (*appsv1.StatefulSet, error) {
+func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.SugaredLogger, sts *tailscaleSTSConfig, headlessSvc *corev1.Service, proxySecret, tsConfigHash string) (*appsv1.StatefulSet, error) {
 	ss := new(appsv1.StatefulSet)
 	if sts.ServeConfig != nil && sts.ForwardClusterTrafficViaL7IngressProxy != true { // If forwarding cluster traffic via is required we need non-userspace + NET_ADMIN + forwarding
 		if err := yaml.Unmarshal(userspaceProxyYaml, &ss); err != nil {
@@ -485,6 +442,16 @@ func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.S
 	}
 	pod := &ss.Spec.Template
 	container := &pod.Spec.Containers[0]
+	proxyClass := new(tsapi.ProxyClass)
+	if sts.ProxyClass != "" {
+		if err := a.Get(ctx, types.NamespacedName{Name: sts.ProxyClass}, proxyClass); err != nil {
+			return nil, fmt.Errorf("failed to get ProxyClass: %w", err)
+		}
+		if !tsoperator.ProxyClassIsReady(proxyClass) {
+			logger.Infof("ProxyClass %s specified for the proxy, but it is not (yet) in a ready state, waiting..")
+			return nil, nil
+		}
+	}
 	container.Image = a.proxyImage
 	ss.ObjectMeta = metav1.ObjectMeta{
 		Name:      headlessSvc.Name,
@@ -510,16 +477,6 @@ func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.S
 			Name:  "TS_KUBE_SECRET",
 			Value: proxySecret,
 		},
-		corev1.EnvVar{
-			// Old tailscaled config key is still used for backwards compatibility.
-			Name:  "EXPERIMENTAL_TS_CONFIGFILE_PATH",
-			Value: "/etc/tsconfig/tailscaled",
-		},
-		corev1.EnvVar{
-			// New style is in the form of cap-<capability-version>.hujson.
-			Name:  "TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR",
-			Value: "/etc/tsconfig",
-		},
 	)
 	if sts.ForwardClusterTrafficViaL7IngressProxy {
 		container.Env = append(container.Env, corev1.EnvVar{
@@ -527,23 +484,42 @@ func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.S
 			Value: "true",
 		})
 	}
-	// Configure containeboot to run tailscaled with a configfile read from the state Secret.
-	mak.Set(&ss.Spec.Template.Annotations, podAnnotationLastSetConfigFileHash, tsConfigHash)
-
-	configVolume := corev1.Volume{
-		Name: "tailscaledconfig",
-		VolumeSource: corev1.VolumeSource{
-			Secret: &corev1.SecretVolumeSource{
-				SecretName: proxySecret,
-			},
-		},
+	if !shouldDoTailscaledDeclarativeConfig(sts) {
+		container.Env = append(container.Env, corev1.EnvVar{
+			Name:  "TS_HOSTNAME",
+			Value: sts.Hostname,
+		})
+		// containerboot currently doesn't have a way to re-read the hostname/ip as
+		// it is passed via an environment variable. So we need to restart the
+		// container when the value changes. We do this by adding an annotation to
+		// the pod template that contains the last value we set.
+		mak.Set(&pod.Annotations, podAnnotationLastSetHostname, sts.Hostname)
+	}
+	// Configure containeboot to run tailscaled with a configfile read from the state Secret.
+	if shouldDoTailscaledDeclarativeConfig(sts) {
+		mak.Set(&ss.Spec.Template.Annotations, podAnnotationLastSetConfigFileHash, tsConfigHash)
+		pod.Spec.Volumes = append(ss.Spec.Template.Spec.Volumes, corev1.Volume{
+			Name: "tailscaledconfig",
+			VolumeSource: corev1.VolumeSource{
+				Secret: &corev1.SecretVolumeSource{
+					SecretName: proxySecret,
+					Items: []corev1.KeyToPath{{
+						Key:  tailscaledConfigKey,
+						Path: tailscaledConfigKey,
+					}},
+				},
+			},
+		})
+		container.VolumeMounts = append(container.VolumeMounts, corev1.VolumeMount{
+			Name:      "tailscaledconfig",
+			ReadOnly:  true,
+			MountPath: "/etc/tsconfig",
+		})
+		container.Env = append(container.Env, corev1.EnvVar{
+			Name:  "EXPERIMENTAL_TS_CONFIGFILE_PATH",
+			Value: "/etc/tsconfig/tailscaled",
+		})
 	}
-	pod.Spec.Volumes = append(ss.Spec.Template.Spec.Volumes, configVolume)
-	container.VolumeMounts = append(container.VolumeMounts, corev1.VolumeMount{
-		Name:      "tailscaledconfig",
-		ReadOnly:  true,
-		MountPath: "/etc/tsconfig",
-	})
 
 	if a.tsFirewallMode != "" {
 		container.Env = append(container.Env, corev1.EnvVar{
@@ -560,12 +536,6 @@ func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.S
 			Value: sts.ClusterTargetIP,
 		})
 		mak.Set(&ss.Spec.Template.Annotations, podAnnotationLastSetClusterIP, sts.ClusterTargetIP)
-	} else if sts.ClusterTargetDNSName != "" {
-		container.Env = append(container.Env, corev1.EnvVar{
-			Name:  "TS_EXPERIMENTAL_DEST_DNS_NAME",
-			Value: sts.ClusterTargetDNSName,
-		})
-		mak.Set(&ss.Spec.Template.Annotations, podAnnotationLastSetClusterDNSName, sts.ClusterTargetDNSName)
 	} else if sts.TailnetTargetIP != "" {
 		container.Env = append(container.Env, corev1.EnvVar{
 			Name:  "TS_TAILNET_TARGET_IP",
@@ -593,15 +563,18 @@ func (a *tailscaleSTSReconciler) reconcileSTS(ctx context.Context, logger *zap.S
 			VolumeSource: corev1.VolumeSource{
 				Secret: &corev1.SecretVolumeSource{
 					SecretName: proxySecret,
-					Items:      []corev1.KeyToPath{{Key: "serve-config", Path: "serve-config"}},
+					Items: []corev1.KeyToPath{{
+						Key:  "serve-config",
+						Path: "serve-config",
+					}},
 				},
 			},
 		})
 	}
 	logger.Debugf("reconciling statefulset %s/%s", ss.GetNamespace(), ss.GetName())
-	if sts.ProxyClassName != "" {
-		logger.Debugf("configuring proxy resources with ProxyClass %s", sts.ProxyClassName)
-		ss = applyProxyClassToStatefulSet(sts.ProxyClass, ss, sts, logger)
+	if sts.ProxyClass != "" {
+		logger.Debugf("configuring proxy resources with ProxyClass %s", sts.ProxyClass)
+		ss = applyProxyClassToStatefulSet(proxyClass, ss)
 	}
 	updateSS := func(s *appsv1.StatefulSet) {
 		s.Spec = ss.Spec
@@ -632,28 +605,8 @@ func mergeStatefulSetLabelsOrAnnots(current, custom map[string]string, managed [
 	return custom
 }
 
-func applyProxyClassToStatefulSet(pc *tsapi.ProxyClass, ss *appsv1.StatefulSet, stsCfg *tailscaleSTSConfig, logger *zap.SugaredLogger) *appsv1.StatefulSet {
-	if pc == nil || ss == nil {
-		return ss
-	}
-	if pc.Spec.Metrics != nil && pc.Spec.Metrics.Enable {
-		if stsCfg.TailnetTargetFQDN == "" && stsCfg.TailnetTargetIP == "" && !stsCfg.ForwardClusterTrafficViaL7IngressProxy {
-			enableMetrics(ss, pc)
-		} else if stsCfg.ForwardClusterTrafficViaL7IngressProxy {
-			// TODO (irbekrm): fix this
-			// For Ingress proxies that have been configured with
-			// tailscale.com/experimental-forward-cluster-traffic-via-ingress
-			// annotation, all cluster traffic is forwarded to the
-			// Ingress backend(s).
-			logger.Info("ProxyClass specifies that metrics should be enabled, but this is currently not supported for Ingress proxies that accept cluster traffic.")
-		} else {
-			// TODO (irbekrm): fix this
-			// For egress proxies, currently all cluster traffic is forwarded to the tailnet target.
-			logger.Info("ProxyClass specifies that metrics should be enabled, but this is currently not supported for Ingress proxies that accept cluster traffic.")
-		}
-	}
-
-	if pc.Spec.StatefulSet == nil {
+func applyProxyClassToStatefulSet(pc *tsapi.ProxyClass, ss *appsv1.StatefulSet) *appsv1.StatefulSet {
+	if pc == nil || ss == nil || pc.Spec.StatefulSet == nil {
 		return ss
 	}
 
@@ -680,7 +633,6 @@ func applyProxyClassToStatefulSet(pc *tsapi.ProxyClass, ss *appsv1.StatefulSet,
 	ss.Spec.Template.Spec.ImagePullSecrets = wantsPod.ImagePullSecrets
 	ss.Spec.Template.Spec.NodeName = wantsPod.NodeName
 	ss.Spec.Template.Spec.NodeSelector = wantsPod.NodeSelector
-	ss.Spec.Template.Spec.Affinity = wantsPod.Affinity
 	ss.Spec.Template.Spec.Tolerations = wantsPod.Tolerations
 
 	// Update containers.
@@ -692,21 +644,6 @@ func applyProxyClassToStatefulSet(pc *tsapi.ProxyClass, ss *appsv1.StatefulSet,
 			base.SecurityContext = overlay.SecurityContext
 		}
 		base.Resources = overlay.Resources
-		for _, e := range overlay.Env {
-			// Env vars configured via ProxyClass might override env
-			// vars that have been specified by the operator, i.e
-			// TS_USERSPACE. The intended behaviour is to allow this
-			// and in practice it works without explicitly removing
-			// the operator configured value here as a later value
-			// in the env var list overrides an earlier one.
-			base.Env = append(base.Env, corev1.EnvVar{Name: string(e.Name), Value: e.Value})
-		}
-		if overlay.Image != "" {
-			base.Image = overlay.Image
-		}
-		if overlay.ImagePullPolicy != "" {
-			base.ImagePullPolicy = overlay.ImagePullPolicy
-		}
 		return base
 	}
 	for i, c := range ss.Spec.Template.Spec.Containers {
@@ -726,105 +663,41 @@ func applyProxyClassToStatefulSet(pc *tsapi.ProxyClass, ss *appsv1.StatefulSet,
 	return ss
 }
 
-func enableMetrics(ss *appsv1.StatefulSet, pc *tsapi.ProxyClass) {
-	for i, c := range ss.Spec.Template.Spec.Containers {
-		if c.Name == "tailscale" {
-			// Serve metrics on on <pod-ip>:9001/debug/metrics. If
-			// we didn't specify Pod IP here, the proxy would, in
-			// some cases, also listen to its Tailscale IP- we don't
-			// want folks to start relying on this side-effect as a
-			// feature.
-			ss.Spec.Template.Spec.Containers[i].Env = append(ss.Spec.Template.Spec.Containers[i].Env, corev1.EnvVar{Name: "TS_TAILSCALED_EXTRA_ARGS", Value: "--debug=$(POD_IP):9001"})
-			ss.Spec.Template.Spec.Containers[i].Ports = append(ss.Spec.Template.Spec.Containers[i].Ports, corev1.ContainerPort{Name: "metrics", Protocol: "TCP", HostPort: 9001, ContainerPort: 9001})
-			break
-		}
-	}
-}
-
-func readAuthKey(secret *corev1.Secret, key string) (*string, error) {
-	origConf := &ipn.ConfigVAlpha{}
-	if err := json.Unmarshal([]byte(secret.Data[key]), origConf); err != nil {
-		return nil, fmt.Errorf("error unmarshaling previous tailscaled config in %q: %w", key, err)
-	}
-	return origConf.AuthKey, nil
-}
-
 // tailscaledConfig takes a proxy config, a newly generated auth key if
 // generated and a Secret with the previous proxy state and auth key and
-// returns tailscaled configuration and a hash of that configuration.
-//
-// As of 2024-05-09 it also returns legacy tailscaled config without the
-// later added NoStatefulFilter field to support proxies older than cap95.
-// TODO (irbekrm): remove the legacy config once we no longer need to support
-// versions older than cap94,
-// https://tailscale.com/kb/1236/kubernetes-operator#operator-and-proxies
-func tailscaledConfig(stsC *tailscaleSTSConfig, newAuthkey string, oldSecret *corev1.Secret) (tailscaleConfigs, error) {
-	conf := &ipn.ConfigVAlpha{
-		Version:             "alpha0",
-		AcceptDNS:           "false",
-		AcceptRoutes:        "false", // AcceptRoutes defaults to true
-		Locked:              "false",
-		Hostname:            &stsC.Hostname,
-		NoStatefulFiltering: "false",
-	}
-
-	// For egress proxies only, we need to ensure that stateful filtering is
-	// not in place so that traffic from cluster can be forwarded via
-	// Tailscale IPs.
-	if stsC.TailnetTargetFQDN != "" || stsC.TailnetTargetIP != "" {
-		conf.NoStatefulFiltering = "true"
+// produces returns tailscaled configuration and a hash of that configuration.
+func tailscaledConfig(stsC *tailscaleSTSConfig, newAuthkey string, oldSecret *corev1.Secret) ([]byte, string, error) {
+	conf := ipn.ConfigVAlpha{
+		Version:   "alpha0",
+		AcceptDNS: "false",
+		Locked:    "false",
+		Hostname:  &stsC.Hostname,
 	}
 	if stsC.Connector != nil {
 		routes, err := netutil.CalcAdvertiseRoutes(stsC.Connector.routes, stsC.Connector.isExitNode)
 		if err != nil {
-			return nil, fmt.Errorf("error calculating routes: %w", err)
+			return nil, "", fmt.Errorf("error calculating routes: %w", err)
 		}
 		conf.AdvertiseRoutes = routes
 	}
-	if shouldAcceptRoutes(stsC.ProxyClass) {
-		conf.AcceptRoutes = "true"
-	}
-
 	if newAuthkey != "" {
 		conf.AuthKey = &newAuthkey
-	} else if oldSecret != nil {
-		var err error
-		latest := tailcfg.CapabilityVersion(-1)
-		latestStr := ""
-		for k, data := range oldSecret.Data {
-			// write to StringData, read from Data as StringData is write-only
-			if len(data) == 0 {
-				continue
-			}
-			v, err := tsoperator.CapVerFromFileName(k)
-			if err != nil {
-				continue
-			}
-			if v > latest {
-				latestStr = k
-				latest = v
-			}
-		}
-		// Allow for configs that don't contain an auth key. Perhaps
-		// users have some mechanisms to delete them. Auth key is
-		// normally not needed after the initial login.
-		if latestStr != "" {
-			conf.AuthKey, err = readAuthKey(oldSecret, latestStr)
-			if err != nil {
-				return nil, err
-			}
+	} else if oldSecret != nil && len(oldSecret.Data[tailscaledConfigKey]) > 0 { // write to StringData, read from Data as StringData is write-only
+		origConf := &ipn.ConfigVAlpha{}
+		if err := json.Unmarshal([]byte(oldSecret.Data[tailscaledConfigKey]), origConf); err != nil {
+			return nil, "", fmt.Errorf("error unmarshaling previous tailscaled config: %w", err)
 		}
+		conf.AuthKey = origConf.AuthKey
 	}
-	capVerConfigs := make(map[tailcfg.CapabilityVersion]ipn.ConfigVAlpha)
-	capVerConfigs[95] = *conf
-	// legacy config should not contain NoStatefulFiltering field.
-	conf.NoStatefulFiltering.Clear()
-	capVerConfigs[94] = *conf
-	return capVerConfigs, nil
-}
-
-func shouldAcceptRoutes(pc *tsapi.ProxyClass) bool {
-	return pc != nil && pc.Spec.TailscaleConfig != nil && pc.Spec.TailscaleConfig.AcceptRoutes
+	confFileBytes, err := json.Marshal(conf)
+	if err != nil {
+		return nil, "", fmt.Errorf("error marshaling tailscaled config : %w", err)
+	}
+	hash, err := hashBytes(confFileBytes)
+	if err != nil {
+		return nil, "", fmt.Errorf("error calculating config hash: %w", err)
+	}
+	return confFileBytes, hash, nil
 }
 
 // ptrObject is a type constraint for pointer types that implement
@@ -834,9 +707,7 @@ type ptrObject[T any] interface {
 	*T
 }
 
-type tailscaleConfigs map[tailcfg.CapabilityVersion]ipn.ConfigVAlpha
-
-// hashBytes produces a hash for the provided tailscaled config that is the same across
+// hashBytes produces a hash for the provided bytes that is the same across
 // different invocations of this code. We do not use the
 // tailscale.com/deephash.Hash here because that produces a different hash for
 // the same value in different tailscale builds. The hash we are producing here
@@ -845,13 +716,10 @@ type tailscaleConfigs map[tailcfg.CapabilityVersion]ipn.ConfigVAlpha
 // thing that changed is operator version (the hash is also exposed to users via
 // an annotation and might be confusing if it changes without the config having
 // changed).
-func tailscaledConfigHash(c tailscaleConfigs) (string, error) {
-	b, err := json.Marshal(c)
-	if err != nil {
-		return "", fmt.Errorf("error marshalling tailscaled configs: %w", err)
-	}
+func hashBytes(b []byte) (string, error) {
 	h := sha256.New()
-	if _, err = h.Write(b); err != nil {
+	_, err := h.Write(b)
+	if err != nil {
 		return "", fmt.Errorf("error calculating hash: %w", err)
 	}
 	return fmt.Sprintf("%x", h.Sum(nil)), nil
@@ -947,13 +815,23 @@ func defaultEnv(envName, defVal string) string {
 	return v
 }
 
-func nameForService(svc *corev1.Service) string {
+func nameForService(svc *corev1.Service) (string, error) {
 	if h, ok := svc.Annotations[AnnotationHostname]; ok {
-		return h
+		if err := dnsname.ValidLabel(h); err != nil {
+			return "", fmt.Errorf("invalid Tailscale hostname %q: %w", h, err)
+		}
+		return h, nil
 	}
-	return svc.Namespace + "-" + svc.Name
+	return svc.Namespace + "-" + svc.Name, nil
 }
 
 func isValidFirewallMode(m string) bool {
 	return m == "auto" || m == "nftables" || m == "iptables"
 }
+
+// shouldDoTailscaledDeclarativeConfig determines whether the proxy instance
+// should be configured to run tailscaled only with a all config opts passed to
+// tailscaled.
+func shouldDoTailscaledDeclarativeConfig(stsC *tailscaleSTSConfig) bool {
+	return stsC.Connector != nil
+}

cmd/k8s-operator/sts_test.go

@@ -14,7 +14,6 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
-	"go.uber.org/zap"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
@@ -52,10 +51,6 @@ func Test_statefulSetNameBase(t *testing.T) {
 }
 
 func Test_applyProxyClassToStatefulSet(t *testing.T) {
-	zl, err := zap.NewDevelopment()
-	if err != nil {
-		t.Fatal(err)
-	}
 	// Setup
 	proxyClassAllOpts := &tsapi.ProxyClass{
 		Spec: tsapi.ProxyClassSpec{
@@ -71,7 +66,6 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 					ImagePullSecrets: []corev1.LocalObjectReference{{Name: "docker-creds"}},
 					NodeName:         "some-node",
 					NodeSelector:     map[string]string{"beta.kubernetes.io/os": "linux"},
-					Affinity:         &corev1.Affinity{NodeAffinity: &corev1.NodeAffinity{RequiredDuringSchedulingIgnoredDuringExecution: &corev1.NodeSelector{}}},
 					Tolerations:      []corev1.Toleration{{Key: "", Operator: "Exists"}},
 					TailscaleContainer: &tsapi.Container{
 						SecurityContext: &corev1.SecurityContext{
@@ -81,9 +75,6 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 							Limits:   corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1000m"), corev1.ResourceMemory: resource.MustParse("128Mi")},
 							Requests: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("500m"), corev1.ResourceMemory: resource.MustParse("64Mi")},
 						},
-						Env:             []tsapi.Env{{Name: "foo", Value: "bar"}, {Name: "TS_USERSPACE", Value: "true"}, {Name: "bar"}},
-						ImagePullPolicy: "IfNotPresent",
-						Image:           "ghcr.io/my-repo/tailscale:v0.01testsomething",
 					},
 					TailscaleInitContainer: &tsapi.Container{
 						SecurityContext: &corev1.SecurityContext{
@@ -94,9 +85,6 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 							Limits:   corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1000m"), corev1.ResourceMemory: resource.MustParse("128Mi")},
 							Requests: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("500m"), corev1.ResourceMemory: resource.MustParse("64Mi")},
 						},
-						Env:             []tsapi.Env{{Name: "foo", Value: "bar"}, {Name: "TS_USERSPACE", Value: "true"}, {Name: "bar"}},
-						ImagePullPolicy: "IfNotPresent",
-						Image:           "ghcr.io/my-repo/tailscale:v0.01testsomething",
 					},
 				},
 			},
@@ -114,12 +102,6 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 			},
 		},
 	}
-	proxyClassMetrics := &tsapi.ProxyClass{
-		Spec: tsapi.ProxyClassSpec{
-			Metrics: &tsapi.Metrics{Enable: true},
-		},
-	}
-
 	var userspaceProxySS, nonUserspaceProxySS appsv1.StatefulSet
 	if err := yaml.Unmarshal(userspaceProxyYaml, &userspaceProxySS); err != nil {
 		t.Fatalf("unmarshaling userspace proxy template: %v", err)
@@ -139,12 +121,10 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 	env := []corev1.EnvVar{{Name: "TS_HOSTNAME", Value: "nginx"}}
 	userspaceProxySS.Labels = labels
 	userspaceProxySS.Annotations = annots
-	userspaceProxySS.Spec.Template.Spec.Containers[0].Image = "tailscale/tailscale:v0.0.1"
 	userspaceProxySS.Spec.Template.Spec.Containers[0].Env = env
 	nonUserspaceProxySS.ObjectMeta.Labels = labels
 	nonUserspaceProxySS.ObjectMeta.Annotations = annots
 	nonUserspaceProxySS.Spec.Template.Spec.Containers[0].Env = env
-	nonUserspaceProxySS.Spec.Template.Spec.InitContainers[0].Image = "tailscale/tailscale:v0.0.1"
 
 	// 1. Test that a ProxyClass with all fields set gets correctly applied
 	// to a Statefulset built from non-userspace proxy template.
@@ -157,20 +137,13 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 	wantSS.Spec.Template.Spec.ImagePullSecrets = proxyClassAllOpts.Spec.StatefulSet.Pod.ImagePullSecrets
 	wantSS.Spec.Template.Spec.NodeName = proxyClassAllOpts.Spec.StatefulSet.Pod.NodeName
 	wantSS.Spec.Template.Spec.NodeSelector = proxyClassAllOpts.Spec.StatefulSet.Pod.NodeSelector
-	wantSS.Spec.Template.Spec.Affinity = proxyClassAllOpts.Spec.StatefulSet.Pod.Affinity
 	wantSS.Spec.Template.Spec.Tolerations = proxyClassAllOpts.Spec.StatefulSet.Pod.Tolerations
 	wantSS.Spec.Template.Spec.Containers[0].SecurityContext = proxyClassAllOpts.Spec.StatefulSet.Pod.TailscaleContainer.SecurityContext
 	wantSS.Spec.Template.Spec.InitContainers[0].SecurityContext = proxyClassAllOpts.Spec.StatefulSet.Pod.TailscaleInitContainer.SecurityContext
 	wantSS.Spec.Template.Spec.Containers[0].Resources = proxyClassAllOpts.Spec.StatefulSet.Pod.TailscaleContainer.Resources
 	wantSS.Spec.Template.Spec.InitContainers[0].Resources = proxyClassAllOpts.Spec.StatefulSet.Pod.TailscaleInitContainer.Resources
-	wantSS.Spec.Template.Spec.InitContainers[0].Env = append(wantSS.Spec.Template.Spec.InitContainers[0].Env, []corev1.EnvVar{{Name: "foo", Value: "bar"}, {Name: "TS_USERSPACE", Value: "true"}, {Name: "bar"}}...)
-	wantSS.Spec.Template.Spec.Containers[0].Env = append(wantSS.Spec.Template.Spec.Containers[0].Env, []corev1.EnvVar{{Name: "foo", Value: "bar"}, {Name: "TS_USERSPACE", Value: "true"}, {Name: "bar"}}...)
-	wantSS.Spec.Template.Spec.Containers[0].Image = "ghcr.io/my-repo/tailscale:v0.01testsomething"
-	wantSS.Spec.Template.Spec.Containers[0].ImagePullPolicy = "IfNotPresent"
-	wantSS.Spec.Template.Spec.InitContainers[0].Image = "ghcr.io/my-repo/tailscale:v0.01testsomething"
-	wantSS.Spec.Template.Spec.InitContainers[0].ImagePullPolicy = "IfNotPresent"
 
-	gotSS := applyProxyClassToStatefulSet(proxyClassAllOpts, nonUserspaceProxySS.DeepCopy(), new(tailscaleSTSConfig), zl.Sugar())
+	gotSS := applyProxyClassToStatefulSet(proxyClassAllOpts, nonUserspaceProxySS.DeepCopy())
 	if diff := cmp.Diff(gotSS, wantSS); diff != "" {
 		t.Fatalf("Unexpected result applying ProxyClass with all fields set to a StatefulSet for non-userspace proxy (-got +want):\n%s", diff)
 	}
@@ -183,7 +156,7 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 	wantSS.ObjectMeta.Annotations = mergeMapKeys(wantSS.ObjectMeta.Annotations, proxyClassJustLabels.Spec.StatefulSet.Annotations)
 	wantSS.Spec.Template.Labels = proxyClassJustLabels.Spec.StatefulSet.Pod.Labels
 	wantSS.Spec.Template.Annotations = proxyClassJustLabels.Spec.StatefulSet.Pod.Annotations
-	gotSS = applyProxyClassToStatefulSet(proxyClassJustLabels, nonUserspaceProxySS.DeepCopy(), new(tailscaleSTSConfig), zl.Sugar())
+	gotSS = applyProxyClassToStatefulSet(proxyClassJustLabels, nonUserspaceProxySS.DeepCopy())
 	if diff := cmp.Diff(gotSS, wantSS); diff != "" {
 		t.Fatalf("Unexpected result applying ProxyClass with custom labels and annotations to a StatefulSet for non-userspace proxy (-got +want):\n%s", diff)
 	}
@@ -199,16 +172,12 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 	wantSS.Spec.Template.Spec.ImagePullSecrets = proxyClassAllOpts.Spec.StatefulSet.Pod.ImagePullSecrets
 	wantSS.Spec.Template.Spec.NodeName = proxyClassAllOpts.Spec.StatefulSet.Pod.NodeName
 	wantSS.Spec.Template.Spec.NodeSelector = proxyClassAllOpts.Spec.StatefulSet.Pod.NodeSelector
-	wantSS.Spec.Template.Spec.Affinity = proxyClassAllOpts.Spec.StatefulSet.Pod.Affinity
 	wantSS.Spec.Template.Spec.Tolerations = proxyClassAllOpts.Spec.StatefulSet.Pod.Tolerations
 	wantSS.Spec.Template.Spec.Containers[0].SecurityContext = proxyClassAllOpts.Spec.StatefulSet.Pod.TailscaleContainer.SecurityContext
 	wantSS.Spec.Template.Spec.Containers[0].Resources = proxyClassAllOpts.Spec.StatefulSet.Pod.TailscaleContainer.Resources
-	wantSS.Spec.Template.Spec.Containers[0].Env = append(wantSS.Spec.Template.Spec.Containers[0].Env, []corev1.EnvVar{{Name: "foo", Value: "bar"}, {Name: "TS_USERSPACE", Value: "true"}, {Name: "bar"}}...)
-	wantSS.Spec.Template.Spec.Containers[0].ImagePullPolicy = "IfNotPresent"
-	wantSS.Spec.Template.Spec.Containers[0].Image = "ghcr.io/my-repo/tailscale:v0.01testsomething"
-	gotSS = applyProxyClassToStatefulSet(proxyClassAllOpts, userspaceProxySS.DeepCopy(), new(tailscaleSTSConfig), zl.Sugar())
+	gotSS = applyProxyClassToStatefulSet(proxyClassAllOpts, userspaceProxySS.DeepCopy())
 	if diff := cmp.Diff(gotSS, wantSS); diff != "" {
-		t.Fatalf("Unexpected result applying ProxyClass with all options to a StatefulSet for a userspace proxy (-got +want):\n%s", diff)
+		t.Fatalf("Unexpected result applying ProxyClass with custom labels and annotations to a StatefulSet for a userspace proxy (-got +want):\n%s", diff)
 	}
 
 	// 4. Test that a ProxyClass with custom labels and annotations gets correctly applied
@@ -218,19 +187,10 @@ func Test_applyProxyClassToStatefulSet(t *testing.T) {
 	wantSS.ObjectMeta.Annotations = mergeMapKeys(wantSS.ObjectMeta.Annotations, proxyClassJustLabels.Spec.StatefulSet.Annotations)
 	wantSS.Spec.Template.Labels = proxyClassJustLabels.Spec.StatefulSet.Pod.Labels
 	wantSS.Spec.Template.Annotations = proxyClassJustLabels.Spec.StatefulSet.Pod.Annotations
-	gotSS = applyProxyClassToStatefulSet(proxyClassJustLabels, userspaceProxySS.DeepCopy(), new(tailscaleSTSConfig), zl.Sugar())
+	gotSS = applyProxyClassToStatefulSet(proxyClassJustLabels, userspaceProxySS.DeepCopy())
 	if diff := cmp.Diff(gotSS, wantSS); diff != "" {
 		t.Fatalf("Unexpected result applying ProxyClass with custom labels and annotations to a StatefulSet for a userspace proxy (-got +want):\n%s", diff)
 	}
-
-	// 5. Test that a ProxyClass with metrics enabled gets correctly applied to a StatefulSet.
-	wantSS = nonUserspaceProxySS.DeepCopy()
-	wantSS.Spec.Template.Spec.Containers[0].Env = append(wantSS.Spec.Template.Spec.Containers[0].Env, corev1.EnvVar{Name: "TS_TAILSCALED_EXTRA_ARGS", Value: "--debug=$(POD_IP):9001"})
-	wantSS.Spec.Template.Spec.Containers[0].Ports = []corev1.ContainerPort{{Name: "metrics", Protocol: "TCP", ContainerPort: 9001, HostPort: 9001}}
-	gotSS = applyProxyClassToStatefulSet(proxyClassMetrics, nonUserspaceProxySS.DeepCopy(), new(tailscaleSTSConfig), zl.Sugar())
-	if diff := cmp.Diff(gotSS, wantSS); diff != "" {
-		t.Fatalf("Unexpected result applying ProxyClass with metrics enabled to a StatefulSet (-got +want):\n%s", diff)
-	}
 }
 
 func mergeMapKeys(a, b map[string]string) map[string]string {
@@ -287,28 +247,28 @@ func Test_mergeStatefulSetLabelsOrAnnots(t *testing.T) {
 		},
 		{
 			name:    "no custom annots specified and none present in current annots, return current annots",
-			current: map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4"},
-			want:    map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4"},
+			current: map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
+			want:    map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
 			managed: tailscaleManagedAnnotations,
 		},
 		{
 			name:    "no custom annots specified, but some present in current annots, return tailscale managed annots only from the current annots",
-			current: map[string]string{"foo": "bar", "something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4"},
-			want:    map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4"},
+			current: map[string]string{"foo": "bar", "something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
+			want:    map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
 			managed: tailscaleManagedAnnotations,
 		},
 		{
 			name:    "custom annots specified, current annots only contain tailscale managed annots, return a union of both",
-			current: map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4"},
+			current: map[string]string{podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
 			custom:  map[string]string{"foo": "bar", "something.io/foo": "bar"},
-			want:    map[string]string{"foo": "bar", "something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4"},
+			want:    map[string]string{"foo": "bar", "something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
 			managed: tailscaleManagedAnnotations,
 		},
 		{
 			name:    "custom annots specified, current annots contain tailscale managed annots and custom annots, some of which are not present in the new custom annots, return a union of managed annots and the desired custom annots",
-			current: map[string]string{"foo": "bar", "something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4"},
+			current: map[string]string{"foo": "bar", "something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
 			custom:  map[string]string{"something.io/foo": "bar"},
-			want:    map[string]string{"something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4"},
+			want:    map[string]string{"something.io/foo": "bar", podAnnotationLastSetClusterIP: "1.2.3.4", podAnnotationLastSetHostname: "foo"},
 			managed: tailscaleManagedAnnotations,
 		},
 		{

cmd/k8s-operator/svc.go

@@ -7,7 +7,6 @@ package main
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"net/netip"
 	"slices"
@@ -16,32 +15,17 @@ import (
 
 	"go.uber.org/zap"
 	corev1 "k8s.io/api/core/v1"
-	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/tools/record"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 	tsoperator "tailscale.com/k8s-operator"
 	tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
-	"tailscale.com/net/dns/resolvconffile"
-	"tailscale.com/tstime"
 	"tailscale.com/util/clientmetric"
-	"tailscale.com/util/dnsname"
 	"tailscale.com/util/set"
 )
 
-const (
-	resolvConfPath       = "/etc/resolv.conf"
-	defaultClusterDomain = "cluster.local"
-
-	reasonProxyCreated = "ProxyCreated"
-	reasonProxyInvalid = "ProxyInvalid"
-	reasonProxyFailed  = "ProxyFailed"
-	reasonProxyPending = "ProxyPending"
-)
-
 type ServiceReconciler struct {
 	client.Client
 	ssr                   *tailscaleSTSReconciler
@@ -58,10 +42,6 @@ type ServiceReconciler struct {
 	managedEgressProxies set.Slice[types.UID]
 
 	recorder record.EventRecorder
-
-	tsNamespace string
-
-	clock tstime.Clock
 }
 
 var (
@@ -88,12 +68,6 @@ func childResourceLabels(name, ns, typ string) map[string]string {
 	}
 }
 
-func (a *ServiceReconciler) isTailscaleService(svc *corev1.Service) bool {
-	targetIP := tailnetTargetAnnotation(svc)
-	targetFQDN := svc.Annotations[AnnotationTailnetTargetFQDN]
-	return a.shouldExpose(svc) || targetIP != "" || targetFQDN != ""
-}
-
 func (a *ServiceReconciler) Reconcile(ctx context.Context, req reconcile.Request) (_ reconcile.Result, err error) {
 	logger := a.logger.With("service-ns", req.Namespace, "service-name", req.Name)
 	logger.Debugf("starting reconcile")
@@ -108,8 +82,9 @@ func (a *ServiceReconciler) Reconcile(ctx context.Context, req reconcile.Request
 	} else if err != nil {
 		return reconcile.Result{}, fmt.Errorf("failed to get svc: %w", err)
 	}
-
-	if !svc.DeletionTimestamp.IsZero() || !a.isTailscaleService(svc) {
+	targetIP := a.tailnetTargetAnnotation(svc)
+	targetFQDN := svc.Annotations[AnnotationTailnetTargetFQDN]
+	if !svc.DeletionTimestamp.IsZero() || !a.shouldExpose(svc) && targetIP == "" && targetFQDN == "" {
 		logger.Debugf("service is being deleted or is (no longer) referring to Tailscale ingress/egress, ensuring any created resources are cleaned up")
 		return reconcile.Result{}, a.maybeCleanup(ctx, logger, svc)
 	}
@@ -121,14 +96,7 @@ func (a *ServiceReconciler) Reconcile(ctx context.Context, req reconcile.Request
 //
 // This function is responsible for removing the finalizer from the service,
 // once all associated resources are gone.
-func (a *ServiceReconciler) maybeCleanup(ctx context.Context, logger *zap.SugaredLogger, svc *corev1.Service) (err error) {
-	oldSvcStatus := svc.Status.DeepCopy()
-	defer func() {
-		if !apiequality.Semantic.DeepEqual(oldSvcStatus, svc.Status) {
-			// An error encountered here should get returned by the Reconcile function.
-			err = errors.Join(err, a.Client.Status().Update(ctx, svc))
-		}
-	}()
+func (a *ServiceReconciler) maybeCleanup(ctx context.Context, logger *zap.SugaredLogger, svc *corev1.Service) error {
 	ix := slices.Index(svc.Finalizers, FinalizerName)
 	if ix < 0 {
 		logger.Debugf("no finalizer, nothing to do")
@@ -138,10 +106,6 @@ func (a *ServiceReconciler) maybeCleanup(ctx context.Context, logger *zap.Sugare
 		a.managedEgressProxies.Remove(svc.UID)
 		gaugeIngressProxies.Set(int64(a.managedIngressProxies.Len()))
 		gaugeEgressProxies.Set(int64(a.managedEgressProxies.Len()))
-
-		if !a.isTailscaleService(svc) {
-			tsoperator.RemoveServiceCondition(svc, tsapi.ProxyReady)
-		}
 		return nil
 	}
 
@@ -161,7 +125,7 @@ func (a *ServiceReconciler) maybeCleanup(ctx context.Context, logger *zap.Sugare
 	// exactly once at the very end of cleanup, because the final step of
 	// cleanup removes the tailscale finalizer, which will make all future
 	// reconciles exit early.
-	logger.Infof("unexposed Service from tailnet")
+	logger.Infof("unexposed service from tailnet")
 
 	a.mu.Lock()
 	defer a.mu.Unlock()
@@ -169,10 +133,6 @@ func (a *ServiceReconciler) maybeCleanup(ctx context.Context, logger *zap.Sugare
 	a.managedEgressProxies.Remove(svc.UID)
 	gaugeIngressProxies.Set(int64(a.managedIngressProxies.Len()))
 	gaugeEgressProxies.Set(int64(a.managedEgressProxies.Len()))
-
-	if !a.isTailscaleService(svc) {
-		tsoperator.RemoveServiceCondition(svc, tsapi.ProxyReady)
-	}
 	return nil
 }
 
@@ -181,15 +141,7 @@ func (a *ServiceReconciler) maybeCleanup(ctx context.Context, logger *zap.Sugare
 //
 // This function adds a finalizer to svc, ensuring that we can handle orderly
 // deprovisioning later.
-func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.SugaredLogger, svc *corev1.Service) (err error) {
-	oldSvcStatus := svc.Status.DeepCopy()
-	defer func() {
-		if !apiequality.Semantic.DeepEqual(oldSvcStatus, svc.Status) {
-			// An error encountered here should get returned by the Reconcile function.
-			err = errors.Join(err, a.Client.Status().Update(ctx, svc))
-		}
-	}()
-
+func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.SugaredLogger, svc *corev1.Service) error {
 	// Run for proxy config related validations here as opposed to running
 	// them earlier. This is to prevent cleanup being blocked on a
 	// misconfigured proxy param.
@@ -197,31 +149,30 @@ func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 		msg := fmt.Sprintf("unable to provision proxy resources: invalid config: %v", err)
 		a.recorder.Event(svc, corev1.EventTypeWarning, "INVALIDCONFIG", msg)
 		a.logger.Error(msg)
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyInvalid, msg, a.clock, logger)
 		return nil
 	}
 	if violations := validateService(svc); len(violations) > 0 {
 		msg := fmt.Sprintf("unable to provision proxy resources: invalid Service: %s", strings.Join(violations, ", "))
-		a.recorder.Event(svc, corev1.EventTypeWarning, "INVALIDSERVICE", msg)
+		a.recorder.Event(svc, corev1.EventTypeWarning, "INVALIDSERVCICE", msg)
 		a.logger.Error(msg)
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyInvalid, msg, a.clock, logger)
 		return nil
 	}
 
 	proxyClass := proxyClassForObject(svc)
 	if proxyClass != "" {
 		if ready, err := proxyClassIsReady(ctx, proxyClass, a.Client); err != nil {
-			errMsg := fmt.Errorf("error verifying ProxyClass for Service: %w", err)
-			tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyFailed, errMsg.Error(), a.clock, logger)
-			return errMsg
+			return fmt.Errorf("error verifying ProxyClass for Service: %w", err)
 		} else if !ready {
-			msg := fmt.Sprintf("ProxyClass %s specified for the Service, but is not (yet) Ready, waiting..", proxyClass)
-			tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyPending, msg, a.clock, logger)
-			logger.Info(msg)
+			logger.Infof("ProxyClass %s specified for the Service, but is not (yet) Ready, waiting..", proxyClass)
 			return nil
 		}
 	}
 
+	hostname, err := nameForService(svc)
+	if err != nil {
+		return err
+	}
+
 	if !slices.Contains(svc.Finalizers, FinalizerName) {
 		// This log line is printed exactly once during initial provisioning,
 		// because once the finalizer is in place this block gets skipped. So,
@@ -230,9 +181,7 @@ func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 		logger.Infof("exposing service over tailscale")
 		svc.Finalizers = append(svc.Finalizers, FinalizerName)
 		if err := a.Update(ctx, svc); err != nil {
-			errMsg := fmt.Errorf("failed to add finalizer: %w", err)
-			tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyFailed, errMsg.Error(), a.clock, logger)
-			return errMsg
+			return fmt.Errorf("failed to add finalizer: %w", err)
 		}
 	}
 	crl := childResourceLabels(svc.Name, svc.Namespace, "svc")
@@ -244,22 +193,18 @@ func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 	sts := &tailscaleSTSConfig{
 		ParentResourceName:  svc.Name,
 		ParentResourceUID:   string(svc.UID),
-		Hostname:            nameForService(svc),
+		Hostname:            hostname,
 		Tags:                tags,
 		ChildResourceLabels: crl,
-		ProxyClassName:      proxyClass,
+		ProxyClass:          proxyClass,
 	}
 
 	a.mu.Lock()
-	if a.shouldExposeClusterIP(svc) {
+	if a.shouldExpose(svc) {
 		sts.ClusterTargetIP = svc.Spec.ClusterIP
 		a.managedIngressProxies.Add(svc.UID)
 		gaugeIngressProxies.Set(int64(a.managedIngressProxies.Len()))
-	} else if a.shouldExposeDNSName(svc) {
-		sts.ClusterTargetDNSName = svc.Spec.ExternalName
-		a.managedIngressProxies.Add(svc.UID)
-		gaugeIngressProxies.Set(int64(a.managedIngressProxies.Len()))
-	} else if ip := tailnetTargetAnnotation(svc); ip != "" {
+	} else if ip := a.tailnetTargetAnnotation(svc); ip != "" {
 		sts.TailnetTargetIP = ip
 		a.managedEgressProxies.Add(svc.UID)
 		gaugeEgressProxies.Set(int64(a.managedEgressProxies.Len()))
@@ -276,31 +221,27 @@ func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 
 	var hsvc *corev1.Service
 	if hsvc, err = a.ssr.Provision(ctx, logger, sts); err != nil {
-		errMsg := fmt.Errorf("failed to provision: %w", err)
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyFailed, errMsg.Error(), a.clock, logger)
-		return errMsg
+		return fmt.Errorf("failed to provision: %w", err)
 	}
 
-	if sts.TailnetTargetIP != "" || sts.TailnetTargetFQDN != "" { // if an egress proxy
-		clusterDomain := retrieveClusterDomain(a.tsNamespace, logger)
-		headlessSvcName := hsvc.Name + "." + hsvc.Namespace + ".svc." + clusterDomain
+	if sts.TailnetTargetIP != "" || sts.TailnetTargetFQDN != "" {
+		// TODO (irbekrm): cluster.local is the default DNS name, but
+		// can be changed by users. Make this configurable or figure out
+		// how to discover the DNS name from within operator
+		headlessSvcName := hsvc.Name + "." + hsvc.Namespace + ".svc.cluster.local"
 		if svc.Spec.ExternalName != headlessSvcName || svc.Spec.Type != corev1.ServiceTypeExternalName {
 			svc.Spec.ExternalName = headlessSvcName
 			svc.Spec.Selector = nil
 			svc.Spec.Type = corev1.ServiceTypeExternalName
 			if err := a.Update(ctx, svc); err != nil {
-				errMsg := fmt.Errorf("failed to update service: %w", err)
-				tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyFailed, errMsg.Error(), a.clock, logger)
-				return errMsg
+				return fmt.Errorf("failed to update service: %w", err)
 			}
 		}
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionTrue, reasonProxyCreated, reasonProxyCreated, a.clock, logger)
 		return nil
 	}
 
-	if !isTailscaleLoadBalancerService(svc, a.isDefaultLoadBalancer) {
+	if !a.hasLoadBalancerClass(svc) {
 		logger.Debugf("service is not a LoadBalancer, so not updating ingress")
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionTrue, reasonProxyCreated, reasonProxyCreated, a.clock, logger)
 		return nil
 	}
 
@@ -309,23 +250,22 @@ func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 		return fmt.Errorf("failed to get device ID: %w", err)
 	}
 	if tsHost == "" {
-		msg := "no Tailscale hostname known yet, waiting for proxy pod to finish auth"
-		logger.Debug(msg)
+		logger.Debugf("no Tailscale hostname known yet, waiting for proxy pod to finish auth")
 		// No hostname yet. Wait for the proxy pod to auth.
 		svc.Status.LoadBalancer.Ingress = nil
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyPending, msg, a.clock, logger)
+		if err := a.Status().Update(ctx, svc); err != nil {
+			return fmt.Errorf("failed to update service status: %w", err)
+		}
 		return nil
 	}
 
-	logger.Debugf("setting Service LoadBalancer status to %q, %s", tsHost, strings.Join(tsIPs, ", "))
+	logger.Debugf("setting ingress to %q, %s", tsHost, strings.Join(tsIPs, ", "))
 	ingress := []corev1.LoadBalancerIngress{
 		{Hostname: tsHost},
 	}
 	clusterIPAddr, err := netip.ParseAddr(svc.Spec.ClusterIP)
 	if err != nil {
-		msg := fmt.Sprintf("failed to parse cluster IP: %v", err)
-		tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionFalse, reasonProxyFailed, msg, a.clock, logger)
-		return fmt.Errorf(msg)
+		return fmt.Errorf("failed to parse cluster IP: %w", err)
 	}
 	for _, ip := range tsIPs {
 		addr, err := netip.ParseAddr(ip)
@@ -337,64 +277,53 @@ func (a *ServiceReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
 		}
 	}
 	svc.Status.LoadBalancer.Ingress = ingress
-	tsoperator.SetServiceCondition(svc, tsapi.ProxyReady, metav1.ConditionTrue, reasonProxyCreated, reasonProxyCreated, a.clock, logger)
+	if err := a.Status().Update(ctx, svc); err != nil {
+		return fmt.Errorf("failed to update service status: %w", err)
+	}
 	return nil
 }
 
 func validateService(svc *corev1.Service) []string {
 	violations := make([]string, 0)
 	if svc.Annotations[AnnotationTailnetTargetFQDN] != "" && svc.Annotations[AnnotationTailnetTargetIP] != "" {
-		violations = append(violations, fmt.Sprintf("only one of annotations %s and %s can be set", AnnotationTailnetTargetIP, AnnotationTailnetTargetFQDN))
+		violations = append(violations, "only one of annotations %s and %s can be set", AnnotationTailnetTargetIP, AnnotationTailnetTargetFQDN)
 	}
 	if fqdn := svc.Annotations[AnnotationTailnetTargetFQDN]; fqdn != "" {
 		if !isMagicDNSName(fqdn) {
 			violations = append(violations, fmt.Sprintf("invalid value of annotation %s: %q does not appear to be a valid MagicDNS name", AnnotationTailnetTargetFQDN, fqdn))
 		}
 	}
-	svcName := nameForService(svc)
-	if err := dnsname.ValidLabel(svcName); err != nil {
-		if _, ok := svc.Annotations[AnnotationHostname]; ok {
-			violations = append(violations, fmt.Sprintf("invalid Tailscale hostname specified %q: %s", svcName, err))
-		} else {
-			violations = append(violations, fmt.Sprintf("invalid Tailscale hostname %q, use %q annotation to override: %s", svcName, AnnotationHostname, err))
-		}
-	}
 	return violations
 }
 
 func (a *ServiceReconciler) shouldExpose(svc *corev1.Service) bool {
-	return a.shouldExposeClusterIP(svc) || a.shouldExposeDNSName(svc)
-}
-
-func (a *ServiceReconciler) shouldExposeDNSName(svc *corev1.Service) bool {
-	return hasExposeAnnotation(svc) && svc.Spec.Type == corev1.ServiceTypeExternalName && svc.Spec.ExternalName != ""
-}
-
-func (a *ServiceReconciler) shouldExposeClusterIP(svc *corev1.Service) bool {
+	// Headless services can't be exposed, since there is no ClusterIP to
+	// forward to.
 	if svc.Spec.ClusterIP == "" || svc.Spec.ClusterIP == "None" {
 		return false
 	}
-	return isTailscaleLoadBalancerService(svc, a.isDefaultLoadBalancer) || hasExposeAnnotation(svc)
+
+	return a.hasLoadBalancerClass(svc) || a.hasExposeAnnotation(svc)
 }
 
-func isTailscaleLoadBalancerService(svc *corev1.Service, isDefaultLoadBalancer bool) bool {
+func (a *ServiceReconciler) hasLoadBalancerClass(svc *corev1.Service) bool {
 	return svc != nil &&
 		svc.Spec.Type == corev1.ServiceTypeLoadBalancer &&
 		(svc.Spec.LoadBalancerClass != nil && *svc.Spec.LoadBalancerClass == "tailscale" ||
-			svc.Spec.LoadBalancerClass == nil && isDefaultLoadBalancer)
+			svc.Spec.LoadBalancerClass == nil && a.isDefaultLoadBalancer)
 }
 
 // hasExposeAnnotation reports whether Service has the tailscale.com/expose
 // annotation set
-func hasExposeAnnotation(svc *corev1.Service) bool {
+func (a *ServiceReconciler) hasExposeAnnotation(svc *corev1.Service) bool {
 	return svc != nil && svc.Annotations[AnnotationExpose] == "true"
 }
 
-// tailnetTargetAnnotation returns the value of tailscale.com/tailnet-ip
+// hasTailnetTargetAnnotation returns the value of tailscale.com/tailnet-ip
 // annotation or of the deprecated tailscale.com/ts-tailnet-target-ip
 // annotation. If neither is set, it returns an empty string. If both are set,
 // it returns the value of the new annotation.
-func tailnetTargetAnnotation(svc *corev1.Service) string {
+func (a *ServiceReconciler) tailnetTargetAnnotation(svc *corev1.Service) string {
 	if svc == nil {
 		return ""
 	}
@@ -415,51 +344,3 @@ func proxyClassIsReady(ctx context.Context, name string, cl client.Client) (bool
 	}
 	return tsoperator.ProxyClassIsReady(proxyClass), nil
 }
-
-// retrieveClusterDomain determines and retrieves cluster domain i.e
-// (cluster.local) in which this Pod is running by parsing search domains in
-// /etc/resolv.conf. If an error is encountered at any point during the process,
-// defaults cluster domain to 'cluster.local'.
-func retrieveClusterDomain(namespace string, logger *zap.SugaredLogger) string {
-	logger.Infof("attempting to retrieve cluster domain..")
-	conf, err := resolvconffile.ParseFile(resolvConfPath)
-	if err != nil {
-		// Vast majority of clusters use the cluster.local domain, so it
-		// is probably better to fall back to that than error out.
-		logger.Infof("[unexpected] error parsing /etc/resolv.conf to determine cluster domain, defaulting to 'cluster.local'.")
-		return defaultClusterDomain
-	}
-	return clusterDomainFromResolverConf(conf, namespace, logger)
-}
-
-// clusterDomainFromResolverConf attempts to retrieve cluster domain from the provided resolver config.
-// It expects the first three search domains in the resolver config to be be ['<namespace>.svc.<cluster-domain>, svc.<cluster-domain>, <cluster-domain>, ...]
-// If the first three domains match the expected structure, it returns the third.
-// If the domains don't match the expected structure or an error is encountered, it defaults to 'cluster.local' domain.
-func clusterDomainFromResolverConf(conf *resolvconffile.Config, namespace string, logger *zap.SugaredLogger) string {
-	if len(conf.SearchDomains) < 3 {
-		logger.Infof("[unexpected] resolver config contains only %d search domains, at least three expected.\nDefaulting cluster domain to 'cluster.local'.")
-		return defaultClusterDomain
-	}
-	first := conf.SearchDomains[0]
-	if !strings.HasPrefix(string(first), namespace+".svc") {
-		logger.Infof("[unexpected] first search domain in resolver config is %s; expected %s.\nDefaulting cluster domain to 'cluster.local'.", first, namespace+".svc.<cluster-domain>")
-		return defaultClusterDomain
-	}
-	second := conf.SearchDomains[1]
-	if !strings.HasPrefix(string(second), "svc") {
-		logger.Infof("[unexpected] second search domain in resolver config is %s; expected 'svc.<cluster-domain>'.\nDefaulting cluster domain to 'cluster.local'.", second)
-		return defaultClusterDomain
-	}
-	// Trim the trailing dot for backwards compatibility purposes as the
-	// cluster domain was previously hardcoded to 'cluster.local' without a
-	// trailing dot.
-	probablyClusterDomain := strings.TrimPrefix(second.WithoutTrailingDot(), "svc.")
-	third := conf.SearchDomains[2]
-	if !strings.EqualFold(third.WithoutTrailingDot(), probablyClusterDomain) {
-		logger.Infof("[unexpected] expected resolver config to contain serch domains <namespace>.svc.<cluster-domain>, svc.<cluster-domain>, <cluster-domain>; got %s %s %s\n. Defaulting cluster domain to 'cluster.local'.", first, second, third)
-		return defaultClusterDomain
-	}
-	logger.Infof("Cluster domain %q extracted from resolver config", probablyClusterDomain)
-	return probablyClusterDomain
-}

cmd/k8s-operator/testutils_test.go

@@ -15,13 +15,11 @@ import (
 	"time"
 
 	"github.com/google/go-cmp/cmp"
-	"go.uber.org/zap"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/client-go/tools/record"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 	"tailscale.com/client/tailscale"
@@ -44,9 +42,9 @@ type configOpts struct {
 	tailnetTargetIP                                string
 	tailnetTargetFQDN                              string
 	clusterTargetIP                                string
-	clusterTargetDNS                               string
 	subnetRoutes                                   string
 	isExitNode                                     bool
+	shouldUseDeclarativeConfig                     bool // tailscaled in proxy should be configured using config file
 	confFileHash                                   string
 	serveConfig                                    *ipn.ServeConfig
 	shouldEnableForwardingClusterTrafficViaIngress bool
@@ -55,19 +53,14 @@ type configOpts struct {
 
 func expectedSTS(t *testing.T, cl client.Client, opts configOpts) *appsv1.StatefulSet {
 	t.Helper()
-	zl, err := zap.NewDevelopment()
-	if err != nil {
-		t.Fatal(err)
-	}
 	tsContainer := corev1.Container{
 		Name:  "tailscale",
 		Image: "tailscale/tailscale",
 		Env: []corev1.EnvVar{
 			{Name: "TS_USERSPACE", Value: "false"},
+			{Name: "TS_AUTH_ONCE", Value: "true"},
 			{Name: "POD_IP", ValueFrom: &corev1.EnvVarSource{FieldRef: &corev1.ObjectFieldSelector{APIVersion: "", FieldPath: "status.podIP"}, ResourceFieldRef: nil, ConfigMapKeyRef: nil, SecretKeyRef: nil}},
 			{Name: "TS_KUBE_SECRET", Value: opts.secretName},
-			{Name: "EXPERIMENTAL_TS_CONFIGFILE_PATH", Value: "/etc/tsconfig/tailscaled"},
-			{Name: "TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR", Value: "/etc/tsconfig"},
 		},
 		SecurityContext: &corev1.SecurityContext{
 			Capabilities: &corev1.Capabilities{
@@ -84,23 +77,36 @@ func expectedSTS(t *testing.T, cl client.Client, opts configOpts) *appsv1.Statef
 	}
 	annots := make(map[string]string)
 	var volumes []corev1.Volume
-	volumes = []corev1.Volume{
-		{
-			Name: "tailscaledconfig",
-			VolumeSource: corev1.VolumeSource{
-				Secret: &corev1.SecretVolumeSource{
-					SecretName: opts.secretName,
+	if opts.shouldUseDeclarativeConfig {
+		volumes = []corev1.Volume{
+			{
+				Name: "tailscaledconfig",
+				VolumeSource: corev1.VolumeSource{
+					Secret: &corev1.SecretVolumeSource{
+						SecretName: opts.secretName,
+						Items: []corev1.KeyToPath{
+							{
+								Key:  "tailscaled",
+								Path: "tailscaled",
+							},
+						},
+					},
 				},
 			},
-		},
-	}
-	tsContainer.VolumeMounts = []corev1.VolumeMount{{
-		Name:      "tailscaledconfig",
-		ReadOnly:  true,
-		MountPath: "/etc/tsconfig",
-	}}
-	if opts.confFileHash != "" {
+		}
+		tsContainer.VolumeMounts = []corev1.VolumeMount{{
+			Name:      "tailscaledconfig",
+			ReadOnly:  true,
+			MountPath: "/etc/tsconfig",
+		}}
+		tsContainer.Env = append(tsContainer.Env, corev1.EnvVar{
+			Name:  "EXPERIMENTAL_TS_CONFIGFILE_PATH",
+			Value: "/etc/tsconfig/tailscaled",
+		})
 		annots["tailscale.com/operator-last-set-config-file-hash"] = opts.confFileHash
+	} else {
+		tsContainer.Env = append(tsContainer.Env, corev1.EnvVar{Name: "TS_HOSTNAME", Value: opts.hostname})
+		annots["tailscale.com/operator-last-set-hostname"] = opts.hostname
 	}
 	if opts.firewallMode != "" {
 		tsContainer.Env = append(tsContainer.Env, corev1.EnvVar{
@@ -127,19 +133,15 @@ func expectedSTS(t *testing.T, cl client.Client, opts configOpts) *appsv1.Statef
 			Value: opts.clusterTargetIP,
 		})
 		annots["tailscale.com/operator-last-set-cluster-ip"] = opts.clusterTargetIP
-	} else if opts.clusterTargetDNS != "" {
-		tsContainer.Env = append(tsContainer.Env, corev1.EnvVar{
-			Name:  "TS_EXPERIMENTAL_DEST_DNS_NAME",
-			Value: opts.clusterTargetDNS,
-		})
-		annots["tailscale.com/operator-last-set-cluster-dns-name"] = opts.clusterTargetDNS
 	}
 	if opts.serveConfig != nil {
 		tsContainer.Env = append(tsContainer.Env, corev1.EnvVar{
 			Name:  "TS_SERVE_CONFIG",
 			Value: "/etc/tailscaled/serve-config",
 		})
-		volumes = append(volumes, corev1.Volume{Name: "serve-config", VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: opts.secretName, Items: []corev1.KeyToPath{{Key: "serve-config", Path: "serve-config"}}}}})
+		volumes = append(volumes, corev1.Volume{
+			Name: "serve-config", VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: opts.secretName, Items: []corev1.KeyToPath{{Path: "serve-config", Key: "serve-config"}}}},
+		})
 		tsContainer.VolumeMounts = append(tsContainer.VolumeMounts, corev1.VolumeMount{Name: "serve-config", ReadOnly: true, MountPath: "/etc/tailscaled"})
 	}
 	ss := &appsv1.StatefulSet{
@@ -182,8 +184,8 @@ func expectedSTS(t *testing.T, cl client.Client, opts configOpts) *appsv1.Statef
 						{
 							Name:    "sysctler",
 							Image:   "tailscale/tailscale",
-							Command: []string{"/bin/sh", "-c"},
-							Args:    []string{"sysctl -w net.ipv4.ip_forward=1 && if sysctl net.ipv6.conf.all.forwarding; then sysctl -w net.ipv6.conf.all.forwarding=1; fi"},
+							Command: []string{"/bin/sh"},
+							Args:    []string{"-c", "sysctl -w net.ipv4.ip_forward=1 net.ipv6.conf.all.forwarding=1"},
 							SecurityContext: &corev1.SecurityContext{
 								Privileged: ptr.To(true),
 							},
@@ -203,47 +205,28 @@ func expectedSTS(t *testing.T, cl client.Client, opts configOpts) *appsv1.Statef
 		if err := cl.Get(context.Background(), types.NamespacedName{Name: opts.proxyClass}, proxyClass); err != nil {
 			t.Fatalf("error getting ProxyClass: %v", err)
 		}
-		return applyProxyClassToStatefulSet(proxyClass, ss, new(tailscaleSTSConfig), zl.Sugar())
+		return applyProxyClassToStatefulSet(proxyClass, ss)
 	}
 	return ss
 }
 
 func expectedSTSUserspace(t *testing.T, cl client.Client, opts configOpts) *appsv1.StatefulSet {
-	t.Helper()
-	zl, err := zap.NewDevelopment()
-	if err != nil {
-		t.Fatal(err)
-	}
 	tsContainer := corev1.Container{
 		Name:  "tailscale",
 		Image: "tailscale/tailscale",
 		Env: []corev1.EnvVar{
 			{Name: "TS_USERSPACE", Value: "true"},
-			{Name: "POD_IP", ValueFrom: &corev1.EnvVarSource{FieldRef: &corev1.ObjectFieldSelector{APIVersion: "", FieldPath: "status.podIP"}, ResourceFieldRef: nil, ConfigMapKeyRef: nil, SecretKeyRef: nil}},
+			{Name: "TS_AUTH_ONCE", Value: "true"},
 			{Name: "TS_KUBE_SECRET", Value: opts.secretName},
-			{Name: "EXPERIMENTAL_TS_CONFIGFILE_PATH", Value: "/etc/tsconfig/tailscaled"},
-			{Name: "TS_EXPERIMENTAL_VERSIONED_CONFIG_DIR", Value: "/etc/tsconfig"},
+			{Name: "TS_HOSTNAME", Value: opts.hostname},
 			{Name: "TS_SERVE_CONFIG", Value: "/etc/tailscaled/serve-config"},
 		},
 		ImagePullPolicy: "Always",
-		VolumeMounts: []corev1.VolumeMount{
-			{Name: "tailscaledconfig", ReadOnly: true, MountPath: "/etc/tsconfig"},
-			{Name: "serve-config", ReadOnly: true, MountPath: "/etc/tailscaled"},
-		},
-	}
-	volumes := []corev1.Volume{
-		{
-			Name: "tailscaledconfig",
-			VolumeSource: corev1.VolumeSource{
-				Secret: &corev1.SecretVolumeSource{
-					SecretName: opts.secretName,
-				},
-			},
-		},
-		{Name: "serve-config",
-			VolumeSource: corev1.VolumeSource{
-				Secret: &corev1.SecretVolumeSource{SecretName: opts.secretName, Items: []corev1.KeyToPath{{Key: "serve-config", Path: "serve-config"}}}}},
+		VolumeMounts:    []corev1.VolumeMount{{Name: "serve-config", ReadOnly: true, MountPath: "/etc/tailscaled"}},
 	}
+	annots := make(map[string]string)
+	volumes := []corev1.Volume{{Name: "serve-config", VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: opts.secretName, Items: []corev1.KeyToPath{{Key: "serve-config", Path: "serve-config"}}}}}}
+	annots["tailscale.com/operator-last-set-hostname"] = opts.hostname
 	ss := &appsv1.StatefulSet{
 		TypeMeta: metav1.TypeMeta{
 			Kind:       "StatefulSet",
@@ -267,6 +250,7 @@ func expectedSTSUserspace(t *testing.T, cl client.Client, opts configOpts) *apps
 			ServiceName: opts.stsName,
 			Template: corev1.PodTemplateSpec{
 				ObjectMeta: metav1.ObjectMeta{
+					Annotations:                annots,
 					DeletionGracePeriodSeconds: ptr.To[int64](10),
 					Labels: map[string]string{
 						"tailscale.com/managed":              "true",
@@ -285,10 +269,6 @@ func expectedSTSUserspace(t *testing.T, cl client.Client, opts configOpts) *apps
 			},
 		},
 	}
-	ss.Spec.Template.Annotations = map[string]string{}
-	if opts.confFileHash != "" {
-		ss.Spec.Template.Annotations["tailscale.com/operator-last-set-config-file-hash"] = opts.confFileHash
-	}
 	// If opts.proxyClass is set, retrieve the ProxyClass and apply
 	// configuration from that to the StatefulSet.
 	if opts.proxyClass != "" {
@@ -297,13 +277,17 @@ func expectedSTSUserspace(t *testing.T, cl client.Client, opts configOpts) *apps
 		if err := cl.Get(context.Background(), types.NamespacedName{Name: opts.proxyClass}, proxyClass); err != nil {
 			t.Fatalf("error getting ProxyClass: %v", err)
 		}
-		return applyProxyClassToStatefulSet(proxyClass, ss, new(tailscaleSTSConfig), zl.Sugar())
+		return applyProxyClassToStatefulSet(proxyClass, ss)
 	}
 	return ss
 }
 
 func expectedHeadlessService(name string, parentType string) *corev1.Service {
 	return &corev1.Service{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "Service",
+			APIVersion: "v1",
+		},
 		ObjectMeta: metav1.ObjectMeta{
 			Name:         name,
 			GenerateName: "ts-test-",
@@ -319,15 +303,23 @@ func expectedHeadlessService(name string, parentType string) *corev1.Service {
 			Selector: map[string]string{
 				"app": "1234-UID",
 			},
-			ClusterIP:      "None",
-			IPFamilyPolicy: ptr.To(corev1.IPFamilyPolicyPreferDualStack),
+			ClusterIP: "None",
 		},
 	}
 }
 
-func expectedSecret(t *testing.T, cl client.Client, opts configOpts) *corev1.Secret {
+func expectedSecret(t *testing.T, opts configOpts) *corev1.Secret {
 	t.Helper()
+	labels := map[string]string{
+		"tailscale.com/managed":              "true",
+		"tailscale.com/parent-resource":      "test",
+		"tailscale.com/parent-resource-type": opts.parentType,
+	}
 	s := &corev1.Secret{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "Secret",
+			APIVersion: "v1",
+		},
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      opts.secretName,
 			Namespace: "operator-ns",
@@ -340,61 +332,37 @@ func expectedSecret(t *testing.T, cl client.Client, opts configOpts) *corev1.Sec
 		}
 		mak.Set(&s.StringData, "serve-config", string(serveConfigBs))
 	}
-	conf := &ipn.ConfigVAlpha{
-		Version:      "alpha0",
-		AcceptDNS:    "false",
-		Hostname:     &opts.hostname,
-		Locked:       "false",
-		AuthKey:      ptr.To("secret-authkey"),
-		AcceptRoutes: "false",
-	}
-	if opts.proxyClass != "" {
-		t.Logf("applying configuration from ProxyClass %s", opts.proxyClass)
-		proxyClass := new(tsapi.ProxyClass)
-		if err := cl.Get(context.Background(), types.NamespacedName{Name: opts.proxyClass}, proxyClass); err != nil {
-			t.Fatalf("error getting ProxyClass: %v", err)
-		}
-		if proxyClass.Spec.TailscaleConfig != nil && proxyClass.Spec.TailscaleConfig.AcceptRoutes {
-			conf.AcceptRoutes = "true"
-		}
-	}
-	var routes []netip.Prefix
-	if opts.subnetRoutes != "" || opts.isExitNode {
-		r := opts.subnetRoutes
-		if opts.isExitNode {
-			r = "0.0.0.0/0,::/0," + r
-		}
-		for _, rr := range strings.Split(r, ",") {
-			prefix, err := netip.ParsePrefix(rr)
-			if err != nil {
-				t.Fatal(err)
-			}
-			routes = append(routes, prefix)
-		}
-	}
-	conf.AdvertiseRoutes = routes
-	b, err := json.Marshal(conf)
-	if err != nil {
-		t.Fatalf("error marshalling tailscaled config")
-	}
-	if opts.tailnetTargetFQDN != "" || opts.tailnetTargetIP != "" {
-		conf.NoStatefulFiltering = "true"
+	if !opts.shouldUseDeclarativeConfig {
+		mak.Set(&s.StringData, "authkey", "secret-authkey")
+		labels["tailscale.com/parent-resource-ns"] = opts.namespace
 	} else {
-		conf.NoStatefulFiltering = "false"
-	}
-	bn, err := json.Marshal(conf)
-	if err != nil {
-		t.Fatalf("error marshalling tailscaled config")
-	}
-	mak.Set(&s.StringData, "tailscaled", string(b))
-	mak.Set(&s.StringData, "cap-95.hujson", string(bn))
-	labels := map[string]string{
-		"tailscale.com/managed":              "true",
-		"tailscale.com/parent-resource":      "test",
-		"tailscale.com/parent-resource-ns":   "default",
-		"tailscale.com/parent-resource-type": opts.parentType,
-	}
-	if opts.parentType == "connector" {
+		conf := &ipn.ConfigVAlpha{
+			Version:   "alpha0",
+			AcceptDNS: "false",
+			Hostname:  &opts.hostname,
+			Locked:    "false",
+			AuthKey:   ptr.To("secret-authkey"),
+		}
+		var routes []netip.Prefix
+		if opts.subnetRoutes != "" || opts.isExitNode {
+			r := opts.subnetRoutes
+			if opts.isExitNode {
+				r = "0.0.0.0/0,::/0," + r
+			}
+			for _, rr := range strings.Split(r, ",") {
+				prefix, err := netip.ParsePrefix(rr)
+				if err != nil {
+					t.Fatal(err)
+				}
+				routes = append(routes, prefix)
+			}
+		}
+		conf.AdvertiseRoutes = routes
+		b, err := json.Marshal(conf)
+		if err != nil {
+			t.Fatalf("error marshalling tailscaled config")
+		}
+		mak.Set(&s.StringData, "tailscaled", string(b))
 		labels["tailscale.com/parent-resource-ns"] = "" // Connector is cluster scoped
 	}
 	s.Labels = labels
@@ -456,13 +424,7 @@ func mustUpdateStatus[T any, O ptrObject[T]](t *testing.T, client client.Client,
 	}
 }
 
-// expectEqual accepts a Kubernetes object and a Kubernetes client. It tests
-// whether an object with equivalent contents can be retrieved by the passed
-// client. If you want to NOT test some object fields for equality, use the
-// modify func to ensure that they are removed from the cluster object and the
-// object passed as 'want'. If no such modifications are needed, you can pass
-// nil in place of the modify function.
-func expectEqual[T any, O ptrObject[T]](t *testing.T, client client.Client, want O, modifier func(O)) {
+func expectEqual[T any, O ptrObject[T]](t *testing.T, client client.Client, want O) {
 	t.Helper()
 	got := O(new(T))
 	if err := client.Get(context.Background(), types.NamespacedName{
@@ -476,10 +438,6 @@ func expectEqual[T any, O ptrObject[T]](t *testing.T, client client.Client, want
 	// so just remove it from both got and want.
 	got.SetResourceVersion("")
 	want.SetResourceVersion("")
-	if modifier != nil {
-		modifier(want)
-		modifier(got)
-	}
 	if diff := cmp.Diff(got, want); diff != "" {
 		t.Fatalf("unexpected object (-got +want):\n%s", diff)
 	}
@@ -533,34 +491,6 @@ func expectRequeue(t *testing.T, sr reconcile.Reconciler, ns, name string) {
 	}
 }
 
-// expectEvents accepts a test recorder and a list of events, tests that expected
-// events are sent down the recorder's channel. Waits for 5s for each event.
-func expectEvents(t *testing.T, rec *record.FakeRecorder, wantsEvents []string) {
-	t.Helper()
-	// Events are not expected to arrive in order.
-	seenEvents := make([]string, 0)
-	for range len(wantsEvents) {
-		timer := time.NewTimer(time.Second * 5)
-		defer timer.Stop()
-		select {
-		case gotEvent := <-rec.Events:
-			found := false
-			for _, wantEvent := range wantsEvents {
-				if wantEvent == gotEvent {
-					found = true
-					seenEvents = append(seenEvents, gotEvent)
-					break
-				}
-			}
-			if !found {
-				t.Errorf("got unexpected event %q, expected events: %+#v", gotEvent, wantsEvents)
-			}
-		case <-timer.C:
-			t.Errorf("timeout waiting for an event, wants events %#+v, got events %+#v", wantsEvents, seenEvents)
-		}
-	}
-}
-
 type fakeTSClient struct {
 	sync.Mutex
 	keyRequests []tailscale.KeyCapabilities
@@ -604,41 +534,3 @@ func (c *fakeTSClient) Deleted() []string {
 	defer c.Unlock()
 	return c.deleted
 }
-
-// removeHashAnnotation can be used to remove declarative tailscaled config hash
-// annotation from proxy StatefulSets to make the tests more maintainable (so
-// that we don't have to change the annotation in each test case after any
-// change to the configfile contents).
-func removeHashAnnotation(sts *appsv1.StatefulSet) {
-	delete(sts.Spec.Template.Annotations, podAnnotationLastSetConfigFileHash)
-}
-
-func removeAuthKeyIfExistsModifier(t *testing.T) func(s *corev1.Secret) {
-	return func(secret *corev1.Secret) {
-		t.Helper()
-		if len(secret.StringData["tailscaled"]) != 0 {
-			conf := &ipn.ConfigVAlpha{}
-			if err := json.Unmarshal([]byte(secret.StringData["tailscaled"]), conf); err != nil {
-				t.Fatalf("error unmarshalling 'tailscaled' contents: %v", err)
-			}
-			conf.AuthKey = nil
-			b, err := json.Marshal(conf)
-			if err != nil {
-				t.Fatalf("error marshalling updated 'tailscaled' config: %v", err)
-			}
-			mak.Set(&secret.StringData, "tailscaled", string(b))
-		}
-		if len(secret.StringData["cap-95.hujson"]) != 0 {
-			conf := &ipn.ConfigVAlpha{}
-			if err := json.Unmarshal([]byte(secret.StringData["cap-95.hujson"]), conf); err != nil {
-				t.Fatalf("error umarshalling 'cap-95.hujson' contents: %v", err)
-			}
-			conf.AuthKey = nil
-			b, err := json.Marshal(conf)
-			if err != nil {
-				t.Fatalf("error marshalling 'cap-95.huson' contents: %v", err)
-			}
-			mak.Set(&secret.StringData, "cap-95.hujson", string(b))
-		}
-	}
-}

cmd/natc/natc.go

@@ -1,567 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-// The natc command is a work-in-progress implementation of a NAT based
-// connector for Tailscale. It is intended to be used to route traffic to a
-// specific domain through a specific node.
-package main
-
-import (
-	"context"
-	"encoding/binary"
-	"errors"
-	"flag"
-	"fmt"
-	"log"
-	"math/rand/v2"
-	"net"
-	"net/http"
-	"net/netip"
-	"os"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/gaissmai/bart"
-	"github.com/inetaf/tcpproxy"
-	"github.com/peterbourgon/ff/v3"
-	"golang.org/x/net/dns/dnsmessage"
-	"tailscale.com/client/tailscale"
-	"tailscale.com/envknob"
-	"tailscale.com/hostinfo"
-	"tailscale.com/ipn"
-	"tailscale.com/net/netutil"
-	"tailscale.com/syncs"
-	"tailscale.com/tailcfg"
-	"tailscale.com/tsnet"
-	"tailscale.com/tsweb"
-	"tailscale.com/util/dnsname"
-	"tailscale.com/util/mak"
-)
-
-func main() {
-	hostinfo.SetApp("natc")
-	if !envknob.UseWIPCode() {
-		log.Fatal("cmd/natc is a work in progress and has not been security reviewed;\nits use requires TAILSCALE_USE_WIP_CODE=1 be set in the environment for now.")
-	}
-
-	// Parse flags
-	fs := flag.NewFlagSet("natc", flag.ExitOnError)
-	var (
-		debugPort       = fs.Int("debug-port", 8893, "Listening port for debug/metrics endpoint")
-		hostname        = fs.String("hostname", "", "Hostname to register the service under")
-		siteID          = fs.Uint("site-id", 1, "an integer site ID to use for the ULA prefix which allows for multiple proxies to act in a HA configuration")
-		v4PfxStr        = fs.String("v4-pfx", "100.64.1.0/24", "comma-separated list of IPv4 prefixes to advertise")
-		verboseTSNet    = fs.Bool("verbose-tsnet", false, "enable verbose logging in tsnet")
-		printULA        = fs.Bool("print-ula", false, "print the ULA prefix and exit")
-		ignoreDstPfxStr = fs.String("ignore-destinations", "", "comma-separated list of prefixes to ignore")
-		wgPort          = fs.Uint("wg-port", 0, "udp port for wireguard and peer to peer traffic")
-	)
-	ff.Parse(fs, os.Args[1:], ff.WithEnvVarPrefix("TS_NATC"))
-
-	if *printULA {
-		fmt.Println(ula(uint16(*siteID)))
-		return
-	}
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-	if *siteID == 0 {
-		log.Fatalf("site-id must be set")
-	} else if *siteID > 0xffff {
-		log.Fatalf("site-id must be in the range [0, 65535]")
-	}
-
-	var ignoreDstTable *bart.Table[bool]
-	for _, s := range strings.Split(*ignoreDstPfxStr, ",") {
-		s := strings.TrimSpace(s)
-		if s == "" {
-			continue
-		}
-		if ignoreDstTable == nil {
-			ignoreDstTable = &bart.Table[bool]{}
-		}
-		pfx, err := netip.ParsePrefix(s)
-		if err != nil {
-			log.Fatalf("unable to parse prefix: %v", err)
-		}
-		if pfx.Masked() != pfx {
-			log.Fatalf("prefix %v is not normalized (bits are set outside the mask)", pfx)
-		}
-		ignoreDstTable.Insert(pfx, true)
-	}
-	var v4Prefixes []netip.Prefix
-	for _, s := range strings.Split(*v4PfxStr, ",") {
-		p := netip.MustParsePrefix(strings.TrimSpace(s))
-		if p.Masked() != p {
-			log.Fatalf("v4 prefix %v is not a masked prefix", p)
-		}
-		v4Prefixes = append(v4Prefixes, p)
-	}
-	if len(v4Prefixes) == 0 {
-		log.Fatalf("no v4 prefixes specified")
-	}
-	dnsAddr := v4Prefixes[0].Addr()
-	ts := &tsnet.Server{
-		Hostname: *hostname,
-	}
-	if *wgPort != 0 {
-		if *wgPort >= 1<<16 {
-			log.Fatalf("wg-port must be in the range [0, 65535]")
-		}
-		ts.Port = uint16(*wgPort)
-	}
-	defer ts.Close()
-	if *verboseTSNet {
-		ts.Logf = log.Printf
-	}
-
-	// Start special-purpose listeners: dns, http promotion, debug server
-	if *debugPort != 0 {
-		mux := http.NewServeMux()
-		tsweb.Debugger(mux)
-		dln, err := ts.Listen("tcp", fmt.Sprintf(":%d", *debugPort))
-		if err != nil {
-			log.Fatalf("failed listening on debug port: %v", err)
-		}
-		defer dln.Close()
-		go func() {
-			log.Fatalf("debug serve: %v", http.Serve(dln, mux))
-		}()
-	}
-	lc, err := ts.LocalClient()
-	if err != nil {
-		log.Fatalf("LocalClient() failed: %v", err)
-	}
-	if _, err := ts.Up(ctx); err != nil {
-		log.Fatalf("ts.Up: %v", err)
-	}
-
-	c := &connector{
-		ts:         ts,
-		lc:         lc,
-		dnsAddr:    dnsAddr,
-		v4Ranges:   v4Prefixes,
-		v6ULA:      ula(uint16(*siteID)),
-		ignoreDsts: ignoreDstTable,
-	}
-	c.run(ctx)
-}
-
-type connector struct {
-	// ts is the tsnet.Server used to host the connector.
-	ts *tsnet.Server
-	// lc is the LocalClient used to interact with the tsnet.Server hosting this
-	// connector.
-	lc *tailscale.LocalClient
-
-	// dnsAddr is the IPv4 address to listen on for DNS requests. It is used to
-	// prevent the app connector from assigning it to a domain.
-	dnsAddr netip.Addr
-
-	// v4Ranges is the list of IPv4 ranges to advertise and assign addresses from.
-	// These are masked prefixes.
-	v4Ranges []netip.Prefix
-	// v6ULA is the ULA prefix used by the app connector to assign IPv6 addresses.
-	v6ULA netip.Prefix
-
-	perPeerMap syncs.Map[tailcfg.NodeID, *perPeerState]
-
-	// ignoreDsts is initialized at start up with the contents of --ignore-destinations (if none it is nil)
-	// It is never mutated, only used for lookups.
-	// Users who want to natc a DNS wildcard but not every address record in that domain can supply the
-	// exceptions in --ignore-destinations. When we receive a dns request we will look up the fqdn
-	// and if any of the ip addresses in response to the lookup match any 'ignore destinations' prefix we will
-	// return a dns response that contains the ip addresses we discovered with the lookup (ie not the
-	// natc behavior, which would return a dummy ip address pointing at natc).
-	ignoreDsts *bart.Table[bool]
-}
-
-// v6ULA is the ULA prefix used by the app connector to assign IPv6 addresses.
-// The 8th and 9th bytes are used to encode the site ID which allows for
-// multiple proxies to act in a HA configuration.
-// mnemonic: a99c = appc
-var v6ULA = netip.MustParsePrefix("fd7a:115c:a1e0:a99c::/64")
-
-func ula(siteID uint16) netip.Prefix {
-	as16 := v6ULA.Addr().As16()
-	as16[8] = byte(siteID >> 8)
-	as16[9] = byte(siteID)
-	return netip.PrefixFrom(netip.AddrFrom16(as16), 64+16)
-}
-
-// run runs the connector.
-//
-// The passed in context is only used for the initial setup. The connector runs
-// forever.
-func (c *connector) run(ctx context.Context) {
-	if _, err := c.lc.EditPrefs(ctx, &ipn.MaskedPrefs{
-		AdvertiseRoutesSet: true,
-		Prefs: ipn.Prefs{
-			AdvertiseRoutes: append(c.v4Ranges, c.v6ULA),
-		},
-	}); err != nil {
-		log.Fatalf("failed to advertise routes: %v", err)
-	}
-	c.ts.RegisterFallbackTCPHandler(c.handleTCPFlow)
-	c.serveDNS()
-}
-
-func (c *connector) serveDNS() {
-	pc, err := c.ts.ListenPacket("udp", net.JoinHostPort(c.dnsAddr.String(), "53"))
-	if err != nil {
-		log.Fatalf("failed listening on port 53: %v", err)
-	}
-	defer pc.Close()
-	log.Printf("Listening for DNS on %s", pc.LocalAddr().String())
-	for {
-		buf := make([]byte, 1500)
-		n, addr, err := pc.ReadFrom(buf)
-		if err != nil {
-			if errors.Is(err, net.ErrClosed) {
-				return
-			}
-			log.Printf("serveDNS.ReadFrom failed: %v", err)
-			continue
-		}
-		go c.handleDNS(pc, buf[:n], addr.(*net.UDPAddr))
-	}
-}
-
-func lookupDestinationIP(domain string) ([]netip.Addr, error) {
-	netIPs, err := net.LookupIP(domain)
-	if err != nil {
-		var dnsError *net.DNSError
-		if errors.As(err, &dnsError) && dnsError.IsNotFound {
-			return nil, nil
-		} else {
-			return nil, err
-		}
-	}
-	var addrs []netip.Addr
-	for _, ip := range netIPs {
-		a, ok := netip.AddrFromSlice(ip)
-		if ok {
-			addrs = append(addrs, a)
-		}
-	}
-	return addrs, nil
-}
-
-// handleDNS handles a DNS request to the app connector.
-// It generates a response based on the request and the node that sent it.
-//
-// Each node is assigned a unique pair of IP addresses for each domain it
-// queries. This assignment is done lazily and is not persisted across restarts.
-// A per-peer assignment allows the connector to reuse a limited number of IP
-// addresses across multiple nodes and domains. It also allows for clear
-// failover behavior when an app connector is restarted.
-//
-// This assignment later allows the connector to determine where to forward
-// traffic based on the destination IP address.
-func (c *connector) handleDNS(pc net.PacketConn, buf []byte, remoteAddr *net.UDPAddr) {
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-	defer cancel()
-	who, err := c.lc.WhoIs(ctx, remoteAddr.String())
-	if err != nil {
-		log.Printf("HandleDNS: WhoIs failed: %v\n", err)
-		return
-	}
-
-	var msg dnsmessage.Message
-	err = msg.Unpack(buf)
-	if err != nil {
-		log.Printf("HandleDNS: dnsmessage unpack failed: %v\n ", err)
-		return
-	}
-
-	// If there are destination ips that we don't want to route, we
-	// have to do a dns lookup here to find the destination ip.
-	if c.ignoreDsts != nil {
-		if len(msg.Questions) > 0 {
-			q := msg.Questions[0]
-			switch q.Type {
-			case dnsmessage.TypeAAAA, dnsmessage.TypeA:
-				dstAddrs, err := lookupDestinationIP(q.Name.String())
-				if err != nil {
-					log.Printf("HandleDNS: lookup destination failed: %v\n ", err)
-					return
-				}
-				if c.ignoreDestination(dstAddrs) {
-					bs, err := dnsResponse(&msg, dstAddrs)
-					// TODO (fran): treat as SERVFAIL
-					if err != nil {
-						log.Printf("HandleDNS: generate ignore response failed: %v\n", err)
-						return
-					}
-					_, err = pc.WriteTo(bs, remoteAddr)
-					if err != nil {
-						log.Printf("HandleDNS: write failed: %v\n", err)
-					}
-					return
-				}
-			}
-		}
-	}
-	// None of the destination IP addresses match an ignore destination prefix, do
-	// the natc thing.
-
-	resp, err := c.generateDNSResponse(&msg, who.Node.ID)
-	// TODO (fran): treat as SERVFAIL
-	if err != nil {
-		log.Printf("HandleDNS: connector handling failed: %v\n", err)
-		return
-	}
-	// TODO (fran): treat as NXDOMAIN
-	if len(resp) == 0 {
-		return
-	}
-	// This connector handled the DNS request
-	_, err = pc.WriteTo(resp, remoteAddr)
-	if err != nil {
-		log.Printf("HandleDNS: write failed: %v\n", err)
-	}
-}
-
-// tsMBox is the mailbox used in SOA records.
-// The convention is to replace the @ symbol with a dot.
-// So in this case, the mailbox is support.tailscale.com. with the trailing dot
-// to indicate that it is a fully qualified domain name.
-var tsMBox = dnsmessage.MustNewName("support.tailscale.com.")
-
-// generateDNSResponse generates a DNS response for the given request. The from
-// argument is the NodeID of the node that sent the request.
-func (c *connector) generateDNSResponse(req *dnsmessage.Message, from tailcfg.NodeID) ([]byte, error) {
-	pm, _ := c.perPeerMap.LoadOrStore(from, &perPeerState{c: c})
-	var addrs []netip.Addr
-	if len(req.Questions) > 0 {
-		switch req.Questions[0].Type {
-		case dnsmessage.TypeAAAA, dnsmessage.TypeA:
-			var err error
-			addrs, err = pm.ipForDomain(req.Questions[0].Name.String())
-			if err != nil {
-				return nil, err
-			}
-		}
-	}
-	return dnsResponse(req, addrs)
-}
-
-// dnsResponse makes a DNS response for the natc. If the dnsmessage is requesting TypeAAAA
-// or TypeA the provided addrs of the requested type will be used.
-func dnsResponse(req *dnsmessage.Message, addrs []netip.Addr) ([]byte, error) {
-	b := dnsmessage.NewBuilder(nil,
-		dnsmessage.Header{
-			ID:            req.Header.ID,
-			Response:      true,
-			Authoritative: true,
-		})
-	b.EnableCompression()
-
-	if len(req.Questions) == 0 {
-		return b.Finish()
-	}
-	q := req.Questions[0]
-	if err := b.StartQuestions(); err != nil {
-		return nil, err
-	}
-	if err := b.Question(q); err != nil {
-		return nil, err
-	}
-	if err := b.StartAnswers(); err != nil {
-		return nil, err
-	}
-	switch q.Type {
-	case dnsmessage.TypeAAAA, dnsmessage.TypeA:
-		want6 := q.Type == dnsmessage.TypeAAAA
-		for _, ip := range addrs {
-			if want6 != ip.Is6() {
-				continue
-			}
-			if want6 {
-				if err := b.AAAAResource(
-					dnsmessage.ResourceHeader{Name: q.Name, Class: q.Class, TTL: 5},
-					dnsmessage.AAAAResource{AAAA: ip.As16()},
-				); err != nil {
-					return nil, err
-				}
-			} else {
-				if err := b.AResource(
-					dnsmessage.ResourceHeader{Name: q.Name, Class: q.Class, TTL: 5},
-					dnsmessage.AResource{A: ip.As4()},
-				); err != nil {
-					return nil, err
-				}
-			}
-		}
-	case dnsmessage.TypeSOA:
-		if err := b.SOAResource(
-			dnsmessage.ResourceHeader{Name: q.Name, Class: q.Class, TTL: 120},
-			dnsmessage.SOAResource{NS: q.Name, MBox: tsMBox, Serial: 2023030600,
-				Refresh: 120, Retry: 120, Expire: 120, MinTTL: 60},
-		); err != nil {
-			return nil, err
-		}
-	case dnsmessage.TypeNS:
-		if err := b.NSResource(
-			dnsmessage.ResourceHeader{Name: q.Name, Class: q.Class, TTL: 120},
-			dnsmessage.NSResource{NS: tsMBox},
-		); err != nil {
-			return nil, err
-		}
-	}
-	return b.Finish()
-}
-
-// handleTCPFlow handles a TCP flow from the given source to the given
-// destination. It uses the source address to determine the node that sent the
-// request and the destination address to determine the domain that the request
-// is for based on the IP address assigned to the destination in the DNS
-// response.
-func (c *connector) handleTCPFlow(src, dst netip.AddrPort) (handler func(net.Conn), intercept bool) {
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-	defer cancel()
-	who, err := c.lc.WhoIs(ctx, src.Addr().String())
-	cancel()
-	if err != nil {
-		log.Printf("HandleTCPFlow: WhoIs failed: %v\n", err)
-		return nil, false
-	}
-
-	from := who.Node.ID
-	ps, ok := c.perPeerMap.Load(from)
-	if !ok {
-		log.Printf("handleTCPFlow: no perPeerState for %v", from)
-		return nil, false
-	}
-	domain, ok := ps.domainForIP(dst.Addr())
-	if !ok {
-		log.Printf("handleTCPFlow: no domain for IP %v\n", dst.Addr())
-		return nil, false
-	}
-	return func(conn net.Conn) {
-		proxyTCPConn(conn, domain)
-	}, true
-}
-
-// ignoreDestination reports whether any of the provided dstAddrs match the prefixes configured
-// in --ignore-destinations
-func (c *connector) ignoreDestination(dstAddrs []netip.Addr) bool {
-	for _, a := range dstAddrs {
-		if _, ok := c.ignoreDsts.Get(a); ok {
-			return true
-		}
-	}
-	return false
-}
-
-func proxyTCPConn(c net.Conn, dest string) {
-	addrPortStr := c.LocalAddr().String()
-	_, port, err := net.SplitHostPort(addrPortStr)
-	if err != nil {
-		log.Printf("tcpRoundRobinHandler.Handle: bogus addrPort %q", addrPortStr)
-		c.Close()
-		return
-	}
-
-	p := &tcpproxy.Proxy{
-		ListenFunc: func(net, laddr string) (net.Listener, error) {
-			return netutil.NewOneConnListener(c, nil), nil
-		},
-	}
-	p.AddRoute(addrPortStr, &tcpproxy.DialProxy{
-		Addr: fmt.Sprintf("%s:%s", dest, port),
-	})
-	p.Start()
-}
-
-// perPeerState holds the state for a single peer.
-type perPeerState struct {
-	c *connector
-
-	mu           sync.Mutex
-	domainToAddr map[string][]netip.Addr
-	addrToDomain *bart.Table[string]
-}
-
-// domainForIP returns the domain name assigned to the given IP address and
-// whether it was found.
-func (ps *perPeerState) domainForIP(ip netip.Addr) (_ string, ok bool) {
-	ps.mu.Lock()
-	defer ps.mu.Unlock()
-	return ps.addrToDomain.Get(ip)
-}
-
-// ipForDomain assigns a pair of unique IP addresses for the given domain and
-// returns them. The first address is an IPv4 address and the second is an IPv6
-// address. If the domain already has assigned addresses, it returns them.
-func (ps *perPeerState) ipForDomain(domain string) ([]netip.Addr, error) {
-	fqdn, err := dnsname.ToFQDN(domain)
-	if err != nil {
-		return nil, err
-	}
-	domain = fqdn.WithoutTrailingDot()
-
-	ps.mu.Lock()
-	defer ps.mu.Unlock()
-	if addrs, ok := ps.domainToAddr[domain]; ok {
-		return addrs, nil
-	}
-	addrs := ps.assignAddrsLocked(domain)
-	return addrs, nil
-}
-
-// isIPUsedLocked reports whether the given IP address is already assigned to a
-// domain.
-// ps.mu must be held.
-func (ps *perPeerState) isIPUsedLocked(ip netip.Addr) bool {
-	_, ok := ps.addrToDomain.Get(ip)
-	return ok
-}
-
-// unusedIPv4Locked returns an unused IPv4 address from the available ranges.
-func (ps *perPeerState) unusedIPv4Locked() netip.Addr {
-	// TODO: skip ranges that have been exhausted
-	for _, r := range ps.c.v4Ranges {
-		ip := randV4(r)
-		for r.Contains(ip) {
-			if !ps.isIPUsedLocked(ip) && ip != ps.c.dnsAddr {
-				return ip
-			}
-			ip = ip.Next()
-		}
-	}
-	return netip.Addr{}
-}
-
-// randV4 returns a random IPv4 address within the given prefix.
-func randV4(maskedPfx netip.Prefix) netip.Addr {
-	bits := 32 - maskedPfx.Bits()
-	randBits := rand.Uint32N(1 << uint(bits))
-
-	ip4 := maskedPfx.Addr().As4()
-	pn := binary.BigEndian.Uint32(ip4[:])
-	binary.BigEndian.PutUint32(ip4[:], randBits|pn)
-	return netip.AddrFrom4(ip4)
-}
-
-// assignAddrsLocked assigns a pair of unique IP addresses for the given domain
-// and returns them. The first address is an IPv4 address and the second is an
-// IPv6 address. It does not check if the domain already has assigned addresses.
-// ps.mu must be held.
-func (ps *perPeerState) assignAddrsLocked(domain string) []netip.Addr {
-	if ps.addrToDomain == nil {
-		ps.addrToDomain = &bart.Table[string]{}
-	}
-	v4 := ps.unusedIPv4Locked()
-	as16 := ps.c.v6ULA.Addr().As16()
-	as4 := v4.As4()
-	copy(as16[12:], as4[:])
-	v6 := netip.AddrFrom16(as16)
-	addrs := []netip.Addr{v4, v6}
-	mak.Set(&ps.domainToAddr, domain, addrs)
-	for _, a := range addrs {
-		ps.addrToDomain.Insert(netip.PrefixFrom(a, a.BitLen()), domain)
-	}
-	return addrs
-}

cmd/netlogfmt/main.go

@@ -314,7 +314,7 @@ func mustMakeNamesByAddr() map[netip.Addr]string {
 	seen := make(map[string]bool)
 	namesByAddr := make(map[netip.Addr]string)
 retry:
-	for i := range 10 {
+	for i := 0; i < 10; i++ {
 		clear(seen)
 		clear(namesByAddr)
 		for _, d := range m.Devices {
@@ -354,7 +354,7 @@ func fieldPrefix(s string, n int) string {
 }
 
 func appendRepeatByte(b []byte, c byte, n int) []byte {
-	for range n {
+	for i := 0; i < n; i++ {
 		b = append(b, c)
 	}
 	return b

cmd/pgproxy/pgproxy.go

@@ -28,6 +28,7 @@ import (
 	"tailscale.com/metrics"
 	"tailscale.com/tsnet"
 	"tailscale.com/tsweb"
+	"tailscale.com/types/logger"
 )
 
 var (
@@ -57,6 +58,8 @@ func main() {
 	ts := &tsnet.Server{
 		Dir:      *tailscaleDir,
 		Hostname: *hostname,
+		// Make the stdout logs a clean audit log of connections.
+		Logf: logger.Discard,
 	}
 
 	if os.Getenv("TS_AUTHKEY") == "" {

cmd/proxy-to-grafana/proxy-to-grafana.go

@@ -46,7 +46,6 @@ var (
 	backendAddr  = flag.String("backend-addr", "", "Address of the Grafana server served over HTTP, in host:port format. Typically localhost:nnnn.")
 	tailscaleDir = flag.String("state-dir", "./", "Alternate directory to use for Tailscale state storage. If empty, a default is used.")
 	useHTTPS     = flag.Bool("use-https", false, "Serve over HTTPS via your *.ts.net subdomain if enabled in Tailscale admin.")
-	loginServer  = flag.String("login-server", "", "URL to alternative control server. If empty, the default Tailscale control is used.")
 )
 
 func main() {
@@ -58,9 +57,8 @@ func main() {
 		log.Fatal("missing --backend-addr")
 	}
 	ts := &tsnet.Server{
-		Dir:        *tailscaleDir,
-		Hostname:   *hostname,
-		ControlURL: *loginServer,
+		Dir:      *tailscaleDir,
+		Hostname: *hostname,
 	}
 
 	// TODO(bradfitz,maisem): move this to a method on tsnet.Server probably.
@@ -90,7 +88,7 @@ func main() {
 
 		go func() {
 			// wait for tailscale to start before trying to fetch cert names
-			for range 60 {
+			for i := 0; i < 60; i++ {
 				st, err := localClient.Status(context.Background())
 				if err != nil {
 					log.Printf("error retrieving tailscale status; retrying: %v", err)

cmd/sniproxy/handlers.go

@@ -7,7 +7,7 @@ import (
 	"context"
 	"fmt"
 	"log"
-	"math/rand/v2"
+	"math/rand"
 	"net"
 	"net/netip"
 	"slices"
@@ -47,7 +47,7 @@ func (h *tcpRoundRobinHandler) Handle(c net.Conn) {
 		return netutil.NewOneConnListener(c, nil), nil
 	}
 
-	dest := h.To[rand.IntN(len(h.To))]
+	dest := h.To[rand.Intn(len(h.To))]
 	dial := &tcpproxy.DialProxy{
 		Addr:        fmt.Sprintf("%s:%s", dest, port),
 		DialContext: h.DialContext,

cmd/sniproxy/sniproxy_test.go

@@ -8,7 +8,6 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"log"
 	"net"
 	"net/http/httptest"
 	"net/netip"
@@ -25,7 +24,6 @@ import (
 	"tailscale.com/tsnet"
 	"tailscale.com/tstest/integration"
 	"tailscale.com/tstest/integration/testcontrol"
-	"tailscale.com/tstest/nettest"
 	"tailscale.com/types/appctype"
 	"tailscale.com/types/ipproto"
 	"tailscale.com/types/key"
@@ -100,8 +98,8 @@ func startNode(t *testing.T, ctx context.Context, controlURL, hostname string) (
 		Store:      new(mem.Store),
 		Ephemeral:  true,
 	}
-	if *verboseNodes {
-		s.Logf = log.Printf
+	if !*verboseNodes {
+		s.Logf = logger.Discard
 	}
 	t.Cleanup(func() { s.Close() })
 
@@ -113,7 +111,6 @@ func startNode(t *testing.T, ctx context.Context, controlURL, hostname string) (
 }
 
 func TestSNIProxyWithNetmapConfig(t *testing.T) {
-	nettest.SkipIfNoNetwork(t)
 	c, controlURL := startControl(t)
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
@@ -161,7 +158,7 @@ func TestSNIProxyWithNetmapConfig(t *testing.T) {
 		t.Fatal(err)
 	}
 	gotConfigured := false
-	for range 100 {
+	for i := 0; i < 100; i++ {
 		s, err := l.StatusWithoutPeers(ctx)
 		if err != nil {
 			t.Fatal(err)
@@ -192,7 +189,6 @@ func TestSNIProxyWithNetmapConfig(t *testing.T) {
 }
 
 func TestSNIProxyWithFlagConfig(t *testing.T) {
-	nettest.SkipIfNoNetwork(t)
 	_, controlURL := startControl(t)
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()

cmd/stunc/stunc.go

@@ -8,7 +8,6 @@ import (
 	"log"
 	"net"
 	"os"
-	"strconv"
 
 	"tailscale.com/net/stun"
 )
@@ -16,20 +15,12 @@ import (
 func main() {
 	log.SetFlags(0)
 
-	if len(os.Args) < 2 || len(os.Args) > 3 {
-		log.Fatalf("usage: %s <hostname> [port]", os.Args[0])
+	if len(os.Args) != 2 {
+		log.Fatalf("usage: %s <hostname>", os.Args[0])
 	}
 	host := os.Args[1]
-	port := "3478"
-	if len(os.Args) == 3 {
-		port = os.Args[2]
-	}
-	_, err := strconv.ParseUint(port, 10, 16)
-	if err != nil {
-		log.Fatalf("invalid port: %v", err)
-	}
 
-	uaddr, err := net.ResolveUDPAddr("udp", net.JoinHostPort(host, port))
+	uaddr, err := net.ResolveUDPAddr("udp", host+":3478")
 	if err != nil {
 		log.Fatal(err)
 	}

cmd/stund/depaware.txt

@@ -2,13 +2,7 @@ tailscale.com/cmd/stund dependencies: (generated by github.com/tailscale/depawar
 
         github.com/beorn7/perks/quantile                             from github.com/prometheus/client_golang/prometheus
      💣 github.com/cespare/xxhash/v2                                 from github.com/prometheus/client_golang/prometheus
-        github.com/go-json-experiment/json                           from tailscale.com/types/views
-        github.com/go-json-experiment/json/internal                  from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/internal/jsonflags        from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/internal/jsonopts         from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/internal/jsonwire         from github.com/go-json-experiment/json+
-        github.com/go-json-experiment/json/jsontext                  from github.com/go-json-experiment/json+
-        github.com/google/uuid                                       from tailscale.com/util/fastuuid
+        github.com/google/uuid                                       from tailscale.com/tsweb
      💣 github.com/prometheus/client_golang/prometheus               from tailscale.com/tsweb/promvarz
         github.com/prometheus/client_golang/prometheus/internal      from github.com/prometheus/client_golang/prometheus
         github.com/prometheus/client_model/go                        from github.com/prometheus/client_golang/prometheus+
@@ -26,7 +20,6 @@ tailscale.com/cmd/stund dependencies: (generated by github.com/tailscale/depawar
         google.golang.org/protobuf/internal/descfmt                  from google.golang.org/protobuf/internal/filedesc
         google.golang.org/protobuf/internal/descopts                 from google.golang.org/protobuf/internal/filedesc+
         google.golang.org/protobuf/internal/detrand                  from google.golang.org/protobuf/internal/descfmt+
-        google.golang.org/protobuf/internal/editiondefaults          from google.golang.org/protobuf/internal/filedesc
         google.golang.org/protobuf/internal/encoding/defval          from google.golang.org/protobuf/internal/encoding/tag+
         google.golang.org/protobuf/internal/encoding/messageset      from google.golang.org/protobuf/encoding/prototext+
         google.golang.org/protobuf/internal/encoding/tag             from google.golang.org/protobuf/internal/impl
@@ -65,14 +58,13 @@ tailscale.com/cmd/stund dependencies: (generated by github.com/tailscale/depawar
         tailscale.com/types/lazy                                     from tailscale.com/version+
         tailscale.com/types/logger                                   from tailscale.com/tsweb
         tailscale.com/types/opt                                      from tailscale.com/envknob+
-        tailscale.com/types/ptr                                      from tailscale.com/tailcfg+
+        tailscale.com/types/ptr                                      from tailscale.com/tailcfg
         tailscale.com/types/structs                                  from tailscale.com/tailcfg+
         tailscale.com/types/tkatype                                  from tailscale.com/tailcfg+
         tailscale.com/types/views                                    from tailscale.com/net/tsaddr+
         tailscale.com/util/ctxkey                                    from tailscale.com/tsweb+
    L 💣 tailscale.com/util/dirwalk                                   from tailscale.com/metrics
         tailscale.com/util/dnsname                                   from tailscale.com/tailcfg
-        tailscale.com/util/fastuuid                                  from tailscale.com/tsweb
         tailscale.com/util/lineread                                  from tailscale.com/version/distro
         tailscale.com/util/nocasemaps                                from tailscale.com/types/ipproto
         tailscale.com/util/slicesx                                   from tailscale.com/tailcfg
@@ -134,7 +126,6 @@ tailscale.com/cmd/stund dependencies: (generated by github.com/tailscale/depawar
         embed                                                        from crypto/internal/nistec+
         encoding                                                     from encoding/json+
         encoding/asn1                                                from crypto/x509+
-        encoding/base32                                              from github.com/go-json-experiment/json
         encoding/base64                                              from encoding/json+
         encoding/binary                                              from compress/gzip+
         encoding/hex                                                 from crypto/x509+
@@ -160,7 +151,6 @@ tailscale.com/cmd/stund dependencies: (generated by github.com/tailscale/depawar
         math/big                                                     from crypto/dsa+
         math/bits                                                    from compress/flate+
         math/rand                                                    from math/big+
-        math/rand/v2                                                 from tailscale.com/util/fastuuid+
         mime                                                         from github.com/prometheus/common/expfmt+
         mime/multipart                                               from net/http
         mime/quotedprintable                                         from mime/multipart

cmd/stunstamp/stunstamp.go

@@ -1,792 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-// The stunstamp binary measures STUN round-trip latency with DERPs.
-package main
-
-import (
-	"bytes"
-	"cmp"
-	"context"
-	"encoding/json"
-	"errors"
-	"flag"
-	"fmt"
-	"io"
-	"log"
-	"math"
-	"math/rand/v2"
-	"net"
-	"net/http"
-	"net/netip"
-	"net/url"
-	"os"
-	"os/signal"
-	"slices"
-	"strconv"
-	"strings"
-	"sync"
-	"syscall"
-	"time"
-
-	"github.com/golang/snappy"
-	"github.com/prometheus/prometheus/prompb"
-	"tailscale.com/logtail/backoff"
-	"tailscale.com/net/stun"
-	"tailscale.com/tailcfg"
-)
-
-var (
-	flagDERPMap        = flag.String("derp-map", "https://login.tailscale.com/derpmap/default", "URL to DERP map")
-	flagInterval       = flag.Duration("interval", time.Minute, "interval to probe at in time.ParseDuration() format")
-	flagIPv6           = flag.Bool("ipv6", false, "probe IPv6 addresses")
-	flagRemoteWriteURL = flag.String("rw-url", "", "prometheus remote write URL")
-	flagInstance       = flag.String("instance", "", "instance label value; defaults to hostname if unspecified")
-	flagDstPorts       = flag.String("dst-ports", "", "comma-separated list of destination ports to monitor")
-)
-
-const (
-	minInterval       = time.Second
-	maxBufferDuration = time.Hour
-)
-
-func getDERPMap(ctx context.Context, url string) (*tailcfg.DERPMap, error) {
-	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
-	if err != nil {
-		return nil, err
-	}
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		return nil, fmt.Errorf("non-200 derp map resp: %d", resp.StatusCode)
-	}
-	dm := tailcfg.DERPMap{}
-	err = json.NewDecoder(resp.Body).Decode(&dm)
-	if err != nil {
-		return nil, fmt.Errorf("failed to decode derp map resp: %v", err)
-	}
-	return &dm, nil
-}
-
-type timestampSource int
-
-const (
-	timestampSourceUserspace timestampSource = iota
-	timestampSourceKernel
-)
-
-func (t timestampSource) String() string {
-	switch t {
-	case timestampSourceUserspace:
-		return "userspace"
-	case timestampSourceKernel:
-		return "kernel"
-	default:
-		return "unknown"
-	}
-}
-
-// resultKey contains the stable dimensions and their values for a given
-// timeseries, i.e. not time and not rtt/timeout.
-type resultKey struct {
-	meta            nodeMeta
-	timestampSource timestampSource
-	connStability   connStability
-	dstPort         int
-}
-
-type result struct {
-	key resultKey
-	at  time.Time
-	rtt *time.Duration // nil signifies failure, e.g. timeout
-}
-
-func measureRTT(conn io.ReadWriteCloser, dst *net.UDPAddr) (rtt time.Duration, err error) {
-	uconn, ok := conn.(*net.UDPConn)
-	if !ok {
-		return 0, fmt.Errorf("unexpected conn type: %T", conn)
-	}
-	err = uconn.SetReadDeadline(time.Now().Add(time.Second * 2))
-	if err != nil {
-		return 0, fmt.Errorf("error setting read deadline: %w", err)
-	}
-	txID := stun.NewTxID()
-	req := stun.Request(txID)
-	txAt := time.Now()
-	_, err = uconn.WriteToUDP(req, dst)
-	if err != nil {
-		return 0, fmt.Errorf("error writing to udp socket: %w", err)
-	}
-	b := make([]byte, 1460)
-	for {
-		n, err := uconn.Read(b)
-		rxAt := time.Now()
-		if err != nil {
-			return 0, fmt.Errorf("error reading from udp socket: %w", err)
-		}
-		gotTxID, _, err := stun.ParseResponse(b[:n])
-		if err != nil || gotTxID != txID {
-			continue
-		}
-		return rxAt.Sub(txAt), nil
-	}
-
-}
-
-func isTemporaryOrTimeoutErr(err error) bool {
-	if errors.Is(err, os.ErrDeadlineExceeded) || errors.Is(err, context.DeadlineExceeded) {
-		return true
-	}
-	if err, ok := err.(interface{ Temporary() bool }); ok {
-		return err.Temporary()
-	}
-	return false
-}
-
-type nodeMeta struct {
-	regionID   int
-	regionCode string
-	hostname   string
-	addr       netip.Addr
-}
-
-type measureFn func(conn io.ReadWriteCloser, dst *net.UDPAddr) (rtt time.Duration, err error)
-
-// probe measures STUN round trip time for the node described by meta over
-// conn against dstPort. It may return a nil duration and nil error if the
-// STUN request timed out. A non-nil error indicates an unrecoverable or
-// non-temporary error.
-func probe(meta nodeMeta, conn io.ReadWriteCloser, fn measureFn, dstPort int) (*time.Duration, error) {
-	ua := &net.UDPAddr{
-		IP:   net.IP(meta.addr.AsSlice()),
-		Port: dstPort,
-	}
-
-	time.Sleep(rand.N(200 * time.Millisecond)) // jitter across tx
-	rtt, err := fn(conn, ua)
-	if err != nil {
-		if isTemporaryOrTimeoutErr(err) {
-			log.Printf("temp error measuring RTT to %s(%s): %v", meta.hostname, ua.String(), err)
-			return nil, nil
-		}
-		return nil, err
-	}
-	return &rtt, nil
-}
-
-// nodeMetaFromDERPMap parses the provided DERP map in order to update nodeMeta
-// in the provided nodeMetaByAddr. It returns a slice of nodeMeta containing
-// the nodes that are no longer seen in the DERP map, but were previously held
-// in nodeMetaByAddr.
-func nodeMetaFromDERPMap(dm *tailcfg.DERPMap, nodeMetaByAddr map[netip.Addr]nodeMeta, ipv6 bool) (stale []nodeMeta, err error) {
-	// Parse the new derp map before making any state changes in nodeMetaByAddr.
-	// If parse fails we just stick with the old state.
-	updated := make(map[netip.Addr]nodeMeta)
-	for regionID, region := range dm.Regions {
-		for _, node := range region.Nodes {
-			v4, err := netip.ParseAddr(node.IPv4)
-			if err != nil || !v4.Is4() {
-				return nil, fmt.Errorf("invalid ipv4 addr for node in derp map: %v", node.Name)
-			}
-			metas := make([]nodeMeta, 0, 2)
-			metas = append(metas, nodeMeta{
-				regionID:   regionID,
-				regionCode: region.RegionCode,
-				hostname:   node.HostName,
-				addr:       v4,
-			})
-			if ipv6 {
-				v6, err := netip.ParseAddr(node.IPv6)
-				if err != nil || !v6.Is6() {
-					return nil, fmt.Errorf("invalid ipv6 addr for node in derp map: %v", node.Name)
-				}
-				metas = append(metas, metas[0])
-				metas[1].addr = v6
-			}
-			for _, meta := range metas {
-				updated[meta.addr] = meta
-			}
-		}
-	}
-
-	// Find nodeMeta that have changed
-	for addr, updatedMeta := range updated {
-		previousMeta, ok := nodeMetaByAddr[addr]
-		if ok {
-			if previousMeta == updatedMeta {
-				continue
-			}
-			stale = append(stale, previousMeta)
-			nodeMetaByAddr[addr] = updatedMeta
-		} else {
-			nodeMetaByAddr[addr] = updatedMeta
-		}
-	}
-
-	// Find nodeMeta that no longer exist
-	for addr, potentialStale := range nodeMetaByAddr {
-		_, ok := updated[addr]
-		if !ok {
-			stale = append(stale, potentialStale)
-		}
-	}
-
-	return stale, nil
-}
-
-func getStableConns(stableConns map[netip.Addr]map[int][2]io.ReadWriteCloser, addr netip.Addr, dstPort int) ([2]io.ReadWriteCloser, error) {
-	conns := [2]io.ReadWriteCloser{}
-	byDstPort, ok := stableConns[addr]
-	if ok {
-		conns, ok = byDstPort[dstPort]
-		if ok {
-			return conns, nil
-		}
-	}
-	if supportsKernelTS() {
-		kconn, err := getConnKernelTimestamp()
-		if err != nil {
-			return conns, err
-		}
-		conns[timestampSourceKernel] = kconn
-	}
-	uconn, err := net.ListenUDP("udp", &net.UDPAddr{})
-	if err != nil {
-		if supportsKernelTS() {
-			conns[timestampSourceKernel].Close()
-		}
-		return conns, err
-	}
-	conns[timestampSourceUserspace] = uconn
-	if byDstPort == nil {
-		byDstPort = make(map[int][2]io.ReadWriteCloser)
-	}
-	byDstPort[dstPort] = conns
-	stableConns[addr] = byDstPort
-	return conns, nil
-}
-
-// probeNodes measures the round-trip time for STUN binding requests against the
-// DERP nodes described by nodeMetaByAddr while using/updating stableConns for
-// UDP sockets that should be recycled across runs. It returns the results or
-// an error if one occurs.
-func probeNodes(nodeMetaByAddr map[netip.Addr]nodeMeta, stableConns map[netip.Addr]map[int][2]io.ReadWriteCloser, dstPorts []int) ([]result, error) {
-	wg := sync.WaitGroup{}
-	results := make([]result, 0)
-	resultsCh := make(chan result)
-	errCh := make(chan error)
-	doneCh := make(chan struct{})
-	numProbes := 0
-	at := time.Now()
-	addrsToProbe := make(map[netip.Addr]bool)
-
-	doProbe := func(conn io.ReadWriteCloser, meta nodeMeta, source timestampSource, dstPort int) {
-		defer wg.Done()
-		r := result{
-			key: resultKey{
-				meta:            meta,
-				timestampSource: source,
-				dstPort:         dstPort,
-			},
-			at: at,
-		}
-		if conn == nil {
-			var err error
-			if source == timestampSourceKernel {
-				conn, err = getConnKernelTimestamp()
-			} else {
-				conn, err = net.ListenUDP("udp", &net.UDPAddr{})
-			}
-			if err != nil {
-				select {
-				case <-doneCh:
-					return
-				case errCh <- err:
-					return
-				}
-			}
-			defer conn.Close()
-		} else {
-			r.key.connStability = stableConn
-		}
-		fn := measureRTT
-		if source == timestampSourceKernel {
-			fn = measureRTTKernel
-		}
-		rtt, err := probe(meta, conn, fn, dstPort)
-		if err != nil {
-			select {
-			case <-doneCh:
-				return
-			case errCh <- err:
-				return
-			}
-		}
-		r.rtt = rtt
-		select {
-		case <-doneCh:
-		case resultsCh <- r:
-		}
-	}
-
-	for _, meta := range nodeMetaByAddr {
-		addrsToProbe[meta.addr] = true
-		for _, port := range dstPorts {
-			stable, err := getStableConns(stableConns, meta.addr, port)
-			if err != nil {
-				close(doneCh)
-				wg.Wait()
-				return nil, err
-			}
-
-			wg.Add(2)
-			numProbes += 2
-			go doProbe(stable[timestampSourceUserspace], meta, timestampSourceUserspace, port)
-			go doProbe(nil, meta, timestampSourceUserspace, port)
-			if supportsKernelTS() {
-				wg.Add(2)
-				numProbes += 2
-				go doProbe(stable[timestampSourceKernel], meta, timestampSourceKernel, port)
-				go doProbe(nil, meta, timestampSourceKernel, port)
-			}
-		}
-	}
-
-	// cleanup conns we no longer need
-	for k, byDstPort := range stableConns {
-		if !addrsToProbe[k] {
-			for _, conns := range byDstPort {
-				if conns[timestampSourceKernel] != nil {
-					conns[timestampSourceKernel].Close()
-				}
-				conns[timestampSourceUserspace].Close()
-				delete(stableConns, k)
-			}
-		}
-	}
-
-	for {
-		select {
-		case err := <-errCh:
-			close(doneCh)
-			wg.Wait()
-			return nil, err
-		case result := <-resultsCh:
-			results = append(results, result)
-			if len(results) == numProbes {
-				return results, nil
-			}
-		}
-	}
-}
-
-type connStability bool
-
-const (
-	unstableConn connStability = false
-	stableConn   connStability = true
-)
-
-const (
-	rttMetricName      = "stunstamp_derp_stun_rtt_ns"
-	timeoutsMetricName = "stunstamp_derp_stun_timeouts_total"
-)
-
-func timeSeriesLabels(metricName string, meta nodeMeta, instance string, source timestampSource, stability connStability, dstPort int) []prompb.Label {
-	addressFamily := "ipv4"
-	if meta.addr.Is6() {
-		addressFamily = "ipv6"
-	}
-	labels := make([]prompb.Label, 0)
-	labels = append(labels, prompb.Label{
-		Name:  "job",
-		Value: "stunstamp-rw",
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "instance",
-		Value: instance,
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "region_id",
-		Value: fmt.Sprintf("%d", meta.regionID),
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "region_code",
-		Value: meta.regionCode,
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "address_family",
-		Value: addressFamily,
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "hostname",
-		Value: meta.hostname,
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "dst_port",
-		Value: strconv.Itoa(dstPort),
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "__name__",
-		Value: metricName,
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "timestamp_source",
-		Value: source.String(),
-	})
-	labels = append(labels, prompb.Label{
-		Name:  "stable_conn",
-		Value: fmt.Sprintf("%v", stability),
-	})
-	slices.SortFunc(labels, func(a, b prompb.Label) int {
-		// prometheus remote-write spec requires lexicographically sorted label names
-		return cmp.Compare(a.Name, b.Name)
-	})
-	return labels
-}
-
-const (
-	// https://prometheus.io/docs/concepts/remote_write_spec/#stale-markers
-	staleNaN uint64 = 0x7ff0000000000002
-)
-
-func staleMarkersFromNodeMeta(stale []nodeMeta, instance string, dstPorts []int) []prompb.TimeSeries {
-	staleMarkers := make([]prompb.TimeSeries, 0)
-	now := time.Now()
-	for _, s := range stale {
-		for _, dstPort := range dstPorts {
-			samples := []prompb.Sample{
-				{
-					Timestamp: now.UnixMilli(),
-					Value:     math.Float64frombits(staleNaN),
-				},
-			}
-			staleMarkers = append(staleMarkers, prompb.TimeSeries{
-				Labels:  timeSeriesLabels(rttMetricName, s, instance, timestampSourceUserspace, unstableConn, dstPort),
-				Samples: samples,
-			})
-			staleMarkers = append(staleMarkers, prompb.TimeSeries{
-				Labels:  timeSeriesLabels(rttMetricName, s, instance, timestampSourceUserspace, stableConn, dstPort),
-				Samples: samples,
-			})
-			staleMarkers = append(staleMarkers, prompb.TimeSeries{
-				Labels:  timeSeriesLabels(timeoutsMetricName, s, instance, timestampSourceUserspace, unstableConn, dstPort),
-				Samples: samples,
-			})
-			staleMarkers = append(staleMarkers, prompb.TimeSeries{
-				Labels:  timeSeriesLabels(timeoutsMetricName, s, instance, timestampSourceUserspace, stableConn, dstPort),
-				Samples: samples,
-			})
-			if supportsKernelTS() {
-				staleMarkers = append(staleMarkers, prompb.TimeSeries{
-					Labels:  timeSeriesLabels(rttMetricName, s, instance, timestampSourceKernel, unstableConn, dstPort),
-					Samples: samples,
-				})
-				staleMarkers = append(staleMarkers, prompb.TimeSeries{
-					Labels:  timeSeriesLabels(rttMetricName, s, instance, timestampSourceKernel, stableConn, dstPort),
-					Samples: samples,
-				})
-				staleMarkers = append(staleMarkers, prompb.TimeSeries{
-					Labels:  timeSeriesLabels(timeoutsMetricName, s, instance, timestampSourceKernel, unstableConn, dstPort),
-					Samples: samples,
-				})
-				staleMarkers = append(staleMarkers, prompb.TimeSeries{
-					Labels:  timeSeriesLabels(timeoutsMetricName, s, instance, timestampSourceKernel, stableConn, dstPort),
-					Samples: samples,
-				})
-			}
-		}
-	}
-	return staleMarkers
-}
-
-// resultsToPromTimeSeries returns a slice of prometheus TimeSeries for the
-// provided results and instance. timeouts is updated based on results, i.e.
-// all result.key's are added to timeouts if they do not exist, and removed
-// from timeouts if they are not present in results.
-func resultsToPromTimeSeries(results []result, instance string, timeouts map[resultKey]uint64) []prompb.TimeSeries {
-	all := make([]prompb.TimeSeries, 0, len(results)*2)
-	seenKeys := make(map[resultKey]bool)
-	for _, r := range results {
-		timeoutsCount := timeouts[r.key] // a non-existent key will return a zero val
-		seenKeys[r.key] = true
-		rttLabels := timeSeriesLabels(rttMetricName, r.key.meta, instance, r.key.timestampSource, r.key.connStability, r.key.dstPort)
-		rttSamples := make([]prompb.Sample, 1)
-		rttSamples[0].Timestamp = r.at.UnixMilli()
-		if r.rtt != nil {
-			rttSamples[0].Value = float64(*r.rtt)
-		} else {
-			rttSamples[0].Value = math.NaN()
-			timeoutsCount++
-		}
-		rttTS := prompb.TimeSeries{
-			Labels:  rttLabels,
-			Samples: rttSamples,
-		}
-		all = append(all, rttTS)
-		timeouts[r.key] = timeoutsCount
-		timeoutsLabels := timeSeriesLabels(timeoutsMetricName, r.key.meta, instance, r.key.timestampSource, r.key.connStability, r.key.dstPort)
-		timeoutsSamples := make([]prompb.Sample, 1)
-		timeoutsSamples[0].Timestamp = r.at.UnixMilli()
-		timeoutsSamples[0].Value = float64(timeoutsCount)
-		timeoutsTS := prompb.TimeSeries{
-			Labels:  timeoutsLabels,
-			Samples: timeoutsSamples,
-		}
-		all = append(all, timeoutsTS)
-	}
-	for k := range timeouts {
-		if !seenKeys[k] {
-			delete(timeouts, k)
-		}
-	}
-	return all
-}
-
-type remoteWriteClient struct {
-	c   *http.Client
-	url string
-}
-
-type recoverableErr struct {
-	error
-}
-
-func newRemoteWriteClient(url string) *remoteWriteClient {
-	return &remoteWriteClient{
-		c: &http.Client{
-			Timeout: time.Second * 30,
-		},
-		url: url,
-	}
-}
-
-func (r *remoteWriteClient) write(ctx context.Context, ts []prompb.TimeSeries) error {
-	wr := &prompb.WriteRequest{
-		Timeseries: ts,
-	}
-	b, err := wr.Marshal()
-	if err != nil {
-		return fmt.Errorf("unable to marshal write request: %w", err)
-	}
-	compressed := snappy.Encode(nil, b)
-	req, err := http.NewRequestWithContext(ctx, "POST", r.url, bytes.NewReader(compressed))
-	if err != nil {
-		return fmt.Errorf("unable to create write request: %w", err)
-	}
-	req.Header.Add("Content-Encoding", "snappy")
-	req.Header.Set("Content-Type", "application/x-protobuf")
-	req.Header.Set("User-Agent", "stunstamp")
-	req.Header.Set("X-Prometheus-Remote-Write-Version", "0.1.0")
-	resp, err := r.c.Do(req)
-	if err != nil {
-		return recoverableErr{fmt.Errorf("error performing write request: %w", err)}
-	}
-	if resp.StatusCode/100 != 2 {
-		err = fmt.Errorf("remote server %s returned HTTP status %d", r.url, resp.StatusCode)
-	}
-	if resp.StatusCode/100 == 5 || resp.StatusCode == http.StatusTooManyRequests {
-		return recoverableErr{err}
-	}
-	return err
-}
-
-func remoteWriteTimeSeries(client *remoteWriteClient, tsCh chan []prompb.TimeSeries) {
-	bo := backoff.NewBackoff("remote-write", log.Printf, time.Second*30)
-	// writeErr may contribute to bo's backoff schedule across tsCh read ops,
-	// i.e. if an unrecoverable error occurs for client.write(ctx, A), that
-	// should be accounted against bo prior to attempting to
-	// client.write(ctx, B).
-	var writeErr error
-	for ts := range tsCh {
-		for {
-			bo.BackOff(context.Background(), writeErr)
-			reqCtx, cancel := context.WithTimeout(context.Background(), time.Second*30)
-			writeErr = client.write(reqCtx, ts)
-			cancel()
-			var re recoverableErr
-			recoverable := errors.As(writeErr, &re)
-			if writeErr != nil {
-				log.Printf("remote write error(recoverable=%v): %v", recoverable, writeErr)
-			}
-			if !recoverable {
-				// a nil err is not recoverable
-				break
-			}
-		}
-	}
-}
-
-func main() {
-	flag.Parse()
-	if len(*flagDstPorts) == 0 {
-		log.Fatal("dst-ports flag is unset")
-	}
-	dstPortsSplit := strings.Split(*flagDstPorts, ",")
-	slices.Sort(dstPortsSplit)
-	dstPortsSplit = slices.Compact(dstPortsSplit)
-	dstPorts := make([]int, 0, len(dstPortsSplit))
-	for _, d := range dstPortsSplit {
-		i, err := strconv.ParseUint(d, 10, 16)
-		if err != nil {
-			log.Fatal("invalid dst-ports")
-		}
-		dstPorts = append(dstPorts, int(i))
-	}
-	if len(*flagDERPMap) < 1 {
-		log.Fatal("derp-map flag is unset")
-	}
-	if *flagInterval < minInterval || *flagInterval > maxBufferDuration {
-		log.Fatalf("interval must be >= %s and <= %s", minInterval, maxBufferDuration)
-	}
-	if len(*flagRemoteWriteURL) < 1 {
-		log.Fatal("rw-url flag is unset")
-	}
-	_, err := url.Parse(*flagRemoteWriteURL)
-	if err != nil {
-		log.Fatalf("invalid rw-url flag value: %v", err)
-	}
-	if len(*flagInstance) < 1 {
-		hostname, err := os.Hostname()
-		if err != nil {
-			log.Fatalf("failed to get hostname: %v", err)
-		}
-		*flagInstance = hostname
-	}
-
-	sigCh := make(chan os.Signal, 1)
-	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
-	dmCh := make(chan *tailcfg.DERPMap)
-
-	go func() {
-		bo := backoff.NewBackoff("derp-map", log.Printf, time.Second*30)
-		for {
-			ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
-			dm, err := getDERPMap(ctx, *flagDERPMap)
-			cancel()
-			bo.BackOff(context.Background(), err)
-			if err != nil {
-				continue
-			}
-			dmCh <- dm
-			return
-		}
-	}()
-
-	nodeMetaByAddr := make(map[netip.Addr]nodeMeta)
-	select {
-	case <-sigCh:
-		return
-	case dm := <-dmCh:
-		_, err := nodeMetaFromDERPMap(dm, nodeMetaByAddr, *flagIPv6)
-		if err != nil {
-			log.Fatalf("error parsing derp map on startup: %v", err)
-		}
-	}
-
-	tsCh := make(chan []prompb.TimeSeries, maxBufferDuration / *flagInterval)
-	remoteWriteDoneCh := make(chan struct{})
-	rwc := newRemoteWriteClient(*flagRemoteWriteURL)
-	go func() {
-		remoteWriteTimeSeries(rwc, tsCh)
-		close(remoteWriteDoneCh)
-	}()
-
-	shutdown := func() {
-		close(tsCh)
-		select {
-		case <-time.After(time.Second * 10): // give goroutine some time to flush
-		case <-remoteWriteDoneCh:
-		}
-
-		// send stale markers on shutdown
-		staleMeta := make([]nodeMeta, 0, len(nodeMetaByAddr))
-		for _, v := range nodeMetaByAddr {
-			staleMeta = append(staleMeta, v)
-		}
-		staleMarkers := staleMarkersFromNodeMeta(staleMeta, *flagInstance, dstPorts)
-		if len(staleMarkers) > 0 {
-			ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-			rwc.write(ctx, staleMarkers)
-			cancel()
-		}
-
-		return
-	}
-
-	log.Println("stunstamp started")
-
-	// Re-using sockets means we get the same 5-tuple across runs. This results
-	// in a higher probability of the packets traversing the same underlay path.
-	// Comparison of stable and unstable 5-tuple results can shed light on
-	// differences between paths where hashing (multipathing/load balancing)
-	// comes into play.
-	stableConns := make(map[netip.Addr]map[int][2]io.ReadWriteCloser)
-
-	// timeouts holds counts of timeout events. Values are persisted for the
-	// lifetime of the related node in the DERP map.
-	timeouts := make(map[resultKey]uint64)
-
-	derpMapTicker := time.NewTicker(time.Minute * 5)
-	defer derpMapTicker.Stop()
-	probeTicker := time.NewTicker(*flagInterval)
-	defer probeTicker.Stop()
-
-	for {
-		select {
-		case <-probeTicker.C:
-			results, err := probeNodes(nodeMetaByAddr, stableConns, dstPorts)
-			if err != nil {
-				log.Printf("unrecoverable error while probing: %v", err)
-				shutdown()
-				return
-			}
-			ts := resultsToPromTimeSeries(results, *flagInstance, timeouts)
-			select {
-			case tsCh <- ts:
-			default:
-				select {
-				case <-tsCh:
-					log.Println("prometheus remote-write buffer full, dropped measurements")
-				default:
-					tsCh <- ts
-				}
-			}
-		case dm := <-dmCh:
-			staleMeta, err := nodeMetaFromDERPMap(dm, nodeMetaByAddr, *flagIPv6)
-			if err != nil {
-				log.Printf("error parsing DERP map, continuing with stale map: %v", err)
-				continue
-			}
-			staleMarkers := staleMarkersFromNodeMeta(staleMeta, *flagInstance, dstPorts)
-			if len(staleMarkers) < 1 {
-				continue
-			}
-			select {
-			case tsCh <- staleMarkers:
-			default:
-				select {
-				case <-tsCh:
-					log.Println("prometheus remote-write buffer full, dropped measurements")
-				default:
-					tsCh <- staleMarkers
-				}
-			}
-		case <-derpMapTicker.C:
-			go func() {
-				ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
-				defer cancel()
-				updatedDM, err := getDERPMap(ctx, *flagDERPMap)
-				if err != nil {
-					dmCh <- updatedDM
-				}
-			}()
-		case <-sigCh:
-			shutdown()
-			return
-		}
-	}
-}

cmd/stunstamp/stunstamp_default.go

@@ -1,25 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-//go:build !linux
-
-package main
-
-import (
-	"errors"
-	"io"
-	"net"
-	"time"
-)
-
-func getConnKernelTimestamp() (io.ReadWriteCloser, error) {
-	return nil, errors.New("unimplemented")
-}
-
-func measureRTTKernel(conn io.ReadWriteCloser, dst *net.UDPAddr) (rtt time.Duration, err error) {
-	return 0, errors.New("unimplemented")
-}
-
-func supportsKernelTS() bool {
-	return false
-}

cmd/stunstamp/stunstamp_linux.go

@@ -1,143 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-package main
-
-import (
-	"bytes"
-	"context"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"time"
-
-	"github.com/mdlayher/socket"
-	"golang.org/x/sys/unix"
-	"tailscale.com/net/stun"
-)
-
-const (
-	flags = unix.SOF_TIMESTAMPING_TX_SOFTWARE | // tx timestamp generation in device driver
-		unix.SOF_TIMESTAMPING_RX_SOFTWARE | // rx timestamp generation in the kernel
-		unix.SOF_TIMESTAMPING_SOFTWARE // report software timestamps
-)
-
-func getConnKernelTimestamp() (io.ReadWriteCloser, error) {
-	sconn, err := socket.Socket(unix.AF_INET6, unix.SOCK_DGRAM, unix.IPPROTO_UDP, "udp", nil)
-	if err != nil {
-		return nil, err
-	}
-	sa := unix.SockaddrInet6{}
-	err = sconn.Bind(&sa)
-	if err != nil {
-		return nil, err
-	}
-	err = sconn.SetsockoptInt(unix.SOL_SOCKET, unix.SO_TIMESTAMPING_NEW, flags)
-	if err != nil {
-		return nil, err
-	}
-	return sconn, nil
-}
-
-func parseTimestampFromCmsgs(oob []byte) (time.Time, error) {
-	msgs, err := unix.ParseSocketControlMessage(oob)
-	if err != nil {
-		return time.Time{}, fmt.Errorf("error parsing oob as cmsgs: %w", err)
-	}
-	for _, msg := range msgs {
-		if msg.Header.Level == unix.SOL_SOCKET && msg.Header.Type == unix.SO_TIMESTAMPING_NEW && len(msg.Data) >= 16 {
-			sec := int64(binary.NativeEndian.Uint64(msg.Data[:8]))
-			ns := int64(binary.NativeEndian.Uint64(msg.Data[8:16]))
-			return time.Unix(sec, ns), nil
-		}
-	}
-	return time.Time{}, errors.New("failed to parse timestamp from cmsgs")
-}
-
-func measureRTTKernel(conn io.ReadWriteCloser, dst *net.UDPAddr) (rtt time.Duration, err error) {
-	sconn, ok := conn.(*socket.Conn)
-	if !ok {
-		return 0, fmt.Errorf("conn of unexpected type: %T", conn)
-	}
-
-	var to unix.Sockaddr
-	to4 := dst.IP.To4()
-	if to4 != nil {
-		to = &unix.SockaddrInet4{
-			Port: dst.Port,
-		}
-		copy(to.(*unix.SockaddrInet4).Addr[:], to4)
-	} else {
-		to = &unix.SockaddrInet6{
-			Port: dst.Port,
-		}
-		copy(to.(*unix.SockaddrInet6).Addr[:], dst.IP)
-	}
-
-	txID := stun.NewTxID()
-	req := stun.Request(txID)
-
-	err = sconn.Sendto(context.Background(), req, 0, to)
-	if err != nil {
-		return 0, fmt.Errorf("sendto error: %v", err) // don't wrap
-	}
-
-	txCtx, txCancel := context.WithTimeout(context.Background(), time.Second*2)
-	defer txCancel()
-
-	buf := make([]byte, 1024)
-	oob := make([]byte, 1024)
-	var txAt time.Time
-
-	for {
-		n, oobn, _, _, err := sconn.Recvmsg(txCtx, buf, oob, unix.MSG_ERRQUEUE)
-		if err != nil {
-			return 0, fmt.Errorf("recvmsg (MSG_ERRQUEUE) error: %v", err) // don't wrap
-		}
-
-		buf = buf[:n]
-		if n < len(req) || !bytes.Equal(req, buf[len(buf)-len(req):]) {
-			// Spin until we find the message we sent. We get the full packet
-			// looped including eth header so match against the tail.
-			continue
-		}
-		txAt, err = parseTimestampFromCmsgs(oob[:oobn])
-		if err != nil {
-			return 0, fmt.Errorf("failed to get tx timestamp: %v", err) // don't wrap
-		}
-		break
-	}
-
-	rxCtx, rxCancel := context.WithTimeout(context.Background(), time.Second*2)
-	defer rxCancel()
-
-	for {
-		n, oobn, _, _, err := sconn.Recvmsg(rxCtx, buf, oob, 0)
-		if err != nil {
-			return 0, fmt.Errorf("recvmsg error: %w", err) // wrap for timeout-related error unwrapping
-		}
-
-		gotTxID, _, err := stun.ParseResponse(buf[:n])
-		if err != nil || gotTxID != txID {
-			// Spin until we find the txID we sent. We may end up reading
-			// extremely late arriving responses from previous intervals. As
-			// such, we can't be certain if we're parsing the "current"
-			// response, so spin for parse errors too.
-			continue
-		}
-
-		rxAt, err := parseTimestampFromCmsgs(oob[:oobn])
-		if err != nil {
-			return 0, fmt.Errorf("failed to get rx timestamp: %v", err) // don't wrap
-		}
-
-		return rxAt.Sub(txAt), nil
-	}
-
-}
-
-func supportsKernelTS() bool {
-	return true
-}

cmd/tailscale/cli/bugreport.go

@@ -17,7 +17,7 @@ var bugReportCmd = &ffcli.Command{
 	Name:       "bugreport",
 	Exec:       runBugReport,
 	ShortHelp:  "Print a shareable identifier to help diagnose issues",
-	ShortUsage: "tailscale bugreport [note]",
+	ShortUsage: "bugreport [note]",
 	FlagSet: (func() *flag.FlagSet {
 		fs := newFlagSet("bugreport")
 		fs.BoolVar(&bugReportArgs.diagnose, "diagnose", false, "run additional in-depth checks")