chrome-service: in-cluster headed Chromium pool for f1-stream verifier
The f1-stream verifier's in-process headless Chromium kept tripping hmembeds' disable-devtool.js Performance detector (CDP latency on console.log vs console.table) and getting redirected to google.com. This adds a single-replica chrome-service stack running Playwright launch-server under Xvfb so callers can connect via WS+token to a shared headed browser. f1-stream's _ensure_browser now prefers chromium.connect(CHROME_WS_URL/CHROME_WS_TOKEN) and adds a vendored stealth init script (webdriver/plugins/languages/Permissions/WebGL spoofs + querySelector hijack to disarm disable-devtool-auto) on every new context. Falls back to in-process headless if the env vars aren't set. Encrypted PVC for profile + npm cache, NetworkPolicy to TCP/3000 gated by client-namespace label, 6h tar.gz backup CronJob to NFS, Authentik-gated nginx sidecar at chrome.viktorbarzin.me for human liveness checks. Image pinned to playwright:v1.48.0-noble in lockstep with the Python client's playwright==1.48.0. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Viktor Barzin
parent
ae70faf8be
commit
d77a02357c
9 changed files with 901 additions and 14 deletions
502
stacks/chrome-service/main.tf
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502
stacks/chrome-service/main.tf
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@ -0,0 +1,502 @@
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variable "tls_secret_name" {
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type = string
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sensitive = true
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}
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variable "nfs_server" { type = string }
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locals {
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namespace = "chrome-service"
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labels = {
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app = "chrome-service"
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}
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# Pin to the same Playwright minor that the Python client requires.
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# If you bump this image, also bump `playwright==X.Y.Z` in the client
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# (currently f1-stream) and re-run the connect smoke test.
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image = "mcr.microsoft.com/playwright:v1.48.0-noble"
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}
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# --- Namespace ---
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resource "kubernetes_namespace" "chrome_service" {
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metadata {
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name = local.namespace
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labels = {
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"istio-injection" = "disabled"
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tier = local.tiers.aux
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"chrome-service.viktorbarzin.me/server" = "true"
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}
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode ClusterPolicy stamps this label on every namespace
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ignore_changes = [metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"]]
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}
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}
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# --- Secrets (single-key extract: api_bearer_token) ---
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resource "kubernetes_manifest" "external_secret" {
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manifest = {
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apiVersion = "external-secrets.io/v1beta1"
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kind = "ExternalSecret"
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metadata = {
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name = "chrome-service-secrets"
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namespace = local.namespace
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}
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spec = {
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refreshInterval = "15m"
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secretStoreRef = {
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name = "vault-kv"
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kind = "ClusterSecretStore"
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}
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target = {
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name = "chrome-service-secrets"
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}
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dataFrom = [{
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extract = {
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key = "chrome-service"
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}
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}]
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}
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}
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depends_on = [kubernetes_namespace.chrome_service]
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}
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# tls-secret for the chrome.viktorbarzin.me ingress is auto-cloned into
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# every namespace by Kyverno's `sync-tls-secret` ClusterPolicy — no local
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# module call needed.
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# --- Encrypted profile PVC ---
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# Holds Chromium user data: cookies, localStorage, IndexedDB. Sites we
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# drive may set auth tokens or session cookies — encrypted is correct.
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resource "kubernetes_persistent_volume_claim" "profile_encrypted" {
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wait_until_bound = false
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metadata {
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name = "chrome-service-profile-encrypted"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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annotations = {
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"resize.topolvm.io/threshold" = "80%"
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"resize.topolvm.io/increase" = "100%"
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"resize.topolvm.io/storage_limit" = "10Gi"
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}
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}
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spec {
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access_modes = ["ReadWriteOnce"]
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storage_class_name = "proxmox-lvm-encrypted"
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resources {
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requests = {
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storage = "2Gi"
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}
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}
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}
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}
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# --- NFS backup target ---
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module "nfs_chrome_service_backup_host" {
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source = "../../modules/kubernetes/nfs_volume"
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name = "chrome-service-backup-host"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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nfs_server = "192.168.1.127"
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nfs_path = "/srv/nfs/chrome-service-backup"
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}
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# --- Deployment ---
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resource "kubernetes_deployment" "chrome_service" {
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metadata {
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name = "chrome-service"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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labels = merge(local.labels, {
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tier = local.tiers.aux
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})
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annotations = {
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"reloader.stakater.com/auto" = "true"
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}
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}
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spec {
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replicas = 1
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strategy {
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type = "Recreate"
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}
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selector {
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match_labels = local.labels
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}
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template {
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metadata {
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labels = local.labels
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}
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spec {
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security_context {
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run_as_user = 1000
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run_as_group = 1000
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fs_group = 1000
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seccomp_profile {
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type = "RuntimeDefault"
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}
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}
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# Fix profile dir ownership (PVC may have root-owned files from prior run).
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init_container {
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name = "fix-perms"
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image = "busybox:1.37"
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command = ["sh", "-c", "chown -R 1000:1000 /profile"]
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security_context {
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run_as_user = 0
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}
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volume_mount {
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name = "profile"
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mount_path = "/profile"
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}
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resources {
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requests = { memory = "32Mi" }
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limits = { memory = "64Mi" }
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}
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}
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container {
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name = "chrome-service"
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image = local.image
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image_pull_policy = "IfNotPresent"
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# `launch-server` (not `run-server`) lets us pin headed mode +
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# specific args. `run-server` defaults to headless, which the
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# disable-devtool.js Performance detector trips under Playwright
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# (CDP adds latency to console.log; lib detects + redirects).
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# The Microsoft image ships only the browsers, not the playwright
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# npm package itself — `npx -y playwright@<ver>` downloads it on
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# first start (cached under $HOME/.npm via the PVC) and pins to
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# the same minor as the Python client. Bump in lockstep.
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command = ["bash", "-c"]
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args = [
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<<-EOT
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set -e
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Xvfb :99 -screen 0 1280x720x24 &
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sleep 1
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cat > /tmp/launch.json <<JSON
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{
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"headless": false,
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"port": 3000,
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"host": "0.0.0.0",
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"wsPath": "/$${PW_TOKEN}",
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"args": [
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"--no-sandbox",
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"--disable-blink-features=AutomationControlled",
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"--disable-features=IsolateOrigins,site-per-process",
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"--autoplay-policy=no-user-gesture-required",
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"--disable-dev-shm-usage"
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]
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}
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JSON
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exec npx -y playwright@1.48.0 launch-server --browser chromium --config /tmp/launch.json
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EOT
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]
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env {
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name = "DISPLAY"
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value = ":99"
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}
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env {
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name = "HOME"
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value = "/profile"
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}
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env {
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name = "PW_TOKEN"
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value_from {
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secret_key_ref {
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name = "chrome-service-secrets"
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key = "api_bearer_token"
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}
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}
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}
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port {
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name = "ws"
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container_port = 3000
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protocol = "TCP"
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}
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# Playwright run-server exposes only the WS endpoint; no /health.
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liveness_probe {
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tcp_socket { port = 3000 }
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initial_delay_seconds = 30
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period_seconds = 30
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failure_threshold = 3
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}
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readiness_probe {
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tcp_socket { port = 3000 }
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initial_delay_seconds = 10
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period_seconds = 10
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}
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startup_probe {
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tcp_socket { port = 3000 }
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period_seconds = 5
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failure_threshold = 24 # up to 2 minutes
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}
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volume_mount {
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name = "profile"
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mount_path = "/profile"
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}
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volume_mount {
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name = "dshm"
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mount_path = "/dev/shm"
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}
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resources {
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requests = {
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cpu = "200m"
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memory = "1500Mi"
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}
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limits = {
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memory = "2Gi"
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}
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}
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}
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# Static health/admin page served behind Authentik. Lets a human
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# confirm the service is up via the browser; the WS endpoint stays
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# internal-only. nginx-unprivileged listens on 8080 as user 101 by
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# default — works under the pod's non-root securityContext.
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container {
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name = "health"
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image = "docker.io/nginxinc/nginx-unprivileged:alpine"
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image_pull_policy = "IfNotPresent"
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port {
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name = "http"
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container_port = 8080
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protocol = "TCP"
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}
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volume_mount {
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name = "health-html"
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mount_path = "/usr/share/nginx/html"
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read_only = true
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}
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# nginx-unprivileged ships with /tmp, /var/cache/nginx and pidfile
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# paths owned by UID 101, not 1000. Override the pod-level user.
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security_context {
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run_as_user = 101
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run_as_group = 101
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}
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resources {
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requests = { cpu = "10m", memory = "16Mi" }
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limits = { memory = "32Mi" }
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}
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}
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volume {
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name = "profile"
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persistent_volume_claim {
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claim_name = kubernetes_persistent_volume_claim.profile_encrypted.metadata[0].name
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}
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}
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volume {
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name = "dshm"
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empty_dir {
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medium = "Memory"
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size_limit = "256Mi"
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}
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}
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volume {
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name = "health-html"
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config_map {
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name = kubernetes_config_map.health_html.metadata[0].name
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}
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}
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}
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}
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1: Kyverno admission webhook mutates dns_config with ndots=2
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ignore_changes = [spec[0].template[0].spec[0].dns_config]
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}
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}
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# --- Static health page ConfigMaps (served by nginx sidecar) ---
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resource "kubernetes_config_map" "health_html" {
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metadata {
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name = "chrome-service-health-html"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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}
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data = {
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"index.html" = <<-EOT
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<!doctype html><meta charset="utf-8"><title>chrome-service</title>
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<h1>chrome-service</h1>
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<p>Headless-Chromium-as-a-service is running.</p>
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<p>Connect via Playwright: <code>chromium.connect("ws://chrome-service.chrome-service.svc.cluster.local:3000/<TOKEN>")</code></p>
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EOT
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}
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}
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# --- Services ---
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# WS endpoint (internal only, gated by NetworkPolicy + token).
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resource "kubernetes_service" "chrome_service" {
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metadata {
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name = "chrome-service"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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labels = local.labels
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}
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spec {
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selector = local.labels
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port {
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name = "ws"
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port = 3000
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target_port = 3000
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protocol = "TCP"
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}
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}
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}
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# Health page (Authentik-gated, exposed via ingress).
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resource "kubernetes_service" "chrome_health" {
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metadata {
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name = "chrome"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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labels = local.labels
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}
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spec {
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selector = local.labels
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port {
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name = "http"
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port = 80
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target_port = 8080
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protocol = "TCP"
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}
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}
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}
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module "ingress" {
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source = "../../modules/kubernetes/ingress_factory"
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dns_type = "proxied"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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name = "chrome"
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tls_secret_name = var.tls_secret_name
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protected = true
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extra_annotations = {
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"gethomepage.dev/enabled" = "true"
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"gethomepage.dev/name" = "Chrome Service"
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"gethomepage.dev/description" = "Headed Chromium WebSocket pool"
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"gethomepage.dev/icon" = "chromium.png"
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"gethomepage.dev/group" = "Infrastructure"
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}
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}
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# --- NetworkPolicy: TCP/3000 ingress only from labelled client namespaces.
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# The cluster has no default-deny, so this NP only takes effect inside
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# chrome-service ns — pods elsewhere remain unaffected. Callers opt in by
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# labelling their namespace `chrome-service.viktorbarzin.me/client = "true"`.
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resource "kubernetes_network_policy_v1" "ws_ingress" {
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metadata {
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name = "chrome-service-ws-ingress"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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}
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spec {
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pod_selector {
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match_labels = local.labels
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}
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policy_types = ["Ingress"]
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ingress {
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from {
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namespace_selector {
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match_labels = {
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"chrome-service.viktorbarzin.me/client" = "true"
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}
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}
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}
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# Explicit fallback list — admit f1-stream by name in case the label
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# is removed by accident. Keep this in sync with the labels above.
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from {
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namespace_selector {
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match_labels = {
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"kubernetes.io/metadata.name" = "f1-stream"
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}
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}
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}
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ports {
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port = "3000"
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protocol = "TCP"
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}
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}
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}
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}
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# --- Backup CronJob: tar+gzip the profile every 6h, 30-day retention. ---
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resource "kubernetes_cron_job_v1" "chrome_service_backup" {
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metadata {
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name = "chrome-service-backup"
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namespace = kubernetes_namespace.chrome_service.metadata[0].name
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}
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spec {
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concurrency_policy = "Replace"
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failed_jobs_history_limit = 3
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successful_jobs_history_limit = 1
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schedule = "47 */6 * * *"
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starting_deadline_seconds = 60
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job_template {
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metadata {}
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spec {
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backoff_limit = 2
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ttl_seconds_after_finished = 300
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template {
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metadata {}
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spec {
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# PVC is RWO — colocate the backup pod with the chrome-service
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# pod so both can mount the volume on the same node.
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affinity {
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pod_affinity {
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required_during_scheduling_ignored_during_execution {
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label_selector {
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match_labels = local.labels
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}
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topology_key = "kubernetes.io/hostname"
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}
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}
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}
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container {
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name = "backup"
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image = "docker.io/library/alpine:3.20"
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command = ["/bin/sh", "-c", <<-EOT
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set -euxo pipefail
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ts=$(date +"%Y_%m_%d_%H")
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tar -czf /backup/$${ts}.tar.gz -C /profile .
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find /backup -maxdepth 1 -type f -name '*.tar.gz' -mtime +30 -delete
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echo "Backup complete: $${ts}.tar.gz"
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EOT
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]
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volume_mount {
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name = "profile"
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mount_path = "/profile"
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read_only = true
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}
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volume_mount {
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name = "backup"
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mount_path = "/backup"
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}
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resources {
|
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requests = { cpu = "10m", memory = "32Mi" }
|
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limits = { memory = "64Mi" }
|
||||
}
|
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}
|
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volume {
|
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name = "profile"
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persistent_volume_claim {
|
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claim_name = kubernetes_persistent_volume_claim.profile_encrypted.metadata[0].name
|
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}
|
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}
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volume {
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name = "backup"
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persistent_volume_claim {
|
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claim_name = module.nfs_chrome_service_backup_host.claim_name
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}
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}
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restart_policy = "OnFailure"
|
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}
|
||||
}
|
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}
|
||||
}
|
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}
|
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lifecycle {
|
||||
# KYVERNO_LIFECYCLE_V1: Kyverno admission webhook mutates dns_config with ndots=2
|
||||
ignore_changes = [spec[0].job_template[0].spec[0].template[0].spec[0].dns_config]
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue