infra/stacks/f1-stream/main.tf
Viktor Barzin 3da01e6e1e anubis: only challenge GET requests; allow everything else
PrivateBin's XHR `POST /` (paste creation) was the trigger — Anubis's
catch-all CHALLENGE rule served an HTML challenge page where the JS
expected JSON, breaking paste creation entirely. Same shape will hit
any SPA XHR or CORS preflight on the other 8 Anubis-fronted sites
(homepage actions, kms upload-then-poll, wrongmove search refresh,
jsoncrack share, etc.) the moment it gets exercised.

Add an `ALLOW` rule keyed on `method != "GET"` between the AI/UA-block
imports and the catch-all CHALLENGE. Rationale:

  * AI scrapers consume GET response bodies — they don't POST.
  * State-mutating XHRs and OPTIONS preflight need to bypass the
    challenge or the app breaks.
  * CrowdSec + per-route rate-limit + app-level auth already cover
    abuse on mutating methods, so this gives up nothing.
  * Hard-deny rules for known-bad bots run first, so a declared bad
    bot can't sneak through by sending a POST.

Also added a `checksum/policy` annotation on the Anubis pod template
sourced from `sha256(coalesce(var.policy_yaml, default_policy_yaml))`
so future policy changes auto-roll the deployment instead of needing
a manual `kubectl rollout restart`.

f1-stream had its own policy override (path carve-outs for SvelteKit
asset hashes and JSON data routes); mirrored the new rule there too.

Applied to all 8 Anubis-fronted stacks: blog, kms, f1-stream,
travel_blog, real-estate-crawler, homepage, cyberchef, jsoncrack.
Verified per stack: GET / returns the Anubis challenge page; POST,
PUT, DELETE, OPTIONS pass through to the backend (HTTP 301/405/502
from the upstream app, never the Anubis "not a bot" HTML).
2026-05-22 14:16:40 +00:00

295 lines
8.8 KiB
HCL

variable "tls_secret_name" {
type = string
sensitive = true
}
variable "nfs_server" { type = string }
variable "discord_f1_guild_id" { type = string }
variable "discord_f1_channel_ids" { type = string }
resource "kubernetes_namespace" "f1-stream" {
metadata {
name = "f1-stream"
labels = {
"istio-injection" : "disabled"
tier = local.tiers.aux
"chrome-service.viktorbarzin.me/client" = "true"
}
}
lifecycle {
# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode ClusterPolicy stamps this label on every namespace
ignore_changes = [metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"]]
}
}
resource "kubernetes_manifest" "external_secret" {
manifest = {
apiVersion = "external-secrets.io/v1beta1"
kind = "ExternalSecret"
metadata = {
name = "f1-stream-secrets"
namespace = "f1-stream"
}
spec = {
refreshInterval = "15m"
secretStoreRef = {
name = "vault-kv"
kind = "ClusterSecretStore"
}
target = {
name = "f1-stream-secrets"
}
dataFrom = [{
extract = {
key = "f1-stream"
}
}]
}
}
depends_on = [kubernetes_namespace.f1-stream]
}
# Pull the chrome-service bearer token into this namespace as a separate
# Secret so the verifier can reach the in-cluster Playwright pool.
resource "kubernetes_manifest" "chrome_service_client_secret" {
manifest = {
apiVersion = "external-secrets.io/v1beta1"
kind = "ExternalSecret"
metadata = {
name = "chrome-service-client-secrets"
namespace = "f1-stream"
}
spec = {
refreshInterval = "15m"
secretStoreRef = {
name = "vault-kv"
kind = "ClusterSecretStore"
}
target = {
name = "chrome-service-client-secrets"
}
dataFrom = [{
extract = {
key = "chrome-service"
}
}]
}
}
depends_on = [kubernetes_namespace.f1-stream]
}
resource "kubernetes_persistent_volume_claim" "data_proxmox" {
wait_until_bound = false
metadata {
name = "f1-stream-data-proxmox"
namespace = kubernetes_namespace.f1-stream.metadata[0].name
annotations = {
"resize.topolvm.io/threshold" = "80%"
"resize.topolvm.io/increase" = "100%"
"resize.topolvm.io/storage_limit" = "5Gi"
}
}
spec {
access_modes = ["ReadWriteOnce"]
storage_class_name = "proxmox-lvm"
resources {
requests = {
storage = "1Gi"
}
}
}
}
resource "kubernetes_deployment" "f1-stream" {
metadata {
name = "f1-stream"
namespace = kubernetes_namespace.f1-stream.metadata[0].name
labels = {
app = "f1-stream"
tier = local.tiers.aux
}
annotations = {
"reloader.stakater.com/auto" = "true"
}
}
spec {
replicas = 1
strategy {
type = "Recreate"
}
selector {
match_labels = {
app = "f1-stream"
}
}
template {
metadata {
labels = {
app = "f1-stream"
}
}
spec {
container {
image = "viktorbarzin/f1-stream:latest"
image_pull_policy = "Always"
name = "f1-stream"
resources {
limits = {
memory = "1Gi"
}
requests = {
cpu = "100m"
memory = "1Gi"
}
}
port {
container_port = 8000
}
env {
name = "DISCORD_TOKEN"
value_from {
secret_key_ref {
name = "f1-stream-secrets"
key = "discord_user_token"
}
}
}
env {
name = "DISCORD_CHANNELS"
value = var.discord_f1_channel_ids
}
# Verifier connects to in-cluster headed Chromium pool — see
# stacks/chrome-service/. Falls back to in-process headless if unset.
env {
name = "CHROME_WS_URL"
value = "ws://chrome-service.chrome-service.svc.cluster.local:3000"
}
env {
name = "CHROME_WS_TOKEN"
value_from {
secret_key_ref {
name = "chrome-service-client-secrets"
key = "api_bearer_token"
}
}
}
# The embed proxy (this pod's /embed?url=…) must be reachable from
# the remote chrome-service pod. Default 127.0.0.1 only works for
# in-process Chromium — for the remote browser we point it at our
# own ClusterIP service.
env {
name = "PLAYBACK_VERIFY_PROXY_BASE"
value = "http://f1.f1-stream.svc.cluster.local"
}
volume_mount {
name = "data"
mount_path = "/data"
}
}
volume {
name = "data"
persistent_volume_claim {
claim_name = kubernetes_persistent_volume_claim.data_proxmox.metadata[0].name
}
}
}
}
}
lifecycle {
# KYVERNO_LIFECYCLE_V1: Kyverno admission webhook mutates dns_config with ndots=2
ignore_changes = [spec[0].template[0].spec[0].dns_config]
}
}
resource "kubernetes_service" "f1-stream" {
metadata {
name = "f1"
namespace = kubernetes_namespace.f1-stream.metadata[0].name
labels = {
"app" = "f1-stream"
}
}
spec {
selector = {
app = "f1-stream"
}
port {
port = "80"
target_port = "8000"
}
}
}
module "tls_secret" {
source = "../../modules/kubernetes/setup_tls_secret"
namespace = kubernetes_namespace.f1-stream.metadata[0].name
tls_secret_name = var.tls_secret_name
}
# f1-stream serves its SvelteKit SPA via the FastAPI `/{path}` catch-all
# and exposes 14 JSON/proxy routes at root (/schedule, /streams, /embed,
# /embed-asset, /relay, /proxy, /extract, /extractors, /health). A flat
# Anubis catch-all CHALLENGE breaks the SPA's XHRs with "Unexpected token
# '<', '<!doctype '" because the schedule fetch lands on the challenge HTML.
# Custom policy: ALLOW the known JSON routes + SvelteKit `_app/` assets
# (which load before any user has a chance to solve PoW), CHALLENGE
# everything else — the HTML pages.
module "anubis" {
source = "../../modules/kubernetes/anubis_instance"
name = "f1"
namespace = kubernetes_namespace.f1-stream.metadata[0].name
target_url = "http://${kubernetes_service.f1-stream.metadata[0].name}.${kubernetes_namespace.f1-stream.metadata[0].name}.svc.cluster.local"
policy_yaml = <<-EOT
bots:
- import: (data)/bots/_deny-pathological.yaml
- import: (data)/bots/aggressive-brazilian-scrapers.yaml
- import: (data)/meta/ai-block-aggressive.yaml
- import: (data)/crawlers/_allow-good.yaml
- import: (data)/clients/x-firefox-ai.yaml
- import: (data)/common/keep-internet-working.yaml
# SvelteKit immutable assets (CSS/JS chunks) and OpenAPI/health routes —
# served pre-cookie, must pass without challenge.
- name: f1-svelte-assets-and-meta
path_regex: ^/(_app/|openapi\.json|docs|api/)
action: ALLOW
# Application JSON routes — XHR'd by the SPA after the user has solved
# the PoW for `/`. We allow them unconditionally because the alternative
# (carve-out per route via separate Ingress objects) is brittle and
# because the data they expose (stream URLs, schedule metadata) is not
# the AI-scraping target — the HTML/SPA is.
- name: f1-data-routes
path_regex: ^/(embed|embed-asset|extract|extractors|health|proxy|relay|schedule|streams)(/|\?|$)
action: ALLOW
# Allow non-GET methods unconditionally — AI scrapers GET the body,
# they don't POST. Mutating XHRs and CORS preflight need to bypass.
- name: allow-non-get-methods
action: ALLOW
expression: method != "GET"
- name: catchall-challenge
path_regex: .*
action: CHALLENGE
EOT
}
module "ingress" {
source = "../../modules/kubernetes/ingress_factory"
dns_type = "non-proxied"
namespace = kubernetes_namespace.f1-stream.metadata[0].name
name = "f1"
service_name = module.anubis.service_name
port = module.anubis.service_port
tls_secret_name = var.tls_secret_name
exclude_crowdsec = true
anti_ai_scraping = false
extra_middlewares = ["traefik-x402@kubernetescrd"]
extra_annotations = {
"gethomepage.dev/enabled" = "true"
"gethomepage.dev/name" = "F1 Stream"
"gethomepage.dev/description" = "Formula 1 live streams"
"gethomepage.dev/icon" = "si-f1"
"gethomepage.dev/group" = "Media & Entertainment"
"gethomepage.dev/pod-selector" = ""
}
}