97ccdbecb8
Viktor asked to review Authentik and the web tier and make first-time signin to apps faster. Review found the slowness is screens and round trips, not server time. Changes: - values.yaml: the authentik.* Helm values (gunicorn workers, cache timeouts, conn_max_age) were silently INERT because existingSecret skips chart env rendering — pods ran defaults (2 workers, 300s caches, no persistent DB conns). Moved all tuning into server.env/worker.env, which actually reaches the pods. - authentik_provider.tf: adopt the identification stage and pin password_stage so username+password render on ONE screen (the separate order-20 password binding is deleted via API — authentik requires that when embedding). Outpost log_level trace->info and 1->2 replicas (it is on the hot path of every forward-auth request; PG-backed sessions make 2 replicas safe). - authentik module: /static ingress carve-out with immutable Cache-Control (assets are version-fingerprinted but served with no max-age — internal split-horizon users got zero caching). - traefik auth-proxy nginx: upstream keepalive 32 + HTTP/1.1 (was opening a fresh TCP connection to the outpost per subrequest) + config-checksum annotation so config changes roll the pods. - docs: authentication.md + authentik-state.md updated; fixed stale 'postgresql.dbaas has no endpoints' claim in CLAUDE.md/CONTEXT.md (it is a live CNPG primary-selector compatibility service). Done via API in the same change (UI-managed objects): 6 OIDC providers (Vault, Forgejo, Immich, Headscale, linkwarden, Cloudflare Access) switched from explicit to implicit consent — all first-party, the 4-weekly consent screen only slowed first-time signin. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
250 lines
11 KiB
HCL
250 lines
11 KiB
HCL
# goauthentik/authentik Terraform provider.
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#
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# Adopted 2026-04-18 (Wave 6a of the state-drift consolidation plan) to bring
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# the catch-all Proxy Provider — previously managed only via the Authentik UI
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# — under Terraform management. API token lives in Vault
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# `secret/authentik/tf_api_token` (token identifier `terraform-infra-stack`,
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# intent API, user akadmin, no expiry). Required-providers declaration sits
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# in the central terragrunt.hcl so every stack has it available; only this
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# stack configures a provider block.
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data "vault_kv_secret_v2" "authentik_tf" {
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mount = "secret"
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name = "authentik"
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}
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provider "authentik" {
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url = "https://authentik.viktorbarzin.me"
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token = data.vault_kv_secret_v2.authentik_tf.data["tf_api_token"]
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}
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data "authentik_flow" "default_authorization_implicit_consent" {
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slug = "default-provider-authorization-implicit-consent"
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}
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data "authentik_flow" "default_provider_invalidation" {
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slug = "default-provider-invalidation-flow"
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}
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# -----------------------------------------------------------------------------
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# Catch-all Proxy Provider + Application.
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#
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# Created via the Authentik UI ~a year ago; adopted into Terraform 2026-04-18
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# (Wave 6a). The proxy provider is consumed by the embedded outpost
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# (uuid 0eecac07-97c7-443c-8925-05f2f4fe3e47) via an outpost-level binding
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# that stays in the UI — it's a single toggle with no drift risk.
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# -----------------------------------------------------------------------------
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resource "authentik_application" "catchall" {
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name = "Domain wide catch all"
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slug = "domain-wide-catch-all"
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protocol_provider = authentik_provider_proxy.catchall.id
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lifecycle {
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ignore_changes = [meta_description, meta_launch_url, meta_icon, group, backchannel_providers, policy_engine_mode, open_in_new_tab]
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}
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}
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resource "authentik_provider_proxy" "catchall" {
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name = "Provider for Domain wide catch all"
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mode = "forward_domain"
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external_host = "https://authentik.viktorbarzin.me"
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cookie_domain = "viktorbarzin.me"
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# Flow UUIDs resolved dynamically so a flow re-creation (keeping the slug)
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# doesn't require an HCL edit.
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authorization_flow = data.authentik_flow.default_authorization_implicit_consent.id
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invalidation_flow = data.authentik_flow.default_provider_invalidation.id
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# Cookie / proxysession TTL. Drives `Max-Age` on `authentik_proxy_*`
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# cookies and the `expires` column in `authentik_providers_proxy_proxysession`.
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# See note on the embedded outpost below — bumping this requires an outpost
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# pod restart for the gorilla session store to rebind.
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access_token_validity = "weeks=4"
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lifecycle {
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ignore_changes = [property_mappings, jwt_federation_sources, skip_path_regex, internal_host, basic_auth_enabled, basic_auth_password_attribute, basic_auth_username_attribute, intercept_header_auth]
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}
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}
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# -----------------------------------------------------------------------------
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# Embedded outpost record. Adopted into Terraform 2026-05-10 as part of the
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# postgres-session-backend fix:
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# - `managed` is set server-side to `goauthentik.io/outposts/embedded` so
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# the outpost binary's `IsEmbedded()` check returns true → it loads the
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# PostgreSQL session backend (PR #16628). The Terraform provider does
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# NOT expose `managed` in the schema, so the field is preserved across
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# applies (TF only writes fields it knows about).
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# - kubernetes_json_patches.deployment carries:
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# * dshm 2Gi tmpfs (covers the 2026-04-18 ENOSPC class of issues)
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# * resources requests/limits
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# * `app.kubernetes.io/component=server` pod label so the K8s service
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# selector lights up endpoints (works around goauthentik 2026.2.2
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# service.py:52 selector mismatch on standalone embedded outposts).
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# * AUTHENTIK_POSTGRESQL__{HOST,PORT,USER,PASSWORD,NAME} envFrom the
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# shared `goauthentik` Secret so the postgres session backend has
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# credentials to connect to the dbaas cluster.
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# - kubernetes_json_patches.service replaces the controller-set selector
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# (which incorrectly targets `app.kubernetes.io/name=authentik`, i.e.
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# the goauthentik-server pods) with the outpost's own labels.
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# -----------------------------------------------------------------------------
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resource "authentik_outpost" "embedded" {
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name = "authentik Embedded Outpost"
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type = "proxy"
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protocol_providers = [authentik_provider_proxy.catchall.id]
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service_connection = "99e227a7-4562-4888-9660-4c27da678c50"
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config = jsonencode({
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# info, not trace: the outpost sits on the hot path of every request to
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# every auth="required" ingress — trace logging is per-request overhead
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# with no operational value (request access lines are emitted at info).
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log_level = "info"
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docker_labels = null
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authentik_host = "https://authentik.viktorbarzin.me/"
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docker_network = null
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container_image = null
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docker_map_ports = true
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refresh_interval = "minutes=5"
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# 2 replicas: removes the single-pod hot path for all forward-auth
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# subrequests. Safe since sessions moved to the shared Postgres backend
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# (authentik_providers_proxy_proxysession, 2026-05-10) — no pod-local
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# session state anymore.
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kubernetes_replicas = 2
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kubernetes_namespace = "authentik"
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authentik_host_browser = ""
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object_naming_template = "ak-outpost-%(name)s"
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authentik_host_insecure = false
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kubernetes_service_type = "ClusterIP"
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kubernetes_ingress_path_type = null
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kubernetes_image_pull_secrets = []
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kubernetes_ingress_class_name = null
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kubernetes_disabled_components = []
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kubernetes_ingress_annotations = {}
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kubernetes_ingress_secret_name = "authentik-outpost-tls"
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kubernetes_httproute_annotations = {}
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kubernetes_httproute_parent_refs = []
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kubernetes_json_patches = {
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deployment = [
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{
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op = "add"
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path = "/spec/template/spec/volumes"
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value = [{ name = "dshm", emptyDir = { medium = "Memory", sizeLimit = "2Gi" } }]
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/volumeMounts"
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value = [{ name = "dshm", mountPath = "/dev/shm" }]
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/resources"
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value = { limits = { memory = "2560Mi" }, requests = { cpu = "100m", memory = "128Mi" } }
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},
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{
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op = "add"
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path = "/spec/template/metadata/labels/app.kubernetes.io~1component"
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value = "server"
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/env/-"
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value = { name = "AUTHENTIK_POSTGRESQL__HOST", valueFrom = { secretKeyRef = { name = "goauthentik", key = "AUTHENTIK_POSTGRESQL__HOST" } } }
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/env/-"
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value = { name = "AUTHENTIK_POSTGRESQL__PORT", valueFrom = { secretKeyRef = { name = "goauthentik", key = "AUTHENTIK_POSTGRESQL__PORT" } } }
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/env/-"
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value = { name = "AUTHENTIK_POSTGRESQL__USER", valueFrom = { secretKeyRef = { name = "goauthentik", key = "AUTHENTIK_POSTGRESQL__USER" } } }
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/env/-"
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value = { name = "AUTHENTIK_POSTGRESQL__PASSWORD", valueFrom = { secretKeyRef = { name = "goauthentik", key = "AUTHENTIK_POSTGRESQL__PASSWORD" } } }
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},
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{
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op = "add"
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path = "/spec/template/spec/containers/0/env/-"
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value = { name = "AUTHENTIK_POSTGRESQL__NAME", valueFrom = { secretKeyRef = { name = "goauthentik", key = "AUTHENTIK_POSTGRESQL__NAME" } } }
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},
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]
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service = [
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{
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op = "replace"
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path = "/spec/selector"
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value = {
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"app.kubernetes.io/managed-by" = "goauthentik.io"
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"app.kubernetes.io/name" = "authentik-outpost-proxy"
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"goauthentik.io/outpost-name" = "authentik-embedded-outpost"
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"goauthentik.io/outpost-type" = "proxy"
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"goauthentik.io/outpost-uuid" = "0eecac0797c7443c892505f2f4fe3e47"
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}
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},
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]
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}
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})
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}
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# -----------------------------------------------------------------------------
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# Default User Login stage — bound to default-authentication-flow.
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# Adopted into Terraform 2026-05-01 to set session_duration=weeks=4 so users
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# stay logged in across browser restarts. There is no Brand.session_duration
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# in authentik 2026.2.x — UserLoginStage is the correct knob.
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# -----------------------------------------------------------------------------
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resource "authentik_stage_user_login" "default_login" {
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name = "default-authentication-login"
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session_duration = "weeks=4"
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lifecycle {
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# Pin only session_duration; everything else stays UI-managed so the
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# plan doesn't churn unrelated knobs (e.g. remember_me_offset toggles).
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ignore_changes = [
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remember_me_offset,
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terminate_other_sessions,
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geoip_binding,
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network_binding,
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]
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}
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}
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# -----------------------------------------------------------------------------
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# Default Identification stage — adopted 2026-06-10 to embed the password
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# field on the identification screen (single-screen login: one round trip and
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# one screen instead of two). Per authentik docs, when an Identification stage
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# carries a password stage the Password stage must NOT be bound separately —
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# the redundant order-20 binding on default-authentication-flow (pk
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# 0fc677db-a23f-4ee7-8648-da342e14573b) was deleted via the API in the same
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# change. Social-login users are unaffected: source buttons stay on the same
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# screen and bypass the password field.
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# -----------------------------------------------------------------------------
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import {
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to = authentik_stage_identification.default_identification
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id = "32aca5ab-106e-43f4-a4cc-4513d80e57f3"
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}
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data "authentik_stage" "default_authentication_password" {
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name = "default-authentication-password"
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}
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resource "authentik_stage_identification" "default_identification" {
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name = "default-authentication-identification"
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password_stage = data.authentik_stage.default_authentication_password.id
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lifecycle {
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# Pin only password_stage; everything else stays UI-managed (same pattern
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# as authentik_stage_user_login.default_login above).
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ignore_changes = [
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user_fields,
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case_insensitive_matching,
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show_matched_user,
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show_source_labels,
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sources,
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enrollment_flow,
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recovery_flow,
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passwordless_flow,
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pretend_user_exists,
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captcha_stage,
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webauthn_stage,
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enable_remember_me,
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]
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}
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}
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