infra/stacks/authentik/authentik_provider.tf
Viktor Barzin 40a6cd067b authentik: long-lived authenticated sessions, short-lived anonymous ones
- Adopt UserLoginStage (default-authentication-login) into Terraform
  and pin session_duration=weeks=4 so users stay logged in across
  browser restarts. There is no Brand.session_duration in 2026.2.x;
  UserLoginStage is the only correct lever.
- Cap anonymous Django sessions at 2h via
  AUTHENTIK_SESSIONS__UNAUTHENTICATED_AGE on server + worker pods
  (default is days=1). Bots, healthcheckers, and partial flows now
  get reaped within 2h instead of accumulating for a day.

Implementation note: the env var is injected via server.env /
worker.env rather than authentik.sessions.unauthenticated_age,
because authentik.existingSecret.secretName is set, which makes the
chart skip rendering its own AUTHENTIK_* Secret. authentik.* values
are therefore inert in this stack -- this is documented in
.claude/reference/authentik-state.md so future edits use the right
surface.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-01 19:03:50 +00:00

90 lines
3.6 KiB
HCL

# goauthentik/authentik Terraform provider.
#
# Adopted 2026-04-18 (Wave 6a of the state-drift consolidation plan) to bring
# the catch-all Proxy Provider — previously managed only via the Authentik UI
# — under Terraform management. API token lives in Vault
# `secret/authentik/tf_api_token` (token identifier `terraform-infra-stack`,
# intent API, user akadmin, no expiry). Required-providers declaration sits
# in the central terragrunt.hcl so every stack has it available; only this
# stack configures a provider block.
data "vault_kv_secret_v2" "authentik_tf" {
mount = "secret"
name = "authentik"
}
provider "authentik" {
url = "https://authentik.viktorbarzin.me"
token = data.vault_kv_secret_v2.authentik_tf.data["tf_api_token"]
}
data "authentik_flow" "default_authorization_implicit_consent" {
slug = "default-provider-authorization-implicit-consent"
}
data "authentik_flow" "default_provider_invalidation" {
slug = "default-provider-invalidation-flow"
}
# -----------------------------------------------------------------------------
# Catch-all Proxy Provider + Application.
#
# Created via the Authentik UI ~a year ago; adopted into Terraform 2026-04-18
# (Wave 6a). The proxy provider is consumed by the embedded outpost
# (uuid 0eecac07-97c7-443c-8925-05f2f4fe3e47) via an outpost-level binding
# that stays in the UI — it's a single toggle with no drift risk.
# -----------------------------------------------------------------------------
resource "authentik_application" "catchall" {
name = "Domain wide catch all"
slug = "domain-wide-catch-all"
protocol_provider = authentik_provider_proxy.catchall.id
lifecycle {
ignore_changes = [meta_description, meta_launch_url, meta_icon, group, backchannel_providers, policy_engine_mode, open_in_new_tab]
}
}
resource "authentik_provider_proxy" "catchall" {
name = "Provider for Domain wide catch all"
mode = "forward_domain"
external_host = "https://authentik.viktorbarzin.me"
cookie_domain = "viktorbarzin.me"
# Flow UUIDs resolved dynamically so a flow re-creation (keeping the slug)
# doesn't require an HCL edit.
authorization_flow = data.authentik_flow.default_authorization_implicit_consent.id
invalidation_flow = data.authentik_flow.default_provider_invalidation.id
lifecycle {
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, access_token_validity]
}
}
# -----------------------------------------------------------------------------
# Default User Login stage — bound to default-authentication-flow.
# Adopted into Terraform 2026-05-01 to set session_duration=weeks=4 so users
# stay logged in across browser restarts. There is no Brand.session_duration
# in authentik 2026.2.x — UserLoginStage is the correct knob.
# -----------------------------------------------------------------------------
data "authentik_stage" "default_authentication_login" {
name = "default-authentication-login"
}
import {
to = authentik_stage_user_login.default_login
id = data.authentik_stage.default_authentication_login.id
}
resource "authentik_stage_user_login" "default_login" {
name = "default-authentication-login"
session_duration = "weeks=4"
lifecycle {
# Pin only session_duration; everything else stays UI-managed so the
# plan doesn't churn unrelated knobs (e.g. remember_me_offset toggles).
ignore_changes = [
remember_me_offset,
terminate_other_sessions,
geoip_binding,
network_binding,
]
}
}