Erich Blume
2a2ba0bcb7
Reviewed (verified against live state) and stamped last-reviewed on: - reference/services/argocd.md: SSO via Authentik (public PKCE client), dual-cluster management (minikube + ringtail k3s), corrected sync policy (everything is manual sync, including the apps root) - reference/services/authentik.md: blueprint list grown to 8 OIDC clients, postgresql-* secret fields, client-type table - reference/services/grafana.md: TeslaMate datasource now pg.ops.eblu.me:5434 (ringtail), dashboard inventory refreshed, TeslaMate dashboards via pinned-tag init container - reference/infrastructure/unifi.md: UnPoller now a locally-built image - how-to/mealie/plan-a-meal.md: procedure verified; stored API token currently returns 401 (operational fix tracked separately) AGENTS.md: replace the mandatory full ai-docs read with a find-relevant- docs-first rule (bulk ai-docs/ai-sources now opt-in), and document the heph CLI surface for reading and manipulating Blumeops tasks. agent-change-process.md updated to match. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
91 lines
3.6 KiB
Markdown
91 lines
3.6 KiB
Markdown
---
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title: Authentik
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modified: 2026-06-09
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last-reviewed: 2026-06-09
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tags:
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- service
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- security
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- oidc
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---
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# Authentik
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OIDC identity provider for BlumeOps. Authentik is the **source of truth** for user identity — users are created and managed in Authentik, and services authenticate against it via OIDC.
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## Quick Reference
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| Property | Value |
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|----------|-------|
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| **URL** | https://authentik.ops.eblu.me |
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| **Admin UI** | https://authentik.ops.eblu.me/if/admin/ |
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| **Tailscale URL** | https://authentik.tail8d86e.ts.net |
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| **Namespace** | `authentik` |
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| **Cluster** | k3s (ringtail) |
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| **Manifests** | `argocd/manifests/authentik/` |
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| **Container build** | `containers/authentik/default.nix` |
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## Architecture
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Authentik runs on [[ringtail]]'s k3s cluster, isolated from the main services on indri's minikube. This means the IdP is independent of the minikube cluster lifecycle.
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Three deployments:
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- **server** — HTTP/HTTPS interface, handles OIDC flows
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- **worker** — Background tasks, blueprint application
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- **redis** — Caching, sessions, task queue
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## Database
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Uses the shared CNPG `blumeops-pg` cluster on [[indri]], accessed cross-cluster via `pg.ops.eblu.me:5432`. Database `authentik` with managed role.
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## Blueprints
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Authentik configuration is managed via Blueprints (YAML) stored as a ConfigMap mounted into the worker at `/blueprints/custom/`. Current blueprints:
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- **`common.yaml`** — shared identity resources (`admins` group)
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- **`mfa.yaml`** — MFA enforcement on the default authentication flow (`not_configured_action: configure`)
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- One blueprint per OIDC client (provider, application, and policy binding): `grafana.yaml`, `forgejo.yaml`, `zot.yaml`, `argocd.yaml`, `jellyfin.yaml`, `mealie.yaml`, `paperless.yaml`, `heph.yaml`
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Group membership is included in the `profile` scope claim (Authentik built-in). Services use `--group-claim-name groups` to read it.
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Blueprint file: `argocd/manifests/authentik/configmap-blueprint.yaml`
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## OIDC Clients
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| Client | Type |
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|--------|------|
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| [[grafana]] | Confidential |
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| [[forgejo]] | Confidential |
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| [[zot]] | Confidential |
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| [[argocd]] | Public (PKCE, shared by web UI and CLI) |
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| [[jellyfin]] | Confidential |
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| [[mealie]] | Confidential |
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| [[paperless]] | Confidential |
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| heph | Public (PKCE, with `offline_access` for spoke sync refresh tokens) |
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Future clients: [[miniflux]]
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## Secrets
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Injected via [[external-secrets]] from the "Authentik (blumeops)" 1Password item (see [[create-authentik-secrets]] for setup).
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| 1Password Field | Purpose |
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|-----------------|---------|
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| `secret-key` | Authentik secret key |
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| `postgresql-host` / `-port` / `-name` / `-user` / `-password` | PostgreSQL connection |
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| `<client>-client-secret` | OIDC client secret, one per confidential client (grafana, forgejo, zot, jellyfin, mealie, paperless) |
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The item also holds an `api-token` field (Authentik API access for admin scripting); it is not synced into the cluster.
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## Container Image
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Nix-built via `dockerTools.buildLayeredImage`. The entrypoint wrapper symlinks built-in blueprint directories from the Nix store into `/blueprints/` at runtime, allowing custom blueprints to coexist with defaults. `AUTHENTIK_BLUEPRINTS_DIR=/blueprints` overrides the hardcoded Nix store path.
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## Related
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- [[federated-login]] - How authentication works across BlumeOps
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- [[grafana]] - First OIDC client
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- [[deploy-authentik]] - Deployment how-to
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- [[migrate-grafana-to-authentik]] - Grafana SSO migration from Dex
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- [[build-authentik-from-source]] - Nix-based container build
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- [[mirror-authentik-build-deps]] - Supply chain mirrors for the build
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- [[external-secrets]] - Secrets injection from 1Password
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