---
type: reference
description: "The PostgreSQL 16 database for [Authentik](Authentik.md) — the homelab's SSO /"
tags:
  - infrastructure
  - authentik
  - postgres
timestamp: 2026-08-28
---

# authentik-postgres

The PostgreSQL 16 database for [Authentik](Authentik.md) — the homelab's SSO /
OIDC provider. It is the only stateful store in the stack (users, flows,
sessions, events). Redis was removed in Authentik 2025.10; sessions and caching
now live here.

- **Compose service:** `authentik-postgres` (in `dankclaw/compose.yaml`)
- **Image:** `docker.io/library/postgres:16-alpine`
- **Data:** `/home/dank/authentik/postgres` (bind mount; no named volumes)
- **Health:** `pg_isready -d authentik -U authentik`

See [Authentik.md](Authentik.md) for the full architecture, setup, backups
(`pg_dump`), and failure modes.