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# Shared PostgreSQL
This directory contains the shared PostgreSQL 17 deployment for Authentik,
Gitea, Netronome, and Statuspage. It creates one database and one login role
per service. Per-service standalone databases were removed after the
migration (Sep 2026); Penpot stays on its own compose PostgreSQL (archived,
not part of the shared instance).
## Compatibility baseline
| Service | Current application | Shared PostgreSQL 17 |
| ---------- | ------------------- | -------------------------------------- |
| Authentik | 2025.10.x | Supported (Authentik requires 14+) |
| Gitea | 1.27.3 | Supported (Gitea requires 12+) |
| Netronome | 0.14.0 | Supported (upstream's example uses 17) |
| Statuspage | custom | Supported |
A major-version change must use a logical dump/restore; changing only the
image tag while keeping a data directory is not supported.
For Compose, copy `.env.example` to `.env`, set all passwords, and start it with
`docker compose -f shared-compose.yaml up -d`. This file is intentionally not
named `compose.yaml`, so the repository deploy workflow does not start a second
database accidentally.
Applications that use this database must also join that external network and use
`homelab-postgres:5432`.
For Kubernetes, create `k8s/secrets.yaml` from the example before applying the
manifests. The `k8s/active` marker makes the normal deploy workflow include the
namespace, StatefulSet, ConfigMap, and NetworkPolicy. Applications use
`postgres.database.svc.cluster.local:5432`.
Migrate each existing database with a tested logical dump/restore before
switching an application. Do not reuse a PostgreSQL 14 or 17 data directory
with PostgreSQL 15.