None of the CNPG clusters had any backup configured, so a lost PVC or a bad
migration meant permanent data loss. This adds continuous WAL archiving plus a
nightly base backup to Ceph RGW for every cluster, with restore docs.
- Add spec.backup.barmanObjectStore (in-tree; operator is CNPG 1.28, Barman
Cloud Plugin not deployed) to each cnpg_cluster.yaml: WAL zstd, base bzip2,
30-day retention, endpointCA via the reflected vault-ca-cert.
- Add cnpg_backup.yaml per app: a cephrgw ObjectStoreUser + Bucket (one
dedicated s3://cnpg-<app> bucket and owner user per cluster, since cephrgw CRs
and the CNPG credential Secret are namespace-scoped) and a staggered nightly
ScheduledBackup. Credentials are minted by the operator; nothing is hardcoded.
- Add the three ceph.unkin.net CRD schemas so kubeconform can validate the CRs.
- Add docs/ (README index, cnpg-backups.md, cnpg-restore.md) covering config and
full/PITR restore procedures.
Claude-Session: https://claude.ai/code/session_015ur3i7D2azsMAWTSVABApv
## Why
encapi is the new Postgres-backed Puppet ENC that replaces Cobbler (Go API + encapi-cli + terraform provider). It needs to run somewhere reachable by the puppet masters (`encapi-cli classify`) and every node's `enc_direct_facts` fact. Deploy it in k8s alongside artifactapi, exposed at `encapi.k8s.syd1.au.unkin.net`.
## Changes
- add `apps/base/encapi/`: namespace, deployment (`git.unkin.net/unkin/encapi`, port 8000, `/healthz` probes), service, gateway + httproute (`encapi.k8s.syd1.au.unkin.net`, traefik-internal), configmap (DB coordinates), CNPG cluster + pooler (database `encapi`), and VaultAuth + VaultStaticSecrets (`postgres-credentials`, `environment`)
- add `apps/overlays/au-syd1/encapi` overlay referencing the base
- register `apps/overlays/*/encapi` in the platform ApplicationSet so ArgoCD picks it up
## Notes
- Mirrors the artifactapi pattern (VaultAuth role `default`, namespace-scoped VSO paths `kv/kubernetes/namespace/encapi/default/*`).
- Before first sync, seed the Vault KV secrets: `environment` must carry `DBPASS` (matching the CNPG owner password) and `ENCAPI_WRITE_TOKEN`; `postgres-credentials` carries the CNPG owner username/password.
- `kustomize build apps/overlays/au-syd1/encapi` validates clean (11 resources).
---------
Co-authored-by: unkinben <neotheo@gmail.com>
Reviewed-on: #230
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>