unkin-agent dc02b3eebd Deploy k8up backup operator (platform, k8up-system) (#363)
The k8up CRDs already exist in the cluster (owned by a separate `k8up-crds` Helm release) but the k8up operator itself was never deployed, so no k8up backup/restore custom resources are reconciled. This installs the operator following the cnpg-system pattern (Helm inflated via kustomize `helmCharts`) in the `platform` ArgoCD project, namespace `k8up-system`.

- Add `apps/base/k8up-system/` (Namespace + kustomization).
- Add `apps/overlays/au-syd1/k8up-system/` inflating the **k8up chart `4.10.0`** (pinned) from the artifactapi virtual-helm proxy: `replicaCount: 2` (leader election with hot-standby follower), operator resource requests/limits (20m/128Mi req, 500m/256Mi lim), and ServiceMonitor/PrometheusRule disabled (require Prometheus Operator CRDs).
- Add a `PodDisruptionBudget` (`minAvailable: 1`) in the overlay, since the k8up chart exposes no native PDB value.
- Register `apps/overlays/*/k8up-system` in the platform ApplicationSet.

**CRD management:** The k8up chart ships its CRDs via the Helm `crds/` directory (there is no `installCRDs`/`skipCrds`/`enableCRDCreation` value). The kustomize helm inflator does not emit `crds/`, so `kustomize build` renders only the operator (Deployment, RBAC, SA, Service) and no CRDs. ArgoCD therefore does not fight the existing `k8up-crds` Helm release over CRD ownership.

**platform.yaml (AppProject):** no change needed. The virtual-helm sourceRepo, the `*-system` destination, and the ClusterRole/ClusterRoleBinding/CRD/webhook clusterResourceWhitelist entries are already present and cover everything this app renders.

**Validation:** `kustomize build --enable-helm apps/overlays/au-syd1/k8up-system` succeeds (Deployment replicas 2, PDB, Namespace, RBAC; 0 CRDs). `make kubeconform` reports k8up-system 14/14 valid; the only failure is the pre-existing, unrelated `cattle-system` rancher chart kubeVersion issue. pre-commit passes.

Reviewed-on: #363
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
2026-08-14 00:29:15 +10:00
2026-03-01 16:34:01 +11:00

argocd-apps docs

Operational notes for the manifests in this repo.

Doc What it covers
cnpg-backups.md How CNPG Postgres backups (WAL archiving + nightly base backups) to Ceph RGW are configured.
cnpg-restore.md Restoring a CNPG cluster: full recovery, point-in-time recovery, cutover, and gotchas.
authentik-rancher-sso.md Manual runtime step to point Rancher's OIDC auth at the canonical identity.unkin.net issuer and trust the internal CA.
gitea-migration.md Staged cutover of the git.unkin.net forge from the Puppet VM to the gitea namespace.
ca-rotation.md Rolling the internal unkin.net PKI CA (vault-ca-cert): what Reloader restarts automatically vs. manual/CNPG restarts.
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