Add CloudNativePG for Authentik

apps/cloudnative-pg.yaml

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+# CloudNativePG manages PostgreSQL databases as Kubernetes resources. The
+# companion Barman Cloud plugin sends database backups and transaction logs to
+# object storage; installing both here gives future apps one shared database
+# operator without forcing them to share one PostgreSQL server.
+#
+# Deliberately NO resources-finalizer.argocd.argoproj.io here. PostgreSQL
+# clusters managed by this operator hold application data, so removing this
+# Application must not cascade into a surprise deletion of database machinery.
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: cloudnative-pg
+  namespace: argocd
+spec:
+  project: default
+
+  source:
+    repoURL: https://tea.ahmza.com/ahmza.com/k8s-starter-pack.git
+    targetRevision: main
+    path: apps/cloudnative-pg
+
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: cnpg-system
+
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      # Both dependencies install cluster-wide CRDs. Server-side apply avoids
+      # annotation-size limits and lets Kubernetes handle CRD fields safely.
+      - ServerSideApply=true

apps/cloudnative-pg/Chart.yaml

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+# One umbrella chart installs the PostgreSQL operator and its current backup
+# plugin together. Applications create their own independent PostgreSQL
+# Cluster resources; these shared controllers hold no application data.
+apiVersion: v2
+name: cloudnative-pg-app
+description: >-
+  Installs CloudNativePG and the Barman Cloud object-storage backup plugin
+version: 0.1.0
+type: application
+
+dependencies:
+  - name: cloudnative-pg
+    # Pin versions so an unrelated Git sync cannot silently upgrade the
+    # controller responsible for every PostgreSQL database in the cluster.
+    version: 0.29.1
+    repository: https://cloudnative-pg.github.io/charts
+  - name: plugin-barman-cloud
+    version: 0.8.1
+    repository: https://cloudnative-pg.github.io/charts