feat(cnpg): initial config

cnpg/config/values.yaml

@@ -0,0 +1,5 @@
+monitoring:
+  podMonitorEnabled: true
+  grafanaDashboard:
+    create: true
+    namespace: observability-system

cnpg/kustomization.yaml

@@ -0,0 +1,11 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: postgres-system
+
+helmCharts:
+  - name: cloudnative-pg
+    repo: https://cloudnative-pg.github.io/charts
+    version: 0.21.5
+    valuesFile: config/values.yaml
+    namespace: postgres-system