add CloudNativePG operator and HA postgres cluster

apps/cnpg-operator.yaml

@@ -0,0 +1,20 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: cnpg-operator
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: https://cloudnative-pg.github.io/charts
+    chart: cloudnative-pg
+    targetRevision: 0.28.0
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: cnpg-system
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true

apps/postgres.yaml

@@ -0,0 +1,20 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: postgres
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: ssh://git@git.czsk.it/asxpi/k8s-asxpio-gitops.git
+    targetRevision: main
+    path: apps/postgres
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: postgres
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true

apps/postgres/cluster.yaml

@@ -0,0 +1,23 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: postgres-cluster
+  namespace: postgres
+spec:
+  instances: 2
+  primaryUpdateStrategy: unsupervised
+
+  enableSuperuserAccess: true
+
+  postgresql:
+    parameters:
+      shared_buffers: "256MB"
+      max_connections: "200"
+
+  storage:
+    size: 10Gi
+    storageClass: hcloud-volumes
+
+  affinity:
+    enablePodAntiAffinity: true
+    topologyKey: kubernetes.io/hostname

apps/postgres/db-watchparty.yaml

@@ -0,0 +1,10 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Database
+metadata:
+  name: watchparty-db
+  namespace: postgres
+spec:
+  name: watchparty
+  owner: app
+  cluster:
+    name: postgres-cluster

apps/watchparty/deployment.yaml

@@ -24,6 +24,13 @@ spec:
               value: "8080"
             - name: HOST
               value: "0.0.0.0"
+            - name: PG_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-cluster-app
+                  key: password
+            - name: DATABASE_URL
+              value: postgresql://app:$(PG_PASSWORD)@postgres-cluster-rw.postgres.svc.cluster.local:5432/watchparty
           resources:
             requests:
               memory: 256Mi