Add pv and pvc

cluster/postgresql/pgsql-pv.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: data-postgresql-pv
+  namespace: postgresql-ns
+spec:
+  capacity:
+    storage: 20Gi
+  accessModes:
+    - ReadWriteMany
+  nfs:
+    path: /volume1/tank/database
+    server: 10.0.3.5

cluster/postgresql/pgsql-pvc.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: data-postgresql-pvc
+  namespace: postgresql
+spec:
+  accessModes:
+    - ReadWriteMany
+  storageClassName: ""
+  resources:
+    requests:
+      storage: 20Gi