chore(database): add networkpolicy

Author: duanhongyi

charts/database/templates/database-networkpolicy.yaml

@@ -0,0 +1,13 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: drycc-database
+spec:
+  podSelector:
+    matchLabels:
+      app: drycc-database
+  policyTypes:
+  - Ingress
+  ingress:
+  - from:
+    - podSelector: {}