apiVersion: extensions/v1beta1
kind: NetworkPolicy
metadata:
 name: test-network-policy
 namespace: default
spec:
 podSelector:
  matchLabels:
    role: db
 ingress:
  - from:
     - namespaceSelector:
        matchLabels:
         project: myproject
     - podSelector:
        matchLabels:
         role: frontend
    ports:
     - protocol: tcp
       port: 6379
