Mastering Kubernetes - Second Edition

Configuring network policies

Network policies are configured through the NetworkPolicy resource. Here is a sample network policy:

apiVersion: networking.k8s.io/v1kind: NetworkPolicy 
metadata: 
 name: test-network-policy 
 namespace: default 
spec: 
 podSelector: 
  matchLabels: 
    role: db 
 ingress: 
  - from: 
     - namespaceSelector: 
        matchLabels: 
         project: awesome-project 
     - podSelector: 
        matchLabels: 
         role: frontend 
    ports: 
     - protocol: tcp 
       port: 6379