npm/testpolicies/allow-app-frontend-tcp-port-or-udp-port-53.yaml

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-backend-to-frontend-on-port-53-policy
  namespace: testnamespace
spec:
  policyTypes:
    - Egress
  podSelector:
    matchLabels:
      app: frontend
  egress:
    - ports:
        - protocol: TCP
          port: 53
        - protocol: UDP
          port: 53
    - to:
        - namespaceSelector: {}