apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: znc
  namespace: irc
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: znc
  action: ALLOW
  rules:
  - from:
    - source:
        namespaces:
        - irc
  - to:
    - operation:
        ports:
        - "6501"