apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: aprs-allow-cluster
  namespace: aprs
spec:
  podSelector:
    matchLabels:
      app: aprs
  policyTypes:
    - Ingress
  ingress:
    # Allow Erlang distribution ports from other aprs pods
    - from:
        - podSelector:
            matchLabels:
              app: aprs
      ports:
        - port: 4369
          protocol: TCP
        - port: 9000
          protocol: TCP