# Frontend: Anfragen nur von Traefik. Raus nur zum Backend auf 3001, kein
# Weg zu Postgres und keiner ins Internet.
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: apicore-frontend
spec:
  podSelector:
    matchLabels:
      app: apicore-frontend
  policyTypes: [Ingress, Egress]
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
          podSelector:
            matchLabels:
              app.kubernetes.io/name: rke2-traefik
      ports:
        - {protocol: TCP, port: 3000}
  egress:
    - to:
        - podSelector:
            matchLabels:
              app: apicore-backend
      ports:
        - {protocol: TCP, port: 3001}