# services/hermes-scm-broker/networkpolicy.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: hermes-scm-broker-isolation
  namespace: hermes-scm
spec:
  podSelector:
    matchLabels:
      app: hermes-scm-broker
  policyTypes: [Ingress, Egress]
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: hermes
          podSelector:
            matchLabels:
              app: hermes-agent
      ports:
        - {protocol: TCP, port: 9081}
  egress:
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
          podSelector:
            matchLabels:
              k8s-app: kube-dns
      ports:
        - {protocol: UDP, port: 53}
        - {protocol: TCP, port: 53}
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: vault
          podSelector:
            matchLabels:
              app: vault
      ports:
        - {protocol: TCP, port: 8200}
    - to:
        - ipBlock:
            cidr: 192.168.22.9/32
      ports:
        - {protocol: TCP, port: 443}