# NetworkPolicy for signing-service.
#
# Cluster-wide NetworkPolicy enforcement is already active on BasicStack
# (see cluster memory on NetworkPolicy activation). Any pod in agent-trust
# without a policy is isolated by default; this file is the explicit
# allow-list for signing-service.
#
# Ingress: anyone in agent-trust (admin-api, attest-reconciler, transparency-log)
# plus future callers reaching through an in-cluster ingress controller.
# Egress:  DNS (kube-system/coredns), and later the OpenBao Transit namespace
#          and Pocket ID (JWKS) when those backends are wired. For now the
#          service only needs DNS egress — the memory backend and static
#          validator are self-contained.
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: signing-service
  namespace: agent-trust
  labels:
    app.kubernetes.io/name: signing-service
    app.kubernetes.io/part-of: proofedmesh
spec:
  podSelector:
    matchLabels:
      app.kubernetes.io/name: signing-service
  policyTypes:
    - Ingress
    - Egress
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              name: agent-trust
      ports:
        - port: 8081
          protocol: TCP
    # Future: add admin-api / app namespaces here once they are deployed and
    # labelled. Keep the list conservative — add on demand, not speculatively.
  egress:
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
          podSelector:
            matchLabels:
              k8s-app: kube-dns
      ports:
        - port: 53
          protocol: UDP
        - port: 53
          protocol: TCP