apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: approval-engine-default-deny
  namespace: approval-engine
spec:
  podSelector: {}
  policyTypes: [Ingress, Egress]
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: approval-engine-callers
  namespace: approval-engine
spec:
  podSelector:
    matchLabels:
      app.kubernetes.io/name: approval-engine
  policyTypes: [Ingress]
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: secrets-engine
        - namespaceSelector:
            matchLabels:
              railiance.io/approval-engine-client: "true"
      ports:
        - {protocol: TCP, port: 8080}
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: approval-engine-egress
  namespace: approval-engine
spec:
  podSelector:
    matchLabels:
      app.kubernetes.io/name: approval-engine
  policyTypes: [Egress]
  egress:
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: sso
      ports:
        - {protocol: TCP, port: 8080}
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: audit-core
      ports:
        - {protocol: TCP, port: 8080}
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
      ports:
        - {protocol: UDP, port: 53}
        - {protocol: TCP, port: 53}