# The CloudNativePG operator reaches DNS, the API server (the node, port
# 16443) and the PostgreSQL instances it runs in other namespaces: the
# instance manager's status port (8000) and PostgreSQL (5432), which the
# instances' own policies let in (postgres-cnpg in authentik and immich).
# Besides its own namespace it takes connections only from the node: the
# API server calls its webhook (9443) from there and the kubelet probes
# come from there too (10.1.7.64 is the node's Calico VXLAN address,
# projectcalico.org/IPv4VXLANTunnelAddr). The chart's Application
# (apps/templates/cloudnativepg-helm.yaml) only installs the chart, so
# this folder gets an Application of its own, cloudnative-pg-folder.
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: default
spec:
  podSelector: {}
  policyTypes:
    - Ingress
    - Egress
  ingress:
    - from:
        - podSelector: {}
    - from:
        - ipBlock:
            cidr: 192.168.1.204/32
        - ipBlock:
            cidr: 10.1.7.64/32
  egress:
    - to:
        - podSelector: {}
    - 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:
        - ipBlock:
            cidr: 192.168.1.204/32
      ports:
        - port: 16443
    - to:
        - namespaceSelector: {}
          podSelector:
            matchExpressions:
              - key: cnpg.io/cluster
                operator: Exists
      ports:
        - port: 8000
        - port: 5432