# Requires a CNI that enforces NetworkPolicy. Nothing may call the pod; it may only
# resolve DNS and reach the Obsidian Sync servers over HTTPS/WebSocket.
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: obsidian-vault
spec:
  podSelector:
    matchLabels:
      app.kubernetes.io/name: obsidian-vault
  policyTypes: ["Ingress", "Egress"]
  ingress: []
  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:
        - ipBlock:
            cidr: 0.0.0.0/0
            except:
              - 10.0.0.0/8
              - 172.16.0.0/12
              - 192.168.0.0/16
              - 169.254.169.254/32
      ports:
        - { protocol: TCP, port: 443 }