apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: default-deny-ingress
  namespace: reitti
spec:
  podSelector: {}
  policyTypes:
    - Ingress
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-ingress-controller
  namespace: reitti
spec:
  podSelector:
    matchLabels:
      app: reitti
  policyTypes:
    - Ingress
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: traefik
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-app-to-db
  namespace: reitti
spec:
  podSelector:
    matchLabels:
      app: reitti-db
  policyTypes:
    - Ingress
  ingress:
    - from:
        - podSelector:
            matchLabels:
              app: reitti
      ports:
        - port: 5432
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-backup-to-db
  namespace: reitti
spec:
  podSelector:
    matchLabels:
      app: reitti-db
  policyTypes:
    - Ingress
  ingress:
    - from:
        - podSelector:
            matchLabels:
              app: reitti-backup
      ports:
        - port: 5432
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-backup-egress
  namespace: reitti
spec:
  podSelector:
    matchLabels:
      app: reitti-backup
  policyTypes:
    - Egress
  egress:
    - ports:
        - port: 53
          protocol: UDP
        - port: 53
          protocol: TCP
    - ports:
        - port: 8888
          protocol: TCP
    - ports:
        - port: 443
          protocol: TCP
    - ports:
        - port: 5432
          protocol: TCP
      to:
        - podSelector:
            matchLabels:
              app: reitti-db
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-app-to-redis
  namespace: reitti
spec:
  podSelector:
    matchLabels:
      app: reitti-redis
  policyTypes:
    - Ingress
  ingress:
    - from:
        - podSelector:
            matchLabels:
              app: reitti
      ports:
        - port: 6379
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-app-to-tile-cache
  namespace: reitti
spec:
  podSelector:
    matchLabels:
      app: reitti-tile-cache
  policyTypes:
    - Ingress
  ingress:
    - from:
        - podSelector:
            matchLabels:
              app: reitti
      ports:
        - port: 80