kube/shared/networkpolicy-base.yml

---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: kubedns
spec:
  podSelector: {}
  policyTypes:
  - Egress
  egress:
  - to:
    - namespaceSelector:
        matchLabels:
          kubernetes.io/metadata.name: kube-system
    ports:
    - protocol: UDP
      port: 53
    - protocol: TCP
      port: 53
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: kubeprobe
spec:
  podSelector: {}
  policyTypes:
  - Ingress
  ingress:
  - from:
    - ipBlock:
        cidr: 10.244.0.1/32
  - from:
    - ipBlock:
        cidr: 10.244.1.1/32
  - from:
    - ipBlock:
        cidr: 10.244.2.1/32
  - from:
    - ipBlock:
        cidr: 10.244.9.1/32
  - from:
    - ipBlock:
        cidr: 10.244.4.1/32
  - from:
    - ipBlock:
        cidr: 10.244.3.1/32
  - from:
    - ipBlock:
        cidr: 10.244.5.1/32
  - from:
    - ipBlock:
        cidr: 10.244.7.1/32
  - from:
    - ipBlock:
        cidr: 10.244.11.1/32
  - from:
    - ipBlock:
        cidr: 10.244.12.1/32
  - from:
    - ipBlock:
        cidr: 10.244.6.1/32
  - from:
    - ipBlock:
        cidr: 10.244.10.1/32
  - from:
    - ipBlock:
        cidr: 10.244.8.1/32
  - from:
    - ipBlock:
        cidr: 10.244.13.1/32
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: kubeapi
spec:
  podSelector: {}
  policyTypes:
  - Egress
  egress:
  - ports:
    - port: 6443
    to:
    - ipBlock:
        cidr: 172.21.3.51/32
    - ipBlock:
        cidr: 172.21.3.52/32
    - ipBlock:
        cidr: 172.21.3.53/32