k8s-deployment/manifests/network-policy.yaml

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kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: default-deny-all
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
---
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: allow-internet-only
spec:
podSelector: {}
policyTypes:
- Egress
egress:
- to:
ports:
- protocol: TCP
port: 53
- protocol: UDP
port: 53
- to:
- ipBlock:
cidr: 0.0.0.0/0
except:
- 10.0.0.0/8
- 192.168.0.0/16
- 172.16.0.0/20