theshire/.archive/cilium/app/netpols/core-dns.yaml

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2024-01-11 15:03:54 -06:00
# yaml-language-server: $schema=https://ks.hsn.dev/cilium.io/ciliumnetworkpolicy_v2.json
---
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: core-dns
namespace: kube-system
specs:
- nodeSelector:
# apply to master nodes
matchLabels:
node-role.kubernetes.io/control-plane: 'true'
ingress:
# core dns -> api server
- fromEndpoints:
- matchLabels:
io.cilium.k8s.policy.serviceaccount: coredns
toPorts:
- ports:
- port: '6443'
protocol: TCP
- nodeSelector:
# apply to all nodes
matchLabels: {}
egress:
# kubelet -> core dns probes
- toEndpoints:
- matchLabels:
io.cilium.k8s.policy.serviceaccount: coredns
toPorts:
- ports:
- port: '8080'
protocol: TCP
- port: '8181'
protocol: TCP
- endpointSelector:
# apply to core dns pods
matchLabels:
io.cilium.k8s.policy.serviceaccount: coredns
ingress:
# kubelet -> core dns probes
- fromEntities:
- host
toPorts:
- ports:
- port: '8080'
protocol: TCP
- port: '8181'
protocol: TCP
egress:
# core dns -> api server
- toEntities:
- kube-apiserver
toPorts:
- ports:
- port: '6443'
protocol: TCP
# core dns -> upstream DNS
- toCIDR:
- 185.12.64.1/32
- 185.12.64.2/32
toPorts:
- ports:
- port: '53'
protocol: UDP