201 lines
4.4 KiB
YAML
201 lines
4.4 KiB
YAML
---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: coredns
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namespace: kube-system
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labels:
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k8s-app: kube-dns
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: system:coredns
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labels:
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k8s-app: kube-dns
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rules:
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- apiGroups: [""]
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resources:
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- endpoints
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- services
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- pods
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- namespaces
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verbs: ["list", "watch"]
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- apiGroups: ["discovery.k8s.io"]
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resources: ["endpointslices"]
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verbs: ["list", "watch"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: system:coredns
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labels:
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k8s-app: kube-dns
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: system:coredns
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subjects:
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- kind: ServiceAccount
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name: coredns
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namespace: kube-system
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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: coredns
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namespace: kube-system
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data:
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Corefile: |-
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.:53 {
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errors
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health {
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lameduck 5s
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}
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ready
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log . {
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class all
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}
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prometheus :9153
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# Return NODATA for AAAA on selected domains to force IPv4.
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template IN AAAA {
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match "(^|\.)huggingface\.co\.$"
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rcode NOERROR
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fallthrough
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}
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kubernetes homelab.lumpiasty.xyz cluster.local in-addr.arpa ip6.arpa {
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pods insecure
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fallthrough in-addr.arpa ip6.arpa
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ttl 30
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}
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forward . /etc/resolv.conf {
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max_concurrent 1000
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}
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cache 30 {
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disable success cluster.local
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disable denial cluster.local
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}
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loop
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reload
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loadbalance
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}
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: coredns
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namespace: kube-system
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labels:
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k8s-app: kube-dns
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kubernetes.io/name: CoreDNS
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spec:
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replicas: 1
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selector:
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matchLabels:
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k8s-app: kube-dns
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template:
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metadata:
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labels:
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k8s-app: kube-dns
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spec:
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priorityClassName: system-cluster-critical
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serviceAccountName: coredns
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tolerations:
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- key: node-role.kubernetes.io/control-plane
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operator: Exists
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effect: NoSchedule
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nodeSelector:
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kubernetes.io/os: linux
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containers:
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- name: coredns
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image: registry.k8s.io/coredns/coredns:v1.14.1
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imagePullPolicy: IfNotPresent
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args: ["-conf", "/etc/coredns/Corefile"]
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ports:
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- containerPort: 53
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name: dns
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protocol: UDP
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- containerPort: 53
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name: dns-tcp
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protocol: TCP
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- containerPort: 9153
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name: metrics
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protocol: TCP
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livenessProbe:
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httpGet:
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path: /health
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port: 8080
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scheme: HTTP
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initialDelaySeconds: 60
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timeoutSeconds: 5
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successThreshold: 1
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failureThreshold: 5
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periodSeconds: 10
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readinessProbe:
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httpGet:
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path: /ready
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port: 8181
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scheme: HTTP
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timeoutSeconds: 1
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successThreshold: 1
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failureThreshold: 3
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periodSeconds: 10
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resources:
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limits:
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memory: 170Mi
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requests:
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cpu: 0
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memory: 70Mi
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securityContext:
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allowPrivilegeEscalation: false
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capabilities:
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add:
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- NET_BIND_SERVICE
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drop:
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- ALL
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readOnlyRootFilesystem: true
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volumeMounts:
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- name: config-volume
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mountPath: /etc/coredns
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readOnly: true
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dnsPolicy: Default
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volumes:
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- name: config-volume
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configMap:
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name: coredns
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items:
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- key: Corefile
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path: Corefile
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: kube-dns
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namespace: kube-system
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labels:
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k8s-app: kube-dns
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kubernetes.io/name: CoreDNS
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spec:
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type: ClusterIP
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clusterIP: 10.43.0.10
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clusterIPs:
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- 10.43.0.10
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- 2001:470:61a3:300::a
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ipFamilyPolicy: RequireDualStack
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ipFamilies:
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- IPv4
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- IPv6
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selector:
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k8s-app: kube-dns
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ports:
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- name: dns
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port: 53
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protocol: UDP
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targetPort: 53
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- name: dns-tcp
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port: 53
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protocol: TCP
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targetPort: 53
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