2019-01-22 21:14:58 +00:00
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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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---
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2021-07-03 09:03:50 +00:00
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apiVersion: rbac.authorization.k8s.io/v1
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2019-01-22 21:14:58 +00:00
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kind: ClusterRole
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metadata:
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labels:
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kubernetes.io/bootstrapping: rbac-defaults
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name: system:coredns
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rules:
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- apiGroups:
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- ""
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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:
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- list
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- watch
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- apiGroups:
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2021-04-09 23:47:16 +00:00
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- discovery.k8s.io
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2019-01-22 21:14:58 +00:00
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resources:
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2021-04-09 23:47:16 +00:00
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- endpointslices
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2019-01-22 21:14:58 +00:00
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verbs:
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2021-04-09 23:47:16 +00:00
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- list
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- watch
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2019-01-22 21:14:58 +00:00
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---
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2021-07-03 09:03:50 +00:00
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apiVersion: rbac.authorization.k8s.io/v1
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2019-01-22 21:14:58 +00:00
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kind: ClusterRoleBinding
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metadata:
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annotations:
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rbac.authorization.kubernetes.io/autoupdate: "true"
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labels:
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kubernetes.io/bootstrapping: rbac-defaults
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name: system:coredns
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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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2019-10-14 22:33:49 +00:00
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ready
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2019-04-12 06:06:35 +00:00
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kubernetes %{CLUSTER_DOMAIN}% in-addr.arpa ip6.arpa {
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2019-01-22 21:14:58 +00:00
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pods insecure
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fallthrough in-addr.arpa ip6.arpa
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}
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2019-04-16 23:42:23 +00:00
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hosts /etc/coredns/NodeHosts {
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2020-12-05 01:13:21 +00:00
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ttl 60
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reload 15s
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2019-04-16 23:42:23 +00:00
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fallthrough
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}
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2019-01-22 21:14:58 +00:00
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prometheus :9153
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2019-09-19 00:11:04 +00:00
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forward . /etc/resolv.conf
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2019-01-22 21:14:58 +00:00
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cache 30
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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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2019-09-20 01:45:28 +00:00
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apiVersion: apps/v1
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2019-01-22 21:14:58 +00:00
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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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strategy:
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type: RollingUpdate
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rollingUpdate:
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maxUnavailable: 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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2020-11-19 22:43:49 +00:00
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priorityClassName: "system-cluster-critical"
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2019-01-22 21:14:58 +00:00
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serviceAccountName: coredns
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tolerations:
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- key: "CriticalAddonsOnly"
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operator: "Exists"
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2020-12-02 19:54:13 +00:00
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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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2020-01-08 21:09:20 +00:00
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- key: "node-role.kubernetes.io/master"
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operator: "Exists"
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effect: "NoSchedule"
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2019-01-22 21:14:58 +00:00
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nodeSelector:
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beta.kubernetes.io/os: linux
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containers:
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- name: coredns
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2021-08-06 23:14:58 +00:00
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image: %{SYSTEM_DEFAULT_REGISTRY}%rancher/mirrored-coredns-coredns:1.8.4
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2019-01-22 21:14:58 +00:00
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imagePullPolicy: IfNotPresent
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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: 100m
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memory: 70Mi
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args: [ "-conf", "/etc/coredns/Corefile" ]
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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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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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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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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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2020-05-06 07:53:29 +00:00
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periodSeconds: 10
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timeoutSeconds: 1
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2019-01-22 21:14:58 +00:00
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successThreshold: 1
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2020-05-06 07:53:29 +00:00
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failureThreshold: 3
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2019-10-14 22:33:49 +00:00
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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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2020-05-06 07:53:29 +00:00
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initialDelaySeconds: 0
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periodSeconds: 2
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timeoutSeconds: 1
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2019-10-14 22:33:49 +00:00
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successThreshold: 1
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2020-05-06 07:53:29 +00:00
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failureThreshold: 3
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2019-01-22 21:14:58 +00:00
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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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2019-04-16 23:42:23 +00:00
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- key: NodeHosts
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path: NodeHosts
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2019-01-22 21:14:58 +00:00
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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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annotations:
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prometheus.io/port: "9153"
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prometheus.io/scrape: "true"
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labels:
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k8s-app: kube-dns
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kubernetes.io/cluster-service: "true"
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kubernetes.io/name: "CoreDNS"
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spec:
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selector:
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k8s-app: kube-dns
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2019-03-06 23:22:55 +00:00
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clusterIP: %{CLUSTER_DNS}%
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2019-01-22 21:14:58 +00:00
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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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- name: dns-tcp
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port: 53
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protocol: TCP
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- name: metrics
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port: 9153
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protocol: TCP
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