166 lines
3.6 KiB
YAML
166 lines
3.6 KiB
YAML
apiVersion: v1
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kind: ConfigMap
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metadata:
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name: coredns
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labels:
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k8s-app: coredns
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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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kubernetes 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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prometheus 0.0.0.0:9153
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forward . /etc/resolv.conf
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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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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: coredns
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labels:
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k8s-app: 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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- discovery.k8s.io
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resources:
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- endpointslices
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verbs:
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- list
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- 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: coredns
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labels:
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k8s-app: 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: coredns
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subjects:
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- kind: ServiceAccount
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name: default
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namespace: kube-system
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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: coredns
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labels:
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k8s-app: coredns
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spec:
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selector:
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k8s-app: coredns
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ports:
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- { "name": "udp-53", "port": 53, "protocol": "UDP" }
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- { "name": "tcp-53", "port": 53, "protocol": "TCP" }
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type: ClusterIP
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clusterIP: 10.32.0.10
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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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labels:
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k8s-app: 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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maxSurge: 25%
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selector:
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matchLabels:
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k8s-app: coredns
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template:
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metadata:
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labels:
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k8s-app: coredns
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annotations:
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checksum/config: 158d059c22a85c971e58da7eb18cd7fdf4ddd759f217f75f61d7d1a82e1167e6
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scheduler.alpha.kubernetes.io/critical-pod: ""
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scheduler.alpha.kubernetes.io/tolerations: '[{"key":"CriticalAddonsOnly", "operator":"Exists"}]'
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spec:
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terminationGracePeriodSeconds: 30
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serviceAccountName: default
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dnsPolicy: Default
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containers:
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- name: "coredns"
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image: "coredns/coredns:1.10.1"
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imagePullPolicy: IfNotPresent
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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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resources:
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limits:
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cpu: 100m
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memory: 128Mi
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requests:
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cpu: 100m
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memory: 128Mi
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ports:
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- { "containerPort": 53, "name": "udp-53", "protocol": "UDP" }
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- { "containerPort": 53, "name": "tcp-53", "protocol": "TCP" }
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- { "containerPort": 9153, "name": "tcp-9153", "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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periodSeconds: 10
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timeoutSeconds: 5
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successThreshold: 1
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failureThreshold: 5
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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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initialDelaySeconds: 30
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periodSeconds: 10
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timeoutSeconds: 5
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successThreshold: 1
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failureThreshold: 5
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securityContext:
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capabilities:
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add:
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- NET_BIND_SERVICE
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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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