153 lines
4.2 KiB
YAML
153 lines
4.2 KiB
YAML
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/cluster-service: "true"
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kubernetes.io/name: "KubeDNS"
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spec:
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selector:
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k8s-app: kube-dns
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clusterIP: 10.32.0.10
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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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---
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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: kube-dns-v20
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namespace: kube-system
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labels:
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k8s-app: kube-dns
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version: v20
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kubernetes.io/cluster-service: "true"
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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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version: v20
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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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version: v20
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kubernetes.io/cluster-service: "true"
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annotations:
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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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volumes:
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- name: kubeconfig
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hostPath:
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path: /etc/kubernetes/kubeconfig.yaml
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containers:
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- name: kubedns
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image: gcr.io/google_containers/kubedns-amd64:1.8
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resources:
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# TODO: Set memory limits when we've profiled the container for
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# large
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# clusters, then set request = limit to keep this container in
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# guaranteed class. Currently, this container falls into the
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# "burstable" category so the kubelet doesn't backoff from
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# restarting it.
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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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livenessProbe:
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httpGet:
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path: /healthz-kubedns
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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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readinessProbe:
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httpGet:
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path: /readiness
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port: 8081
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scheme: HTTP
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# we poll on pod startup for the Kubernetes master service and
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# only setup the /readiness HTTP server once that's available.
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initialDelaySeconds: 3
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timeoutSeconds: 5
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args:
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# command = "/kube-dns"
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- --domain=kubernetes.local
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- --dns-port=10053
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- --kubecfg-file=/etc/kubernetes/kubeconfig.yaml
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volumeMounts:
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- mountPath: /etc/kubernetes/kubeconfig.yaml
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name: kubeconfig
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readOnly: true
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ports:
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- containerPort: 10053
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name: dns-local
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protocol: UDP
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- containerPort: 10053
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name: dns-tcp-local
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protocol: TCP
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- name: dnsmasq
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image: gcr.io/google_containers/kube-dnsmasq-amd64:1.4
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livenessProbe:
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httpGet:
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path: /healthz-dnsmasq
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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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args:
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- --cache-size=1000
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- --no-resolv
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- --server=127.0.0.1#10053
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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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- name: healthz
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image: gcr.io/google_containers/exechealthz-amd64:1.2
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resources:
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# keep request = limit to keep this container in guaranteed class
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limits:
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memory: 50Mi
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requests:
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cpu: 10m
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# Note that this container shouldn't really need 50Mi of memory.
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# The
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# limits are set higher than expected pending investigation on
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# #29688.
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# The extra memory was stolen from the kubedns container to keep
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# the
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# net memory requested by the pod constant.
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memory: 50Mi
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args:
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- --cmd=nslookup kubernetes.default.svc.kubernetes.local 127.0.0.1 >/dev/null
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- --url=/healthz-dnsmasq
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- --cmd=nslookup kubernetes.default.svc.kubernetes.local 127.0.0.1:10053 >/dev/null
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- --url=/healthz-kubedns
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- --port=8080
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- --quiet
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ports:
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- containerPort: 8080
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protocol: TCP
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dnsPolicy: Default # Don't use cluster DNS.
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