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Kelsey Hightower
192
deployments/kube-dns.yaml
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192
deployments/kube-dns.yaml
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: kube-dns
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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: kube-dns
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namespace: kube-system
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labels:
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addonmanager.kubernetes.io/mode: EnsureExists
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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/cluster-service: "true"
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kubernetes.io/name: "KubeDNS"
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spec:
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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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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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selector:
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k8s-app: kube-dns
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sessionAffinity: None
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type: ClusterIP
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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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labels:
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k8s-app: kube-dns
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kubernetes.io/cluster-service: "true"
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name: kube-dns
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namespace: kube-system
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spec:
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replicas: 2
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selector:
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matchLabels:
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k8s-app: kube-dns
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strategy:
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rollingUpdate:
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maxSurge: 10%
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maxUnavailable: 0
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type: RollingUpdate
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template:
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metadata:
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annotations:
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scheduler.alpha.kubernetes.io/critical-pod: ""
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creationTimestamp: null
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labels:
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k8s-app: kube-dns
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spec:
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containers:
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- name: kubedns
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image: gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.4
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env:
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- name: PROMETHEUS_PORT
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value: "10055"
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args:
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- --domain=cluster.local.
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- --dns-port=10053
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- --config-dir=/kube-dns-config
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- --v=2
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livenessProbe:
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failureThreshold: 5
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httpGet:
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path: /healthcheck/kubedns
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port: 10054
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scheme: HTTP
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initialDelaySeconds: 60
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periodSeconds: 10
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successThreshold: 1
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timeoutSeconds: 5
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ports:
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- name: dns-local
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containerPort: 10053
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protocol: UDP
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- name: dns-tcp-local
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containerPort: 10053
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protocol: TCP
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- name: metrics
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containerPort: 10055
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protocol: TCP
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readinessProbe:
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failureThreshold: 3
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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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initialDelaySeconds: 3
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periodSeconds: 10
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successThreshold: 1
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timeoutSeconds: 5
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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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volumeMounts:
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- name: kube-dns-config
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mountPath: /kube-dns-config
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- name: dnsmasq
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image: gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.4
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args:
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- -v=2
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- -logtostderr
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- -configDir=/etc/k8s/dns/dnsmasq-nanny
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- -restartDnsmasq=true
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- --
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- -k
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- --cache-size=1000
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- --log-facility=-
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- --server=/cluster.local/127.0.0.1#10053
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- --server=/in-addr.arpa/127.0.0.1#10053
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- --server=/ip6.arpa/127.0.0.1#10053
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livenessProbe:
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failureThreshold: 5
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httpGet:
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path: /healthcheck/dnsmasq
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port: 10054
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scheme: HTTP
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initialDelaySeconds: 60
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periodSeconds: 10
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successThreshold: 1
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timeoutSeconds: 5
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ports:
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- name: dns
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containerPort: 53
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protocol: UDP
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- name: dns-tcp
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containerPort: 53
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protocol: TCP
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resources:
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requests:
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cpu: 150m
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memory: 20Mi
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volumeMounts:
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- name: kube-dns-config
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mountPath: /etc/k8s/dns/dnsmasq-nanny
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- name: sidecar
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image: gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.4
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args:
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- --v=2
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- --logtostderr
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- --probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.cluster.local,5,A
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- --probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.cluster.local,5,A
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livenessProbe:
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failureThreshold: 5
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httpGet:
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path: /metrics
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port: 10054
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scheme: HTTP
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initialDelaySeconds: 60
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periodSeconds: 10
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successThreshold: 1
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timeoutSeconds: 5
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ports:
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- name: metrics
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containerPort: 10054
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protocol: TCP
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resources:
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requests:
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cpu: 10m
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memory: 20Mi
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dnsPolicy: Default
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restartPolicy: Always
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serviceAccount: kube-dns
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serviceAccountName: kube-dns
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terminationGracePeriodSeconds: 30
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tolerations:
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- key: CriticalAddonsOnly
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operator: Exists
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volumes:
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- name: kube-dns-config
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configMap:
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defaultMode: 420
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name: kube-dns
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optional: true
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@@ -1,165 +0,0 @@
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# Copyright 2016 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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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
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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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spec:
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# replicas: not specified here:
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# 1. In order to make Addon Manager do not reconcile this replicas parameter.
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# 2. Default is 1.
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# 3. Will be tuned in real time if DNS horizontal auto-scaling is turned on.
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strategy:
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rollingUpdate:
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maxSurge: 10%
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maxUnavailable: 0
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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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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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containers:
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- name: kubedns
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image: gcr.io/google_containers/kubedns-amd64:1.9
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resources:
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# TODO: Set memory limits when we've profiled the container for 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 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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- --domain=cluster.local.
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- --dns-port=10053
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- --config-map=kube-dns
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# This should be set to v=2 only after the new image (cut from 1.5) has
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# been released, otherwise we will flood the logs.
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- --v=0
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env:
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- name: PROMETHEUS_PORT
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value: "10055"
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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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- containerPort: 10055
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name: metrics
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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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- --log-facility=-
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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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# see: https://github.com/kubernetes/kubernetes/issues/29055 for details
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resources:
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requests:
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cpu: 150m
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memory: 10Mi
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- name: dnsmasq-metrics
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image: gcr.io/google_containers/dnsmasq-metrics-amd64:1.0
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livenessProbe:
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httpGet:
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path: /metrics
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port: 10054
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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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- --v=2
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- --logtostderr
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ports:
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- containerPort: 10054
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name: metrics
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protocol: TCP
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resources:
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requests:
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memory: 10Mi
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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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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. The
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# limits are set higher than expected pending investigation on #29688.
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# The extra memory was stolen from the kubedns container to keep 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.cluster.local 127.0.0.1 >/dev/null
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- --url=/healthz-dnsmasq
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- --cmd=nslookup kubernetes.default.svc.cluster.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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