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[经验分享] 手动搭建Kubernetes1.8高可用集群(7)dns-BravePro

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发表于 2018-9-16 06:12:44 | 显示全部楼层 |阅读模式
---  apiVersion: extensions/v1beta1
  kind: Deployment
  metadata:
  name: kube-dns
  namespace: "kube-system"
  labels:
  k8s-app: kube-dns
  kubernetes.io/cluster-service: "true"
  addonmanager.kubernetes.io/mode: Reconcile
  spec:
  # replicas: not specified here:
  # 1. In order to make Addon Manager do not reconcile this replicas parameter.
  # 2. Default is 1.
  # 3. Will be tuned in real time if DNS horizontal auto-scaling is turned on.
  strategy:
  rollingUpdate:
  maxSurge: 10%
  maxUnavailable: 0
  selector:
  matchLabels:
  k8s-app: kube-dns
  template:
  metadata:
  labels:
  k8s-app: kube-dns
  annotations:
  scheduler.alpha.kubernetes.io/critical-pod: ''
  spec:
  tolerations:
  - key: "CriticalAddonsOnly"
  operator: "Exists"
  - effect: NoSchedule
  operator: Exists
  volumes:
  - name: kube-dns-config
  configMap:
  name: kube-dns
  optional: true
  containers:
  - name: kubedns
  image: "gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.7"
  imagePullPolicy: IfNotPresent
  resources:
  # TODO: Set memory limits when we've profiled the container for large
  # clusters, then set request = limit to keep this container in

  # guaranteed>  # "burstable" category so the kubelet doesn't backoff from restarting it.
  limits:
  memory: 170Mi
  requests:
  cpu: 40m
  memory: 50Mi
  livenessProbe:
  httpGet:
  path: /healthcheck/kubedns
  port: 10054
  scheme: HTTP
  initialDelaySeconds: 60
  timeoutSeconds: 5
  successThreshold: 1
  failureThreshold: 5
  readinessProbe:
  httpGet:
  path: /readiness
  port: 8081
  scheme: HTTP
  # we poll on pod startup for the Kubernetes master service and
  # only setup the /readiness HTTP server once that's available.
  initialDelaySeconds: 3
  timeoutSeconds: 5
  args:
  - --domain=cluster.local.
  - --dns-port=10053
  - --config-dir=/kube-dns-config
  - --v=2
  env:
  - name: PROMETHEUS_PORT
  value: "10055"
  ports:
  - containerPort: 10053
  name: dns-local
  protocol: UDP
  - containerPort: 10053
  name: dns-tcp-local
  protocol: TCP
  - containerPort: 10055
  name: metrics
  protocol: TCP
  volumeMounts:
  - name: kube-dns-config
  mountPath: /kube-dns-config
  - name: dnsmasq
  image: "gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.7"
  imagePullPolicy: IfNotPresent
  livenessProbe:
  httpGet:
  path: /healthcheck/dnsmasq
  port: 10054
  scheme: HTTP
  initialDelaySeconds: 60
  timeoutSeconds: 5
  successThreshold: 1
  failureThreshold: 5
  args:
  - -v=2
  - -logtostderr
  - -configDir=/etc/k8s/dns/dnsmasq-nanny
  - -restartDnsmasq=true
  - --
  - -k
  - --cache-size=1000
  - --log-facility=-
  - --server=/cluster.local/127.0.0.1#10053
  - --server=/in-addr.arpa/127.0.0.1#10053
  - --server=/ip6.arpa/127.0.0.1#10053
  ports:
  - containerPort: 53
  name: dns
  protocol: UDP
  - containerPort: 53
  name: dns-tcp
  protocol: TCP
  # see: https://github.com/kubernetes/kubernetes/issues/29055 for details
  resources:
  requests:
  cpu: 150m
  memory: 20Mi
  volumeMounts:
  - name: kube-dns-config
  mountPath: /etc/k8s/dns/dnsmasq-nanny
  - name: sidecar
  image: "gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.7"
  livenessProbe:
  httpGet:
  path: /metrics
  port: 10054
  scheme: HTTP
  initialDelaySeconds: 60
  timeoutSeconds: 5
  successThreshold: 1
  failureThreshold: 5
  args:
  - --v=2
  - --logtostderr
  - --probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.cluster.local,5,A
  - --probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.cluster.local,5,A
  ports:
  - containerPort: 10054
  name: metrics
  protocol: TCP
  resources:
  requests:
  memory: 20Mi
  cpu: 10m
  dnsPolicy: Default  # Don't use cluster DNS.
  serviceAccountName: kube-dns



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所有资源均系网友上传或者通过网络收集,我们仅提供一个展示、介绍、观摩学习的平台,我们不对其承担任何法律责任,如涉及侵犯版权等问题,请您及时通知我们,我们将立即处理,联系人Email:kefu@iyunv.com,QQ:1061981298 本贴地址:https://www.yunweiku.com/thread-584048-1-1.html 上篇帖子: 手动搭建Kubernetes1.8高可用集群(6)calico-BravePro 下篇帖子: 应用开发者必须了解的Kubernetes网络二三事
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