Kubernetes DNS Missing

我已经从下面的指南中设置了1个主节点和1个节点的集群。 CentOS手动安装

之后，我只是试图部署仪表板（或任何事情），我得到以下错误

kubectl get events 25m 1h 23 10.3.0.5 Node Warning MissingClusterDNS {kubelet 10.3.0.5} (events with common reason combined) 30m 1h 16 10.3.0.5 Node Warning MissingClusterDNS {kubelet 10.3.0.5} kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. pod: "kubernetes-dashboard-1975554030-cc9n1_kube-system(ebab5633-c9d1-11e6-a741-000d3af22f09)". Falling back to DNSDefault policy. 56m 56m 1 10.3.0.5 Node Warning MissingClusterDNS {kubelet 10.3.0.5} kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. pod: "busybox_default(9634cf12-c9d7-11e6-a741-000d3af22f09)". Falling back to DNSDefault policy. 26m 26m 2 10.3.0.5 Node Warning MissingClusterDNS {kubelet 10.3.0.5} kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. pod: "kubernetes-dashboard-1975554030-31rnp_kube-system(bdce120a-c9db-11e6-a741-000d3af22f09)". Falling back to DNSDefault policy. ... 

另外当试图去仪表板我得到这个

 curl http://localhost:8001/api/v1/proxy/namespaces/kube-system/services/kubernetes-dashboard { "kind": "Status", "apiVersion": "v1", "metadata": {}, "status": "Failure", "message": "no endpoints available for service \"kubernetes-dashboard\"", "reason": "ServiceUnavailable", "code": 503 } 

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 kubectl cluster-info Kubernetes master is running at http://localhost:8080 kubectl version Client Version: version.Info{Major:"1", Minor:"3", GitVersion:"v1.3.0", GitCommit:"86dc49aa137175378ac7fba7751c3d3e7f18e5fc", GitTreeState:"clean", BuildDate:"2016-12-15T16:57:18Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"} Server Version: version.Info{Major:"1", Minor:"3", GitVersion:"v1.3.0", GitCommit:"86dc49aa137175378ac7fba7751c3d3e7f18e5fc", GitTreeState:"clean", BuildDate:"2016-12-15T16:57:18Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"} kubectl get nodes NAME STATUS AGE 10.3.0.5 Ready 3h kubectl get services --all-namespaces NAMESPACE NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE default kubernetes 10.254.0.1 <none> 443/TCP 1h kube-system kubernetes-dashboard 10.254.155.149 <nodes> 80/TCP 31m kubectl get pods --all-namespaces NAMESPACE NAME READY STATUS RESTARTS AGE kube-system kubernetes-dashboard-1975554030-1ramq 0/1 CrashLoopBackOff 10 31m 

 apiVersion: v1 kind: ConfigMap metadata: name: coredns namespace: kube-system data: Corefile: | .:53 { log stdout health # Replace cluster.local with your cluster domain kubernetes cluster.local proxy . /etc/resolv.conf cache 30 } --- apiVersion: extensions/v1beta1 kind: Deployment metadata: name: coredns namespace: kube-system labels: k8s-app: coredns kubernetes.io/cluster-service: "true" kubernetes.io/name: "CoreDNS" spec: replicas: 1 selector: matchLabels: k8s-app: coredns template: metadata: labels: k8s-app: coredns annotations: scheduler.alpha.kubernetes.io/critical-pod: '' scheduler.alpha.kubernetes.io/tolerations: '[{"key":"CriticalAddonsOnly", "operator":"Exists"}]' spec: containers: - name: coredns image: rothgar/coredns:004 imagePullPolicy: Always args: [ "-conf", "/etc/coredns/Corefile" ] volumeMounts: - name: config-volume mountPath: /etc/coredns ports: - containerPort: 53 name: dns protocol: UDP - containerPort: 53 name: dns-tcp protocol: TCP livenessProbe: httpGet: path: /health port: 8080 scheme: HTTP initialDelaySeconds: 60 timeoutSeconds: 5 successThreshold: 1 failureThreshold: 5 dnsPolicy: Default volumes: - name: config-volume configMap: name: coredns items: - key: Corefile path: Corefile --- apiVersion: v1 kind: Service metadata: name: coredns namespace: kube-system labels: k8s-app: coredns kubernetes.io/cluster-service: "true" kubernetes.io/name: "CoreDNS" spec: selector: k8s-app: coredns # Replace with your cluster DNS IP clusterIP: 10.254.0.10 ports: - name: dns port: 53 protocol: UDP - name: dns-tcp port: 53 protocol: TCP