Kubernetes 仪表板不工作，“已经存在”和“找不到请求的资源（获取服务堆）”

Question

我是 Kubernetes 的新手

目标是让 Kubernetes 集群仪表板工作

当我kubectl create -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml --validate=false按照这里的描述做

我得到：

Error from server (AlreadyExists): error when creating "https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml": secrets "kubernetes-dashboard-certs" already exists
Error from server (AlreadyExists): error when creating "https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml": serviceaccounts "kubernetes-dashboard" already exists
Error from server (AlreadyExists): error when creating "https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml": roles.rbac.authorization.k8s.io "kubernetes-dashboard-minimal" already exists
Error from server (AlreadyExists): error when creating "https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml": rolebindings.rbac.authorization.k8s.io "kubernetes-dashboard-minimal" already exists
Error from server (AlreadyExists): error when creating "https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml": deployments.extensions "kubernetes-dashboard" already exists
Error from server (AlreadyExists): error when creating "https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml": services "kubernetes-dashboard" already exists

当我运行时kubectl get services --namespace kube-system，我得到：

NAME                   CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
kube-dns               10.233.0.3      <none>        53/UDP,53/TCP   10d
kubernetes-dashboard   10.233.28.132   <none>        80/TCP          9d

当我尝试访问仪表板 kubernetes 集群时，我得到 Connection refused

kubectl logs --namespace=kube-system kubernetes-dashboard-4167803980-1dz53 输出：

2017/09/27 10:54:11 Using in-cluster config to connect to apiserver
2017/09/27 10:54:11 Using service account token for csrf signing
2017/09/27 10:54:11 No request provided. Skipping authorization
2017/09/27 10:54:11 Starting overwatch
2017/09/27 10:54:11 Successful initial request to the apiserver, version: v1.7.3+coreos.0
2017/09/27 10:54:11 New synchronizer has been registered: kubernetes-dashboard-key-holder-kube-system. Starting
2017/09/27 10:54:11 Starting secret synchronizer for kubernetes-dashboard-key-holder in namespace kube-system
2017/09/27 10:54:11 Initializing secret synchronizer synchronously using secret kubernetes-dashboard-key-holder from namespace kube-system
2017/09/27 10:54:11 Initializing JWE encryption key from synchronized object
2017/09/27 10:54:11 Creating in-cluster Heapster client
2017/09/27 10:54:11 Serving securely on HTTPS port: 8443
2017/09/27 10:54:11 Metric client health check failed: the server could not find the requested resource (get services heapster). Retrying in 30 seconds.

我怎样才能让仪表板工作？感谢你的帮助。

Answer 1

首先删除所有内容：

kubectl delete -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

然后重新创建仪表板：

kubectl create -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

启动代理：

kubectl proxy

然后打开它：

http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

您也可以使用 k8s api 地址而不是 localhost。请注意，在一些新的仪表板版本中ui，例如：短地址k8s.api.example.com/ui不再有效，您需要明确使用长而丑陋的地址。