3 安装Dashboard

Dashboard并不是必须的，它可以方便我们查看和操作，建议还是安装。将文件下载到本地，然后执行以下命令即可：

// 下载
wget https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recommended/kubernetes-dashboard.yaml

// 执行
kubectl apply -f kubernetes-dashboard.yaml
结果如下，表示ok
secret/kubernetes-dashboard-certs created
serviceaccount/kubernetes-dashboard created
role.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
deployment.apps/kubernetes-dashboard created
service/kubernetes-dashboard created

服务安装完毕后可以查看部署的容器与服务：
出现 kubernetes-dashboard 1/1 则表示正常

➜  kubernetes  kubectl get deployments --namespace kube-system
NAME                   READY   UP-TO-DATE   AVAILABLE   AGE
coredns                2/2     2            2           4d3h
kubernetes-dashboard   1/1     1            1           3d8h
➜  kubernetes  kubectl get services --namespace kube-system
NAME                   TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)                  AGE
kube-dns               ClusterIP   10.96.0.10      <none>        53/UDP,53/TCP,9153/TCP   4d3h
kubernetes-dashboard   ClusterIP   10.96.229.197   <none>        443/TCP                  4d2h

启动：

$ kubectl proxy

建议使用下面命令启动，不然会一直占着终端：

$ nohup kubectl proxy >/dev/null &

启动后可登陆访问：http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

获取Token

然后并没有跳过的按钮，所以必须通过Kubeconfig或者Token的方式。

我这里是通过Token，那我们怎么知道Token的值是多少呢？

➜  kubernetes  kubectl get secret -n=kube-system
NAME                                             TYPE                                  DATA   AGE
...
default-token-sznp4                              kubernetes.io/service-account-token   3      4d3h
...
# 这里只列出default-token-sznp4

获取Token值，然后把得到的值输入进去就可以了。

➜  kubernetes  kubectl describe secret -n=kube-system default-token-sznp4
Name:         default-token-sznp4
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: default
              kubernetes.io/service-account.uid: 064afefb-ebf6-11e9-ac8c-025000000001

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1025 bytes
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJkZWZhdWx0LXRva2VuLXN6bnA0Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQubmFtZSI6ImRlZmF1bHQiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC51aWQiOiIwNjRhZmVmYi1lYmY2LTExZTktYWM4Yy0wMjUwMDAwMDAwMDEiLCJzdWIiOiJzeXN0ZW06c2VydmljZWFjY291bnQ6a3ViZS1zeXN0ZW06ZGVmYXVsdCJ9.u5HTqt7A_4H_0f9ny-AgfmWNo7TSWZsRpjXot1iN8G6oOnt4uDQiS_kiUduwtqqeYC2hjZ2yKPt0NNML9Op1RSAEuTkXiRvJxnCX8GjQeqCD4lzXeqqQ9mTxCVlGijJLaP5VJ2qQtLM0Gwt9eJCYxugGqqHqys7QXdPzcH3WESno0tXNt25klC5ZXNFSeyE-AqLpP3SjmW7W6IBHx89uY28SXmdvTjnCuZyaBlpkgOensdMS7-BpycTzq63NIcp5TR7tM3AdHjsUlSJ2D9YqW_xzMcEDncmjKpbVJ6W9w494L-Z0dOjHkI7gaQSE2Bwi6AqCaGEWKTgMCSWmIBfkrg

注意： 这个是dashboard旧版本v1 的配置方案，对于k8s v1.16以上不好用,需要用到dashboard v2了。