官网 https://github.com/kubernetes/dashboard
下载yaml文件

wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.3/aio/deploy/recommended.yaml

然后部署该文件

kubectl apply -f recommended.yaml

至此部署完毕了，但是还不能在集群外访问到，

[root@k8s-master ~]# kubectl -n kubernetes-dashboard get svc
NAME                        TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
dashboard-metrics-scraper   ClusterIP   10.106.154.29   <none>        8000/TCP        49m
kubernetes-dashboard        ClusterIP    10.96.197.126   <none>        443/TCP   49m

修改service类型，把ClusterIP改为NodePort，集群外可以访问

[root@k8s-master ~]# kubectl -n kubernetes-dashboard edit svc kubernetes-dashboard 

spec:
  clusterIP: 10.96.197.126
  externalTrafficPolicy: Cluster
  ports:
  - nodePort: 32406
    port: 443
    protocol: TCP
    targetPort: 8443
  selector:
    k8s-app: kubernetes-dashboard
  sessionAffinity: None
  type: NodePort ##改为NodePort
status:
  loadBalancer: {}

查看service端口

[root@k8s-master ~]# kubectl -n kubernetes-dashboard get svc
NAME                        TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
dashboard-metrics-scraper   ClusterIP   10.106.154.29   <none>        8000/TCP        52m
kubernetes-dashboard        NodePort    10.96.197.126   <none>        443:32406/TCP   52m

浏览器输入
https://:
可以看到展示页面

需要token，别担心，这个token已经在yaml文件中创建好了

[root@k8s-master ~]# kubectl -n kubernetes-dashboard get secrets 
NAME                               TYPE                                  DATA   AGE
default-token-rrrj9                kubernetes.io/service-account-token   3      59m
kubernetes-dashboard-certs         Opaque                                0      59m
kubernetes-dashboard-csrf          Opaque                                1      59m
kubernetes-dashboard-key-holder    Opaque                                2      59m
kubernetes-dashboard-token-km4vm   kubernetes.io/service-account-token   3      59m

最后一个就是token，我们查看一下

[root@k8s-master ~]# kubectl -n kubernetes-dashboard describe secrets kubernetes-dashboard-token-km4vm 
Name:         kubernetes-dashboard-token-km4vm
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: kubernetes-dashboard
              kubernetes.io/service-account.uid: f9ef74ad-f861-437e-87cf-c8598434dc14

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1025 bytes
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IjA3TjZVTldZSDdhVGxqUUd3YmEtVzZHS2VQT1lScUlNN3ZDODBubnhITFUifQ.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.aVbc0nS3ENB-hiVYUngTz5w6bXV2oU7h82WvM_mk1GGlKOc9fR2sJjGEySv8b60MB7-CPUCyrk1qJXqxiRX9TjK_n1gaEJ2GnevudZ996jD5nuBNIo_ZL9F2rsjEOijZUQd23JmLzptM-UzJ-vTZxIzsuVind1zoXypJmQaVpFqsahP0QHpo78yS7W3zVRxS8ZHmubaLgMIU0edLqB_tUQ_n7UgpKQD3BPJsoGieW4q4fyJ6w5k47GPqyk2Lc2G2gu7-c8gC83ja3QFBHfs5kOz2HJYNsifWOwRdDqFobah-JwgrzCytFIpD5GPthZV1FcdMob3Kca6TsB8bS7aIHA

好的 得到token了
输入登陆框看看。
发现什么都没有，会报错

configmaps is forbidden: User "system:serviceaccount:kubernetes-dashboard:kubernetes-dashboard" cannot list resource "configmaps" in API group "" at the cluster scope

这明显就是权限的问题，修改下权限就行了,找到yaml文件中新建的ClusterRole，

[root@k8s-master ~]# kubectl get clusterrole|grep kubernetes-dashboard 
kubernetes-dashboard                                                   2020-07-29T01:41:22Z
编辑ClusterRole
[root@k8s-master ~]# kubectl edit clusterrole kubernetes-dashboard

把原来的rules替换为

rules:
  - apiGroups: ["metrics.k8s.io"]
    resources: ["pods", "nodes","namespaces","secrets","persistentvolumeclaims"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["","apps"]
    resources: ["pods", "nodes","namespaces","secrets","persistentvolumeclaims","replicasets","deployments","events"]
    verbs: ["get", "list", "watch"]

然后刷新页面，

大功告成！