Kubernetes 1.20.x部署dashboard

done

info

Kubernetes 版本： 1.20.0 Dashboard 版本 ： v2.3.1

Dashboard v2.3.1+0.g8d9f8e76c Kubernetes 集群的通用 Web UI

检查dashboard版本与kubernetes版本兼容性： https://github.com/kubernetes/dashboard/releases

部署Dashboard

官方教程 先下载 或者 直接浏览器cp回来 

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.3.1/aio/deploy/recommended.yaml

kubectl apply -f recommended.yaml




root@k8s-master:~# vi recommended.yaml
root@k8s-master:~# kubectl apply -f recommended.yaml 
namespace/kubernetes-dashboard created
serviceaccount/kubernetes-dashboard created
service/kubernetes-dashboard created
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-csrf created
secret/kubernetes-dashboard-key-holder created
configmap/kubernetes-dashboard-settings created
role.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/dashboard-metrics-scraper created
deployment.apps/dashboard-metrics-scraper created

查看dashboard运行状态

root@k8s-master:~# kubectl get pod -n kubernetes-dashboard
NAME                                         READY   STATUS    RESTARTS   AGE
dashboard-metrics-scraper-79c5968bdc-bb6td   1/1     Running   0          85s
kubernetes-dashboard-658485d5c7-l2d5b        1/1     Running   0          85s


root@k8s-master:~# kubectl get svc -n kubernetes-dashboard
NAME                        TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE
dashboard-metrics-scraper   ClusterIP   10.96.56.143    <none>        8000/TCP   2m33s
kubernetes-dashboard        ClusterIP   10.96.115.118   <none>        443/TCP    2m34s

修改Dashboard

通过NodePort方式暴露端口，这里指定30001，可自定义：

kubectl patch svc kubernetes-dashboard \
        -n kubernetes-dashboard \
        -p '{"spec":{"type":"NodePort","ports":[{"port":443,"targetPort":8443,"nodePort":30001}]}}'

登录Dashboard

浏览器访问dashboard：
注意  要先 登录用户后才能登录 先不要急 login哦
https://<NODE_IP>:30001

master ip or  node1  node2 ip 
https://192.168.88.70:30001/

选择token方式

创建dashboard-adminuser.yaml：

cat > dashboard-adminuser.yaml << EOF
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kubernetes-dashboard  
EOF



创建登录用户

kubectl apply -f dashboard-adminuser.yaml

说明：上面创建了一个叫admin-user的服务账号，并放在kubernetes-dashboard 命名空间下，并将cluster-admin角色绑定到admin-user账户，这样admin-user账户就有了管理员的权限。默认情况下，kubeadm创建集群时已经创建了cluster-admin角色，我们直接绑定即可。

查看admin-user账户的token
kubectl -n kubernetes-dashboard describe secret $(kubectl -n kubernetes-dashboard get secret | grep admin-user | awk '{print $1}')


Name:         admin-user-token-njt97
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: admin-user
              kubernetes.io/service-account.uid: 0ab89938-bcd6-4577-a565-a562eb1a1801

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1066 bytes
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6Im9KS1I0MHFMclQ5TGgtVC10RjFTbHAyRkpNWVV4c0tyRGhUWHB1RzliemsifQ.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.BVOMj_yz5TZAp4z5IEHcz-lhubObVJX0gZvqgwAjNVdAKkHqdrSac0910XtgM0Sh_ueMQwhIM-P19b5JQU-3wAX2mYP-KwGdlnH_kyLkAgeePwds5l-BU0fCA-UQxC0iugyqJ76sERfrnaVRjXwpCFGZ5ImBCSX07OLpinQtg8GDDYfADzl2gNZoQGZt_Z8tZY1O2NorwBY7viJ5RLv4-jy-YSSCSHhVr4N3Fp7EbEsBm9pTmpB0nWNJv1iigqF2Me9ZnrlUfpamiHlgiIka5gl8BD3KJsYgF8qF48KICZE1zqf1AbAH5-du0zVEu6fdcGhVWCEJzkwEM_1Se4kz8w



选择第一项 Token 

reference

Kubernetes 1.20.0部署dashboard

kubernetes系列(十七) - 通过helm安装dashboard详细教程