【kubernetes系列之安装Dashboard】

沁溪源

发布于 2022-05-06 10:03:33

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发布于 2022-05-06 10:03:33

文章被收录于专栏：沁溪源沁溪源沁溪源

一、安装dashboard

注意：安装版本，可以前往GitHub上查询稳定发行版以及与kubernetes兼容；小编安装的最新版本V2.5.0,因为小编的kubernetes版本是V1.23.4;

方法一：命令：kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/recommended.yaml

[root@VM-4-8-centos kubernetes]# kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/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

方案二：如果远程连接超时无法安装，可以浏览器连接文件内容https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/recommended.yaml拷贝到服务器上；

1、新建dashboard.yaml文件，目录自定义
2、将文件内容粘贴到该文件中

再次执行以下命令安装

kubectl apply -f dashboard.yaml

二、集群网络模式

将type: ClusterIP改成NodePort,便于通过Node端口访问命令kubectl edit svc kubernetes-dashboard -n kubernetes-dashboard 其中edit 和vim编辑模式一样 1、输入 /type查找关键字 2、将ClusterIP改成NodePort,保存退出；

三、查看 Dashboard 暴露外网端口

命令：kubectl get svc -A | grep kubernetes-dashboard

[root@VM-4-8-centos ~]# kubectl get svc -A | grep kubernetes-dashboard
kube-system            kubernetes-dashboard        NodePort    10.96.105.127   <none>        443:30987/TCP            5h12m
kubernetes-dashboard   dashboard-metrics-scraper   ClusterIP   10.96.120.46    <none>        8000/TCP                 59m
kubernetes-dashboard   kubernetes-dashboard        NodePort    10.96.62.77     <none>        443:30412/TCP            59m

四、访问dashboard

服务器上部署dashboard，防火墙或者安全组要开放相关端口，例如小编需要释放30412端口；浏览器输入https://服务器公网IP:30412进入登录页面；

五、创建账户，生成token

1、新建vim dashboard-account.yaml 文件位置建议统一放在kubernetes目录下，方便后期自己管理；
2、粘贴以下内容，新建dashboard账户，并授权

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

主要内容是创建admin-user账户，并授予集群管理权限；

3、执行文件命令kubectl apply -y dashboard-account.yaml

4、获取账户token 命令kubectl -n kubernetes-dashboard get secret $(kubectl -n kubernetes-dashboard get sa/admin-user -o jsonpath="{.secrets[0].name}") -o go-template="{{.data.token | base64decode}}"