k8s—部署dashboard可视化界面

1、下载recommended.yaml配置文件

1）根据自己安装的kubernetes版本安装适配的dashboard

我安装的kubernetes是1.24.2版本的，需要安装v:2.6.1版本的dashboard

2）下载地址：https://raw.githubusercontent.com/kubernetes/dashboard/v2.6.1/aio/deploy/recommended.yaml

3）可以直接用wget方式下载，也可以手动下载上传到服务器中；

2、修改配置文件

1）将名称空间改为kube-system（改不改都可，只要自己知道在哪个命名空间即可）

root@kub-k8s-master \~\] # sed -i '/namespace/ s/kubernetes-dashboard/kube-system/g' recommended.yaml

2）修改Service的类型

kind: Service

apiVersion: v1

metadata:

labels:

k8s-app: kubernetes-dashboard

name: kubernetes-dashboard

namespace: kubernetes-dashboard

spec:

type: NodePort #修改类型为NodePort，大概在40行

ports:

• port: 443

nodePort: 31260 #添加nodePort端口

targetPort: 8443

selector:

k8s-app: kubernetes-dashboard

3、拉取镜像

1）查看要拉取的镜像

root@k8s-master \~\]# cat recommended.yaml \|grep image image: kubernetesui/dashboard:v2.6.1 imagePullPolicy: Always #提前拉取镜像需要改成ifNotPresent，不会重复拉取 image: kubernetesui/metrics-scraper:v1.0.8

2）提前拉取镜像，可节省时间

4、应用配置文件并创建dashboard

1）应用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

2）查看pod的状态确保dashboard已经部署成功

root@k8s-master \~\]# kubectl get pod -n kubernetes-dashboard NAME READY STATUS RESTARTS AGE dashboard-metrics-scraper-7c5f6dcf49-gsvxr 1/1 Running 0 33s kubernetes-dashboard-78fdc69869-hqzzk 1/1 Running 0 33s

5、访问dashboard

1）查看service，访问端口为31260

root@k8s-master \~\]# kubectl get service -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE dashboard-metrics-scraper ClusterIP 10.107.136.107 \ 8000/TCP 61m kubernetes-dashboard NodePort 10.102.22.176 \ 443:31260/TCP 61m

2）浏览器输入https://masterIP:端口号访问即可；我的是https://192.168.22.139:31260，然后选择token登录

6、编写 dashboard-adminuser.yaml文件并应用

root@k8s-master \~\]# vim dashboard-adminuser.yaml \[root@k8s-master \~\]# cat dashboard-adminuser.yaml apiVersion: v1 kind: ServiceAccount metadata: name: admin-user namespace: kube-system --- 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: kube-system \[root@k8s-master \~\]# kubectl apply -f dashboard-adminuser.yaml Warning: resource serviceaccounts/admin-user is missing the kubectl.kubernetes.io/last-applied-configuration annotation which is required by kubectl apply. kubectl apply should only be used on resources created declaratively by either kubectl create --save-config or kubectl apply. The missing annotation will be patched automatically. serviceaccount/admin-user configured Warning: resource clusterrolebindings/admin-user is missing the kubectl.kubernetes.io/last-applied-configuration annotation which is required by kubectl apply. kubectl apply should only be used on resources created declaratively by either kubectl create --save-config or kubectl apply. The missing annotation will be patched automatically. clusterrolebinding.rbac.authorization.k8s.io/admin-user configured #我已经创建过一次了，所以是configured

7、获取token并登录

root@k8s-master \~\]# kubectl create token admin-user --namespace kube-system eyJhbGciOiJSUzI1NiIsImtpZCI6IldYTHM4VXdhclB0MWozZFNyS2xMc2VWVjZGNXdtVXNjNTUtLU1hZVlXSncifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNzIyNzU3MjU0LCJpYXQiOjE3MjI3NTM2NTQsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJhZG1pbi11c2VyIiwidWlkIjoiMzQzM2VhZGYtNDkzMi00ZjE3LTk3ZmMtZDdkYWIyZThiZTVmIn19LCJuYmYiOjE3MjI3NTM2NTQsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlLXN5c3RlbTphZG1pbi11c2VyIn0.nRpshRe0t06fW1QCMtvIvRMhCOe9UTWW-GW7rFNgxCq1G0G15VAk7KRn5dha0CY1x1IUoZJwfay7HQwyP3W4LCUyjcJTwjUQnl7tgeHA4I_NgF_Qw21WFT77tJGCAa6Z6rY9IfrfdkVuA_Rbci0hdzKpstzZSb_mV6mTxkU9UrMzu0krGKTkewdCvq9cO9H9tIkljFzEJ7a-y4BONneHUn9qY5eEEcvFSfM7eT1dPP43oUrTLdEAgx5NZaafHT88J-bhyFqQSvJfO4vktjCGqyw5k87xxtbKnh45QrVO_j6cvhJHIq_MO8gWNQE0z-URfi2BFZC-C8lz3Akx3szW5A