DashBoard
在kubernetes中完成的所有操作都是通过命令行工具kubectl完成的。其实，为了提供更丰富的用户体验，kubernetes还开发了一个基于web的用户界面（Dashboard）。用户可以使用Dashboard部署容器化的应用，还可以监控应用的状态，执行故障排查以及管理kubernetes中各种资源。
部署Dashboard
- 下载yaml，并运行Dashboard
下载yaml
$ wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml
修改kubernetes-dashboard的Service类型
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
type: NodePort # 新增
ports:
- port: 443
targetPort: 8443
nodePort: 30009 # 新增
selector:
k8s-app: kubernetes-dashboard
部署
$ kubectl create -f recommended.yaml
查看namespace下的kubernetes-dashboard下的资源
$ kubectl get pod,svc -n kubernetes-dashboard
NAME READY STATUS RESTARTS AGE
pod/dashboard-metrics-scraper-c79c65bb7-zwfvw 1/1 Running 0 111s
pod/kubernetes-dashboard-56484d4c5-z95z5 1/1 Running 0 111s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/dashboard-metrics-scraper ClusterIP 10.96.89.218 8000/TCP 111s
service/kubernetes-dashboard NodePort 10.104.178.171 443:30009/TCP 111s
- 创建访问账户，获取token
创建账号
$ kubectl create serviceaccount dashboard-admin -n kubernetes-dashboard
授权
$ kubectl create clusterrolebinding dashboard-admin-rb --clusterrole=cluster-admin --serviceaccount=kubernetes-dashboard:dashboard-admin
获取账号token
$ kubectl describe secrets dashboard-admin-token-4zkkb -n kubernetes-dashboard
Name: dashboard-admin-token-4zkkb
Namespace: kubernetes-dashboard
Labels:
Annotations: kubernetes.io/service-account.name: dashboard-admin
kubernetes.io/service-account.uid: 7053e38e-dc32-4b08-b29b-05c7f4d7a77e
Type: kubernetes.io/service-account-token
Data
====
token: eyJhbGciOiJSUzI1NiIsImtpZCI6IkFCSDJONDA4aVBsMXBzNXQ0aTROOXJqR3BRRmRIQmZIalA0RnhYZ1ZZSlUifQ.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.OfRIt6qGaCQlRajv5Jt4AEauN_T6kLT_fKv8PcAuVySSP8ZZLPPzYBhA8xdIiIMzM6TulzH_l1ujSBwSwN-3475WJCQM1Ugai4_krqSiipmbvWMvUUsFex7kdx2TDDDlSE1uNeecXJvbjC8iVbbM7iB01vRZ-USWZcgp2XxdhbRcZ-KihnwcUSHXwliM4ZpcbP643B1l9--gx8XA7pdK4nTeqhBTV5xMg7b8ddGg4KE92OtBpAWr48eXURRcYz0Z7f-vheViYyNJU2nEXR5BnGLgJYfbvPW-alY-Stfidxk2hdcLMiYWZglXvg4dsVKTmt_oUDcdYTq5ODm0DbkDtg
ca.crt: 1025 bytes
namespace: 20 bytes
- 通过浏览器访问Dashboard的UI
使用DashBoard
以Deployment为例演示DashBoard的使用
查看
选择指定的命名空间 dev，然后点击 Deployments，查看dev空间下的所有deployment
扩缩容
在 Deployment上点击 规模，然后指定 目标副本数量，点击确定
编辑
在 Deployment上点击 编辑，然后修改 yaml文件，点击确定
查看Pod
点击 Pods, 查看pods列表
操作Pod
选中某个Pod，可以对其执行日志（logs）、进入执行（exec）、编辑、删除操作
Dashboard提供了kubectl的绝大部分功能
Original: https://www.cnblogs.com/HOsystem/p/15948226.html
Author: HOsystem
Title: Kubernetes-DashBoard部署
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