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K8S学习全记录(10)—— Kubernetes DashBoard CentOS
0
kubernetes
小笨蛋
发布于:2021年08月15日
更新于:2021年09月20日
189
#custom-toc-container
# 10. DashBoard 之前在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。 ## 10.1 部署Dashboard 1) 下载yaml,并运行Dashboard ```shell # 下载yaml [root@k8s-master01 ~]# 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 [root@k8s-master01 ~]# kubectl create -f recommended.yaml # 查看namespace下的kubernetes-dashboard下的资源 [root@k8s-master01 ~]# 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 ``` 2)创建访问账户,获取token ```shell # 创建账号 [root@k8s-master01-1 ~]# kubectl create serviceaccount dashboard-admin -n kubernetes-dashboard # 授权 [root@k8s-master01-1 ~]# kubectl create clusterrolebinding dashboard-admin-rb --clusterrole=cluster-admin --serviceaccount=kubernetes-dashboard:dashboard-admin # 获取账号token [root@k8s-master01 ~]# kubectl get secrets -n kubernetes-dashboard | grep dashboard-admin dashboard-admin-token-xbqhh kubernetes.io/service-account-token 3 2m35s [root@k8s-master01 ~]# kubectl describe secrets dashboard-admin-token-xbqhh -n kubernetes-dashboard Name: dashboard-admin-token-xbqhh Namespace: kubernetes-dashboard Labels:
Annotations: kubernetes.io/service-account.name: dashboard-admin kubernetes.io/service-account.uid: 95d84d80-be7a-4d10-a2e0-68f90222d039 Type: kubernetes.io/service-account-token Data ==== namespace: 20 bytes token: eyJhbGciOiJSUzI1NiIsImtpZCI6ImJrYkF4bW5XcDhWcmNGUGJtek5NODFuSXl1aWptMmU2M3o4LTY5a2FKS2cifQ.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.NAl7e8ZfWWdDoPxkqzJzTB46sK9E8iuJYnUI9vnBaY3Jts7T1g1msjsBnbxzQSYgAG--cV0WYxjndzJY_UWCwaGPrQrt_GunxmOK9AUnzURqm55GR2RXIZtjsWVP2EBatsDgHRmuUbQvTFOvdJB4x3nXcYLN2opAaMqg3rnU2rr-A8zCrIuX_eca12wIp_QiuP3SF-tzpdLpsyRfegTJZl6YnSGyaVkC9id-cxZRb307qdCfXPfCHR_2rt5FVfxARgg_C0e3eFHaaYQO7CitxsnIoIXpOFNAR8aUrmopJyODQIPqBWUehb7FhlU1DCduHnIIXVC_UICZ-MKYewBDLw ca.crt: 1025 bytes ``` 3)通过浏览器访问Dashboard的UI 在登录页面上输入上面的token ![图片alt](/uploads/images/20210815/214533-dffa7b9b156a42428fe122cc69c045c1.png ''图片title'') 出现下面的页面代表成功 ![图片alt](/uploads/images/20210815/214551-e4a7ced4519741dcbe0f2106a93c8d6b.png ''图片title'') ## 10.2 使用DashBoard 本章节以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 ![图片alt](/uploads/images/20210815/214624-1e628a0dec074851a1f1beb028fc0b84.png ''图片title'') **扩缩容** 在`Deployment`上点击`规模`,然后指定`目标副本数量`,点击确定 ![图片alt](/uploads/images/20210815/214645-c2d25358295e40619547e085c63511d3.png ''图片title'') **编辑** 在`Deployment`上点击`编辑`,然后修改`yaml文件`,点击确定 ![图片alt](/uploads/images/20210815/214707-b0a406ec48d84a96b199615c6a400d7b.png ''图片title'') **查看Pod** 点击`Pods`, 查看pods列表 ![图片alt](/uploads/images/20210815/214724-664a19f3e2bf46a29f5e4b7cc0ff3861.png ''图片title'') **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 ![图片alt](/uploads/images/20210815/214747-c66594618c3e42ffa6c1d9bbc5a10160.png ''图片title'') > Dashboard提供了kubectl的绝大部分功能,这里不再一一演示
这里⇓感觉得写点什么,要不显得有点空,但还没想好写什么...
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