kubernetes（k8s）管理图形界面WebUI

　　一、k8s管理界面
　　这里主要列举以下3个： 官方的kubernetes-dashboard Rancher Kuboard 二、安装步骤1、前言
　　之前部署过dashboard v1.x的版本，后来dashboard升级了，按照之前的部署方式部署后，总是出现无法访问的现象，后面又去github找到最新版的dashboard 部署方式，特此记录 2、正式安装
　　step1：安装方式也是类似k8s pod创建，通过kubectl apply方式 $ kubectl apply -f  https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.3/aio/deploy/recommended.yaml
　　step2： 如果拉取不了，可以在hosts里配置这个 echo ＂151.101.108.133 raw.githubusercontent.com＂ >> /etc/hosts
　　注意： 选择版本时要注意，一定要下载与自己k8s的版本对应dashboard，不然web界面会报404。也就是要看看版本中的＂Compatibility＂
　　各版本见官方项目地址：
　　https://github.com/kubernetes/dashboard github.com/kubernetes/dashboard
　　step3:优化配置文件(修改相应的镜像配置以免国内无法下载)
　　我将此服务改为NodePort方式进行部署，方便后续进行测试，镜像地址也修改为阿里云仓库的地址，配置文件地址：
　　点击直达  github.com/pythonTaotao/kubernetes/tree/master/dashboard p.s.recommended.yaml文件需要修改2处recommended.yaml 中的镜像地址改成(一般官方默认的镜像下载不了)： registry.cn-hangzhou.aliyuncs.com/kubernetes_ns/dashboard:v2.0.3recommended.yaml 指定nodeport端口，方便主机上访问
　　具体如何修改参见此文：
　　https://www.cnblogs.com/caoxb/p/  www.cnblogs.com/caoxb/p/11244285.html
　　step4：Getting a Bearer Token(登录WEB页面是需要使用)kubectl describe secrets -n kubernetes-dashboard admin-user-token  | grep token | awk ＂NR==3{print $2}＂
　　step5：查看服务端口[root@master ~]# kubectl get svc -n kubernetes-dashboard NAME                        TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)         AGE dashboard-metrics-scraper   ClusterIP   10.100.164.29            8000/TCP        11h kubernetes-dashboard        NodePort    10.107.131.103           443:32136/TCP   11hstep6：登录验证
　　https://IP:Port
　　问题总结
　　kubernetes搭建dashboard报错warning configmaps is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list configmaps in the namespace ＂default＂ close warning persistentvolumeclaims is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list persistentvolumeclaims in the namespace ＂default＂ close warning secrets is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list secrets in the namespace ＂default＂ close warning services is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list services in the namespace ＂default＂ close warning ingresses.extensions is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list ingresses.extensions in the namespace ＂default＂ close warning daemonsets.apps is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list daemonsets.apps in the namespace ＂default＂ close warning pods is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list pods in the namespace ＂default＂ close warning events is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list events in the namespace ＂default＂ close warning deployments.apps is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list deployments.apps in the namespace ＂default＂ close warning replicasets.apps is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list replicasets.apps in the namespace ＂default＂ close warning jobs.batch is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list jobs.batch in the namespace ＂default＂ close warning cronjobs.batch is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list cronjobs.batch in the namespace ＂default＂ close warning replicationcontrollers is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list replicationcontrollers in the namespace ＂default＂ close warning statefulsets.apps is forbidden: User ＂system:serviceaccount:kube-system:kubernetes-dashboard＂ cannot list statefulsets.apps in the namespace ＂default＂
　　解决办法安装dashboard-adminuser.yamlkubectl apply -f https://hub.fastgit.org/pythonTaotao/kubernetes/blob/master/dashboard/dashboard-adminuser.yaml