Kubernetes Dashboard的安装与配置

一 背景

通过kubeadm快速完成了kubernetes的安装，即可迅速地体验到kubernetes的强大功能。美中不足的是，只能通过命令来查看或操作，没有一个直观且简洁的Web UI来感受一下这种成功的喜悦。此外，国内的网络环境，也在某种程度上增加了一些门槛。面对如此种种，依然有办法体验kunernetes dashboard。

二 操作步骤

因为不清楚Pod会被调度到哪一个Node上，所以在每一个节点上执行以下脚本：

#!/bin/bashdocker pull registry.cn-qingdao.aliyuncs.com/wangxiaoke/kubernetes-dashboard-amd64:v1.10.0# docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kubernetes-dashboard-amd64:v1.10.0docker tag registry.cn-qingdao.aliyuncs.com/wangxiaoke/kubernetes-dashboard-amd64:v1.10.0 k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.0docker image rm registry.cn-qingdao.aliyuncs.com/wangxiaoke/kubernetes-dashboard-amd64:v1.10.0

在Master节点上执行：

[root@k8s-m ~]# curl -O kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.0/src/deploy/recommended/kubernetes-dashboard.yaml[root@k8s-m ~]# kubectl apply -f kubernetes-dashboard.yaml

查看pod是否创建成功:

[root@k8s-m ~]# ?kubectl get pods --namespace=kube-systemNAME ???????????????????????????????????READY ??STATUS ???RESTARTS ??AGEcoredns-576cbf47c7-xg4xm ???????????????1/1 ????Running ??1 ?????????72mcoredns-576cbf47c7-xq9mc ???????????????1/1 ????Running ??1 ?????????80metcd-k8s-m ?????????????????????????????1/1 ????Running ??2 ?????????79mkube-apiserver-k8s-m ???????????????????1/1 ????Running ??2 ?????????79mkube-controller-manager-k8s-m ??????????1/1 ????Running ??21 ????????80mkube-flannel-ds-amd64-9fzm7 ????????????1/1 ????Running ??1 ?????????72mkube-flannel-ds-amd64-nddqf ????????????1/1 ????Running ??2 ?????????72mkube-proxy-6js29 ???????????????????????1/1 ????Running ??2 ?????????80mkube-proxy-lp2v2 ???????????????????????1/1 ????Running ??2 ?????????72mkube-scheduler-k8s-m ???????????????????1/1 ????Running ??19 ????????80mkubernetes-dashboard-77fd78f978-ngkvb ??1/1 ????Running ??1 ?????????25m

修改service配置，找到type，将ClusterIP改成NodePort：

[root@k8s-m ~]# kubectl edit service ?kubernetes-dashboard --namespace=kube-system

查看暴露端口:

[root@k8s-m ~]# ?kubectl get service --namespace=kube-systemNAME ??????????????????TYPE ???????CLUSTER-IP ??????EXTERNAL-IP ??PORT(S) ????????AGEkube-dns ??????????????ClusterIP ??10.96.0.10 ??????<none> ???????53/UDP,53/TCP ??87mkubernetes-dashboard ??NodePort ???10.101.204.129 ??<none> ???????443:31269/TCP ??32m

创建kubernetes-dashboard用户:

kind: ClusterRoleBindingapiVersion: rbac.authorization.k8s.io/v1beta1metadata: ?name: admin ?annotations: ???rbac.authorization.kubernetes.io/autoupdate: "true"roleRef: ?kind: ClusterRole ?name: cluster-admin ?apiGroup: rbac.authorization.k8s.iosubjects:- kind: ServiceAccount ?name: admin ?namespace: kube-system---apiVersion: v1kind: ServiceAccountmetadata: ?name: admin ?namespace: kube-system ?labels: ???kubernetes.io/cluster-service: "true" ???addonmanager.kubernetes.io/mode: Reconcile

创建用户:

[root@k8s-m ~]# ?kubectl create -f admin-token.yaml 

获取登录token:

[root@k8s-m ~]# kubectl get secret -n kube-system |grep admin|awk ‘{print $1}‘admin-token-6tkxm[root@k8s-m ~]# kubectl describe secret admin-token-6tkxm -n kube-system|grep ‘^token‘|awk ‘{print $2}‘eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi10b2tlbi02dGt4bSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJhZG1pbiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6IjQ4MjcxNTE5LTFkODgtMTFlOS1iMGZkLTAwMTU1ZDc0ZWUyNyIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlLXN5c3RlbTphZG1pbiJ9.TpBGEd-7VXrYjN_5fi0sOXMqLIrhDkgqIVVTagO4wvKOQloCJkpfvnVgBJ0Oi52-UQNBKBVH8v1wRBltPHKrjMqVU9re6-y3nd4UbwWtIZzmfMJ_oRwo2ne_UdU_Ya2I5EOH3qh1cUIhdG3NpZYXwFICsNZURJWZM_U7OqJrZPuMXw4sfD6iGRWeMtOiAI8YN1LAfpj1RHaeOa66DK_LEsSLBsb2W6m7wrugk7SBCJSkMyec7ZVGLHo5Ha-X5wNO5qAAKzud0lz2KVcvwJW8lkcc9_lPxPIoDIpdCFEoG5xZHr0B2PkatCS8f31VQzP6LAmvkmHxbENb6V3Ov90RGw

将以上内容复制备用。

三 查看结果

3.1 打开浏览器输入访问地址:<https://NodeIP:PORT>。此处输入Node-2的访问地址：<https://172.31.3.12:31269>，其他节点亦如此。如下图：

3.2 认证方式选择口令，输入刚才获取到的token，即可登陆成功。

3.3 登录成功后，如下图：

四 总结

4.1 这是一个简单而快乐的过程，只要动手去做，其实很简单的！

4.2 这次实验是部署在kubernetes v1.12.1的。

4.3 实验使用的浏览器是Firefox v64.0.2，其他浏览器可能不支持。

Kubernetes Dashboard的安装与配置

原文地址：http://blog.51cto.com/3842834/2348304