【二】Kubernetes Dashboard 安装,快速,简便运行Dashboard

环境配置如下 docker for mac 历史版本全集 (MacOS High Sierra 10.13.4 (17E202))

  • 下载最新的 Docker for Mac 或者 Edge 版本,即可以看到内置的 Kubernetes 集群,直接点击安装即可在本地搭建好单节点的 Kubernetes 环境:
    这里写图片描述
  • 安装完毕后,如果我们也勾选了 Show system containers 选项,那么使用如下的 Docker 命令,能看到自动安装的 Kubernetes 相关容器:[如果下载失败、记得翻&墙哟]
    这里写图片描述

  • 下载完成后,可以查看容器:

docker container ls
CONTAINER ID        IMAGE                                                                        COMMAND                  CREATED             STATUS              PORTS               NAMES
b309375c1719        registry.cn-qingdao.aliyuncs.com/charleslee1120/kubernetes-dashboard-amd64   "/dashboard --insecu…"   35 minutes ago      Up 35 minutes                           k8s_kubernetes-dashboard_kubernetes-dashboard-5bd6f767c7-z7zqt_kube-system_1e83dd95-574a-11e8-9059-025000000001_0
f0a381160602        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 About an hour ago   Up About an hour                        k8s_POD_kubernetes-dashboard-5bd6f767c7-z7zqt_kube-system_1e83dd95-574a-11e8-9059-025000000001_0
6ec7eb1815df        docker/kube-compose-api-server                                               "/api-server --kubec…"   2 hours ago         Up 2 hours                              k8s_compose_compose-api-7bb7b5968f-bgvz8_docker_ff60e14f-533c-11e8-bffe-025000000001_1
629af77e1b5c        docker/kube-compose-controller                                               "/compose-controller…"   2 hours ago         Up 2 hours                              k8s_compose_compose-5d4f4d67b6-ttmpk_docker_ffa06241-533c-11e8-bffe-025000000001_0
7b7bc73c9b4d        gcr.io/google_containers/k8s-dns-sidecar-amd64                               "/sidecar --v=2 --lo…"   2 hours ago         Up 2 hours                              k8s_sidecar_kube-dns-6f4fd4bdf-bxkgg_kube-system_dd401bc0-533c-11e8-bffe-025000000001_0
e8df8fbc0b78        gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64                         "/dnsmasq-nanny -v=2…"   2 hours ago         Up 2 hours                              k8s_dnsmasq_kube-dns-6f4fd4bdf-bxkgg_kube-system_dd401bc0-533c-11e8-bffe-025000000001_0
9ebccac307d6        gcr.io/google_containers/k8s-dns-kube-dns-amd64                              "/kube-dns --domain=…"   2 hours ago         Up 2 hours                              k8s_kubedns_kube-dns-6f4fd4bdf-bxkgg_kube-system_dd401bc0-533c-11e8-bffe-025000000001_0
c5282fe45585        gcr.io/google_containers/kube-proxy-amd64                                    "/usr/local/bin/kube…"   2 hours ago         Up 2 hours                              k8s_kube-proxy_kube-proxy-znhpr_kube-system_dd40eb4d-533c-11e8-bffe-025000000001_0
7d44d8a9be2b        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_compose-api-7bb7b5968f-bgvz8_docker_ff60e14f-533c-11e8-bffe-025000000001_0
a529d0c4af1e        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_compose-5d4f4d67b6-ttmpk_docker_ffa06241-533c-11e8-bffe-025000000001_0
23bfc8a97ee8        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_kube-dns-6f4fd4bdf-bxkgg_kube-system_dd401bc0-533c-11e8-bffe-025000000001_0
5b016184998a        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_kube-proxy-znhpr_kube-system_dd40eb4d-533c-11e8-bffe-025000000001_0
c8dcb45da42b        gcr.io/google_containers/kube-controller-manager-amd64                       "kube-controller-man…"   2 hours ago         Up 2 hours                              k8s_kube-controller-manager_kube-controller-manager-docker-for-desktop_kube-system_d0d736e78d128605e52b4714b87194e2_2
1ef8394a9996        gcr.io/google_containers/kube-scheduler-amd64                                "kube-scheduler --le…"   2 hours ago         Up 2 hours                              k8s_kube-scheduler_kube-scheduler-docker-for-desktop_kube-system_9ef17f6778a1c83c8484086fe563496a_1
e75037a33701        gcr.io/google_containers/kube-apiserver-amd64                                "kube-apiserver --ad…"   2 hours ago         Up 2 hours                              k8s_kube-apiserver_kube-apiserver-docker-for-desktop_kube-system_456d274175b3da6d378ff65feef4a86b_1
34f3513a02f4        gcr.io/google_containers/etcd-amd64                                          "etcd --listen-clien…"   2 hours ago         Up 2 hours                              k8s_etcd_etcd-docker-for-desktop_kube-system_7278f85057e8bf5cb81c9f96d3b25320_1
b620faa00929        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_kube-scheduler-docker-for-desktop_kube-system_9ef17f6778a1c83c8484086fe563496a_1
1130d71b5d1c        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_kube-controller-manager-docker-for-desktop_kube-system_d0d736e78d128605e52b4714b87194e2_1
1d9a857b0288        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_kube-apiserver-docker-for-desktop_kube-system_456d274175b3da6d378ff65feef4a86b_1
a8411093a0a4        gcr.io/google_containers/pause-amd64:3.0                                     "/pause"                 2 hours ago         Up 2 hours                              k8s_POD_etcd-docker-for-desktop_kube-system_7278f85057e8bf5cb81c9f96d3b25320_4
shenhl:~ user$ 
  • 下载的镜像 images如下:
docker images -a
REPOSITORY                                                                   TAG                 IMAGE ID            CREATED             SIZE
redis                                                                        latest              bfcb1f6df2db        12 days ago         107MB
gcr.io/google_containers/kube-apiserver-amd64                                v1.9.6              a5c066e8c9bf        7 weeks ago         212MB
gcr.io/google_containers/kube-controller-manager-amd64                       v1.9.6              472b6fcfe871        7 weeks ago         139MB
gcr.io/google_containers/kube-scheduler-amd64                                v1.9.6              25d7b2c6f653        7 weeks ago         62.9MB
gcr.io/google_containers/kube-proxy-amd64                                    v1.9.6              70e63dd90b80        7 weeks ago         109MB
docker/kube-compose-controller                                               v0.3.0-rc4          960fed8457c5        2 months ago        30.6MB
docker/kube-compose-api-server                                               v0.3.0-rc4          adfd9ebd6d6d        2 months ago        43.8MB
k8s.gcr.io/kubernetes-dashboard-amd64                                        v1.8.3              0c60bcf89900        2 months ago        102MB
registry.cn-qingdao.aliyuncs.com/charleslee1120/kubernetes-dashboard-amd64   v1.8.3              0c60bcf89900        2 months ago        102MB
gcr.io/google_containers/etcd-amd64                                          3.1.11              59d36f27cceb        5 months ago        194MB
gcr.io/google_containers/k8s-dns-sidecar-amd64                               1.14.7              db76ee297b85        6 months ago        42MB
gcr.io/google_containers/k8s-dns-kube-dns-amd64                              1.14.7              5d049a8c4eec        6 months ago        50.3MB
gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64                         1.14.7              5feec37454f4        6 months ago        41MB
gcr.io/google_containers/pause-amd64                                         3.0                 99e59f495ffa        2 years ago         747kB
shenhl:~ user$ 

k8s.gcr.io/kubernetes-dashboard-amd64 需要单独下载,后面有讲解。

  • kubectl 控制命令[具体意思,看字母理解]
kubectl get pod
kubectl get pod --all-namespaces
kubectl describe pod
kubectl get pods --namespace kube-system
kubectl --namespace kube-system logs kubernetes-dashboard-5bd6f767c7-z7zqt

命令操作演示

安装Kubernetes Dashboard

  • 运行下面的命令,安装Dashboard service pod:
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml
  • 查看安装的结果【kubernetes-dashboard-5bd6f767c7-z7zqt】
shenhl:~ user$ kubectl get pods --namespace kube-system
NAME                                         READY     STATUS    RESTARTS   AGE
etcd-docker-for-desktop                      1/1       Running   1          5d
kube-apiserver-docker-for-desktop            1/1       Running   1          5d
kube-controller-manager-docker-for-desktop   1/1       Running   2          5d
kube-dns-6f4fd4bdf-bxkgg                     3/3       Running   0          5d
kube-proxy-znhpr                             1/1       Running   0          5d
kube-scheduler-docker-for-desktop            1/1       Running   1          5d
kubernetes-dashboard-5bd6f767c7-z7zqt 

-如果出现pending,先找出问题,然后可以尝试将镜像单独拉取下来,方法如下:
这里写图片描述
-查看问题原因如下

kubectl --namespace kube-system logs kubernetes-dashboard-5bd6f767c7-z7zqt

这里写图片描述
-解决问题:将镜像单独拉取下来

docker pull registry.cn-qingdao.aliyuncs.com/charleslee1120/kubernetes-dashboard-amd64
docker tag registry.cn-qingdao.aliyuncs.com/charleslee1120/kubernetes-dashboard-amd64 k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.3
  • 再次查看,应该就是运行running状态
    这里写图片描述
  • 建立账号和授权:将下面的内容保存为文件,如dashboard-rbac.yaml。
apiVersion: v1
kind: ServiceAccount
metadata:
  name: dashboard
  namespace: kube-system

---

kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: dashboard
subjects:
  - kind: ServiceAccount
    name: dashboard
    namespace: kube-system
roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: rbac.authorization.k8s.io

-然后执行安装(所建立的账号为dashboard):

kubectl create -f dashboard-rbac.yaml
--查看创建是否成功
kubectl get sa --all-namespaces

参考官方文档-详细介绍参见:https://github.com/kubernetes/dashboard/wiki/Creating-sample-user

这里写图片描述

-如果创建失败,如何删除如下:
kubectl delete sa/dashboard --namespace kube-system
kubectl delete clusterrolebindings/dashboard --namespace kube-system
  • 可以使用端口转发或者kubelet内置的Web服务来提供后台服务
--端口转发,外部可访问
kubectl port-forward kubernetes-dashboard-5bd6f767c7-z7zqt 8443:8443 --namespace=kube-system &
-- 内置服务,只能本机访问
kubectl proxy

这里写图片描述

-获取访问方式:

-- 访问时kubectl proxy命令一定要执行,不然访问不到了
http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/#!/login
http://localhost:8001/ui

这里写图片描述

-获得登录授权码

kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep dashboard | awk '{print $1}')

-运行结果如下[不要关闭,kubectl proxy ,记得打开,我实验时,就关闭了,最后又重启了下]:

这里写图片描述

-将上面的token内容拷贝下来,然后进入Web界面的 token ,复制到Enter Token下面的编辑框中

-成功登录页面,开始享受你的Kubernetes之旅吧
这里写图片描述
这里写图片描述

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转载自blog.csdn.net/shenhonglei1234/article/details/80312709
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