kubernetes dashboard安装

kubernetes dashboard安装

nginx集群部署

[[email protected] bin]# ./kubectl run nginx --image=nginx--port=8000  --replicas=2

deployment "nginx" created

[[email protected] bin]# ./kubectl create -f ./nginx-service.yaml

service "nginx" created

• 查看nginx集群状态

[[email protected] bin]# ./kubectl get pods

NAME                    READY     STATUS              RESTARTS   AGE

nginx-824979794-kqhm4   0/1       ContainerCreating   0         18s

nginx-824979794-lp3h1   0/1       ContainerCreating   0         18s

 

• 查看具体原因：ContainerCreating镜像下载失败，由于国外镜像无法下载

[[email protected] bin]#./kubectl describe pod nginx

• 删除nginx集群

[[email protected] bin]#./kubectl delete -f ./nginx-service.yaml

 

• 从阿里云国内地址下载pause镜像

[[email protected] bin]#docker pullregistry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0

[[email protected] bin]#docker tag registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0gcr.io/google_containers/pause-amd64:3.0

 

• 设置nginx pause本地镜像路径，重新部署

[[email protected] bin]# ./kubectl run nginx--image=gcr.io/google_containers/pause-amd64:3.0 --port=8000  --replicas=2

deployment "nginx" created

[[email protected] bin]# ./kubectl create -f ./nginx-service.yaml

service "nginx" created

 

• 查看nginx集群pod状态：Running为成功状态

[[email protected] bin]# ./kubectl get pods

NAME                     READY     STATUS   RESTARTS   AGE

nginx-1034722000-50gmc   1/1       Running  0          19s

nginx-1034722000-b6qf9   1/1       Running  0          19s

 

• 查看nginx集群services状态

[[email protected] bin]# ./kubectl get services

NAME         CLUSTER-IP     EXTERNAL-IP   PORT(S)  AGE

kubernetes   10.10.10.1     <none>        443/TCP   1d

nginx        10.10.10.147   <none>        80/TCP    3m

 

kubernetes-dashboard正式部署

• 下载kube-dashboard.yaml模板

[[email protected] bin]# wgethttp://docs.minunix.com/docker/kubernetes-dashboard.yaml -O./kube-dashboard.yaml

• 修改kube-dashboard.yaml模板，设置api-server地址

[[email protected] bin]# vi kube-dashboard.yaml

 

- --apiserver-host=http://192.169.21.128:8080

 

• 部署kubernetes-dashboard

[[email protected] bin]# ./kubectl create -f kube-dashboard.yaml

 

• 查看kubernetes-dashboard部署状态

[[email protected] bin]# ./kubectl get pod --all-namespaces

NAMESPACE     NAME                                    READY     STATUS             RESTARTS   AGE

default      nginx-1034722000-dptdw                 1/1       Running            0          28m

default      nginx-1034722000-l08b6                 1/1       Running            0          28m

kube-system  kubernetes-dashboard-2245610742-dv97j  0/1       ImagePullBackOff   0         5m

• 查看详细错误日志：状态为ContainerCreating或者ImagePullBackOff，从国外下载kubernetes-dashboard镜像失败

[[email protected] bin]# ./kubectl describe --namespace=kube-system pokubernetes-dashboard-2245610742-dv97j

 

• 从阿里云国内地址下载kubernetes-dashboard镜像

[[email protected] bin]# docker pullregistry.cn-hangzhou.aliyuncs.com/google-containers/kubernetes-dashboard-amd64:v1.5.0

[[email protected] bin]# docker tagregistry.cn-hangzhou.aliyuncs.com/google-containers/kubernetes-dashboard-amd64:v1.5.0gcr.io/google_containers/kubernetes-dashboard-amd64:v1.5.1

• 修改kube-dashboard.yaml模板，设置从本地镜像安装

[[email protected] bin]# vi kube-dashboard.yaml

 

image: gcr.io/google_containers/kubernetes-dashboard-amd64:v1.5.1 #使用本地镜像

imagePullPolicy: Never  #使用本地镜像

 

• 删除kube-dashboard部署配置

[[email protected] bin]# ./kubectl delete -f kube-dashboard.yaml

deployment "kubernetes-dashboard" deleted

service "kubernetes-dashboard" deleted

 

• 重新部署kubernetes-dashboard

[[email protected] bin]# ./kubectl create -f kube-dashboard.yaml

deployment "kubernetes-dashboard" created

service "kubernetes-dashboard" created

 

• 查看kubernetes-dashboard部署状态

[[email protected] bin]# ./kubectl get pod --all-namespaces

NAMESPACE     NAME                                    READY     STATUS   RESTARTS   AGE

default      nginx-1034722000-dptdw                 1/1       Running   0         33m

default      nginx-1034722000-l08b6                 1/1       Running   0         33m

kube-system  kubernetes-dashboard-2752587873-bdmjv  1/1       Running   0         11s

 

• 查看kubernetes-dashboard部署日志

[[email protected] bin]# ./kubectl logs -fkubernetes-dashboard-2752587873-bdmjv --namespace=kube-system

Using HTTP port: 9090

Using apiserver-host location: http://192.169.21.128:8080

Creating API server client for http://192.169.21.128:8080

Successful initial request to the apiserver, version: v1.7.15

Creating in-cluster Heapster client

 

• 访问kubernetes-dashboard

 

http://192.169.21.128:8080/ui