部署Dashborad以及监控组件Heaperster教程

续上一篇《部署K8SV1.11.0+CalicoV3.13集群》后，我们开始进行Dashborad以及监控组件Heaperster的部署。

• 节点以及环境如下

IP	Role	Hostname
10.18.223.243	Master	k8s-node10-18-223-243
10.18.223.244	Worker	k8s-node10-18-223-243
10.18.223.244	Worker	k8s-node10-18-223-243

工作节点标记为禁止调度: kubectl cordon Hostname

取消调度：kubectl uncordon Hostname

将Dashborad以及监控组件Heaperster部署在Matser上，因此部署前，需要将其他工作节点标记为unschedulabled（不可调度），因为在部署的过程中，服务器是随机进行调度部署在其他地方上。

• 对工作节点调度结果如下：
  调度前

[root@k8s-node10-18-223-243 images]# kubectl get nodes
NAME                    STATUS    ROLES     AGE       VERSION
k8s-node10-18-223-243   Ready     master    2d        v1.11.0
k8s-node10-18-223-244   Ready     <none>    2d        v1.11.0
k8s-node10-18-223-245   Ready     <none>    2d        v1.11.0

调度后

[root@k8s-node10-18-223-243 images]# kubectl cordon k8s-node10-18-223-244
node/k8s-node10-18-223-244 cordoned
[root@k8s-node10-18-223-243 images]# kubectl cordon k8s-node10-18-223-245
node/k8s-node10-18-223-245 cordoned
[root@k8s-node10-18-223-243 images]# kubectl get nodes
NAME                    STATUS                     ROLES     AGE       VERSION
k8s-node10-18-223-243   Ready                      master    2d        v1.11.0
k8s-node10-18-223-244   Ready,SchedulingDisabled   <none>    2d        v1.11.0
k8s-node10-18-223-245   Ready,SchedulingDisabled   <none>    2d        v1.11.0

部署前yaml文件以及images准备：

[root@k8s-node10-18-223-243 dashboard]# ll
total 173980
-rw-r--r-- 1 root root 102800384 Jul  4 11:22 dashboard.tar
-rw-r--r-- 1 root root      1437 Aug  3 14:27 heapster-controller.yaml
-rw-r--r-- 1 root root  75337216 Jul  4 17:41 heapster.tar
-rw-r--r-- 1 root root      3640 Aug  3 14:26 kubernetes-dashboard.yaml

• 修改 yaml 文件中的 Dashboard Service以及Heaperster。

[root@k8s-node10-18-223-243 dashboard]# cat heapster-controller.yaml |grep 243
        kubernetes.io/hostname: k8s-node10-18-223-243
[root@k8s-node10-18-223-243 dashboard]# cat kubernetes-dashboard.yaml |grep 243
        kubernetes.io/hostname: k8s-node10-18-223-243

启动 Dashboard

[root@k8s-node10-18-223-243 dashboard]# kubectl apply -f kubernetes-dashboard.yaml 
secret/kubernetes-dashboard-certs created
serviceaccount/kubernetes-dashboard created
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/kubernetes-dashboard created

启动 Heaperster

[root@k8s-node10-18-223-243 dashboard]# kubectl apply -f heapster-controller.yaml 
serviceaccount/heapster created
clusterrolebinding.rbac.authorization.k8s.io/heapster created
deployment.extensions/heapster created
service/heapster created

Dashboard界面显示以及Heaperster

到此，Dashborad以及监控组件Heaperster已经安装完毕。