CC00062.CloudKubernetes——|KuberNetes&二进制部署.V15|3台Server|——|kubernetes组件|metrics-server|

一、部署Metrics Server

### --- metrics server概述
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在新版的Kubernetes中系统资源的采集均使用Metrics-server，
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可以通过Metrics采集节点和Pod的内存、磁盘、CPU和网络的使用率。

### --- 部署metrics server
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切换到metrics-server安装目录下
[root@k8s-master01 ~]# cd /root/k8s-ha-install/metrics-server-0.4.x/

### --- 部署metrics-server
[root@k8s-master01 metrics-server-0.4.x]# kubectl
create -f .
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注：输出结果
serviceaccount/metrics-server created
clusterrole.rbac.authorization.k8s.io/system:aggregated-metrics-reader created
clusterrole.rbac.authorization.k8s.io/system:metrics-server created
rolebinding.rbac.authorization.k8s.io/metrics-server-auth-reader created
clusterrolebinding.rbac.authorization.k8s.io/metrics-server:system:auth-delegator created
clusterrolebinding.rbac.authorization.k8s.io/system:metrics-server created
service/metrics-server created
deployment.apps/metrics-server created
apiservice.apiregistration.k8s.io/v1beta1.metrics.k8s.io created

二、查看服务状态

### --- 等待metrics server启动然后查看状态
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查看metrics-server.pod状态
[root@k8s-master01 metrics-server-0.4.x]# kubectl get po -n kube-system
NAME
READY
STATUS
RESTARTS
AGE
metrics-server-595f65d8d5-l6f7k
1/1
Running
0
69s

### --- 查看metrics-server监控到pod资源的状态
~~~
查看metrics监控状态
[root@k8s-master01 metrics-server-0.4.x]# kubectl top node
NAME
CPU(cores)
CPU%
MEMORY(bytes)
MEMORY%
k8s-master01
246m
12%
1622Mi
42%
k8s-node01
171m
8%
712Mi
18%
k8s-node02
277m
13%
657Mi
22%