k8s部署metrics-server资源统计模块（kubectl top）-蒲公英云

k8s部署metrics-server资源统计模块（kubectl top）

以你之姓@ 2022-10-06 09:55 196阅读 0赞

安装K8S

参见centos安装kubernetes，早期的这篇博客，没有部署统计模块，在这里补充。

拉取`metrics-server`镜像

由于google的镜像仓库需要翻墙，拉取速度才会变快，因此这里使用阿里的镜像。

docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/metrics-server-amd64:v0.3.6
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/metrics-server-amd64:v0.3.6 k8s.gcr.io/metrics-server-amd64:v0.3.6
docker rmi registry.cn-hangzhou.aliyuncs.com/google_containers/metrics-server-amd64:v0.3.6

部署`metrics-server`

下载metrics-server的yaml文件，https://github.com/kubernetes-sigs/metrics-server/archive/v0.3.6.tar.gz
tar zxvf metrics-server-0.3.6.tar.gz
cd /root/metrics-server-0.3.6/deploy/1.8+

vi metrics-server-deployment.yaml

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: metrics-server
  namespace: kube-system
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: metrics-server
  namespace: kube-system
  labels:
    k8s-app: metrics-server
spec:
  selector:
    matchLabels:
      k8s-app: metrics-server
  template:
    metadata:
      name: metrics-server
      labels:
        k8s-app: metrics-server
    spec:
      serviceAccountName: metrics-server
      volumes:
      - name: tmp-dir
        emptyDir: { }
      containers:
      - name: metrics-server
        image: k8s.gcr.io/metrics-server-amd64:v0.3.6
        # 修改开始
        imagePullPolicy: IfNotPresent
        command:
        - /metrics-server
        - --kubelet-insecure-tls
        - --kubelet-preferred-address-types=InternalDNS,InternalIP,ExternalDNS,ExternalIP,Hostname
        # 修改结束
        volumeMounts:
        - name: tmp-dir
          mountPath: /tmp