https://github.com/kubernetes-sigs/metrics-server/releases

wget -O metrics-server.yaml https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

args中增加 --kubelet-insecure-tls 关闭证书认证

# vim metrics-server.yaml
    spec:
      containers:
      - args:
        - --cert-dir=/tmp
        - --secure-port=10250
        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
        - --kubelet-use-node-status-port
        - --metric-resolution=15s
        - --kubelet-insecure-tls
        image: registry.k8s.io/metrics-server/metrics-server:v0.8.0

# kubectl apply -f metrics-server.yaml
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

# kubectl top node
NAME      CPU(cores)   CPU(%)   MEMORY(bytes)   MEMORY(%)   
arm-us1   150m         9%       2784Mi          25%         
arm-us2   178m         11%      2083Mi          19%