配置命令行自动补全
[root@kmaster ~]# vim /etc/profile
source <(kubectl completion bash)
[root@kmaster ~]# source /etc/profile
设置 metrics-server监测节点使用
[root@kmaster ~]# kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.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
[root@kmaster ~]# kubectl top node
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
kmaster 88m 2% 1959Mi 26%
knode1 46m 2% 1191Mi 33%
knode2 39m 1% 1277Mi 36%