查看版本

kubectl version

查看集群信息

kubectl cluster-info

返回值：

• Kubernetes master is running at https://139.224.245.150:6443
• metrics-server is running at https://139.224.245.150:6443/api/v1/namespaces/kube-system/services/heapster/proxy
• KubeDNS is running at https://139.224.245.150:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

  查看当前节点

kubectl get nodes

可以从这个节点中看到当前节点是否 ready.