本章涉及到的命令不完全列表：
kubectl describe node/xxx
kubectl get node/xxx -o yaml
kubectl drain node/xxx
kubectl delete nodes/xxx
kubectl cordon node/xxx
kubectl uncordon node/xxx
kubectl get nodes --show-labels
kubect get pods --show-labels
kubectl get services --show-labels
kubectl label pod PODNAME key1=value1
kubectl label pod PODNAME key1-
kubectl label pod PODNAME key1=value2 --overwrite
kubectl create namespace foo
kubectl delete namespace foo
kubectl config get-contexts
kubectl config use-context foo-ctx
kubectl create -f xxxx.yaml
kubectl delete pods/xxx
kubectl delete -f xxx.yaml
kubectl get pods
kubectl get pod/xxxx
kubectl get pod/xxxx -o wide
kubectl edit pod/xxxx
kubectl describe pods/xxxx
kubectl apply -f xxx.yaml
kubectl delete service/xxx
kubectl get service/xx
kubectl describe service/xxx
kubectl edit service/xx
kubectl get events
