查询命令：
kubectl get pods -n kube-system
kubectl get ClusterRole -n kube-system
system
system
system
system
system
system
system
system
kubectl get jobs -n kube-system
查询详细信息：
kubectl describe pod -n kube-system gitlab-migrations.1-30d-gx9nz
删除命令：
kubectl delete job gitlab-migrations.1-2km -n kube-system
kubectl delete deployment my-nexus3
kubectl delete service nexus
kubectl delete pod gitlab-migrations.1-2km -n kube-system
强制删除：
kubectl delete pods <pod> --grace-period=0 --force