执行kubectl drain node2 –ignore-daemonsets，报错！！
error: unable to drain node “node2″, aborting command…
There are pending nodes to be drained:
node2
error: cannot delete Pods with local storage (use –delete-local-data to override): kubesphere-devops-system/ks-jenkins-75bff875b-lz68r, kubesphere-devops-system/uc-jenkins-update-center-759b5b5885-wshtz, kubesphere-monitoring-system/prometheus-k8s-0, kubesphere-monitoring-system/prometheus-k8s-system-0, kubesphere-system/minio-8cd46c8d9-8mksg
