k8s剔除node节点

环境：k8s

1、查看节点找到需要剔除的节点

[root@master1 ~]# kubectl get nodes                    
NAME                 STATUS     ROLES    AGE    VERSION
host-172-21-210-10   NotReady   <none>   273d   v1.17.2
host-172-21-210-11   Ready      <none>   273d   v1.17.2
host-172-21-210-12   Ready      <none>   273d   v1.17.2
host-172-21-210-13   Ready      <none>   273d   v1.17.2
host-172-21-210-14   Ready      <none>   273d   v1.17.2
host-172-21-210-15   Ready      <none>   273d   v1.17.2
host-172-21-210-17   Ready      <none>   273d   v1.17.2
host-172-21-210-18   Ready      <none>   273d   v1.17.2
host-172-21-210-8    Ready      <none>   273d   v1.17.2

2、建该节点上的pod进行驱逐（要删除本地的数据，有本地持久化数据的请先手动迁移）

[root@master1 ~]# kubectl drain host-172-21-210-18 --force --ignore-daemonsets --delete-local-data
                  node/host-172-21-210-18 cordoned      
d4-ttdfn"         evicting pod "jaeger-collector-fb95487
867"              evicting pod "ums-tldxgq-854bc5d7d6-lf
658c-jx7mk"       evicting pod "vsitregist-ur5nbg-784957
opin-test-6c787767evicting pod "kubesphere-router-chinapc6-jnmq4"
                  evicting pod "etcd-598db9c7b9-st69f"  
q9g"              evicting pod "gateway-v1-549b4fd77d-2z
xnb"              evicting pod "examine-v1-5bdc75b446-q4
f7847f6c-rlchf"   evicting pod "ks-controller-manager-7f
                  evicting pod "uaa-v1-54bfb44d66-l2qlt"
9z"               evicting pod "uaa-jeds7v-595bfb8d8-6sq
7fb-2g4fr"        evicting pod "alerting-watcher-5fcf9fb
                  evicting pod "nacos-headless-eby8qi-0"

3、在所有节点都驱逐完成后，删除node

[root@master1 ~]# kubectl delete node host-172-21-210-18