k8s临时驱逐pod先暂行让一个节点宕掉的命令
因为想要重新安装docker，所以先将22这个节点宕掉命令如下[root@hdss7-21 docker]# kubectl drain hdss7-22.host.com --ignore-daemonsetsnode/hdss7-22.host.com already cordonedWARNING: ignoring DaemonSet-managed Pods: default/nginx
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因为想要重新安装docker，所以先将22这个节点宕掉
命令如下
[root@hdss7-21 docker]# kubectl drain hdss7-22.host.com --ignore-daemonsets
node/hdss7-22.host.com already cordoned
WARNING: ignoring DaemonSet-managed Pods: default/nginx-ds-m987l, kube-system/traefik-ingress-2jb8z
evicting pod "heapster-b5b9f794-24g5q"
evicting pod "dubbo-demo-consumer-7f57887dd4-76njz"
evicting pod "jenkins-b56cf89cc-hlvwp"
pod/dubbo-demo-consumer-7f57887dd4-76njz evicted
pod/jenkins-b56cf89cc-hlvwp evicted
pod/heapster-b5b9f794-24g5q evicted
node/hdss7-22.host.com evicted
[root@hdss7-21 docker]# kubectl get pod -A -owide ##这个时候查看应该有pod在一个一个的被驱逐
[root@hdss7-21 docker]# kubectl get node #查看状态
NAME STATUS ROLES AGE VERSION
hdss7-21.host.com Ready master,node 6d2h v1.15.2
hdss7-22.host.com Ready,SchedulingDisabled master,node 6d2h v1.15.2
修复好后开启节点
[root@hdss7-21 docker]# kubectl uncordon hdss7-22.host.com
node/hdss7-22.host.com uncordoned
[root@hdss7-21 docker]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
hdss7-21.host.com Ready master,node 6d2h v1.15.2
hdss7-22.host.com Ready master,node 6d2h v1.15.2
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