K8s踢出node
这个其实也是cka的题目之一,正好我这边也做要踢出一个节点
admin@k8s-01:~$ sudo kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-01 Ready control-plane,master 15h v1.22.3
k8s-02 Ready control-plane,master 15h v1.22.3
k8s-03 Ready <none> 14h v1.22.3
k8s-04 Ready <none> 15h v1.22.3
k8s-05 Ready <none> 98s v1.22.3
admin@k8s-01:~$
设置节点不可调度，在驱逐删除那个节点
admin@k8s-01:~$ sudo kubectl cordon k8s-05
node/k8s-05 cordoned
admin@k8s-01:~$ sudo kubectl drain k8s-05 --ignore-daemonsets --force
node/k8s-05 already cordoned
WARNING: ignoring DaemonSet-managed Pods: kube-system/calico-node-zmcj5, kube-system/kube-proxy-wckb4
node/k8s-05 drained
admin@k8s-01:~$sudo kubectl delete node k8s-05
获取一个node集合
admin@k8s-01:~$ sudo kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-01 Ready control-plane,master 16h v1.22.3
k8s-02 Ready control-plane,master 15h v1.22.3
k8s-03 Ready <none> 15h v1.22.3
k8s-04 Ready <none> 15h v1.22.3
admin@k8s-01:~$