!/bin/bash

首先清理运行到k8s群集中的pod

kubectl delete node --all

使用脚本停止所有k8s服务

for service in kube-apiserver kube-controller-manager kubectl kubelet etcd kube-proxy kube-scheduler;
do
systemctl stop $service
done

卸载k8s

kubeadm reset -f

卸载k8s相关程序

yum -y remove kube*

删除相关的配置文件

modprobe -r ipip
lsmod

手动删除配置文件和flannel网络配置和flannel网口：

rm -rf /etc/cni
rm -rf /root/.kube

删除cni网络

ifconfig cni0 down
ip link delete cni0
ifconfig flannel.1 down
ip link delete flannel.1

删除残留的配置文件

rm -rf ~/.kube/
rm -rf /etc/kubernetes/
rm -rf /etc/systemd/system/kubelet.service.d
rm -rf /etc/systemd/system/kubelet.service
rm -rf /etc/systemd/system/multi-user.target.wants/kubelet.service
rm -rf /var/lib/kubelet
rm -rf /usr/libexec/kubernetes/kubelet-plugins
rm -rf /usr/bin/kube*
rm -rf /opt/cni
rm -rf /var/lib/etcd
rm -rf /var/etcd

更新镜像

yum clean all
yum makecache