1. 打开 /etc/fstab 注释掉 swap行2. 打开 /etc/sysconfig/selinux，将SELINUX=enforcing修改为SELINUX=disabled3. systemctl disable firewalld && systemctl stop firewalld4.echo 1 > /proc/sys/net/bridge/bridge-

在卸载K8s组件前，先执行kubeadm reset命令，清空K8s集群设置卸载管理组件kubeadm reset卸载管理组件yum erase -y kubelet kubectl kubeadm kubernetes-cnidocker全部清理docker rm $(docker ps -a -q)docker rmi $(docker images -q)docker 重启systemctl