卸载清除K8S环境

在各个服务器节点下执行以下脚本

echo y | kubeadm reset

rm -rf /etc/kubernetes

rm -rf /etc/cni

rm -rf /opt/cni

ipvsadm --clear

iptables -F && iptables -t nat -F && iptables -t mangle -F && iptables -X

sysctl net.bridge.bridge-nf-call-iptables=1

ip link del cni0

ip link del flannel.1

rm -rf ~/.kube/

rm -rf /usr/bin/kube*

rm -rf /var/lib/etcd

rm -rf /var/etcd

rm -rf /etc/systemd/system/kubelet.service.d

rm -rf /etc/systemd/system/kubelet.service

yum remove -y kubelet kubeadm kubectl