重置Kubeadm

kubeadm reset -f

删除docker无用的镜像容器

docker system prune -f

清空iptables规则

iptables -t nat -F 
iptables -t nat -X 
iptables -t nat -P PREROUTING ACCEPT 
iptables -t nat -P POSTROUTING ACCEPT 
iptables -t nat -P OUTPUT ACCEPT 
iptables -t mangle -F 
iptables -t mangle -X 
iptables -t mangle -P PREROUTING ACCEPT 
iptables -t mangle -P INPUT ACCEPT 
iptables -t mangle -P FORWARD ACCEPT 
iptables -t mangle -P OUTPUT ACCEPT 
iptables -t mangle -P POSTROUTING ACCEPT 
iptables -F 
iptables -X 
iptables -P FORWARD ACCEPT 
iptables -P INPUT ACCEPT 
iptables -P OUTPUT ACCEPT 
iptables -t raw -F 
iptables -t raw -X 
iptables -t raw -P PREROUTING ACCEPT 
iptables -t raw -P OUTPUT ACCEPT