卸载k8s, 可以参考这篇文章: https://blog.csdn.net/ccagy/article/details/85845979
rm -rf /etc/kubernetes/*
rm -rf ~/.kube/*
rm -rf /var/lib/etcd/*
lsof -i :6443|grep -v "PID"|awk '{print "kill -9",$2}'|sh
lsof -i :10259|grep -v "PID"|awk '{print "kill -9",$2}'|sh
lsof -i :10257|grep -v "PID"|awk '{print "kill -9",$2}'|sh
lsof -i :2379|grep -v "PID"|awk '{print "kill -9",$2}'|sh
lsof -i :2380|grep -v "PID"|awk '{print "kill -9",$2}'|sh