1，Kill掉Docker进程

ps -ef | grep docker
kill -9 pid

2，删除docker所在目录

rm -rf /etc/docker
rm -rf /run/docker
rm -rf /var/lib/dockershim
rm -rf /var/lib/docker

3，卸载docker相关包

• 查看相关包

yum list installed | grep docker

• 把匹配到的包执行 yum remove 删除

yum remove  containerd.io.x86_64
yum remove docker-ce.x86_64
yum remove docker-ce-cli.x86_64
yum remove docker-ce-rootless-extras.x86_64
yum remove docker-compose-plugin.x86_64
yum remove docker-scan-plugin.x86_64

4、查看docker是否卸载成功，为空就是卸载成功啦

 docker version

转载自：
只需三步，完美卸载Docker
https://blog.csdn.net/wangerrong/article/details/126750198