yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-selinux docker-engine-selinux docker-engine
rm -rf /etc/systemd/system/docker.service.d
rm -rf /var/lib/docker
rm -rf /var/run/docker
rm -rf /etc/docker
查看Docker安装过的包
yum list installed | grep docker
删除安装的软件包
yum -y remove 包名
彻底删除Docker
原文：https://www.cnblogs.com/liuyangQAQ/p/14800533.html