1. 杀死所有运行容器

# docker kill $(docker ps -a -q)

2. 删除所有容器

# docker rm $(docker ps -a -q)

3. 删除所有镜像

# docker rmi $(docker images -q)

4. 停止 docker 服务

# systemctl stop docker

5. 删除存储目录

# rm -rf /etc/docker
# rm -rf /run/docker
# rm -rf /var/lib/dockershim
# rm -rf /var/lib/docker
如果发现删除不掉，需要先 umount，如

# umount /var/lib/docker/devicemapper
6. 卸载 docker

查看已安装的 docker 包

# yum list installed | grep docker

卸载相关包

# yum remove docker-engine docker-engine-selinux.noarch

https://www.omicsclass.com/article/1184