在centos7上安装docker&&离线安装

卸载:列出你安装过的包

yum list installed | grep docker
yum list installed | grep docker
docker-engine.x86_64   1.7.1-1.el7 @/docker-engine-1.7.1-1.el7.x86_64.rpm

删除安装包

sudo yum - y remove docker-engine.x86_64

删除镜像/容器等

rum -rf /var/lib/docker

安装：https://dcos.io/docs/1.8/administration/installing/custom/system-requirements/install-docker-centos/