1.替换阿里云yum源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo #下载阿里yum源2
yum makecache #生成仓库缓存
2.安装docker
yum install docker -y
3.启动docker
systemctl start docker #启动docker
systemctl enable docker #开机启动docker
systemctl status docker #查看docker状态
4.查看docker版本
docker version
5.卸载docker
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
