# 安装依赖包
yum install -y yum-utils device-mapper-persistent-data lvm2
# 添加Docker软件包源
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
#关闭测试版本list(只显示稳定版)
sudo yum-config-manager --enable docker-ce-edge
sudo yum-config-manager --enable docker-ce-test
# 更新yum包索引
yum makecache fast
#NO.1 直接安装Docker CE (will always install the highest possible version,可能不符合你的需求)
yum install docker-ce
#NO.2 指定版本安装
yum list docker-ce --showduplicates|sort -r
yum install docker-ce-17.09.0.ce -y
![获取Centos7安装Docker各种姿势(指定版本)](http://i2.51cto.com/images/blog/201712/14/592802e90666e7ea428526ae6a9c7064.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)
# 启动
systemctl start docker
# 测试
docker run hello-world
docker version
# 卸载
yum remove docker-ce
rm -rf /var/lib/docker