一、下载准备
docker安装包
下载地址：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-18.09.8-3.el7.x86_64.rpm
三个依赖包
下载地址：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.2-3.el7.x86_64.rpm
下载地址：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-cli-18.09.8-3.el7.x86_64.rpm
下载地址：http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.107-3.el7.noarch.rpm
**二、**依赖组件cgroup，下载以下四个依赖包：
libcgroup-0.41-8.el7.x86_64.rpm
下载地址：http://mirrors.163.com/centos/7/os/x86_64/Packages/libcgroup-0.41-21.el7.x86_64.rpm
libcgroup-devel-0.41-8.el7.x86_64.rpm
下载地址：http://mirrors.163.com/centos/7/os/x86_64/Packages/libcgroup-devel-0.41-21.el7.x86_64.rpm
libcgroup-pam-0.41-8.el7.x86_64.rpm
下载地址：http://mirrors.163.com/centos/7/os/x86_64/Packages/libcgroup-pam-0.41-21.el7.x86_64.rpm
libcgroup-tools-0.41-8.el7.x86_64.rpm
下载地址：http://mirrors.163.com/centos/7/os/x86_64/Packages/libcgroup-tools-0.41-21.el7.x86_64.rpm
！！！！将以上链接全部下载放在一个文件夹（文件数量8个）！！！！！！
三、解压并安装
1、rpm -ivh libcgroup-*
2、rpm -ivh docker-ce-cli-18.09.8-3.el7.x86_64.rpm
3、rpm -ivh container-selinux-2.107-3.el7.noarch.rpm
4、rpm -ivh containerd.io-1.2.2-3.el7.x86_64.rpm
5、rpm -ivh docker-ce-18.09.8-3.el7.x86_64.rpm
四、启动
# 启动
systemctl start docker
# 查看状态
systemctl status docker
五、安装docker-compose
1、把下载的安装包上传到服务器的/usr/local/bin/目录下，增加执行权限
chmod a+x docker-compose
2、测试是否成功
docker-compose --version
