系统：CentOS Linux release 7.6.1810 (Core)
docker版本：18.09.8
docker安装包下载：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-18.09.8-3.el7.x86_64.rpm
依赖包下载：
containerd.io：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.2-3.el7.x86_64.rpm
docker-ce-cli：https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-cli-18.09.8-3.el7.x86_64.rpm
container-selinux：https://mirrors.aliyun.com/centos/7/extras/x86_64/Packages/container-selinux-2.107-3.el7.noarch.rpm
安装命令
rpm -ivh docker-ce-cli-18.09.8-3.el7.x86_64.rpm rpm -ivh container-selinux-2.107-3.el7.noarch.rpm rpm -ivh containerd.io-1.2.2-3.el7.x86_64.rpm rpm -ivh docker-ce-18.09.8-3.el7.x86_64.rpm
# 启动 systemctl start docker # 查看状态 systemctl status docker
阿里云的源部署包
https://mirrors.aliyun.com/centos/7/extras/x86_64/Packages/
修改docker的默认存储路径，适合刚部署好
方法一
vi /etc/sysconfig/docker 修改OPTIONS中的--selinux-enabled=false，并增加--graph=/xxx/xxx(自定义目录)
方法二：
vi /usr/lib/systemd/system/docker.service 在ExecStart=xxx中增加--graph=/xxx/xxx(自定义目录)，同时也要配置步骤2中的--selinux-enabled=false， 否则会报SELinux is not supported with the overlay2 graph driver on
补充安装下载 Docker Compose链接
https://www.runoob.com/docker/docker-compose.html
继续更新，，，，，，