安装docker
yum install -y yum-utils device-mapper-persistent-data lvm2
添加docker的yum源
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
配置镜像加速器：自由选择
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://zggyaen3.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
更新yum源缓存， 安装docker-ce
$ sudo yum makecache fast
$ sudo yum install docker-ce
普通用户需要加入docker组
$ sudo usermod -a -G docker ${USER}
修改docker存储位置(可以不改)
$ sudo systemctl stop docker
$ sudo mv /var/lib/docker /home/lan/docker
$ sudo ln -s /home/lan/docker /var/lib/docker
$ sudo systemctl start docker
$ sudo systemctl enable docker
安装docker-compose
$ sudo curl -L https://github.com/docker/compose/releases/download/1.25.5/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
$ sudo chmod +x /usr/local/bin/docker-compose
