dnf install yum-utils device-mapper-persistent-data lvm2
# yum-utils：提供 yum-config-manager，便于操作yum源
# device-mapper-persistent-data 和 lvm2：device mapper 存储驱动程序的依赖

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

dnf install docker-ce

# 以CentOS 8 为例
dnf install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm

dnf install docker-ce

# 为了让apt支持https而安装以下包
sudo apt install apt-transport-https ca-certificates gnupg2 software-properties-common
# 导入官方的GPG密钥
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
# 添加官方源到apt，等价于直接编辑sources.lst
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian stretch pool stable"
# 更新apt数据库
sudo apt update
# 安装
sudo apt install docker-ce

systemctl start docker

mkdir -p /etc/docker
vim /etc/docker/daemon.json

{
    "registry-mirrors": ["加速器地址",
                         "多个加速器",
                         "多个加速器"
                        ]
}

systemctl daemon-reload
systemctl restart docker