$ sudo yum install -y yum-utils 
    device-mapper-persistent-data 
    lvm2

# 官方源

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

# 国内源
$ sudo yum-config-manager 
    --add-repo 
    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

$ sudo yum-config-manager --enable docker-ce-edge

$ sudo yum-config-manager --enable docker-ce-test

$ sudo yum-config-manager --disable docker-ce-edge

$ sudo yum install docker-ce

# 或者安装指定版本
# 列出可用版本

$ yum list docker-ce --showduplicates | sort -r

# 安装指定版本

$ sudo yum install docker-ce-<VERSION>

# 例如 $ sudo yum install docker-ce-17.06.1.ce

$ sudo apt install 
     apt-transport-https 
     ca-certificates 
     curl 
     gnupg2 
     software-properties-common

# 官方源

# $ curl -fsSL https://download.docker.com/linux/$(. /etc/os-release; echo "$ID")/gpg | sudo apt-key add -
#
# $ sudo add-apt-repository 
#    "deb [arch=amd64] https://download.docker.com/linux/$(. /etc/os-release; echo "$ID") 
#    $(lsb_release -cs) 
#    stable"

# 国内源

$ curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/$(. /etc/os-release; echo "$ID")/gpg | sudo apt-key add -

$ sudo add-apt-repository 
   "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/$(. /etc/os-release; echo "$ID") 
   $(lsb_release -cs) 
   stable"

$ sudo apt-get update

$ sudo apt-get install docker-ce

# 或者安装指定版本
# 查看可供安装版本

$ apt-cache madison docker-ce

$ sudo apt-get install docker-ce=<VERSION>

# 例如 $ sudo apt-get install docker-ce=17.09.0~ce-0~debian

$ sudo apt-get install 
    apt-transport-https 
    ca-certificates 
    curl 
    software-properties-common

# 官方源

# $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

# $ sudo add-apt-repository 
#    "deb [arch=amd64] https://download.docker.com/linux/ubuntu 
#    $(lsb_release -cs) 
#    stable"

# 国内源

$ curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -

$ sudo add-apt-repository 
   "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu 
   $(lsb_release -cs) 
   stable"

$ sudo apt-get update

$ sudo apt-get install docker-ce

# 或者安装指定版本
# 查看可供安装版本

$ apt-cache madison docker-ce

$ sudo apt-get install docker-ce=<VERSION>

# 例如 $ sudo apt-get install docker-ce=17.09.0~ce-0~ubuntu

$ sudo systemctl enable docker.service

$ sudo systemctl start docker

$ sudo groupadd docker

$ sudo usermod -aG docker $USER

# 重新登录用户，有图形界面的 Linux，重新登录之后下面命令执行失败的，请重启电脑。

$ docker run --rm hello-world

{
  "registry-mirrors": [
    "https://registry.docker-cn.com"
  ],
  "debug": true,
  "dns": [
    "114.114.114.114",
    "8.8.8.8"
  ],
  "experimental": true
}

$ sudo yum remove docker-ce

$ sudo apt-get purge docker-ce

$ sudo rm -rf /var/lib/docker