Ubuntu 的軟件源配置文件是 /etc/apt/sources.list

換國內的，不然會瘋。下面是清華大學滴：

# 默認註釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消註釋
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
 

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
 

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse

然後reboot一下服務器。

$ sudo apt-get update

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

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

$ sudo apt-key fingerprint 0EBFCD88

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

$ sudo apt-get update

$ sudo apt-get install docker-ce

然後配置個docker加速器

curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://xxxxxxxxx.m.daocloud.io

然後根據提示，重新啟動一下docker服務，輸入docker info，就可以看到docker的情況啦~

ubuntu 16.04 跑 docker