Ubuntu 的软件源配置文件是 /etc/apt/sources.list
换国内的，不然会疯。下面是清华大学滴：
1# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释 2deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse 3# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse 4deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse 5# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse 6deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse 7# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse 8deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse 9# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
然后reboot一下服务器。
1$ sudo apt-get update 2 3$ sudo apt-get install \ 4 apt-transport-https \ 5 ca-certificates \ 6 curl \ 7 software-properties-common 8 9$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - 10 11$ sudo apt-key fingerprint 0EBFCD88 12 13$ sudo add-apt-repository \ 14 "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ 15 $(lsb_release -cs) \ 16 stable" 17 18$ sudo apt-get update 19 20$ sudo apt-get install docker-ce
然后配置个docker加速器
curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://xxxxxxxxx.m.daocloud.io
然后根据提示，重新启动一下docker服务，输入docker info，就可以看到docker的情况啦~