unbuntu安装docker

1. 配置镜像源

1.1 镜像源地址：

https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/

1.2 修改镜像源

• 进入到/etc/apt目录

cd /etc/apt

• 备份source.list文件

cp source.list source.list.bak

• 修改source.list

vi source.list

修改为：

# 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
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

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse

• 更新源

apt-get update

2. 安装docker

• 确保APT能使用https方式工作，并且CA证书已安装了

sudo apt-get install apt-transport-https ca-certificates

• 添加一个新的GPG密钥

sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

• 更新包

sudo apt-get update

• 安装docker

sudo apt-get install docker-engine

• 启动docker

sudo service docker start

• 验证docket

sudo docker run hello-world