Ubuntu安装docker

docker的github地址是：https://github.com/docker/docker
官方网站是：https://www.docker.com/
本次安装体验docker的环境是ubuntu17 64位。
打开终端，su - 到root用户（docker安装建议全在root用户下进行）

1.确认安装了wget工具

which wget
安装wget:apt-get install wget

2.配置apt源

mv /etc/apt/sources.list /etc/apt/sources.list.bak
vim /etc/apt/sources.list
写入如下内容

deb http://mirrors.163.com/ubuntu/ zesty main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ zesty-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ zesty-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ zesty-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ zesty-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ zesty main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ zesty-security main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ zesty-updates main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ zesty-proposed main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ zesty-backports main restricted universe multiverse

apt-get update

3.安装docker

1.安装依赖
apt-get install apparmor -y
2. 在终端中输入如下指令安装最新的docker
wget -qO- https://get.docker.com/ | sh
3.使用docker infor检验是否安装成功。
4.终端中运行命令：docker run hello-world
.

4.更新docker

wget -qO- https://get.docker.com/ | sh

5.卸载docker

1.卸载Docker安装包
apt-get purge lxc-Docker
2.卸载Docker安装包和Docker所有的依赖模块:
apt-get autoremove –purge lxc-Docker
rm -rf /var/lib/Docker

6.配置docker

1.创建Docker组groupadd Dockeruseradd Ubuntuusermod -aG Docker Ubuntu//Ubuntu表示的是用户名2.调整内存和SWAP参数(1)编辑/etc/default/grub文件:(2)修改GRUB_CMDLINE_LINUX参数:   GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"(3)执行update-grub来更新grub;(4)重启系统3.调整UFW(Ubuntu Fire Wall)参数(1)sudo ufw status,确认UFW已经安装并且启用(2)编辑/etc/default/ufw(3)修改DEFAULT_OUTPUT_POLICY="ACCEPT"(4)重新加载   sudo ufw reload(5)允许2375端口可以被外网访问   sudo ufw allow 2375/tcp