Tip

• 将用户加入docker用户组，可以省去每次sudo

$ sudo usermod -aG docker yourname
$ exit（需要重新进入terminal才生效）

目标

• 拥有一个Docker的实验环境

centos安装docker

基础环境，推荐 vagrant + virtual box ☆☆☆☆☆

Docker文档

Uninstall old versions

# sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

Install using the repository

Set up the repository

# sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2
  
 # sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

Install Docker CE

$ sudo yum install docker-ce docker-ce-cli containerd.io

start docker

# systemctl start docker 
# docker version

修改Docker源

$ sudo vim /etc/docker/daemon.json //没有的话就创建

{ 
"registry-mirrors": ["http://hub-mirror.c.163.com"] 
}