Vagrant在虚拟机Centos7上安装Docker

参考Docker官方文档：https://docs.docker.com/install/linux/docker-ce/centos/；

卸载旧版本docker

$ sudo yum remove docker 
                  docker-client 
                  docker-client-latest 
                  docker-common 
                  docker-latest 
                  docker-latest-logrotate 
                  docker-logrotate 
                  docker-engine

安装Docker CE

安装需要的包

$ sudo yum install -y yum-utils 
  　　device-mapper-persistent-data 
  　　lvm2

安装repo

$sudo yum-config-manager 
    --add-repo 
    https://download.docker.com/linux/centos/docker-ce.repo

安装DockerCE

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

运行Docker

$ sudo systemctl start docker
$ sudo docker version

修改vagrant box默认保持路径

add box的时候默认保存在 C:Usersxxx.vagrant.d

 VAGRANT_HOME can be set to change the directory where Vagrant stores global state. By default, this is set to ~/.vagrant.d. The Vagrant home directory is where things such as boxes are stored, so it can actually become quite large on disk.

 如果要节省C盘空间，通过设置VAGRANT_HOME环境变量改变默认位置

setx VAGRANT_HOME "X:/your/path"

setx VAGRANT_HOME "X:/your/path" /M （系统变量）