一、vagrant安装
1、访问Vagrant官网
2、点击Download
选择对应的版本
3、傻瓜式安装
一直点下一步，下一步即可。完成安装。
4、测试是否安装成功
输入命令 vagrant
vagrant
二、virtualbox安装
1、访问官网
2、选择对应的版本
3、傻瓜式安装
一直点下一步即可。我在安装的过程中，出现了一个严重错误，导致安装失败。如果你也是的话，可以参考下面这篇文章。
https://blog.csdn.net/weixin_45119323/article/details/111321589
三、安装centos7
1、创建centos7文件夹
2、命令行进入centos7
打开cmd进入centos7文件夹里。执行 vagrant init centos/7 命令
vagrant init centos/7
打开文件夹，会发现文件夹里新生成了一个Vagrantfile文件
3、创建virtualbox.box文件
新建一个virtualbox.box文件，可以直接从以下网盘下载。
链接：https://pan.baidu.com/s/1Cy7YUlOtzRYlKcQtoaJE5Q
提取码：ddt7
4、将virtualbox.box文件添加到vagrant管理的镜像中
执行命令 vagrant box add centos/7 D:\virtualbox.box
//后面是virtualbox.box在磁盘中的路径
vagrant box add centos/7 D:\virtualbox.box
查看是否添加成功
vagrant box list
5、开启centos虚拟机
在之前创建的centos7文件夹打开cmd命令行。开启centos虚拟机
vagrant up 启动
vagrant halt 关闭
如果你执行vagrant up 命令报错，可看下面这篇文章
https://blog.csdn.net/weixin_45119323/article/details/111355451
6、修改Vagrantfile
# -*- mode: ruby -*-
# vi: set ft=ruby :
# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
# The most common configuration options are documented and commented below.
# For a complete reference, please see the online documentation at
# https://docs.vagrantup.com.
# Every Vagrant development environment requires a box. You can search for
# boxes at https://vagrantcloud.com/search.
config.vm.box = "centos/7"
# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
# NOTE: This will enable public access to the opened port
# config.vm.network "forwarded_port", guest: 80, host: 8080
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine and only allow access
# via 127.0.0.1 to disable public access
# config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# config.vm.network "private_network", ip: "192.168.33.10"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
config.vm.network "public_network"
# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"
# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
# config.vm.provider "virtualbox" do |vb|
# # Display the VirtualBox GUI when booting the machine
# vb.gui = true
#
# # Customize the amount of memory on the VM:
# vb.memory = "1024"
# end
config.vm.provider "virtualbox" do |vb|
vb.memory = "4000"
vb.name= "jack-centos7"
vb.cpus= 2
end
#
# View the documentation for the provider you are using for more
# information on available options.
# Enable provisioning with a shell script. Additional provisioners such as
# Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
# documentation for more information about their specific syntax and use.
# config.vm.provision "shell", inline: <<-SHELL
# apt-get update
# apt-get install -y apache2
# SHELL
end
修改后，执行vagrant halt关闭虚拟机，然后再执行vagrant up重启一下。
vagrant reload 用来刷新
7、vagrant 相关命令
(1)vagrant ssh
进入刚才创建的centos7中
(2)vagrant status
查看centos7的状态
(3)vagrant halt
停止/关闭centos7
(4)vagrant destroy
删除centos7
(5)vagrant status
查看当前vagrant创建的虚拟机
四、使用Xshell连接虚拟机
1、下载安装XShell
下载安装Xshell，或者其他的远程连接软件，这里不作概述
2、使用默认账号登录
在centos文件夹下执行vagrant ssh-config
3、使用root账户登录
1、vagrant ssh 进入到虚拟机中
2、sudo -i 转为root账户
3、vi /etc/ssh/sshd_config 进入文件
4、 修改PasswordAuthentication yes
5、 passwd修改密码，比如abc123
6、 systemctl restart sshd 刷新
7、 使用账号root，密码abc123进行登录
主机号就是这个，看看自己的地址是多少
五、安装Docker
1、 进入centos7
vagrant ssh
2、卸载之前的docker
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
3、安装必要的依赖
sudo yum install -y yum-utils \
device-mapper-persistent-data \
lvm2
4、 设置docker仓库
sudo yum-config-manager
–add-repo
https://download.docker.com/linux/centos/docker-ce.repo
访问这个地址，使用自己的阿里云账号登录，查看菜单栏左下角，发现有一个镜像加速器:https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors
05 安装docker
sudo yum install -y docker-ce docker-ce-cli containerd.io
06 启动docker
sudo systemctl start docker
设置开机启动
sudo systemctl enable docker
07 测试docker安装是否成功
sudo docker run hello-world
大功告成。