[LINUX] How to build two CentOS7 environments / Windows10 + VirtualBox + Vagrant


In this article, I will explain the procedure to build two virtual machines ** CentOS 7 ** on ** Windows 10 ** using VirtualBox and Vagrant.


--Host OS: Windows10 --Guest OS: 2 CentOS7 (client, server) --Virtual machine construction tool: VirtualBox, Vagrant

About how to build an environment

To build the environment, use a method that combines ** Virtual Box ** and ** Vagrant **.

The reason for using Vagarnt is that you can easily set up the network and build a virtual machine just by operating commands and setting necessary files on the command prompt without touching VirtualBox directly.

After building the environment, you can connect to the virtual machine by SSH connection from the command prompt and operate Linux commands. Of course, it is also possible to make an SSH connection using TeraTerm or PuTTY.


Download and install VirtualBox (Windows version)

Download the latest version of VirtualBox from the URL below. https://www.virtualbox.org/wiki/Downloads

After downloading, install it on your PC.

Download & install Vagrant (Windows version)

Download the latest version of Vagrant from the URL below. https://www.vagrantup.com/downloads.html

After downloading, install it on your PC. When the installation is complete, open a command prompt and type the following command. Installation is complete when the installed vagrant version is displayed.

command prompt

C:¥>vagrant -v
Vagrant 2.2.10

Procedure for building two CentOS7 environments

Creating a Vagrantfile

Type the vagrant init command in any directory to create a Vagrantfile.

command prompt

D:\hoge>vagrant init

2020/10/20  18:25             3,080 Vagrantfile

Editing Vagrantfile

Edit the Vagrantfile as follows.


# -*- 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"

  config.vm.define :client do | client |
    client.vm.hostname = "client"
    client.vm.network :private_network, ip: ""

  config.vm.define :server do | server |
    server.vm.hostname = "server"
    server.vm.network :private_network, ip: ""


Building a virtual machine

After editing the Vagrantfile, type the vagrant up command and two CentOS 7s will be created in about 2-3 minutes.

command prompt

D:\hoge>vagrant up --provider=virtualbox
Bringing machine 'client' up with 'virtualbox' provider...
Bringing machine 'server' up with 'virtualbox' provider...
==> client: Importing base box 'centos/7'...
==> client: Matching MAC address for NAT networking...
==> client: Checking if box 'centos/7' version '1905.1' is up to date...
~~~ Omitted ~~~
==> server: Setting hostname...
==> server: Configuring and enabling network interfaces...
==> server: Rsyncing folder: /cygdrive/d/hoge/ => /vagrant

Checking the startup status of the virtual machine

You can check the status of the virtual machine with the vagrant status command. If it is running, the startup is successful.

command prompt

D:\hoge>vagrant status
Current machine states:

client                    running (virtualbox)
server                    running (virtualbox)

This environment represents multiple VMs. The VMs are all listed
above with their current state. For more information about a specific
VM, run `vagrant status NAME`.

Connect to virtual machine

Use the vagrant ssh command to connect to the built virtual machine. The default password for root privileges is vagrant. I was able to SSH into the CentOS environment from the command prompt as shown below.

command prompt

D:\hoge>vagrant ssh client
[vagrant@client ~]$
[vagrant@client ~]$ su -
[root@client ~]#
[root@client ~]# cat /etc/centos-release
CentOS Linux release 7.6.1810 (Core)

that's all.

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