How to create your own testing environment using the command line tool Vagrant

My name is Ito and I am an infrastructure engineer

It's common knowledge that you can't just casually touch a customer's environment.
Normally, you would prepare a similar testing environment and test it there, but if
you tamper with the production environment and something happens, you're not qualified to be an infrastructure engineer!

The tool I'd like
to introduce this time, " Vagrant is a tool that allows you to easily create a virtual testing environment, which can be a pain to set up!

What is Vagrant?

Vagrant is a command line tool that specializes in efficiently creating and operating virtual machine (VM) environments and works in conjunction with various virtualization software such as VirtualBox, VMware, and AWS (EC2)

This time we will install Vagrant using VirtualBox

procedure

Let's install Vagrant

Installing VirtualBox

Vagrant requires software called VirtualBox, which can run a virtual OS on an OS

Download VirtualBox from the following website:
Downloads – Oracle VM VirtualBox

If you follow the instructions in the installer, you should be fine.
If you're unsure about the installation process, please refer to the following website:
Installing VirtualBox on Windows | VirtualBox Mania

Installing Vagrant

Next, install Vagrant.
Download it from the following site:
Download - Vagrant by HashiCorp

As with VirtualBox, if you are unsure about the installation procedure, please refer to the following website:
How to install Vagrant on Windows | WEB ARCH LABO

After installation, try entering the following command at the command prompt.
The Vagrant version should be displayed.

C:Userstest>vagrant --version Vagrant 1.7.4

Try setting up a virtual environment

Let's actually use Vagrant to set up a virtual environment.
Vagrant downloads a disk image called a "box" and
creates the box file as a virtual environment according to a configuration file.

Box files can be obtained from the following sources:
Official: Discover Vagrant Boxes | Atlas by HashiCorpUnofficial
: A list of base boxes for Vagrant - Vagrantbox.esIn
practice, you will probably use the unofficial vagrantbox.es more often.

By the way, you can also create your own box file

First, download the box file

vagrant box add <box name> <box URL>

It will look something like this. Download the centos7 box file named centos70

$ vagrant box add centos70 https://github.com/tommy-muehle/puppet-vagrant-boxes/releases/download/1.1.0/centos-7.0-x86_64.box ==> box: Box file was not detected as metadata. Adding it directly... ==> box: Adding box 'centos70' (v0) for provider: box: Downloading: https://github.com/tommy-muehle/puppet-vagrant-boxes/releases/download/1.1.0/centos-7.0-x86_64.box box: ==> box: Successfully added box 'centos70' (v0) for 'virtualbox'!

Check if the box is downloaded

$ vagrant box list centos70 (virtualbox, 0)

You can confirm that a box named "centos70" has been downloaded

Next, create a definition file based on the box.
This definition file will be used to launch the virtual server.

$ vagrant init centos70 A `Vagrantfile` has been placed in this directory. You are now ready to `vagrant up` your first virtual environment! Please read the comments in the Vagrantfile as well as documentation on `vagrantup.com` for more information on using Vagrant.

A definition file called "Vagrantfile" will be created in the current directory.
By configuring this definition file, you can set various settings and launch a virtual server.

Now, let's finally start up the virtual server.
It will start up by reading the settings in the Vagrantfile.

$ vagrant up Bringing machine 'default' up with 'virtualbox' provider... ==> default: Importing base box 'centos70'... ==> default: Matching MAC address for NAT networking... ==> default: Setting the name of the VM: centos7_default_1455040381652_22475 ==> default: Clearing any previously set forwarded ports... ==> default: Clearing any previously set network interfaces... ==> default: Preparing network interfaces based on configuration... default: Adapter 1: nat ==> default: Forwarding ports... default: 22 => 2222 (adapter 1) ==> default: Booting VM... ==> default: Waiting for machine to boot. This may take a few minutes... default: SSH address: 127.0.0.1:2222 default: SSH username: vagrant default: SSH auth method: private key default: Warning: Connection timeout. Retrying... default: Warning: Connection timeout. Retrying... default: default: Vagrant insecure key detected. Vagrant will automatically replace default: this with a newly generated keypair for better security. default: default: Inserting generated public key within guest... default: Removing insecure key from the guest if it's present... default: Key inserted! Disconnecting and reconnecting using new SSH key... ==> default: Machine booted and ready! ==> default: Checking for guest additions in VM... ==> default: Mounting shared folders... default: /vagrant => D:/system/cygwin64/home/itou/centos7

Let's try connecting

$ vagrant ssh Last login: Sat May 30 12:27:44 2015 from 10.0.2.2 Welcome to your Vagrant-built virtual machine. [vagrant@localhost ~]$

Done!

In addition to the commands mentioned above, the following are some commonly used commands:

#Stop Vagrant vagrant halt #Reload Vagrantfile (restart) vagrant reload #Destroy Vagrant (discard the created virtual server) vagrant destroy #Check Vagrant status vagrant status

summary

That's it, a simple way to build a testing environment using Vagrant!
The most time-consuming part is just downloading the box file.

I think your company has default settings on the server.
You can also create a box file with the virtual environment with those settings, so you
don't have to perform the same operations for each testing environment.

Additionally, using Vagrantfile
makes it easy to set up port forwarding, private IP addresses, and launch multiple virtual environments.
If you can master these features, you should be able to easily build even complex environments.

We hope you will use Vagrant to enjoy building a great testing environment!

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