Vagrantを使ってみた

◯ Vagrantとは

コレ => Discover Vagrant Boxes | Atlas by HashiCorp

要は仮想環境構築ツール

仮想マシンの作成/OSインストールといった作業も含め、設定管理の自動化を行うことができる。
https://vagrantcloud.com から使いたい Vagrantfile を探して、「vagrant init [使いたいやつ] 」で環境構築が完了しちゃうすぐれもの。

ちなみに自分はboxにコレを使用=> https://vagrantcloud.com/chef/centos-6.5
f:id:mokokko:20140504212222p:plain

テスト環境を構築したい場合や複数人で開発している場合など、
揃えた環境を複数作成したいときに便利。

内部的にはVMを使ったりEC2を使ったりできるみたい。
ちなみに自分はVMで起動。

◯ 実際に導入してみる

vagrant 用のディレクトリ作成して

$ mkdir vagrant/
$ cd vagrant/

Vagrantfileを作成して、ディスクイメージを取得する準備をする

$ vagrant init chef/centos-6.5
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.

ディスクイメージをdownload
vagrant up を打つと、イメージのダウンロードから仮想マシンの起動までやってくれます。

$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Box 'chef/centos-6.5' could not be found. Attempting to find and install...
    default: Box Provider: virtualbox
    default: Box Version: >= 0
==> default: Loading metadata for box 'chef/centos-6.5'
    default: URL: https://vagrantcloud.com/chef/centos-6.5
==> default: Adding box 'chef/centos-6.5' (v1.0.0) for provider: virtualbox
    default: Downloading: https://vagrantcloud.com/chef/centos-6.5/version/1/provider/virtualbox.box
==> default: Successfully added box 'chef/centos-6.5' (v1.0.0) for 'virtualbox'!
==> default: Importing base box 'chef/centos-6.5'...
==> default: Matching MAC address for NAT networking...
==> default: Checking if box 'chef/centos-6.5' is up to date...
==> default: Setting the name of the VM: rails_centos_default_1398300190981_12857
==> 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: Machine booted and ready!
==> default: Checking for guest additions in VM...
    default: The guest additions on this VM do not match the installed version of
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you see
    default: shared folder errors, please make sure the guest additions within the
    default: virtual machine match the version of VirtualBox you have installed on
    default: your host and reload your VM.
    default:
    default: Guest Additions Version: 4.3.8
    default: VirtualBox Version: 4.2
==> default: Mounting shared folders...
    default: /vagrant => /Users/asai.momoko/work/hobby/vagrant/rails_centos

立ち上がった仮想マシンにssh

$ vagrant ssh
Last login: Fri Mar  7 16:57:20 2014 from 10.0.2.2
[vagrant@localhost ~]$

すばらしい