Please note this VM is not designed for Rails application development, only Rails core development.

This project automates the setup of a development environment for working on Ruby on Rails itself. Use this virtual machine to work on a pull request with everything ready to hack and run the test suites.

• VirtualBox

• Vagrant

Building the virtual machine is this easy:

host $ git clone https://github.com/rails/rails-dev-box.git host $ cd rails-dev-box host $ vagrant up 

That's it.

After the installation has finished, you can access the virtual machine with

host $ vagrant ssh Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-36-generic i686) ... vagrant@rails-dev-box:~$ 

Port 3000 in the host computer is forwarded to port 3000 in the virtual machine. Thus, applications running in the virtual machine can be accessed via localhost:3000 in the host computer.

• Development tools

• Git

• Ruby 2.1

• Bundler

• SQLite3, MySQL, and Postgres

• Databases and users needed to run the Active Record test suite

• System dependencies for nokogiri, sqlite3, mysql, mysql2, and pg

• Memcached

• Redis

• RabbitMQ

• An ExecJS runtime

The recommended workflow is

• edit in the host computer and

• test within the virtual machine.

Just clone your Rails fork into the rails-dev-box directory on the host computer:

host $ ls README.md Vagrantfile puppet host $ git clone [email protected]:<your username>/rails.git 

Vagrant mounts that directory as /vagrant within the virtual machine:

vagrant@rails-dev-box:~$ ls /vagrant puppet rails README.md Vagrantfile 

Install gem dependencies in there:

vagrant@rails-dev-box:~$ cd /vagrant/rails vagrant@rails-dev-box:/vagrant/rails$ bundle 

We are ready to go to edit in the host, and test in the virtual machine.

This workflow is convenient because in the host computer you normally have your editor of choice fine-tuned, Git configured, and SSH keys in place.

When done just log out with ^D and suspend the virtual machine

host $ vagrant suspend 

then, resume to hack again

host $ vagrant resume 

Run

host $ vagrant halt 

to shutdown the virtual machine, and

host $ vagrant up 

to boot it again.

You can find out the state of a virtual machine anytime by invoking

host $ vagrant status 

Finally, to completely wipe the virtual machine from the disk destroying all its contents:

host $ vagrant destroy # DANGER: all is gone 

Please check the Vagrant documentation for more information on Vagrant.

The default mechanism for sharing folders is convenient and works out the box in all Vagrant versions, but there are a couple of alternatives that are more performant.

Vagrant 1.5 implements a sharing mechanism based on rsync that dramatically improves read/write because files are actually stored in the guest. Just throw

config.vm.synced_folder '.', '/vagrant', type: 'rsync' 

to the Vagrantfile and either rsync manually with

vagrant rsync 

or run

vagrant rsync-auto 

for automatic syncs. See the post linked above for details.

If you're using Mac OS X or Linux you can increase the speed of Rails test suites with Vagrant's NFS synced folders.

With a NFS server installed (already installed on Mac OS X), add the following to the Vagrantfile:

config.vm.synced_folder '.', '/vagrant', type: 'nfs' config.vm.network 'private_network', ip: '192.168.50.4' # ensure this is available 

Then

host $ vagrant up 

Please check the Vagrant documentation on NFS synced folders for more information.

Released under the MIT License, Copyright (c) 2012–ω Xavier Noria.