vagrant

https://github.com/mitchellh/vagrant

Ruby

Vagrant is a tool for building and distributing development environments.

Vagrant.configure

Configure a Vagrant environment. The version specifies the version
of the configuration that is expected by the block. The block, based
on that version, configures the environment.

Note that the block isn't run immediately. Instead, the configuration
block is stored until later, and is run when an environment is loaded.

Source | Google | Stack overflow

Edit

git clone [email protected]:mitchellh/vagrant.git

cd vagrant

open lib/vagrant.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Vagrant-configure-for-pr

# Commit to git

git add lib/vagrant.rbgit commit -m "better docs for Vagrant.configure"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Vagrant-configure-for-pr

hub pull-request

# Celebrate!