Instructions for that can be found at: www.virtualbox.org/wiki/Downloads
gem "rails-up", "~> 0.0.1"
$ rails-up help Components: rvm # Provisions Vagrant boxes with RVM for managing Rubies system-wide and per-user postgresql # Installs PostgreSQL and adds a default user "vagrant" with the password "vagrant" nginx # Installs Nginx and forwards the port to http://localhost:5678/ ...
$ rails-up init rvm postgresql nginx thin
$ vagrant up
Sip some coffee and wait. Visit localhost:5678/ and rejoice.