Getting started with the Ruby on Rails InstantApp

Ruby on Rails InstantApp - Overview

The intended audience of this image is Rails developers who want to bootstrap or test a Rails application easily, in seconds.

Common packages have been installed:

  • Nginx
  • Ruby
  • RVM
  • Rails
  • Unicorn
  • Node.js


Create and start a new instance using the Ruby on Rails InstantApp

Before starting, click the “Create a Server” button in the control panel.

Control Panel

You will land on the server-creation page where you can choose the Ruby on Rails image in the InstantApps tab for your Cloud Instance:

Control Panel

Choose the server type and click on the Create a Server button. This action starts your server.

Run a Ruby on Rails web application

Log-in to your server with the following command:

$> ssh  -i /path/to/key root@<your_server_ip>

Once connected to the server, log-in as rails user:

$> su rails
$> source /etc/profile

In the home directory of rails user /home/rails, you will find the default directory containing a fresh rails application. You can use it to bootstrap your rails project.

Unicorn is configured to serve the default Rails application in /home/rails/default.

You can access the Rails application via your browser at http://your_server_ip to view the default app website!

If you want to create a new Rails application, you will have to perform some actions to get it running with unicorn:

Create a new Rail application

$> rails new yourapplicationname


$> rake -f /home/rails/yourapplicationame/Rakefile secret

Edit Unicorn configuration

Open the file /etc/default/unicorn to change the working directory and SECRET_KEY_BASE.

Set application working directory to APP_ROOT=/home/rails/yourapplicationame and SECRET_KEY_BASE value to the key generated previously.

Then in /etc/unicorn.conf change the working_directory value to /home/rails/yourapplicationame.

Restart Unicorn as root user and you can open your browser and visit your IP to view your super new application!

$> service unicorn restart


Useful links:

This image doesn’t contain databases, because we can’t really know which one you prefer.

To install MySQL, run:

$> apt-get install mysql-server

And/or PostgreSQL:

$> apt-get install postgresql


If you think something is missing in this image, or if it would have been easier if you had this or that tool, or if thisshould be configured that way instead of how it currently is, we'd love to hear from you!

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