I have been learning Ruby lately, and I want to upload a test web application to my server. But I can't figure out how to get it to run on my shared hosting.

My Hosting Details

• Shared Hosting with JustHost (see here for list of features)
• OS: Linux
• Apache: 2.2.11
• cPanel: 11.25.0-STABLE
• No SSH access.
• Can install Ruby Gems.
• Can't install Apache modules.
• Can "Manage Ruby on Rails Applications" through cPanel.
• Mongrel gem is installed.

I built the following simple HelloWorld Ruby Rack app using Sinatra:

#!/usr/bin/ruby ruby
require 'rubygems'
require 'sinatra'
get '/hi' do
  "Hello World!"
end

I just can can't figure out how to "start" the application. Do I need to tell Mongrel (or maybe Apache) that the application exists somehow? How do I start this app running? I am happy to provide more info if needed.