Deploy Sinatra app on Heroku

Question

I have simple Sinatra app.

web.rb:

require \'sinatra\'

get \'/\' do 
    \"Hello\" 
end

Gemfile:*

Answer 1

You need a Procfile file alongside your config.ru to tell Heroku how to run your app. Here is the content of an example Procfile:

web: bundle exec ruby web.rb -p $PORT

Heroku Ruby docs on Procfiles

EDIT: Here's a sample config.ru from one of my sinatra/Heroku apps:

$:.unshift File.expand_path("../", __FILE__)
require 'rubygems'
require 'sinatra'
require './web'
run Sinatra::Application

You may need to require sinatra and rubygems for it to work.