Multiprocessing on a single heroku dyno

README.md

Run multiple processes on Heroku on a single dyno. Small balls-style.

"If you had enough time to cheat, you had enough time to think about it."

If you deploy this on Heroku, you will see the output of both processes in heroku logs. Yay!

See the Rakefile for the trickery. Credits go here: http://heyman.info/2012/dec/6/heroku-multiple-processes-single-dyno-with-foreman/

a.rb

$stdout.sync = true
loop do
  puts "Process A running"
  sleep 5
end

b.rb

$stdout.sync = true
loop do
  puts "Process B running"
  sleep 5
end

Gemfile

source "http://rubygems.org"

Gemfile.lock

GEM
  remote: http://rubygems.org/
  specs:

PLATFORMS
  ruby

DEPENDENCIES

Procfile

a: ruby a.rb
b: ruby b.rb

Rakefile

task "assets:precompile" do
  require 'fileutils'
  FileUtils.move 'Procfile', 'RealProcfile'
  `gem install foreman`
  File.open('Procfile', 'w') do |f|
    f.write "web: foreman start -f RealProcfile"
  end
end