mail_daemon.rb

require 'rubygems'
require 'daemons'
#require File.join(File.dirname(__FILE__), 'daemons_extension')

ENV['RAILS_ENV'] ||= 'development'
ENV['BUNDLE_GEMFILE'] ||= File.join(Dir.pwd, 'Gemfile')

options = {
  :app_name  => 'mail_consumer',
  :dir_mode  => :script,
  :dir       => '../log',
  :backtrace => true,
  :mode      => :load,
  :monitor   => true
}

Daemons.run(File.join(File.dirname(__FILE__), 'mail_consumer.rb'), options)