Passenger
Reference website: http://www.modrails.com/documentation/Users%20guide.html
Phusion Passenger is an Apache module for deploying Rack applications. Because Merb is built on Rack, you can easily run it on Passenger and Ruby Enterprise Edition. Ruby Enterprise Edition is a version of Ruby 1.8.6 with improvements to Ruby’s garbage collection, which can typically reduce an application’s memory footprint by 33%. The following instructions are for Linux.
Installing Ruby Enterprise Edition (REE)
Ruby Enterprise Edition can be installed alongside a version of Ruby you currently have installed, as it will be installed into the /opt directory.
Note: You will need to have the development readline libraries installed if you want run Merb interactively.
Download REE
$ wget http://rubyforge.org/frs/download.php/41040/ruby-enterprise-1.8.6-20080810.tar.gzInstall
$ tar xzvf ruby-enterprise-1.8.6-20080810.tar.gz
$ cd ruby-enterprise-1.8.6-20080810
$ ./installerInstalling Passenger
$ gem install passenger
$ passenger-install-apache2-moduleConfiguration
config.ru
The following file needs to be placed into your Merb application’s root directory:
# config.ru
require 'rubygems'
# Uncomment if your app uses bundled gems.
# gems_dir = File.expand_path(File.join(File.dirname(__FILE__), 'gems'))
# Gem.clear_paths
# $BUNDLE = true
# Gem.path.unshift(gems_dir)
require 'merb-core'
Merb::Config.setup(:merb_root => File.expand_path(File.dirname(__FILE__)),
:environment => ENV['RACK_ENV'])
Merb.environment = "production" #Merb::Config[:environment]
Merb.root = Merb::Config[:merb_root]
Merb::BootLoader.run
# Uncomment if your app is mounted at a suburi.
# if prefix = ::Merb::Config[:path_prefix]
# use Merb::Rack::PathPrefix, prefix
# end
run Merb::Rack::Application.new