Apache + passenger

http://www.railsgarden.com/2008/04/12/configurating-passenger-mod_rails-on-slicehost-with-ubuntu-710/

install passenger

sudo gem install pog passenger
sudo passenger-install-apache2-module

vi /etc/apache2/sites-available/www.test.com

LoadModule passenger_module /usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/ext/apache2/mod_passenger.so
LoadModule deflate_module /usr/lib/apache2/modules/mod_deflate.so
PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-2.0.3
PassengerRuby /usr/bin/ruby1.8

DeflateCompressionLevel 3
<IfModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/html text/css text/javascript application/x-javascript application/javascript
</IfModule>

ServerName 127.0.0.1
NameVirtualHost *

<VirtualHost *>
  ServerName 221.130.181.158
  <Location />
    Order Allow,Deny
    Deny from all
  </Location>
</VirtualHost>

<VirtualHost *>
  ServerAdmin www.test.com
  ServerName test.com
  DocumentRoot "~/test/public/"
  <Directory "~/test/public/">
    AllowOverride none
  </Directory>
</VirtualHost>