Phusion Passenger - a.k.a. mod_rails or mod_rack - makes deployment of
Ruby web applications, such as those built on the revolutionary Ruby on
Rails web framework, a breeze. It follows the usual Ruby on Rails
conventions, such as "Don't-Repeat-Yourself".
 * Deployment is only a matter of uploading application files.
   No Ruby (on Rails)-specific server configuration required!
 * Supports both the industry standard Apache web server and the fast
   and lightweight Nginx web server.
 * Allows Ruby on Rails applications to use about 33% less memory, when
   used in combination with Ruby Enterprise Edition (optional).
 * Zero maintenance. No port management, server process monitoring or
   stale file cleanup required. Errors are automatically recovered
   whenever possible.
 * Designed for performance, stability and security. Phusion Passenger
   should never crash Apache even in case of crashing Rails applications
 * Well-documented, for both system administrators and developers!

1. сборочные зависимости:
   1. apache2-devel
   2. apache2-devel >= 2.2.5
   3. apache2-httpd-worker
   4. libruby-devel
   5. libssl-devel
   6. gcc-c++
   7. libcrypto7
   8. libcurl-devel
   9. ruby-rack
   10. ruby-rake
   11. rubygems
   12. rpm-build-ruby
   13. zlib-devel
   14. rpm-macros-apache2
   15. libapr1-devel
   16. libaprutil1-devel