View source for Software:Phusion Passenger

{{short description|Open-source web server software}}
{{Infobox software
| name                   = Phusion Passenger
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| author                 = 
| developer              = Phusion
| released               = <!-- {{Start date|YYYY|MM|DD|df=yes/no}} -->
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| latest release version = {{wikidata|property|edit|reference|P348}}
| latest release date    = {{start date and age|{{wikidata|qualifier|P348|P577}}}}
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| latest preview date    = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} -->
| frequently updated     = <!-- DO NOT include this parameter unless you know what it does -->
| programming language   = [[C++]] and Ruby<ref>{{cite web|url=https://www.phusionpassenger.com/library/indepth/lightweight_ruby_dependency.html |title=Passenger Library, In-depth: Lightweight Ruby dependency
 |publisher=Phusion |access-date=2016-07-14}}</ref>
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| license                = [[Software:MIT License|MIT License]]
| website                = {{Official URL}}
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'''Phusion Passenger''' (informally also known as '''mod_rails''' and '''mod_rack''' among the Ruby community) is a [[Free software|free]] [[Web server|web server]] and [[Application server|application server]] with support for [[Ruby (programming language)|Ruby]], [[Python (programming language)|Python]] and [[Software:Node.js|Node.js]]. It is designed to integrate into the [[Software:Apache HTTP Server|Apache HTTP Server]] or the [[Software:Nginx|nginx]] web server, but also has a mode for running standalone without an external web server.<ref name=theh>{{cite web|title=Phusion Passenger goes fourth|url=http://www.h-online.com/open/news/item/Phusion-Passenger-goes-fourth-1858497.html|publisher=The H|access-date=26 February 2015}}</ref> Phusion Passenger supports [[Unix-like]] operating systems, and is available as a [[Software:RubyGems|gem package]], as a tarball, or as native Linux packages.

Originally designed for web applications built on the [[Software:Ruby on Rails|Ruby on Rails]] framework, it was later extended to support arbitrary Ruby web frameworks through the Rack interface. Later versions also added support for Python through [[Web Server Gateway Interface|the WSGI interface]], as well as support for Node.js.<ref>{{cite web|url=https://github.com/phusion/passenger/wiki/Node.js |title=Phusion Passenger Node.js quickstart |publisher=Phusion |access-date=2013-07-15}}</ref> In 2012, Phusion announced [https://www.phusionpassenger.com Phusion Passenger Enterprise], a paid, commercial variant of Phusion Passenger with "a wide array of premium features".<ref>{{cite web|url=http://blog.phusion.nl/2012/08/01/phusion-passenger-enterprise-released/ |title=Phusion Passenger Enterprise released |publisher=Phusion |date=2012-08-01 |access-date=2013-07-15}}</ref> Phusion has stated that the open source variant will continue to be developed and maintained along with the Enterprise variant.

Phusion Passenger was the "preferred deployment setup" for Ruby on Rails applications in 2016,<ref>{{cite web |url=http://rubyonrails.org/deploy |title=Deploy |publisher=Ruby on Rails |access-date=2016-01-02 |url-status=dead |archive-url=https://web.archive.org/web/20160102082737/http://rubyonrails.org/deploy |archive-date=2016-01-02 }}</ref> and has been recommended by the Ruby on Rails authors in 2009.<ref>{{cite web |url=http://www.loudthinking.com/posts/30-myth-1-rails-is-hard-to-deploy |title=Myth #1: Rails is hard to deploy |publisher=Loudthinking.com |date=2008-11-13 |access-date=2009-07-03 |url-status=dead |archive-url=https://web.archive.org/web/20110424162043/http://www.loudthinking.com/posts/30-myth-1-rails-is-hard-to-deploy |archive-date=2011-04-24 }}</ref><ref>{{cite web |url=http://www.koziarski.net/archives/2008/4/26/now-running-on-passenger |title=Koz Speaks — Random Musings on Technology |publisher=Koziarski.net |access-date=2009-07-03 |url-status=dead |archive-url=https://web.archive.org/web/20120723171551/http://www.koziarski.net/archives/2008/4/26/now-running-on-passenger/ |archive-date=2012-07-23 }}</ref> In 2013, in combination with Ruby 2.0, or with the now-discontinued [http://www.rubyenterpriseedition.com Ruby Enterprise Edition], Phusion Passenger claimed that it was capable of reducing Rails's memory consumption by 33% as well as increasing its performance.<ref>{{cite web|url=http://www.rubyenterpriseedition.com/comparisons.html |title=Performance and memory usage comparisons — Ruby Enterprise Edition |publisher=Rubyenterpriseedition.com |access-date=2013-07-15}}</ref>

== Market share ==
As of Aug 2021 more than 130,000 web sites use Phusion Passenger.
<ref>{{Cite web |title=Phusion Passenger usage statistics |url=https://webtechsurvey.com/technology/phusion-passenger |access-date=2021-08-24 |website=webtechsurvey.com}}</ref>

==See also==
* [[Software:Mod ruby|mod ruby]]
* {{slink|List of application servers#Ruby}}

==References==
{{Reflist}}

==External links==
* [https://www.phusionpassenger.com/enterprise Phusion Passenger Enterprise]
* {{GitHub|phusion/passenger}}
* [http://rack.rubyforge.org/ Rack] {{Webarchive|url=https://web.archive.org/web/20170413070356/http://rack.rubyforge.org/ |date=2017-04-13 }}
* [http://www.rubyenterpriseedition.com/ Ruby Enterprise Edition]

{{Web interfaces}}
{{Ruby programming language}}

[[Category:Free software programmed in C++]]
[[Category:Web server software for Linux]]

{{Sourceattribution|Phusion Passenger}}