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HowTos »

LighttpdOnRails » History » Revision 13

Revision 12 (stbuehler, 2009-04-16 10:40) → Revision 13/17 (gross, 2011-08-04 14:47)

h1. Ruby on Rails with Lighttpd 

 h2. Starting the rails application 

 In lighttpd 1.4 you have the option to spawn FastCGI backends from lighttpd with the "bin-path" option; but it is recommend to use [[spawn-fcgi:WikiStart|spawn-fcgi]] for that. 

 Use something like this with daemontools to supervise your rails backends: (./run script, you need a public/dispatch.fcgi for this; most rails applications provide it or an example which you can use) 
 <pre> 
 #!/bin/sh 
 # needs spawn-fcgi version >= 1.6 

 exec 2>&1 

 export RAILS_ENV=production 
 export LANG=en_US.UTF-8 

 # www-data is the user lighty runs as 
 exec /usr/bin/spawn-fcgi -s /var/run/lighttpd/rails-application.sock -n -U www-data -u rails-app-user -- /path/to/rails-application/public/dispatch.fcgi 
 </pre> 

 h2. Lighttpd 1.4 

 Get "cleanurl.lua":http://nordisch.org/cleanurl.lua "cleanurl.lua":http://nordisch.org./cleanurl.lua from http://nordisch.org/; http://nordisch.org./; the file /path/to/rails-application/public/dispatch.fcgi must exist even if you use something else for spawning (or you may need "check-local" => "disable"). 

 *NB*: I had a problem with it, and get error 403 in lighty response. 
 Find this strings in _cleanurl.lua_ 
 <pre> 
 lighty.env["physical.rel-path"] = "/dispatch.fcgi" 
 lighty.env["uri.path"]            = lighty.env["physical.rel-path"] 
 </pre> 
 and *swap* them. Or you will ever get 403, because original request string will be overwritten by modified version. 

 <pre> 
 $HTTP["host"] == "rails-app.example.org" { 
     server.document-root = "/path/to/rails-application/public/" 
     magnet.attract-physical-path-to = ( "/etc/lighttpd/cleanurl.lua" ) 

     fastcgi.server      = ( "dispatch.fcgi" => 
         (( 
             "socket" => "/var/run/lighttpd/rails-application.sock", 
 # if you don't use spawn-fcgi you may try this: 
 #              "bin-path" => "/path/to/rails-application/public/dispatch.fcgi", 
 #              "max-procs" => 1, 
 #              "bin-environment" => ( 
 #                  "RAILS_ENV" => "production", 
 #                  "LANG" => "en_US.UTF-8", 
 #              ), 
 #              "bin-copy-environment" => ( 
 #                  "PATH", 
 #              ), 
         )) 
     ) 
 } 
 </pre> 

 h3. Running rails application in a subdirectory 

 *Warning*: Not every rails application supports this. 

 Lets assume you want to have your blog in http://rails-app.example.org/blog, try this: 
 <pre> 
 $HTTP["host"] == "rails-app.example.org" { 
     $HTTP["url"] =~ "^/blog" { 
         alias.url = ( 
             "/blog" => "/path/to/rails-application/public/", 
         ) 
         server.document-root = "/path/to/rails-application/public/" # needed so cleanurl.lua finds the right dispatch.fcgi 

         magnet.attract-physical-path-to = ( "/etc/lighttpd/cleanurl.lua" ) 

         fastcgi.server      = ( "dispatch.fcgi" => 
             (( 
                 "socket" => "/var/run/lighttpd/rails-application.sock", 
                 "strip-request-uri" => "/blog", 
             )) 
         ) 
     } 
 } 
 </pre> 

 And add this to your rails application config, for example in config/environments/production.rb 
 <pre> 
 config.action_controller.relative_url_root = "/blog" 
 </pre> 

 h2. Lighttpd 1.5 

 Get "cleanurl.lua":http://nordisch.org/cleanurl.lua "cleanurl.lua":http://nordisch.org./cleanurl.lua from http://nordisch.org/. See _nota bene_ above. http://nordisch.org./. 

 <pre> 
 $HTTP["host"] == "rails-app.example.org" { 
     server.document-root = "/path/to/rails-application/public/" 
     magnet.attract-physical-path-to = ( "/etc/lighttpd/cleanurl.lua" ) 

     $HTTP["url"] == "/dispatch.fcgi" { 
         proxy-core.backends = ( "unix:/var/run/lighttpd/rails-application.sock" ) 
         proxy-core.protocol = "fastcgi" 
         proxy-core.allow-x-sendfile = "enable" 
     } 
 } 
 </pre> 

 h2. Using RubyOnRails in a simple-vhost environment 


 Let's say: For an easy setup you want to use [[lighttpd:Docs:ModSimpleVhost|simple-vhost]] but still want to separate the rails-installation: 

 <pre> 
 $HTTP["host"] == "ruby.example.org" { 
     server.document-root = "/var/www/site/public/" 
     fastcgi.server = ... 
 } 
 else $HTTP["host"] =~ "" { 
     simple-vhost.server-root = "/var/www/servers/" 
     simple-vhost.default-host = "www.example.org" 
     simple-vhost.document-root = "pages" 
 } 
 </pre>