How to install symfony2 app in a subdirectory in nginx

After hours spended to find this (sf2 doc doesn't explain how cgi parameters are needed and interpreted, you need to go through Request.php to understand), so I share this.

This is a config which seems ok with sf2 in a directory {subdir} (and web access to others files than {subdir}/web/* prohibited).

It works for me with php-fpm (socket).

Of course, replace "{subdir}" by your /path/from/docroot/to/symfony_root/

dev environnement can be choosen by adding "dev" to "{subdir}" (since app_dev.php in the url no longer works with this conf)

server {  # general directives  location ~ ^/{subdir}(/.*)$ {       try_files /{subdir}/web$1 @sf2;  }  location ~ ^/{subdir}dev(/.*)$ {    expires off;    try_files /{subdir}/web$1 @sf2dev;  }  location @sf2 {    expires off;    fastcgi_pass   {your backend};    include fastcgi_params;    fastcgi_param SCRIPT_FILENAME $document_root/{subdir}/web/app.php;    fastcgi_param SCRIPT_NAME       /{subdir}/app.php;    fastcgi_param REQUEST_URI       /{subdir}$1;  }  location @sf2dev {    expires off;    fastcgi_pass   {your backend};    include fastcgi_params;    fastcgi_param SCRIPT_FILENAME $document_root/{subdir}/web/app_dev.php;       fastcgi_param SCRIPT_NAME       /{subdir}dev/app_dev.php;           fastcgi_param REQUEST_URI       /{subdir}dev$1;       }  # other location directives  # if some others apps needs php, put your usual location to cactch php here}

I Hope it helps (and there isn't any misconfiguration), given without any guarantee...

Of course you can pick out prod/dev conf if you don't need. And you can use var and only one @sf2 location instead :

  set $sf2_root /{subdir};  location ~ ^/{subdir}(/.*)$ {       set $sf2_prefix /{subdir};      set $sf2_ctrl app.php;    try_files $sf2_root/web$1 @sf2;  }  location ~ ^/{subdir}dev(/.*)$ {    set $sf2_prefix /{subdir}dev;    set $sf2_ctrl app_dev.php;    expires off;    try_files $sf2_root/web$1 @sf2;  }  location @sf2 {    expires off;    fastcgi_pass   {your backend};    include fastcgi_params;    fastcgi_param SCRIPT_FILENAME $document_root$sf2_root/web/$sf2_ctrl;    fastcgi_param SCRIPT_NAME       $sf2_prefix/$sf2_ctrl;    fastcgi_param REQUEST_URI       $sf2_prefix$1;  }

Here is a simpler configuration for symfony2 on the "/front/" subdirectory.Route generation and assets work fine.

The configuration

set $frontRoot /your/project/path/web;set $sfApp app_dev.php; # Change to app.php for prodlocation /front/ { # Static files    root $frontRoot;    rewrite ^/front/(.*)$ /$1 break;    try_files $uri @sfFront;}location @sfFront { # Symfony    fastcgi_pass phpfcgi;    include fastcgi_params;    fastcgi_param SCRIPT_FILENAME $frontRoot/$sfApp;    fastcgi_param SCRIPT_NAME /front/$sfApp;    fastcgi_param REQUEST_URI /front$uri?$args;    fastcgi_param HTTPS off;}

Some explanation

The trick is to make symfony believe app.php script is in /front/, so it generates routes and assets with this path.

I looked at what apache was giving to MOD-PHP to use the same values.

• SCRIPT_FILENAME: The absolute path to the PHP file. Here, it is always /your/project/path/app_dev.php
• REQUEST_URI: The URI the user entered. Here, we have to manually re-add /front at the begining of the path as it was removed by the file serving location (via rewrite ^/front/(.*)$ /$1 break;)
• SCRIPT_NAME: The value is /front/app_dev.php. This is the most important part. Symfony will cut app_dev.php and prepend /front to all its routes.