joomla and zend

[Sander Klein]

Hi,

I'm trying to figure out how use a zend application within a joomla 
website which is not in the document root of a website.

The website is located in /www/customer/some.name and the zend 
application is located in /usr/local/share/web-app (actually 
/usr/local/share/web-app/public). Now what I want is the web-app to be 
accessible using http://some.name/web-app/. I figures I should use 
something like:

location ~ ^/web-app/ {
  alias /usr/local/share/web-app/public;
}

But I cannot get this working. I tried using root instead of alias 
within the location tags but that didn't seem to help. Can anyone give 
me a push in the right direction? The config I use for the joomla site 
is below.

server {
  listen 80;
  listen [::]:80;

  server_name some.name;
  root /www/customer/some.name;

  access_log /var/log/nginx/access_some.log pic buffer=32k;
  error_log /var/log/nginx/error_some.log;

  location / {
   try_files $uri $uri/ /index.php?$query_string;
  }

  location ~ \.php {
   include /etc/nginx/includes.d/php-fpm_www;
   include /etc/nginx/includes.d/fastcgi_params;
   fastcgi_param PHP_VALUE  "include_path=.";
  }
}

greets,

Sander