Directory based virtual host proxy

Server NGINX
1

I would like to have several rails applications behind the same domain
name.

For example:
my.domain.com/application_1
my.domain.com/application_2
my.domain.com/application_3

These then need to be directed to the appropriate mongrel server. My
current config below would work fine if I had application1.domain.com,
application2.domain.com etc. But I can’t seem to find an example of how
to
use the same domain with different apps.

Any hints would be appreciated.

My curent config:

upstream rails {
server 127.0.0.1:8050;
server 127.0.0.1:8051;
}

#Rails App here
server {
listen 80;
server_name rails.softwyre.com;
root /var/www/rails/user_management/current/;
index index.html index.htm;
client_max_body_size 50M;

access_log  /var/log/nginx/localhost.access.log;

proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded_for $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect false;
proxy_max_temp_file_size 0;

location / {
    if (-f $request_filename) {
       break;
    }
    if (-f $request_filename/index.html) {
       rewrite (.*) $1/index.html break;
    }
    if (-f $request_filename.html) {
       rewrite (.*) $1.html break;
    }
    if (!-f $request_filename) {
       proxy_pass http://rails;
       break;
    }
}

# redirect server error pages to the static page /50x.html
#
error_page   500 502 503 504  /500.html;
location = /500.html {
    root  /var/www/rails/user_management/current/public;
}

}

2

I posted the below earlier, but nobody has replied. I think I found the
solution to part of my problem but my solution introduces a new issue.

I added the following directive to pass
http://my.domain.com/user_management/ to the correct mongrel cluster.

location /user_management_dev/ {
root /var/www/rails/user_management/current/;
rewrite /user_management_dev(.*) $1;
proxy_pass http://user_management_prod;
break;
}

The problem is that now the application sees it’s url as being
http://my.domain.com so all the links inside the rails application don’t
go
anywhere. Is there a way to tell the proxied application that it needs
to
add “/user_management” to the end of it’s host name?

3

I figured this out… you have to use the prefix option for mongrel
which
can be called on the command line of included in the .yaml file in
/etc/mongrel (if you have it configured that way)

See: http://mongrel.rubyforge.org/wiki/FAQ