nginx config.rb

upstream uploader_cluster {
  server unix:/tmp/thin.uploader.0.sock;
  server unix:/tmp/thin.uploader.1.sock;
  server unix:/tmp/thin.uploader.2.sock;
  server unix:/tmp/thin.uploader.3.sock;
  server unix:/tmp/thin.uploader.4.sock;
}


server {
     listen 80;     
     server_name uploader.com; 

     charset off;
     client_max_body_size 10m;

     access_log /var/www/uploader/log/access.log;
     error_log /var/www/uploader/log/error.log;

     root /var/www/uploader/public;
     index index.html;

     location / {
         proxy_redirect     off;
         proxy_set_header   Host             $host;
         proxy_set_header   X-Real-IP        $remote_addr;
         proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;

         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://uploader_cluster;
             break;
         }
     }

     location ~*uploads$ {
        if ($request_method = GET) {
          proxy_pass http://uploader_cluster;
          break;
        }


        # pass request body to here
        upload_pass @upload_photos;

        # Store files to this directory
        # The directory is hashed, subdirectories 0 1 2 3 4 5 6 7 8 9 should exist
        # i.e. make sure to create /u/apps/bugle/shared/uploads_tmp/0 /u/apps/bugle/shared/uploads_tmp/1 etc.
        upload_store /vol/uploads 1;

        # set permissions on the uploaded files
        upload_store_access user:rw group:rw all:r;

        # Set specified fields in request body
        # this puts the original filename, new path+filename and content type in the requests params
        upload_set_form_field upload[file_name] "$upload_file_name";
        upload_set_form_field upload[file_content_type] "$upload_content_type";
        upload_set_form_field upload[file_path] "$upload_tmp_path";
        upload_aggregate_form_field upload[file_size] "$upload_file_size";

        upload_pass_form_field "fb_sig.*|^aid$";

        upload_cleanup 400 404 499 500-505;
     }

     location @upload_photos {
        proxy_pass http://uploader_cluster;
     }
}