application config for nginx and pagespeed

app_name

upstream app_upstream {
  server              unix:/home/user/app_folder/current/tmp/sockets/app.sock fail_timeout=0;
}

server {
  listen              80;
  server_name         domain-name.com www.domain-name.com;
  root                /home/user/app_folder/current/public;
  try_files           $uri /system/maintenance.html @app_upstream;

  pagespeed on;
  pagespeed FileCachePath /home/user/app_folder/current/public;

  location @app_upstream {
    proxy_set_header  X-Real-IP $remote_addr;
    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto $scheme;
    proxy_set_header   Host $http_host;
    proxy_set_header   X-NginX-Proxy true;

    proxy_redirect     off;
    proxy_pass         http://app_upstream;

    proxy_http_version 1.1;
    proxy_set_header   Upgrade $http_upgrade;
    proxy_set_header   Connection "upgrade";

    #limit_req         zone=one burst=15;

    access_log         /dev/null;
    error_log          /home/user/app_folder/current/log/nginx.error.log;
  }

  location ~ \.(php)$ {
    deny              all;
  }

  location ~ ^/(assets|images|javascripts|stylesheets|swfs|system|uploads|fonts)/ {
    expires           1w;
    proxy_hide_header       Set-Cookie;
    proxy_ignore_headers    Set-Cookie;
    proxy_set_header        Cookie "";
    add_header              Cache-Control public;
    add_header              Cookie "";
  }

  location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" { add_header "" ""; }
  location ~ "^/ngx_pagespeed_static/" { }
  location ~ "^/ngx_pagespeed_beacon$" { }
  location /ngx_pagespeed_statistics { allow 127.0.0.1; deny all; }
  location /ngx_pagespeed_global_statistics { allow 127.0.0.1; deny all; }
  location /ngx_pagespeed_message { allow 127.0.0.1; deny all; }
  location /pagespeed_console { allow 127.0.0.1; deny all; }

}