nginx.conf

user  www-data;
worker_processes  auto;

error_log  error.log warn;
pid        /var/run/nginx.pid;

events {
  worker_connections  4096;  ## Default: 1024
}

http {
  client_body_buffer_size 5M;
  include    /etc/nginx/mime.types;
#   include    /etc/nginx/proxy.conf;
#   include    /etc/nginx/fastcgi.conf;
  index    index.html index.htm index.php;

  default_type application/octet-stream;
  log_format with_time '$remote_addr - $remote_user [$time_local] '
                     '"$request" $status $body_bytes_sent '
                     '"$http_referer" "$http_user_agent" $request_time';
  access_log   access.log  with_time;
  sendfile     on;
  tcp_nopush   on;

  server { # simple reverse-proxy
    listen       8000;
    # server_name  domain2.com www.domain2.com;
    # access_log   logs/domain2.access.log  main;

    # serve static files
    location ~ ^/(upload|static)/  {
      root    ../webapp/public; # /upload/aaazzz.pngにアクセスで/var/www/upload/aaazzz.pngを取得
    }

    # pass requests for dynamic content to rails/turbogears/zope, et al
    location / {
      proxy_pass      http://127.0.0.1:8888;
    }
  }

#   upstream big_server_com {
#     server 127.0.0.3:8000 weight=5;
#     server 127.0.0.3:8001 weight=5;
#     server 192.168.0.1:8000;
#     server 192.168.0.1:8001;
#   }