NginX config for Rails 3.1 & Unicorn

gistfile1.txt

upstream example_backend {
  server unix:/var/www/example.com/shared/unicorn.sock;
}

server {
  listen 80;
  server_name example.com www.example.com;
  access_log off;
  error_log off;
  client_max_body_size 20M;
  
  location / {
    proxy_pass http://example_backend;
    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;
    # proxy_set_header X-Forwarded-Proto https; # for SSL, add this

    client_max_body_size       10m;
    client_body_buffer_size    128k;

    proxy_connect_timeout      90;
    proxy_send_timeout         90;
    proxy_read_timeout         90;

    proxy_buffer_size          4k;
    proxy_buffers              4 32k;
    proxy_busy_buffers_size    64k;
    proxy_temp_file_write_size 64k;

    index  index.html index.htm;
  }

  location ~ ^/(images|javascripts|stylesheets|assets)/  {
    root /var/www/example.com/current/public; # for asset pipeline and other static files
    expires max;
    break;
  }
  # redirect server error pages to the stat
  error_page  500 502 503 504  /50x.html;
}