nginx.conf

# use the socket we configured in our puma.rb
upstream puma_appname {
  server  unix:/home/deployer/apps/appname/shared/sockets/puma.sock fail_timeout=0;
}

server {
  listen       80;
  server_name  domain;
  root         /home/deployer/apps/appname/current/public;
  try_files    $uri/index.html $uri @puma_appname;
  error_page   500 502 503 504 /500.html;
  # maximum accepted body size of client request 
  client_max_body_size  4G;
  # the server will close connections after this time
  keepalive_timeout     10;

  access_log  /dev/null;
  error_log   /dev/null;


  location @puma_appname {
    proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header  Host $http_host;
    proxy_redirect    off;
    # pass to the upstream puma server mentioned above 
    proxy_pass        http://puma_appname;
  }

  # http://stackoverflow.com/a/6952804
  # https://gist.github.com/mikhailov/3052776
  # http://stackoverflow.com/a/7411613
  # http://guides.rubyonrails.org/asset_pipeline.html#precompiling-assets
  location ~ ^/assets/ {
    gzip_static  on;
    expires      max;
    add_header   Cache-Control public;
    add_header   Last-Modified "";
    add_header   ETag "";
 
    # open_file_cache         max=1000 inactive=500s;
    # open_file_cache_valid   600s;
    # open_file_cache_errors  on;
    
    break;
  }

}