nginx, unicorn, memcached

widgets_com.conf

server {
  error_log /usr/local/var/log/nginx/error.log;
  listen widgets.local:80;
  server_name widgets.local;
  
  client_max_body_size 4G;
  keepalive_timeout 70;
  root /Users/username/rails/widgets/public;
  
  error_page 502 /502.html;
  error_page 504 /504.html;
  error_page 404 /404.html;
  error_page 500 503 /500.html;
  
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header Host $http_host;
  proxy_intercept_errors on;
  proxy_redirect off;
  proxy_buffering on;
  
  location / {
    if ($request_method != GET) {
      proxy_pass http://widgets_com;
      break;
    }
    
    try_files $uri /cache/$uri/index.html /cache/$uri.html /cache/$uri @widgets_cache;
  }
  
  location @widgets_cache {
    internal;
    default_type    text/html;
    add_header      "Content" "text/html; charset=utf8";
    charset         utf-8;
    set             $memcached_key PageCache:$uri;
    memcached_pass  memcache_servers;
    proxy_intercept_errors on;
    error_page      404 502 504 = @widgets_app;
    break;
  }
  
  location @widgets_app {
    internal;
    proxy_pass http://widgets_com;
    break;
  }
  
}