title: Proxy Apache Load Balancers to a Unix Socket instead of a port
body: <p>How can we do the below Nginx configuration in Apache?<br>
  Basically proxying to a Unix socket instead of a load balanced port.<br>
  I want that Unicorn handle the load balancing instead of Apache.</p>
  
  <pre><code>upstream unicorn_server {
    server unix:/home/prats/public_html/myapp/current/tmp/sockets/unicorn.sock
    fail_timeout=0;
  }
  
  server {
      ...
      ...
      ...
    location / {
      ...
      ...    
      # If you don't find the filename in the static files
      # Then request it from the unicorn server
      if (!-f $request_filename) {
        proxy_pass http://unicorn_server;
        break;
      }
      ...
      ...
    }
  }
  </code></pre>