nginx configuration for unicorn

nginx

  upstream app_server {
    server unix:/tmp/unicorn.sock fail_timeout=0;
  }

  server {
    root /srv/deploy/current/public;
    try_files $uri/index.html $uri.html $uri @app;
    location @app {
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_redirect off;
      proxy_pass http://app_server;
    }
  }