upstream gitlab {
  server unix:/home/gitlab/gitlab/tmp/sockets/gitlab.socket;
}

server {
  listen YOUR_SERVER_IP:80;         # e.g., listen 192.168.1.1:80;
  server_name YOUR_SERVER_FQDN;     # e.g., server_name source.example.com;
  root /home/gitlab/gitlab/public;
  
  # individual nginx logs for this gitlab vhost
  access_log  /var/log/nginx/gitlab_access.log;
  error_log   /var/log/nginx/gitlab_error.log;
  
  location / {
    # serve static files from defined root folder;.
    # @gitlab is a named location for the upstream fallback, see below
    try_files $uri $uri/index.html $uri.html @gitlab;
  }
  
  # if a file, which is not found in the root folder is requested, 
  # then the proxy pass the request to the upsteam (gitlab unicorn)
  location @gitlab {
    proxy_redirect     off;
    
    # you need to change this to "https", if you set "ssl" directive to "on"
    proxy_set_header   X-FORWARDED_PROTO http;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;
  
    proxy_pass http://gitlab;
  }
}