gistfile1.txt

upstream mls {
        server 127.0.0.1:5000;
}

server {
        listen   80;
        server_name  mls;

        access_log  /var/log/nginx/mls.access.log;

        root   /srv/mls/staging/current/public;
        try_files /maintenance.html $uri/index.html $uri.html $uri @app;
                  
        location @app {
                proxy_set_header X-Real-IP            $remote_addr;
                proxy_set_header X-Forwarded-For      $proxy_add_x_forwarded_for;
                proxy_set_header Host                 $http_host;
                proxy_redirect off;
                proxy_pass http://mls_staging;
        }
}