location   /jupyterhub {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header X-Real-IP $remote_addr;
        #proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-NginX-Proxy true;


        # websocket headers
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        #proxy_set_header Connection $connection_upgrade;
        proxy_set_header X-Scheme $scheme;

        proxy_buffering off;
    }
    # Managing requests to verify letsencrypt host
    location ~ /.well-known {
        allow all;
    }
