NGNIX 504 Gateway Time-out

Heya,

It seems that your issue might be related to the upstream Gunicorn server timing out. To get past this problem, try the following steps:

1. Check your Gunicorn server and ensure it’s running properly. Make sure to test your Flask application using Gunicorn without Nginx as a proxy. The command should look like:

gunicorn --bind unix:/root/text_generator/textgen.sock yourapp:wsgi --timeout 120

2. Ensure there’re no typos or syntax errors in your Nginx configuration file. Pay close attention to the location block and the path that the proxy_pass directive is pointing to.

3. Restart the services - After making any necessary changes, restart both Gunicorn and Nginx using the commands:

sudo systemctl restart gunicorn

sudo systemctl restart nginx

For more information about configuring Gunicorn and Nginx, refer to this DigitalOcean tutorial: How To Serve Flask Applications with Gunicorn and Nginx on Ubuntu 20.04.

Hope that this helps!