- ubuntu 18.04
uWSGI
https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-uwsgi-and-nginx-on-ubuntu-20-04
Nginx
https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-18-04
Firewall with UFW
https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-18-04