Setting up SSL Certificate for Nginx on Digital Ocean

Many time after setting up a Digital Ocean box, you need to remember to setup Letsencrypt.

Few links to help with that:

• https://letsencrypt.org/docs/challenge-types/
• https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-18-04
• https://www.digitalocean.com/community/tutorials/how-to-acquire-a-let-s-encrypt-certificate-using-dns-validation-with-certbot-dns-digitalocean-on-ubuntu-20-04