How do I transfer a Let's Encrypt certificate from one droplet to another?
I've followed this guide to install a Let's Encrypt certificate on the first droplet: https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-16-04
I'd like to destroy that droplet and instead move the certificate to a new droplet elsewhere. Do I run certbot again on the new droplet? Or do I just copy over the certificate files? If the latter, then how do I configure auto-renewal?