[mholt]

Sounds like a fun project. Assuming you're talking about web servers, did you know Caddy can do that? Simply configure each one to use the same storage backend and Caddy will automatically coordinate management as a cluster, and share the certificate (and OCSP staple) resources.

(And depending on the storage backend, it's no longer a single point of failure. And even if storage is the failure, it's just storage, if it's down your servers will keep running.)

[nulld3v]

Huh that's actually quite interesting, I've never really looked into caddy as nginx has fulfilled most of my needs so far but I suppose it's about time I read up on it.