

It auto discovers machines/instances/VMs/containers in the mesh and figures out the secure routing on the fly. If you couldn’t ensure a consistent IP from the home address it wouldn’t matter… The service mesh would work it out.
It is probably overkill for this project though… Something to think about…
Certbot in cron if you’re still managing servers.
I’m using cert-manager in kube.
I haven’t manually managed a certificate in years… Would never want to do it again either.