Not gonna lie, getting this to work was hard, plus I'm still not
super happy with the results but it's good enough. You can set
a static ip in the Proxmox cloud-init disk and that's what you'll
end up with on first boot.
Note: this probably also applies to Ubuntu 18.04
We currently host some of our customers on our private cloud and as a result we need to manage an ssl certificate for them as well. Traditionally we've used a standard SSL provider but this was not only pricey, more importantly it was a lot of work for the support staff to get certs, update certs, deploy certs, etc.
I highly doubt I've invented something new, but I did independently invent it, so I have that going for me, which is nice. Plus I'm stitching together lots of great open source pieces which we all have going for us.
Anyhow, this is kind of difficult to explain. And complicated… with lots of moving parts… but is super useful once you get it to work.
As high level as possible, when I do a git push, another machine
reloads new configuration files. And notifies me. All within a second.