[razerbeans]

Trying to figure out what's unique here, but it seems like Proxmox is being used to create VMs that then run docker. Then docker on these VMs is used to spin up a bunch of containers. So really, it's just Proxmox -> VM -> Docker -> Containers. So it's dedicated docker VMs to coordinate containers...

I was expecting Proxmox's LXC capabilities to be used to scale up to 13000, but this is just VMs + docker allowing that. Seems like the same thing could be done with any LVM hypervisor and VMs? Can someone correct me if I'm missing something?

[ornornor]

AFAIK it’s the only way to run docker containers on proxmox. You can run lxc containers directly but docker requires an intermediate vm… which is one more reason to avoid docker altogether :)

[salmon]

You can install Docker directly on Proxmox. I did a little comparison of the 3 methods [1].

[1] https://danthesalmon.com/running-docker-on-proxmox/

[unethical_ban]

No, sounds like you got it.