HUH?
Proxmox → Ubuntu VM → Docker container?
ARE YOU MAD? 
Run the native Plex app in the VM. Docker is adding another layer of crap you don’t need.
- Proxmox + docker
-or-
- Proxmox + VM
Not both!
Have you seen this???
PS: If I could get proxmox to boot on my BabyNUC, I’d help with How-To’s. but it won’t detect the USB boot. It detects UNRAID just fine so not BIOS
