How to get hardware ID in Docker container on MacOS (and other systems)? (Python)

Question

I need to identify computers uniquely and repeatably, even after a long period and several reboots, without root permissions (can have root on docker).

What I found so far:

• Windows: wmic csproduct get uuid or wmic bios get serialnumber in shell
• MacOS: ioreg -rd1 -c IOPlatformExpertDevice | awk '/IOPlatformUUID/ { print $3; }' in shell
• Linux (Ubuntu): cat /sys/class/dmi/id/modalias in shell
• Ubuntu on Docker on Linux: the modalias returns the same as on the host, that's great
• Ubuntu on Docker on Mac: ???
• Ubuntu on Docker on Windows: ???

I'm looking for a solution specifically for Ubuntu on Docker on Mac. Things I've tried so far:

• from uuid import getnode is unreliable on both host and container, it gets an ID based on the MAC addresses
• dmidecode --string system-uuid fails with /dev/mem: No such file or directory
• the path /sys/class/dmi does not exist