The difference between Docker and a VM is that Docker shares a kernel, but provides isolated processes and filesystems. macOS has a very distinct kernel from Linux (hence why Docker on macOS uses a Linux VM), I would be shocked if it could run on a Linux Docker host. Maybe you were running macOS in a VM?

[–] YellowTraveller@lemm.ee 3 points 1 year ago* (last edited 1 year ago) (2 children)

Nope, Mac OS as a Docker container, it's a thing: https://hub.docker.com/r/sickcodes/docker-osx

Also you don't need a Linux VM to run docker containers on a Mac host btw

[–] george@midwest.social 2 points 1 year ago

TIL, good to know!

[–] fbartels@lemmy.one 1 points 1 year ago

The first layer in that docker container is actually KVM. So you run the container to run kvm, which then emulates osx.