I haven't done a lot with it, but VMWare Fusion has a `vctl` command you can execute in Terminal:

https://github.com/VMwareFusion/vctl-docs/blob/master/docs/g...

Looks like it supports doing some kubernetes stuff using a `kind` cluster.

I've had pretty good experiences with Fusion, so, yeah, there's some real Docker alternatives up and coming. I think Docker's great, though, and I feel that we'd never have seen a `vctl` on a mac without it's existence.