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Does it have to be a Linux host? Can it be a Mac OS X host?

• amaccuish 6y ago
  I'm pretty sure since Docker uses bhyve on mac, so that would be a nested VM...
  • lostlogin 6y ago
    I misunderstood the angle this thread was taking - I thought the OP was going to ask if the Dockered MacOS could run Docker. I was just reading up on Rancher OS, but that’s a containerisation too far at this time in the AM.
  • sigjuice 6y ago
    Docker has their own xhyve derivative called hyperkit. Nested VMs are not supported https://github.com/moby/hyperkit/issues/127 https://github.com/moby/hyperkit/issues/127
    • chrisgacsal 6y ago
      If I am not mistaken then xhyve and hyperkit are separate projects utilizing the same Hypervisor Framework from Apple under the hood.
      • lloeki 6y ago
        hyperkit is a fork of xhyve, plus stuff like bridges between inotify and kqueue/fsevents, or transparent tcp port forwarding. Hypervisor.framework is an API to execute hypervised code, to build virtualisation engines that can run unprivileged; you still have to write an actual virtual machine.
    • lloeki 6y ago
      You can use Docker Machine and whatever backend you want, including xhyve, VirtualBox, and VMware Fusion, and enable nested virtualisation in the created machine.
• ggregoire 6y ago
  Not sure why you getting downvoted. Here is another solution posted 12 days ago that works on macOS: https://news.ycombinator.com/item?id=23284987 https://news.ycombinator.com/item?id=23284987 I didn't try it yet but I plan to use it to test Ansible playbooks targeting macOS.