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  • ...*on macOS only and runs qemu as the emulator.

    We know. But of course the hype of "microVMs" is just a rebranding of existing technologies with some modifications, macOS needed extra virtualization technologies just for containers for years:

       Docker Desktop macOS (until 2025): QEMU + Virtualization.framework + Linux kernel (without extra drivers) = "microVM".
    Now they use the native Apple virtualization libraries instead of QEMU for both containers and microVMs. [0] Linux never needed to use KVM for containers, but requires it for microVMs:

       Linux: KVM + Linux kernel (without extra drivers) = Firecracker "microVM".
    In reality, it is different depending on the OS that you are using.

    [0] https://www.docker.com/blog/docker-desktop-for-mac-qemu-virt...

    by rvz
  • Yawn. IBM/AIX's WPARs & LPARs, Sun/Solaris' dynamic system domains & zones, BSD jails. How many times are we going to pat ourselves on the back for reinventing the wheel?
    by garypdx
  • > What if I told you that Docker Desktop has always used microVMs?

    Then I would say your title is wildly misleading.

    by yjftsjthsd-h
  • One reason I think a distinction is made is that native Docker-in-Docker can be a real pain, but Docker in a Firecracker microVM "just works".
    by sudb
  • Is all of docker one “micro” VM though? Or does each container get a clean, fresh one?
    by cr125rider
  • I often wonder what would have happened if rkt had been more successful.
    by kj4ips
  • Article title is a bit click-baity. The article is only talking about Docker Desktop on Mac or Windows. Docker Linux have not been using microVMs for a decade.
    by unsnap_biceps

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