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this post was submitted on 03 Jul 2023
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Yes, under windows and osx at least.
Is that still true? I use Linux but my coworker said docker runs natively now on the M1s but maybe he was making it up
I suspect they meant it runs natively in that it’s an aarch64 binary. It’s still running a VM under the hood because docker is really just a nice frontend to a bunch of Linux kernel features.
What does it do anyway? I know there's lxc in the kernel and Docker not using it, doing it's own thing, but not much else.
I can't remember exactly what all the pieces are. However, I believe its a combination of
My understanding is that all of the neat properties of docker are actuall part of the kernel, docker (and podman and other container runtimes) are mostly just packing them together to achieve the desired properties of "containers".
Docker requires the Linux kernel to work.
M1 is just worse arm. Since most people use x86_64 instead of arm, docker had to emulate that architecture and therefore had performance issues. Now you've got arm specific images that don't require that hardware emulation layer, and so work a lot better.
Since that didn't solve the Linux kernel requirement, it's still running a VM to provide it.