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Abstractons
(lemmy.ml)
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this post was submitted on 17 Nov 2024
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People don’t actually do this, right? Docker inside docker inside a VM inside another VM? On windows? Right????
I've ran Docker in LXC in a KVM before. I used LXC to have multiple containers on a VPS. Then I had to run something that works best with Docker, so I stuck Docker in an LXC.
I'm pretty sure docker recommends that it runs under WSL when on windows.
Windows itself is technically running in a VM if you have Hyper-V enabled (not quite that simple, but that's a reasonable approximation). Hyper-V is a type 1 hypervisor which means it runs directly on the underlying physical hardware, and both Windows as well as any VMs you create are running on top of Hyper-V.
Oh that's an interesting tidbit, didn't know that
Yeah, docker in a VM makes sense. Docker in docker in a vm in a vm though?
Yep, can confirm
I've seen docker inside a VM before but that was just a dev box for testing
That's the most reasonable part of the image
Are you not losing loads of performance by stacking vms like that?
Using Docker in a VM on a Hypervisor is industry standard, using docker inside of docker may be okay for CI purposes but I wouldn't do anything more than that in production if it's not necessary.
The stack from the image above (Windows>WSL> Docker>Minikube>Docker>App) is something you'd use on a dev machine (not a "real", production-like test environment), in which case you don't really care about the performance loss
That's super standard for actual infrastructure
Isnt that exactly what minikube is? Kubernetes in docker.
I've used docker-in-docker images, but its usually not fun.