this post was submitted on 20 Feb 2025
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Docker in LXC vs VM (lemmy.ml)
submitted 1 year ago by mr_jaaay@lemmy.ml to c/selfhosted@lemmy.world
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I run a small server with Proxmox, and I'm wondering what are your opinions on running Docker in separate LXC containers vs. running a specific VM for all Docker containers?

I started with LXC containers because I was more familiar with installing services the classic Linux way. I later added a VM specifically for running Docker containers. I'm thinking if I should continue this strategy and just add some more resources to the docker VM.

On one hand, backups seem to be easier with individual LXCs (I've had situations where I tried to update a Docker container but the new container broke the existing configuration and found it easiest just to restore the entire VM from backup). On the otherhand, it seems like more overhead to install Docker in each individual LXC.

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[–] hendrik@palaver.p3x.de 3 points 1 year ago

I don't think the internet gave particularly good advice here. Sure, there are use-cases for both, and that's why we have both approaches available. But you can't say VMs are better than containers. They're a different thing. They might even be worse in your case. But I mean in the end, all "simple thruths" are wrong.