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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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[–] mr_jaaay@lemmy.ml 1 points 1 year ago (1 children)

Fair enough, would love to read something like this :-)

Yeah, I’ve been into Linux for 20 years, sometimes a bit on/off, as an all-around-sysadmin in mainly Windows places. And learned just enough of Docker to use it instead of apt - which I’d prefer, but as you said, many newer services don’t exist in debian repos or as .deb packages, only docker or similar.

[–] just_another_person@lemmy.world 1 points 1 year ago

If you're familiar with Linux, just read the Dockerfile of any given project. It's literally just a script for running a thing. You can take that info and install how you'd like if needed.