this post was submitted on 20 Feb 2025
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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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[–] just_another_person@lemmy.world 1 points 1 day ago (8 children)

This thread has raised so many questions I'd like answered:

  1. Why are people backing up containers?
  2. Why are people running docker-in-docker?
  3. I saw someone mention snapshotting containers...what's the purpose of this?
  4. Why are people backing up docker installs?

Seriously thought I was going crazy reading some of these, and now I'm convinced the majority of people posting suggestions in here do not understand how to use containers at all.

Flat file configs, volumes, layers, versioning...it's like people don't know what these are are how to use them, and that is incredibly disconcerting.

[–] Oisteink@feddit.nl 4 points 1 day ago (1 children)

Because a lot of people don’t learn docker, they install docker because some software they want to use is distributed that way.

[–] mr_jaaay@lemmy.ml 2 points 1 day ago

Yup, this is me exactly. I’ve been planning on going more indepth but haven’t found the time. Inunderstand Linux and how to use LXCs, docker less so.

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