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Should I move to Docker? (lemmy.ca)

submitted 10 months ago by [email protected] to c/[email protected]

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I'm a retired Unix admin. It was my job from the early '90s until the mid '10s. I've kept somewhat current ever since by running various machines at home. So far I've managed to avoid using Docker at home even though I have a decent understanding of how it works - I stopped being a sysadmin in the mid '10s, I still worked for a technology company and did plenty of "interesting" reading and training.

It seems that more and more stuff that I want to run at home is being delivered as Docker-first and I have to really go out of my way to find a non-Docker install.

I'm thinking it's no longer a fad and I should invest some time getting comfortable with it?

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[–] [email protected] 1 points 10 months ago

The backup and easy set up on other servers is not necessarily super useful for a homelab but a huge selling point for the enterprise level. You can make a VM template of your host with docker set up in it, with your Compose definitions but no actual data. Then spin up as many of those as you want and they'll just download what they need to run the images. Copying VMs with all the images in them takes much longer.

And regarding the memory footprint, you can get that even lower using podman because it's daemonless. But it is a little more work to set things up to auto start because you have to manually put it into systemd. But still a great option and it also works in Windows and is able to parse Compose configs too. Just running Docker Desktop in windows takes up like 1.5GB of memory for me. But I still prefer it because it has some convenient features.