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Podman or rootless docker? (lemmy.ca)

submitted 15 hours ago by [email protected] to c/[email protected]

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I’m moving to a new machine soon and want to re-evaluate some security practices while I’m doing it. My current server is debian with all apps containerized in docker with root. I’d like to harden some stuff, especially vaultwarden but I’m concerned about transitioning to podman while using complex docker setups like nextcloud-aio. Do you have experience hardening your containers by switching? Is it worth it? How long is a piece of string?

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[–] [email protected] 8 points 14 hours ago (1 children)

I switched and was very glad to do so. You increase your security and so far I haven't seen any downside. Every container I've tried has worked without issues, even complex ones.

[–] [email protected] 4 points 13 hours ago (1 children)

Was this with podman or rootless docker?

I also would like to switch to rootless, I have some experience with podman and, while I generally like it, it's not 100% compatible with (rootful) docker, and can have performance issues if you're not careful, especiallt with certain file systems like btrfs. I wonder if rootless docker is now better than podman, or preferred for some other reason.

[–] [email protected] 6 points 13 hours ago* (last edited 13 hours ago) (1 children)

Rootless Podman :) It requires you to learn a little bit of new syntax, for example, the way you mount volumes and pass environment variables can be slightly different, but there's nothing that hasn't worked for me.

I'm using this on uBlue uCore, which I would also strongly recommend for security reasons.

[–] [email protected] 1 points 2 hours ago

Can you expand on why you chose uCore? I was considering CoreOS until just now and the idea of setting up ignition config serving seems overkill for running only one server at home.