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Podman or rootless docker? (lemmy.ca)

submitted 3 days ago by bigdickdonkey@lemmy.ca to c/selfhosted@lemmy.world

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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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[–] oranki@piefed.social 10 points 2 days ago (10 children)

I'm very much biased towards Podman, but from what I understand rootless Docker is a bit of an afterthought, while Podman has been developed from the ground up with rootless in mind. That should be reason enough.

The very few things Docker can do that Podman struggles a bit with are stuff that usually involves mounting the Docker socket in the container or other stupid things. Since you care about security, you wouldn't do that anyway. Not to mention there's also rootful Podman, when you need that level of access.

I'd recommend an RPM-based distro with Podman, the few times I've tried Podman on a deb distro, there's always been something wonky. It's been a while, though.

[–] cmgvd3lw@discuss.tchncs.de 5 points 2 days ago (2 children)

Podman actually run fine on Debian 12. Though the packaged version is a bit old. Does not support podman compose command. Though podman-compose works.

[–] vegetaaaaaaa@lemmy.world 2 points 1 day ago* (last edited 20 hours ago) (1 children)

podman-compose is packaged in a separate podman-compose package in Debian 12 (did not try it though). The only thing missing (for me) in Debian 12 is quadlets support (requires podman 4.4+, Debian 12 has 4.3)

[–] cmgvd3lw@discuss.tchncs.de 2 points 1 day ago (1 children)

No its on 4.x I think.

[–] vegetaaaaaaa@lemmy.world 1 points 20 hours ago

You are right. Quadlets require 4.4, Debian 12 has 4.3

[–] oranki@piefed.social 2 points 2 days ago

Thanks. Last time I tried it was just after bookworm released, and on ARM, so it has probably got better

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