this post was submitted on 15 Nov 2024
62 points (100.0% liked)

Selfhosted

40296 readers
444 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz
62
Podman or rootless docker? (lemmy.ca)
submitted 1 week ago by bigdickdonkey@lemmy.ca to c/selfhosted@lemmy.world
45 comments fedilink hide all child comments
 

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?

you are viewing a single comment's thread
view the rest of the comments
[–] asap@lemmy.world 11 points 1 week ago (4 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.

[–] ilmagico@lemmy.world 4 points 1 week ago (3 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.

[–] asap@lemmy.world 8 points 1 week ago* (last edited 1 week ago) (2 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.

[–] bigdickdonkey@lemmy.ca 1 points 1 week ago* (last edited 1 week ago) (1 children)

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.~~ ignition is still required the same way as CoreOS

[–] asap@lemmy.world 2 points 1 week ago* (last edited 1 week ago)

Mainly for security. I was originally looking at CoreOS but I liked the additional improvements by the UBlue team. Since I only want it to run containers, it is a huge security benefit to be immutable and designed specifically for that workflow.

The Ignition file is super easy to do, even for just one server (substitute docker for podman depending which you have):

Take a copy of the UCore butane file:

https://github.com/ublue-os/ucore/blob/main/examples/ucore-autorebase.butane

Update it with your SSH public key and a password hash by using this command:

# Get a password hash
podman run -ti --rm quay.io/coreos/mkpasswd --method=yescrypt

Then host the butane file in a temporary local webserver:

# Convert Butane file to Ignition file
podman run -i --rm quay.io/coreos/butane:release --pretty --strict < ucore-autorebase.butane > ignition.ign

# Serve the Igition file using a temp webserver
podman run -p 5080:80 -v "$PWD":/var/www/html php:7.2-apache

During UCore setup, type in the address of the hosted file, e.g. http://your_ip_addr:5080/ignition.ign

That's it - UCore configures everything else during setup.___