this post was submitted on 07 Apr 2024
18 points (87.5% liked)

Selfhosted

59999 readers
456 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.

  3. Posts here are to be centered around self-hosting. Please ensure it is clear in your post how it relates to self-hosting.

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

  5. Submission headline should match the article title.

  6. No trolling.

Resources:

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

Questions? DM the mods!

founded 3 years ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
ayyy@sh.itjust.works
curbstickle@anarchist.nexus
curbstickle_lw@lemmy.world
18
Restart Docker Container Without root privileges (lemmy.cronyakatsuki.xyz)
submitted 2 years ago* (last edited 2 years ago) by crony@lemmy.cronyakatsuki.xyz to c/selfhosted@lemmy.world
14 comments fedilink hide all child comments
 

Hello, I have a mumble server running as a docker container.

I'm using lego to generate let's encrypt certificates using dns challenge as an unprivileged user.

My problem is that I need to restart the mumble server so that it can reload the ssl certificate, which means restarting the docker container.

Is there any way to do this withuot adding the user to docker group, since there are security issues with that group where it's easy to escalate to a root user.

I thought about maybe a user level systemd service could be able to do it, but wan't to hear your opinions?

EDIT: I mention mumble specifically here, but this can apply to any server that requires manual reload of ssl keys, like postfix for example. I'm also not againd the idea of converting to something like kubernetes or even podman ( which would be harder cause of file permissions on all my binds ) if they can allow for woking on the container without root privileges.

you are viewing a single comment's thread
view the rest of the comments
[โ€“] redcalcium@lemmy.institute 12 points 2 years ago (1 children)

I think you can send a SIGUSR1 signal to mumble process to tell it to reload the ssl certificate without actually restarting mumble's process. You can use docker kill --signal="SIGUSR1" <container name or id>, but then you still need to give your user access to docker group. Maybe you can setup a monthly cron on root user to run that command every months?

[โ€“] crony@lemmy.cronyakatsuki.xyz 2 points 2 years ago

Yea this seems like the most easy solution for mumble specifically.