this post was submitted on 12 Jul 2024
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I got an home server that is running docker for all my self hosted apps. But sometimes I accidentally trigger Earlyoom by remotely starting expensive docker builds, which kill docker.

I don't have access to my server outside of my home network, so I can't manually restart docker in those situations.

What would be the best way to restart it automatically? I don't mind doing a full system restart if needed

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[–] [email protected] -5 points 4 months ago* (last edited 4 months ago) (1 children)

Alright, sorry for calling it a "bandaid fix". It wasn't just the right term for what I wanted to say. I was more referring on how it would only fix issues in cases of builds, and not on actual runtime, which can also be an issue if I am not careful. So yeah, it's the fix for the issue in the post, but this solution made me realise that this isn't the only thing I want.

But the second part is... Just chill. It's a home server. Not a high availability cluster. I can afford stupid things. Heck, I'm only asking this question because I got stupid and haven't limited the job count of a cargo build, downing my server. I don't care that my build crash. I just want to not have to manually restart it, because when I'm not here I can't do it.

As for the link that you sent, it's container limitations, not image building limitations. And I already have setup some on my most hungry container, stats shown that it blew past it, so idk what's going on there.

Edit: NVM. This is a bandaid fix. What if you forgot to put the flag? Like it's been 5 month since last time and forgot to do the same fix? Or you accidentally removed it while editing the command? I'm actually looking for a solution that fixed my problem fully, not a partial solution

[–] [email protected] 2 points 4 months ago

Then you didn't explain the issue very well, because what you're asking for was given to you exactly. Builds also have flags, and you should know that if you're complaining about advice given to you. I'm not saying that to admonish you, just giving you the info.

The next step down is that you're using Portainer, and having user-error issues somehow. So another solution is renaming these actions something with a very obvious prefix like "BUILD ACTION", but also setting memory limits.

The very last step is making sure your swap is in order. Allocate 2x your system memory to swap, and this will help alleviate OOM issues to a point, but especially during builds.

If you come back and say this is a band-aid solution, get a better machine and stop asking questions to solve the impossible in here. This is your fault this is an issue to begin with, you don't know how to run your machines (regardless of it just being a home server or whatever ), and you're just being rude.