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Ways to backup your docker volumes ? (alien.top)
submitted 11 months ago by NothingInTheVoid@alien.top to c/main@selfhosted.forum
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I bought a second hand NUC to have a little more horsepower to run various services. I have it connected to my NAS, but almost all of the docker volumes reside on the SSD in the NUC.

It would be nice to be able to backup those volumes to my NAS in case the NUC fails. I have Debian 12 running on it.

What are my options ? Should I just backup my docker volumes or does it make more sense to backup the entire NUC ? (I'm less tech savvy then I might appear. Please be generous with your explanation, I still have a lot to learn)

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[-] CactusBoyScout@alien.top 1 points 11 months ago

Wow people are recommending a lot of things I don’t do and now I’m worried I’m doing something wrong.

I just have a folder on my Ubuntu boot drive called Docker with all of the persistent data from my containers. And I just tell Duplicati to backup that folder to BackBlaze. I don’t stop the containers to do that. Am I doing something wrong?

[-] NiftyLogic@alien.top 1 points 11 months ago

IMHO not really.

There is the slight chance that DBs get inconsistent with backing up hot DB files, but in a homelab with minimal load this is usually not an issue. Same for NFS.

Just make sure you have older backups, too. Just in case the last backup was not good.

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this post was submitted on 23 Nov 2023
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