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Ways to backup your docker volumes ? (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

19 comments fedilink hide all child comments

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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[–] [email protected] 2 points 11 months ago (1 children)

Use XFS as file system and use --reflink when you copy the volumes, creates an instant CoW copy no matter how big the folder is. You can then move, copy or whatever that folder to anywhere, or use a VM and simply backup the VM.

[–] [email protected] 1 points 11 months ago

Do you have any detailed guide on this?