this post was submitted on 01 Nov 2023
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How do you backup your docker containers when so much is owned by root? (alien.top)
submitted 1 year ago by [email protected] to c/[email protected]
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I am trying to setup a restic job to backup my docker stacks, and with half of everything owned by root it becomes problematic. I've been wanting to look at podman so everything isn't owned by root, but for now I want to backup my work I built.

Also, how do you deal with some docker containers having databases. Do you have to create exports for all docker containers that have some form of database?

I've spent the last few days moving all my docker containers to a dedicated machine. I was using a mix of NFS and local storage before, but now I am doing everything on local NVME. My original plan was having everything on NFS so I would worry about backups there, and I might go back to that.

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[–] [email protected] 1 points 1 year ago (5 children)

For backups I use Nautical Backup.

For the "owned by root" problem, I ensure all my docker compose files have [P]UID and [P]GID set to 1000 (the user my docker runs under). All my 20 containers have no issue running like this.

How are you launching your containers? Docker compose is the way, I have set the following in all mine:

environment:
  - PUID=1000
  - PGID=1000

user:
  1000:1000
[–] [email protected] 1 points 1 year ago (1 children)

Do u add bothe the user and env variables or just one?

[–] [email protected] 1 points 1 year ago

I add both because why not. It doesn't hurt.

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