this post was submitted on 01 Nov 2023
1 points (100.0% liked)

Self-Hosted Main

511 readers
1 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.

For Example

We welcome posts that include suggestions for good self-hosted alternatives to popular online services, how they are better, or how they give back control of your data. Also include hints and tips for less technical readers.

Useful Lists

founded 1 year ago
MODERATORS
[email protected]
1
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]
33 comments fedilink hide all child comments
 

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.

you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 1 points 1 year ago (1 children)

All Docker containers have their persistent data in Docker volumes located on a BTRFS mount. A cronjob takes a snapshot of the BTRFS volume, then calls btrfs send, pipes that through tar and gpg and then directly to AWS S3.

[โ€“] [email protected] 1 points 1 year ago

Great idea. I already do something similar(minus the btrfs part) for Vaultwarden. Mind sharing the script/commands?

I setup my host with btrfs but I have 0 knowledge of it so I didn't take advantage of it until now. I already have my docker volumes mapped to /docker/stack so I'm gonna create a sub-volume and move that there.

I'm mostly interest in your btrfs snapshot and send commands but if you don't mind sharing the whole thing that would be great.