I need to reinstall Linux, how do i backup all my existing docker containers with the current settings?

BigBearCasaOS
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Title says it all, also i want to ask. Will i break my CasaOS backup if i install a newer version of Ubuntu LTS? Thank you in advance.

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Backup Instructions

  1. Backup CasaOS Application Files:
  • Copy the contents of /var/lib/casaos:
cp -r /var/lib/casaos ~/backup/casaos
  1. Backup Application Data:
  • Copy the contents of /DATA/AppData:
cp -r /DATA/AppData ~/backup/AppData

Restore Instructions

  1. Restore Application Data:
  • Copy the backed-up AppData back to its original location:
sudo cp -r ~/backup/AppData/* /DATA/AppData/
  1. Restore CasaOS Application Files:
  • Copy the backed-up CasaOS application files back to their original location:
sudo cp -r ~/backup/casaos/* /var/lib/casaos/
  1. Reinstall Applications:
  • For each application, go to the /var/lib/casaos/apps directory and install each app with the following command:
casaos-cli app-management install --file="/var/lib/casaos/apps/[The rest of the path here]"

I would run through a dry test of these instructions before the main event just to make sure everything works and gets restored.

4

Would this work including for Immich. This includes a Postgres database. Does Immich automatically detect its a restore and connect with restored database?

1 Like
5

I’m trying to apply this steps on my setup. I’ve tried with Jellyfin and run into permission problems. Maybe the files should’ve been copied with cp -pR to preserve permissions and ownership.

In my case, Jellyfin only works with PUID and GUID set to 0 (root permissions).

It’s hard to tell which permissions and ownership each file had before…

Edit.: Fixed! (apparently)

I added a new app directly from CasaOS store and checked out the permissions of the files that were created on /DATA/AppData/<NEW-APP> and /var/lib/casaos/apps/<NEW-APP>.

Basically, each <NEW-APP> folder is owned by root:root as well as the files in /var/lib/casaos/apps/<NEW-APP>/. In my case, the files inside /DATA/AppData/<NEW-APP>/ are owned by my_user:devmon. I changed ownership of Jellyfin’s AppData’s folders and files to my_user:devmon and it’s working, although I know that some files where owned by different users like abc before.