I am troubleshooting an issue where my docker containers become unreachable after they are rebooted. I found that if I manually change the owner on the /mnt/user/appdata/containername to nobody:users and set the permissions to 775 then reboot the container, it works again until the next reboot.

First, how do I find out what is causing these permissions to change? and Second, is there a better way to restore the owner/permissions correctly?

Each container should manage its own appdata owner/permissions. In fact, we usually say don't mess with that yourself. That is why Docker Safe New Perms exists, because it won't modify appdata.

Maybe you should just delete appdata and start over, and leave that alone.

34 minutes ago, trurl said:

Each container should manage its own appdata owner/permissions. In fact, we usually say don't mess with that yourself. That is why Docker Safe New Perms exists, because it won't modify appdata.

Maybe you should just delete appdata and start over, and leave that alone.

What is the safe way to re-create the appdata folder without losing all my containers?

Also, I saw someone mention their appdata backup plugin was causing their issues. Do these settings look correct?

I ended up backing up the config inside each container, turned off Docker, renamed appdata to appdata-old, turned Docker back on and restored the backup within each container. That seemed to work fine.