My guess is the cleanup process is running as root and clobbers anything it sees regardless of permissions. But that’s a guess. I’ve never tried keeping long term data in tmp.

You have two things happening at once.

First. There a process that cleans up tmp files according to a configuration. Yours is probably set to clean files older than a day.

https://www.freedesktop.org/software/systemd/man/latest/tmpfiles.d.html for more information

Second, As to the folder. Docker will create a folder with the bind mount’s name if it’s not found. So Docker tries to find your promethius file, doesn’t find it, then creates a folder with that name and mounts it instead.

You should move the files out of tmp. That’ll solve all your problems.

I don’t know if you personally have any disabilities, but generally, when I see this take, the person doesn’t.

I’d take a crispr treatment without hesitation. And everyone I know would do the same. My partner and I are doing IVF not for fertility reasons but to ensure certain genes don’t get passed down to our kids.

That whole disability-is-a-positive view is a very privileged thing to say.