Comment 3 for bug 1845284

So, the libguestfs files in /var/tmp/.guestfs-0/appliance.d are the *cache* and libguestfs never removes those files.

(Double-checked with libguestfs maintainers.)

And Nova _shouldn't_ delete those files either; that's wrong.

Instead, we suggest to use a tool like `systemd-tmpfiles`; from its man page:

"`systemd-tmpfiles` creates, deletes, and cleans up volatile and temporary files and directories, based on the configuration file format and location specified in tmpfiles.d(5)"

So we should close this bug as "invalid", afraid.