Default path of StateDir should be locked for preventing automatic clean-up by systemd-tmpfiles. #185
Description
rootlesskit creates /tmp/rootlesskitXXXX directory if rootlesskit is launched without --state-dir option. But files in StateDir have no protection for automatic cleanup from systemd-tmpfiles. It could be lost *.sock files unexpectedly.
the systemd documentation describes how to protect files from automatic clean-up. (I suppose the number 3 is suitable for rootlesskit.)
https://systemd.io/TEMPORARY_DIRECTORIES/