Support for accessing credentials in ExecStartPre #12
Description
While systemd/systemd#24734 was merged, it's only available in newer systemd versions (according to GitHub - v252-rc1) - however LTS releases of Linux distributions (Ubuntu, RHEL etc.) will probably not see newer version at all in current release (or even backports).
Therefore this feature has to be re-implemented in Syringe to make credentials available on installations with older systemd versions.