прикрепляйте, отсоединяйте или проверяйте портативные сервисные образы (Attach, detach or inspect portable service images)
Файлы (Files)
Portable service images are preferably stored in
/var/lib/portables/, but are also searched for in
/etc/portables/, /run/systemd/portables/,
/usr/local/lib/portables/ and /usr/lib/portables/. It's
recommended not to place image files directly in /etc/portables/
or /run/systemd/portables/ (as these are generally not suitable
for storing large or non-textual data), but use these directories
only for linking images located elsewhere into the image search
path.
When a portable service image is attached, matching unit files
are copied onto the host into the /etc/systemd/system.attached/
and /run/systemd/system.attached/ directories. When an image is
detached, the unit files are removed again from these
directories.