[Unit] Description=Overlayfs directories setup {LOWERDIR} RequiresMountsFor={DATA_MOUNT_POINT} DefaultDependencies=no [Service] Type=oneshot ExecStart=/usr/sbin/overlayfs-create-dirs.sh {LOWERDIR} {DATA_MOUNT_POINT} RemainAfterExit=true StandardOutput=journal [Install] WantedBy=multi-user.target