[Unit] Description=yggdrasil default config generator ConditionPathExists=|!/etc/yggdrasil.conf ConditionFileNotEmpty=|!/etc/yggdrasil.conf Wants=local-fs.target After=local-fs.target [Service] Type=oneshot Group=yggdrasil StandardOutput=file:/etc/yggdrasil.conf ExecStart=/usr/local/bin/yggdrasil -genconf ExecStartPost=/usr/local/bin/chmod 0640 /etc/yggdrasil.conf