dh_systemd_start - Linux
Overview
The dh_systemd_start command is a Debian helper tool that generates a systemd unit file for a specified package. It simplifies the process of integrating a package with the systemd init system, ensuring that it starts automatically on boot and restarts gracefully if necessary.
Syntax
dh_systemd_start [options] [package]
Options/Flags
- -n: Do not create a unit file, only print the contents to stdout. Useful for debugging or testing.
- –service: Create a service unit file (default).
- –socket: Create a socket unit file.
- –timer: Create a timer unit file.
- –path путь_к_файлу: Specify a custom path for the generated unit file.
- –start-priority priority: Set the start priority for the unit file. Defaults to 10.
- –stop-priority priority: Set the stop priority for the unit file. Defaults to 20.
- –no-reload: Disable the Reload=reload option in the unit file.
- –extra-args аргументы: Append additional arguments to the ExecStart and ExecStop commands in the unit file.
Examples
Create a Service Unit File
dh_systemd_start --service packagename
Create a Socket Unit File
dh_systemd_start --socket socketservicename
Create a Timer Unit File
dh_systemd_start --timer timerunitname
Print Unit File Contents
dh_systemd_start -n packagename
Common Issues
- Permission errors: Ensure that the user running the command has sufficient permissions to create and write to the systemd unit file directory (/lib/systemd/system).
- Duplicate unit files: If a unit file for the package already exists, it may need to be manually removed before generating a new one.
Integration
dh_systemd_start can be used in conjunction with other Debian helper tools to automate the packaging and deployment of systemd services. For example, it can be used with dh_make, debuild, and dpkg-buildpackage to create and install packages that integrate seamlessly with systemd.
Related Commands
systemctl: Manage systemd units.dh_systemd_enable: Enable a systemd unit on boot.dh_systemd_restart: Restart a systemd unit.