The GNU Shepherd
The GNU Daemon Shepherd or GNU Shepherd, formerly known as GNU dmd, is a service manager that looks after the herd of system services. It provides a replacement for the service-managing capabilities of SysV-init (or any other init) with a both powerful and beautiful dependency-based system with a convenient interface. It is intended for use on GNU/Hurd, but it is supposed to work on every POSIX-like system where Guile is available. In particular, it is used as PID 1 by the Guix System Distribution (GuixSD).
Downloading the Shepherd
The guix-devel mailing list is used to discuss most aspects of the Shepherd, including development and enhancement requests.
Security reports that should not be made immediately public can be sent directly to the maintainer. If there is no response to an urgent issue, you can escalate to the general security mailing list for advice.
Development of the Shepherd, and GNU in general, is a volunteer effort, and you can contribute. For information, please read How to help GNU. If you'd like to get involved, it's a good idea to join the discussion mailing list (see above).
- Test releases
- Trying the latest test release (when available) is always appreciated. Test releases of the Shepherd can be found at http://alpha.gnu.org/gnu/shepherd/ (via HTTP) and ftp://alpha.gnu.org/gnu/shepherd/ (via FTP).
git clone git://git.savannah.gnu.org/shepherd.git
You can also browse the Git repository with your web browser: http://git.savannah.gnu.org/cgit/shepherd.git
- Road map
- The Shepherd is currently being maintained by Ludovic Courtès. Please use the mailing lists for contact.
The Shepherd is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
The GNU Shepherd was formerly known as GNU dmd. dmd was initially developed by Wolfgang Jährling, with input from other GNU hackers. It was first released in 2003, making it one of the first init systems departing from the venerable System V approach. Its development was then closely related to the GNU Hurd, although it has always supported GNU/Linux as well.
After a looong period of freeze, it was revived in 2013. It saw its first positively-numbered release in December 2013. It has since been used as the init system (PID 1) of the Guix System Distribution.
In January 2016, GNU dmd was renamed to GNU Shepherd to avoid confusion with a same-named project.