Hi Ludo, On Tue, 09 Jan 2018 10:05:34 +0100 l...@gnu.org (Ludovic Courtès) wrote:
> We discussed some time ago the possibility to automatically instantiate > services. Now that service types have default value, I think it’s a > viable approach: if a service is required, and *if* it provides a > default value, then we can automatically instantiate it. > > So in the example above, you’d just specify ‘rottlog-service-type’ and > an ‘mcron-service-type’ would be automatically added if it’s not already > there. Yes, as long as there's a way for the user to easily see what it instantiated (in the running system). Also, that means that the instantiated mcron-service would automatically get a rottlog entry even though the mcron-service-types's default job list is empty, right ? In that case it would be nice to be able to (optionally) override this mcron-service by a custom mcron-service in /etc/config.scm but retain the modified configuration with the implicit job in it. Is that possible?
