2014-11-18 14:52 GMT+01:00 Martin Pitt <martin.p...@ubuntu.com>: > Colin Guthrie [2014-11-18 13:01 +0000]: >> > * I suppose even wich such a policy the post-installation script >> > still needs to call some systemd-update-policy-mumble-mumble magic >> > to actually apply the new policy? >> >> Well, the *.policy files are simply read when calling "systemctl preset" > > Right. I meant, even with using presets, a newly installed package > still needs to call "systemd preset foo.service" for all the units > that it ships, so that the /etc symlinks are generated. I. e. we > merely replace "enable" (what the current Debian packages do) with > "preset" in the postinst. > > We need to do that as systemd doesn't automagically spot newly > installed units (via inotify or what not) and enable them. > > Or did I misunderstand this? > >> The idea is that there are very few policy files shipped in a distro > > Indeed. A generic distro should have exactly one, with "disable *" > (Fedora policy) or "enable *" (Debian policy). Anything more special > would be customization for specialized images/spins/etc. > >> > * With that, how would a package then say that it does *not* want a >> > particular unit to get enabled? >> >> The idea is that you don't really decide that at a package level, but at >> a distro level. > > We do (and that policy drives the auto-generated postinst), but there > are always special cases where a package might want to ship a unit > which doesn't get enabled by default. I was wondering how that could > be accomodated. So for that, the package itself could ship its own > preset file, containing a "disable myself.service"? That would make > sense (if I understood it right). Either way, this is certainly the > rare exception.
I'm not sure if this preset feature with a single, centrally managed and distro-provided file is going to work with 1000+ packages shipping sysv init scripts (or in the future, systemd .service files). We really need the flexibility to decide that on a per package basis. -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth? _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel