Lennart Poettering wrote: > On Fri, 24.07.15 11:07, Krzysztof Kotlenga (k.kotle...@sims.pl) wrote: > >> Unfortunately one cannot specify ConsistsOf in a unit file, which >> is a really annoying limitation. > > That limitation exists for a reason: systemd loads unit files lazily: > only units that are referenced by some other unit are loaded.
By reference you mean a reference that causes a unit file to be loaded like Wants? I understand that ConsistsOf is not (would not be) such a reference, but TBH I don't quite understand why. Is this something to do with "positive" and "inverse" dependencies and PartOf being already a positive one? (I'm staring at the UnitDependency enum). I kinda understand it was made this way mainly or even only with instance units in mind. Correct? > Thus, just sticking a unit file somewhere, and writing ConsistsOf= > into it, would generally not work, since the dep would never be > considered unless you also have a dep from something else on it. To > avoid this confusion we simply don't support it at all. What I've actually tried after learning about PartOf some time ago: # foo.target [Unit] Wants=a.service b.service c.service ConsistsOf=a.service b.service c.service so I can start/stop/restart a bunch of services with systemctl. Both lists in one place, so it would be hard to forget about something while making changes. Single file to edit - neat. Just perfect - that's what I thought until a moment later. > (Only way to make this work would be by allowing ConsistsOf= deps via > .consistsof subdirs with symlinks like we support it for .wants, and > then have ConsistsOf= in the [Install] section, if you follow what I > mean). .consistsof and [Install]/PartOf would sound reasonable, just like .wants and [Install]/WantedBy. [Install]/ConsistsOf seems wrong. But how will this solve anything? Is .wants different from Wants? -- kjk _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
