On Tuesday 03 November 2009 14:18, Vladimir Dronnikov wrote:
> Hello, Denys!
>
> I'd like to discuss the drawback (feature?) of runit services
> (http://busybox.net/~vda/init_vs_runsv.html) which has always been
> inspiring me to make some changes:
>
> runsv spoils service container directory with "supervise" directory --
> pure runtime info which _should not_ survive between reboots -- thus
> it's native place is /var/run/<service name>.
>
> There too should go "supervise" or "service logger" subservice.
If you like stuff to be spread into many directories - yes.
> Suppose I have getty service (say, on tty1) and want its activity to
> be logged. I should make:
> /etc/init.d/getty1/
> run # service starter
> supervise/ is a symlink for /var/run/getty1/supervise
You propose that what exactly should make this link?
> log/
> run # logger subservice
> supervise/ is a symlink for /var/run/getty1/log/supervise
>
> Furthermore, one can expect service logs under /var/log/<service
> name>.
And on my home system, log/run makes it so. Without making
it mandatory for every user of runsv.
> To achieve that, logger service's run should be a symlink to a
> generic enough script, which retrieves the name of parent service and
> prepares /var/log/<service name>.
>
> E.g. generic /usr/bin/log can be of form:
> -------------
> A=`pwd`
> A=${A%/log}
> A=${A##*/}
> D=/var/log/$A
> mkdir -p -m 750 $D && chown log:log $D && exec chpst -u log:log -- svlogd -tt
> $D
> -------------
>
> Furthermore, logger subservice then is invariant for any service, and
> we can control whether to start it or not by placing, say, "nolog"
> file marker into service directory, just like "down" file to control
> service startup mode. That way, service's "run" can analyze the
> presence of "nolog" marker and create logger subservice hierarchy
> automagically.
Yes, you can make your log/run loo like this. I have no objections.
--
vda
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