Re: trigger external program on some change

[Pierangelo Masarati <ando@sys-net.it>]

matthew sporleder wrote:
> On 8/1/07, Emmanuel Dreyfus <manu@netbsd.org> wrote:
> > Hello
> >
> > I'd need to trigger execution of an external shell script when some
> > particular change occur in the tree. Is there a simple way of doing that?
> >
> > Of course, an overlay could do that. I saw no available overlay that
> > would have this capacity out of the box. The only way I see is building
> > a new overlay just for that, or use something such as slapo-auditlog
> > and feed it to an external filter (throug a pipe?). I wonder if there is a
> > simplier mechanism available.
>
> Although I kind of think a custom overlay would be cleaner, you could
> try replicating to a dummy server (like localhost:<off port>) running
> back-shell or back-perl and simply trigger there.

An alternative could be to use the slapo-accesslog(5) to log write 
operations, and use slapd-perl(5) as the logging database, so that write 
operations can be easily intercepted by a scripting backend without the 
hassle of setting up a replica.

Note that I haven't tried it, although it __should__ work.

p.



Ing. Pierangelo Masarati
OpenLDAP Core Team

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