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Re: trigger external program on some change

matthew sporleder wrote:
On 8/1/07, Emmanuel Dreyfus <manu@netbsd.org> wrote:

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.


Ing. Pierangelo Masarati
OpenLDAP Core Team

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