[Xymon] Generating alerts by non-xymon shell scripts

Thanks for the ideas Jeremy (as always :-) ), will check with the first option.

On Mon, Sep 22, 2014 at 11:47 PM, Jeremy Laidman <jlaidman at rebel-it.com.au> wrote:

On 23 September 2014 13:34, deepak deore <deepakdeore2004 at gmail.com> wrote:

...

Do we need to source xymonclient.cfg into normal shell scripts so that $BB $BBDISP $MACHINE etc. variables will work?

Not absolutely required, but depending on how clever you want to be, they can be helpful.

To give you an idea, this might do what you want, without setting any variables:

#!/bin/sh

cp /path/to/access-file /path/to/access-file.backup printf "allow him\ndeny her\nallow from all\n" > /path/to/access-file if apachectl -t >/dev/null; then # is OK apachectl graceful /usr/lib/xymon/client/bin/xymon 10.1.2.3 "status uname -n.apachecheck green date everything's fine with apache" else # is failed cp /path/to/access-file /path/to/access-file.bad cp /path/to/access-file.backup /path/to/access-file /usr/lib/xymon/client/bin/xymon 10.1.2.3 "status uname -n.apachecheck red date something's not right with apache" fi

Now the problem arises when you add a second Xymon server, or if you change IP addresses of the Xymon server. The 10.1.2.3 is no longer suitable. So that's when you want to define $XYMSERVERS="10.1.2.3 10.4.5.6" and then specify 0.0.0.0 as the server instead of 10.1.2.3, and then the xymon client will post messages to both servers as listed in the $XYMSERVERS environment variable.

Then let's say you want to run the script on another Apache server, but it has its Xymon client installed in a different location. So you need to have two versions of the script, one using /usr/lib/xymon/client/bin/xymon and another using /usr/local/xymon/client/bin/hobbit.

etc

The easiest way to do this is to make use of the variables, and then either the script within a xymoncmd wrapper (which sets all of the variables you need) or from tasks.cfg (which can also set the variables you need). You end up with something like this:

 $XYMON $XYMSRV "status $MACHINE.apachecheck red `date` something's

not right with apache"

This works on any of your Xymon clients, no matter how they're setup.

Here's another idea. You can have your script create a log entry using "logger" and then have Xymon's log watching code detect the anomaly and warn accordingly.

J