[Devmon] Interface descriptions in if_load graph titles

[Buchan M. <bg...@st...>]

Prompted by Wim's post on the Hobbit list, I made a quick script to use for a 
custom title for the if_load graphs.

It is (at present) using a perl module (Xymon::Client) which I've started, and 
for which I am looking at use cases. For this use case, it could easily enough 
be replaced with a call to 'bb' if you don't want this additional dependency.

To use this:

1)Edit hobbitserver.cfg, add a PERL5LIB pointing to a directory under which 
you will install the attached Client.pm file. I used:

PERL5LIB=$BBHOME/perl

2)In the directory, create a directory named "Xymon", and place Client.pm in 
the directory (e.g. $BBHOME/perl/Xymon)
3)Save the attached devmongraphtitle.pl somewhere (I used $BBHOME/ext) 
4)Test that as the user your xymon runs as, under a xymon environment (e.g. 
after 'bbcmd bash') you can execute the script successfully. With no 
arguments, the output should be "Network Traffic"
5)Modify your devmon-graph.cfg (or whichever file has the graph definitions for 
if_load), so that you have something like:

TITLE exec:$BBHOME/ext/devmongraphtitle.pl

instead of the original:
TITLE Network Traffic

If it all works, you should now have the interface description in all your 
if_load graphs (for interfaces that have descriptions).

Let me know what you think (of either ...).

Once I find a home for Xymon::Client, I will probably add devmongraphtitle.pl 
to the extras directory in svn.

Regards,
Buchan