[Xymon] automated svcs listing with xymon ps client and analysis.d

[Adam Thorn]

On 03/06/2022 09:49, nor krie wrote:

> I thought I can just create these cfg files in $XYMONHOME/etc/analysis.d 
> and it will be used similar to hosts.d or tasks.d directories.
> But obviously this does not work (and also there is no mention of 
> analysis.d in the manuals).
> 
> Of course I can add all these lines directly into analysis.cfg, but this 
> would create a very huge file.

analysis.cfg is read by xymond_client. Having looked quickly at the 
xymond_client.c source, it is definitely written to only load config 
from a single config file, which defaults to $XYMONHOME/etc/analysis.cfg

I've a somewhat experimental small gitlab project that I've never really 
used for anything in production:

https://github.com/alt36/cgifs

which lets you use Fuse to "mount" an arbitrary script at a directory of 
your choice. So, if you used it to..

./cgifs.pl /etc/xymon/foo/ /path/to/script.sh

and then adjusted your tasks.cfg entry for xymond_client to use 
--config=/etc/xymon/foo/analysis.cfg rather than the default, then 
reading the specified config file would return the output of

/path/to/script.sh analysis.cfg

script.sh could then just be something like

#!/bin/bash
cat /etc/xymon/analysis.d/*.cfg

Of course, you'd achieve a very similar effect (and probably a lot more 
robustly than my slightly hacky perl!) by having a cron job generate 
your analysis.cfg from fragments you've put in an analysis.d directory. 
Although, with my cgifs.pl version you could have script.sh instead run 
the bash loop you posted (but echoing to stdout rather than writing to 
servername.cfg) and always have the "live" version available...

Adam