[syslog-ng] Setting and using variables

[Faine, Mark R. (MSFC-IS40)[NICS]]

Is there a way to set variables in syslog-ng?

I have a log path with about 20  if/else branches and each one does a unnamed destination for that branch:

log {
     source(pan_splunk);
     if ( tags('mytag') ) {
         destination {
           file("/var/log/remote/backup/$HOST/asa/${HOST}_asa.log"
           create-dirs(yes) dir-owner("splunk") dir-group("splunk") dir-perm(0750));
         };
     } elif ( message('something else') ) {
         destination {
           file("/var/log/remote/backup/$HOST/pubfw/${HOST}_pubfw.log"
           create-dirs(yes) dir-owner("splunk") dir-group("splunk") dir-perm(0750));
         };
     } elif {
         filter { message('foo')   or
             message('bar')           or
             message('baz')  or
     ...

I'd need to introduce another directory level as a variable and I'd also like to change an existing part of the path to a variable so that then I could then do something like this:

if ( tags('mytag') ) {
    app = asa
    location = msfc
elif 
...

and at the end I could then just do a single destination that had a file path with the variables
file("/var/log/remote/backup/$location/$HOST/$app/${HOST}_$app.log"

Thanks,
-Mark