Hi Matthias, May I ask, is the key 'MESSAGE' fix and the value is changing between messages? For that you could parse the incoming json with json-parser() and store the parsed key-values, then you can easily set the desired SDATA field with a rewrite rule. Alternatively, you can set the "store-matches" flag for filters and use the matching groups in a follow-up rewrite rule. Regards, Gábor On Tue, 29 Jun 2021, 10:42 Matthias Gruber, <MGruber@metzler.com> wrote:
Hi!
I hope it is simple and my thoughts and seeks about it were to complicated :-), simply I didnt know how to do that, perhaps someone has a clue for me
I am getting e.g. messages like "MESSAGE": "UIMUC4Maintenance.py: \"== deactivate_uc4_monitoring = ENDE ==\"", (thats out of an JSON-formatted syslog-ng output),
What I would like to do is, to extract the 'UIMUC4Maintenance.py:' and put it into a SDATA-Custom-Variable or PROG but based on a regex
so some sort of rewrite-rule like (no not a correct syntax, only to describe it) rewrite r_fill_program { set(match("^\w*\.py:" value("MESSAGE")) value("PROG")); };
As far as I understand it, set requires a "string" as first parameter, I could use a lots of rewrites with a condition, but I am in "lack of a static string", this should be some sort of variable :-) or I could do that static with a filter for every "^\w*\.py:"-Text, but I hope I could do that dynamic, every time a match of my regex syslog-ng inserts that part into a variable and so on...
Is that possible?
cheers Matthias
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