$.str = re_extract($msg, ..)

is not valid syntax

set $.str = re_extract($msg, ..);

would be

after you fix the syntax, if you are still having problems, after the set, log using the RSYSLOG_DebugFormt and that will write 10-line dump of just about everything that rsyslog knows about the log message, including all the variables that are set at that point.

David Lang


On Tue, 23 Feb 2021, HERCEK, Marián via rsyslog wrote:

Date: Tue, 23 Feb 2021 09:14:44 +0000
From: "HERCEK, Marián via rsyslog" <rsyslog@lists.adiscon.com>
To: "rsyslog@lists.adiscon.com" <rsyslog@lists.adiscon.com>
Cc: "HERCEK, Marián" <marian.her...@ucm.sk>
Subject: [rsyslog] Dynamic subject text

Hello everyone,

I am struggling at defining dynamic subject text of e-mail.
Dynamic text should consist of constant text and content of a variable.

Example:
$.str = re_extract($msg, ..)

# does not work, subject is always without extracted string
template(name="mailSubject" type="string" string="SYSLOG alert [%fromhost%] 
%$.str%")
action(type="ommail", subject.template="mailSubject", ..)


---
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Blizsie informácie nájdete na 
https://www.ucm.sk/sk/gdpr-ochrana-osobnych-udajov/.
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