New subject: Injecting environment variables?

23 Sep 2014

      Ok sorry, but still struggling a bit with this:

Running with the following version

syslog-ng 3.2.5
Installer-Version: 3.2.5
Revision: ssh+git://bazsi@git.balabit//var/scm/git/syslog-ng/syslog-ng-ose--mainline--3.2#master#9d4bea28198bd731df1a61e980a2af5b88d81116
Compile-Date: Jan 15 2012 19:47:30
Enable-Threads: on
Enable-Debug: off
Enable-GProf: off
Enable-Memtrace: off
Enable-Sun-STREAMS: off
Enable-IPv6: on
Enable-Spoof-Source: on
Enable-TCP-Wrapper: on
Enable-SSL: off
Enable-SQL: on
Enable-Linux-Caps: off
Enable-Pcre: on
Enable-Pacct: off

I've attempted a number of variations - all have made me sad.....

               template t_cust { template("CUST $CUST"); };
               destination d_web_call      { file("/var/log/web_call" template("<$PRI> $DATE $HOST $MSG template($t_cust) \n") template_escape(no)); };

or 'backtick'....

              destination d_web_call      { file("/var/log/web_call" template("<$PRI> $DATE $HOST $MSG `$CUST` \n") template_escape(no)); };

or...

              destination d_web_call      { file("/var/log/web_call" template("<$PRI> $DATE $HOST $MSG  Template("template $CUST")` \n") template_escape(no)); };

$CUST is definitely defined in the environment but the logs don't have any value appended....

Any further guidance appreciated....

On Sep 23, 2014, at 6:00 AM, syslog-ng-request@lists.balabit.hu wrote:
...
----------------------
Message: 1
Date: Mon, 22 Sep 2014 20:10:17 +0200
From: Balazs Scheidler <bazsi77@gmail.com>
Subject: Re: [syslog-ng] Injecting environment variables?
To: "Syslog-ng users' and developers' mailing list"
  <syslog-ng@lists.balabit.hu>
Message-ID:
  <CAKcfE+a8ohm9rbAjyiBbHSs37iyE_mdP=SRU_Cgz_BSAccFFBg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
It came in with blocks and scl support. So if your version has support for
the system driver it will support this as well. My memories are vague with
3.2.
Environment variables are resolved at parsing time and should work like
this:
Template("template ?envvar?")
It works as if the environment variable was right there in the config file.
On Sep 21, 2014 3:14 PM, <jetjnkr@gmail.com> wrote:
...
Balazs,
Thanks,  do you have any examples in using the backtick it in a message
template?  Do you have to assign it to a config variable in a "define"
first?
How much 'earlier' versions of syslog-ng  will this work (e.g. before 3.2
?)
Jim.
...
From: Balazs Scheidler <bazsi77@gmail.com>
Subject: Re: [syslog-ng] Injecting environment variables?
To: "Syslog-ng users' and developers' mailing list"
     <syslog-ng@lists.balabit.hu>, wernli@in2p3.fr
Message-ID:
     <
CAKcfE+ZKqqPnPOOSJek81eq_EPa7y3jUrPyKYH94jc3mxvPsmg@mail.gmail.com>
...
Content-Type: text/plain; charset="utf-8"
Earlier you could use the backtick env variable format.
This one is substituted at config parsing.
On Sep 18, 2014 5:26 PM, "Fabien Wernli" <wernli@in2p3.fr> wrote:
...
Hi Jim,
As of version 3.5 you can use the `env` template function:
template("<$PRI> $DATE $HOST $MSG $(env <environment-variable>) \n")
template_escape(no));
Cheers

...
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Re: [syslog-ng] Injecting environment variables?

jetjnkr＠gmail.com

Balazs Scheidler

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