[syslog-ng] Injecting environment variables?

[Balazs Scheidler]

You don't need the dollar sign within backticks.
On Sep 23, 2014 6:58 PM, <jetjnkr at gmail.com> wrote:

> 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 at lists.balabit.hu wrote:
>
> > ----------------------
> >
> > Message: 1
> > Date: Mon, 22 Sep 2014 20:10:17 +0200
> > From: Balazs Scheidler <bazsi77 at gmail.com>
> > Subject: Re: [syslog-ng] Injecting environment variables?
> > To: "Syslog-ng users' and developers' mailing list"
> >       <syslog-ng at lists.balabit.hu>
> > Message-ID:
> >       <CAKcfE+a8ohm9rbAjyiBbHSs37iyE_mdP=
> SRU_Cgz_BSAccFFBg at 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 at 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 at gmail.com>
> >>> Subject: Re: [syslog-ng] Injecting environment variables?
> >>> To: "Syslog-ng users' and developers' mailing list"
> >>>      <syslog-ng at lists.balabit.hu>, wernli at in2p3.fr
> >>> Message-ID:
> >>>      <
> >> CAKcfE+ZKqqPnPOOSJek81eq_EPa7y3jUrPyKYH94jc3mxvPsmg at 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 at 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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