Literal works when there is only one literal percent sign; last I checked,
you cannot use it twice in the same value. You can use "%%{::}{::hostname}"
to return "%{::hostname}" - the middle "%{::}" returns nothing and splits
the first percent from the variable name at the end, preventing
interpolation there.
The use of the two semi colons was to avoid a scoping issue that cropped up
as a regression around the puppet 4.3 timeframe that "%%{}{::hostname}"
would run into. It is possible this has been fixed by now and the
naked semi colons in the braces are optional, but I have not tested this
with the latest version of puppet myself.
On Monday, June 6, 2016, Christopher Wood <[email protected]>
wrote:
> I ran into this too, use the literal function.
>
> $ grep -rh literal hieradata/
> testing::cwood1::param3: "%{literal('%')}{::hostname}"
> testing::cwood1::param3: "%{literal('%')}{::hostname}"
>
>
> https://docs.puppet.com/hiera/3.1/variables.html#the-literal-lookup-function
>
> On Mon, Jun 06, 2016 at 06:20:46AM -0700, Simon wrote:
> > Hi all
> > does anyone know how i can escape %{ in hiera without it trying to
> convert
> > to variable?
> > i want to add the following to configure a syslog filter for logstash
> >
> > match => { "message" =>
> > "<%{POSINT:syslog_pri}>%{SYSLOGTIMESTAMP:syslog_timestamp}
> > %{SYSLOGHOST:syslog_hostname}
> > %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?:
> > %{GREEDYDATA:syslog_message}"}
> >
> > problem is it will try and convert to variables so only shows the
> > following on the server
> >
> > match => { "message" => "<> (?:\[\])?: "}
> >
> > i have tried all the methods i can think of, any help would be
> > appreciated.
> >
> > cheers
> >
> > S
> >
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