Issue #19188 has been updated by Peter Meier.
So you would like to have something like a global default? Or did you still
think of a global default per key?
1. Why don't you define a default yourself directly in the code? Like:
<pre>
$a=hiera('a','a')
$b=hiera('b','b')
</pre>
2. What speaks against a solution where you define all these defaults in your
lowest hierarchy level? That you might not be able to control it? -> Maybe add
a third level, that you can control. Can't be another yaml hierarchy, but could
be a json one.
----------------------------------------
Feature #19188: configurable behavior with non-existing hiera variables
https://projects.puppetlabs.com/issues/19188#change-83117
Author: micah -
Status: Unreviewed
Priority: Normal
Assignee:
Category:
Target version:
Affected Puppet version:
Keywords: hiera
Branch:
puppet-hiera will fail if it wants to read a variable and can't find it.
It would be nice if you could configure the behaviour in hiera.yaml for how
hiera would deal with non-existent variables.
For example:
<pre>
--- dev/puppet » cat manifests/hiera_test2.pp
$a=hiera('a')
$b=hiera('b')
notice($a)
notice($b)
--- dev/puppet » cat /home/varac/.puppet/hiera.yaml
---
:backends:
- yaml
- puppet
:logger: console
:yaml:
:datadir: /home/varac/.puppet
:hierarchy:
- hiera_test
:puppet:
:datasource: data
--- dev/puppet » cat /home/varac/.puppet/hiera_test.yaml
---
a: a
b: b
--- dev/puppet » puppet apply -v manifests/hiera_test2.pp
notice: Scope(Class[main]): a
notice: Scope(Class[main]): b
info: Applying configuration version '1360597894'
notice: Finished catalog run in 0.07 seconds
--- dev/puppet » vi /home/varac/.puppet/hiera_test.yaml # remove variable b
--- dev/puppet » puppet apply -v manifests/hiera_test2.pp
Could not find data item b in any Hiera data file and no default supplied at
/home/varac/dev/Projects/Puppet/dev/puppet/manifests/hiera_test2.pp:2 on node
rocinante.bitrigger.de
</pre>
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