Puppet users - Oct 2014 - Exit Puppet when a custom Hiera backend is not found

Hi Guys,

I am using masterless Puppet. And My situation is that I am using a custom
Hiera backend called hiera-regex. The process of using it is that you have
to have hiera-regex installed on your target machine.

If sometime for some reason, hiera-regex is not installed, hiera still
looks up for the key in hierarchy and starts using that key which it was
not suppose to use in the presence of hiera-regex. Ideally, I would want
Puppet to exit when it does not find hiera-regex backend installed. But as
of now, Puppet only prints a notice() which can be easily missed and can
leave your node in an unwanted state.

Is it possible to somehow configure Puppet/hiera for masterless setup to
not continue at all if hiera is configured to use a custom backend and that
backend is not installed?

Here is my hiera.yaml file:

---
:backends:
    - regex  # this is the custom backend (hiera-regex)
    - yaml

:regex:
    :datadir: /etc/puppet/hiera

:yaml:
    :datadir: /etc/puppet/hiera

:hierarchy:
    - "%{fqdn}"
    - base


Expecting some help on this. I have posted the same question on
stackoverflow as well:
http://stackoverflow.com/questions/26133604/exit-puppet-when-hiera-backend-is-not-found

Thanks,
Vaidik Kapoor
vaidikkapoor.info

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