Hi Martin,
Thanks for the email. I understand your concerns about using other
backends. We have a reasonably small puppet deployment, so I think I will
try a DB based backend and see how it performs.
In that light, I've downloaded a hiera-mysql2 module from github and
installed it at:
# tree /usr/share/puppet/modules/hiera-mysql2
/usr/share/puppet/modules/hiera-mysql2
├── CHANGELOG.md
├── lib
│ └── puppet
│ └── functions
│ └── mysql2_lookup_key.rb
├── LICENSE
├── metadata.json
└── README.md
I've updated my /etc/puppet/hiera.yaml to include an entry for looking up
data using hiera-mysql2:
# head /etc/puppet/hiera.yaml
version: 5
defaults:
datadir: /etc/puppet/code/hiera
data_hash: yaml_data
hierarchy:
- name: "MySQL lookup"
lookup_key: mysql2_lookup_key
options:
And I've restarted my puppetmaster.
When I attempt a lookup, either locally on the puppet master (or on an
client system via puppet agent -t), I get:
# puppet lookup foo::bar --explain
Searching for "lookup_options"
Global Data Provider (hiera configuration version 5)
Using configuration "/etc/puppet/hiera.yaml"
Hierarchy entry "MySQL lookup"
Unable to find 'lookup_key' function named 'mysql2_lookup_key' (file:
/etc/puppet/hiera.yaml)
I did not use "puppet module" to install the module, I just copied the
files to the directory.
My module path looks good. Notice the last entry in the following path
output...
# puppet config print modulepath
/etc/puppet/code/environments/production/modules:/etc/puppet/code/environments/production/profiles:/etc/puppet/code/environments/production/roles:/etc/puppet/modules:/etc/puppet/profiles:/etc/puppet/roles:/usr/share/puppet/modules
Can anyone help me understand why the puppetmaster isn't seeing the
hiera-mysql2 module (and function contained therein) ?
Thank you for your consideration.
-m
On Thu, Apr 14, 2022 at 1:21 AM Martin Alfke <[email protected]> wrote:
> Hi,
>
> We usually recommend to not use any other backend, except for file based
> backends, due to performance.
> Any other backend must be able to deliver the same lookup speed.
> We did a calculation at a customer and we saw hiera answering 8000 queries
> in less than 1 second using the yaml file backend.
>
> With hiera5 you can of course write new backends.
> Please note that the hiera3 backends are not compatible with hiera5!
> https://puppet.com/docs/puppet/7/hiera_custom_backends.html
>
> Hth,
> Martin
>
>
> On 14. Apr 2022, at 04:30, 'Matt Zagrabelny' via Puppet Users <
> [email protected]> wrote:
>
> Greetings,
>
> I'm running puppet 5.5.
>
> Is anyone aware of a hiera 5 Pg backend?
>
> I've tried getting the hiera 3 module [0] working, but am struggling. I'm
> hoping a native hiera 5 will be a smoother experience.
>
> Thanks for the help!
>
> -m
>
> [0] https://github.com/rogeduardo/hiera-psql
>
>
>
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