You can write custom functions[1], but I don't think they can return a
hash -- only a single value. This functionality is designed for things
like calculating password hashes, etc, not generalized data lookup.
This is probably also completely the wrong approach, in the Puppet
model, if your goal is to parameterize entire classes.
A much better solution is to keep Hiera, but write a custom backend[2]
to integrate the data returned by your API into Hiera's structure. This
keeps all the benefits of Hiera while also giving you back-end flexibility.
[1] https://docs.puppet.com/guides/custom_functions.html
[2] https://docs.puppet.com/hiera/3.1/custom_backends.html
On 2016-06-10 11:53 AM, Pearl Raj wrote:
I am trying to write a module containing a function that returns
parameters from a webservice
- http://localhost:5000/app/api/nodes/node_id. This function should
return a hash of configuration settings specific to that host. How do
I do this? I am using puppet 3.0.
pseudo code is as follows
new module.pp
function get_config_from_host(host_id):
call http://localhost:5000/app/api/nodes/node_id and get the
config hash of host_id
return config hash
I am new to puppet, so confused whether it is possible to do this in
puppet
[Purpose of this exercise is to replace hiera]
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