Optionally use hiera_hash on telegraf::inputs and telegraf::outputs

[joshuaspence]

It would be convenient if this module could do something similar to https://forge.puppet.com/yo61/logrotate, which exposes a $hieramerge parameter:

# apply user-defined rules
class logrotate::rules{

  $hieramerge = $::logrotate::hieramerge
  $rules      = $::logrotate::rules

  if $hieramerge {
    $_rules = hiera_hash('logrotate::rules', $rules)
  } else {
    $_rules = $rules
  }

  create_resources('logrotate::rule', $_rules)

}

Currently, we are using the following workaround:

  class { 'telegraf':
    inputs  => hiera_hash('telegraf::inputs'),
    outputs => hiera_hash('telegraf::outputs'),
  }

This workaround is required because Puppet 3's automatic parameter lookup doesn't support deep merging.

[yankcrime]

Fixed in #25.

[joshuaspence]

I dont think that #25 actually fixes this... If I set a value for telegraf::inputs (or telegraf::outputs) then the value from telegraf::params isn't read.