Thanks guys for the explanation; worked just fine.
Is there any other "good" hiera documentation apart from the one in
Puppetlab doc?
-San
On Wednesday, April 16, 2014 6:59:27 PM UTC+1, jcbollinger wrote:
>
> On Wednesday, April 16, 2014 11:31:53 AM UTC-5, Sans wrote:
>>
>> Hi there,
>>
>> Trying to figure out how to use hiera-array in my template. So, this is
>> what I have in .yaml file:
>>
>
>
> No, you are just trying to use an array. Your template can't tell where
> the array came from or how it was constructed.
>
>
>
>>
>>
>> my_coll_list:
>>> - mon502.local
>>> - mon522.local
>>>
>>
>> and in my nodes.pp, I have this:
>>
>> $my_colloctors = hiera_array('my_coll_list')
>>
>>
>>
>>
>
> You probably do not want to use hiera_array() for that. Use plain hiera()
> instead. The former traverses your entire hierarchy, returning an array
> whose elements are the values matching the specified key at each level.
> The latter returns the value associated with the requested key at the
> highest-priority level of your hierarchy that provides one, as whatever
> data type is modeled by the data (an array, in your example).
>
>
>
>> then in one of my ERB templates, I using that like this:
>>
>> COLLECTORS = <%= @my_colloctors %>
>>>
>>
>>
>> if i understood correctly, according the Puppet documentation, using *array
>> merge lookup,* I was expecting a result like this: COLLECTORS =
>> ['mon502.local', 'mon522.local']
>> but what I'm getting is: COLLECTORS = mon502.localmon522.local
>>
>>
>
> 1. You are confusing the Puppet DSL representation of an array with
> its (Ruby) stringification. The latter is what your template will
> produce,
> and it is simply the concatenation of the string values of the array
> elements.
> 2. The Puppet DSL form of the value of $my_colloctors that you
> actually have is in all likelihood [['mon502.local', 'mon522.local']].
> That is, an array whose only element is an array of your colloctors
> (whatever those are). See my previous comments about hiera_array() vs.
> hiera().
>
>
>
>>
>> What am I missing here?
>>
>>
>
> If you really do want to collect collectors from multiple levels of your
> hierarchy, then you will need to flatten the result. Additionally, you
> will need to format it into your template yourself. There are many ways to
> do that, but one would be something like this:
>
> COLLECTORS = [<%= @my_collectors.map { |c| "'#{c.to_s}'"}.join(', ') %>]
>
>
> John
>
>
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