convert hiera value to string array using lookup in hiera

[Tidhar Klein Orbach]

Hi,

I have a hiera file that belongs to a server group. in that file there is a key that expects a list of services.

for example

job_name: "my-job"

feature:

  services:

    - 'foo'

    - 'bar'

    - 'baz'

I want to be able to override the values, so I tried to define a default key like:

feature::services:: 'foo,bar,baz'

and then use it:

job_name: "my-job"

feature:

   services: "%{lookup(feature::services)}"

I tried different value variations:

feature::services:: foo,bar,baz 

feature::services:: ['foo','bar','baz'] 
and  also using

lookup_options:
feature::services:
convert_to:
- "Array"
- true

but it seems I can't convert the value to string array.

is it possible at all? if so, how can I do it?

thanks,

Tidhar

[Martin Alfke]

Hi,

Lookup always returns strings.

You can use alias to retrieve the original value data type.

https://www.puppet.com/docs/puppet/7/hiera_merging.html#alias-function

Hth,

Martin

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[Tidhar Klein Orbach]

Thank you Martin, it's exactly what I was looking for.

Tidhar

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