Puppet users - Dec 2013 - Interpolating hiera variables in hiera itself

Is it possible to reuse hiera variables within hiera itself? We have some 
cases where we have a value that needs to be changed before we deploy some 
code - it''s not ideal, but for now it has to be done this way. The
value is
used within a hash structure that is somewhat complex, and this value is 
the only component of that hash that needs to change.

What I was hoping is that I could do something like this:

---
value: ''1.1.0''

haproxy_frontends:
  http-in:
    ipaddress: ''*''
    ports: ''9000''
    options:
      acl:
        - "review_path url_sub version=%{game_version}"
      use_backend:
        - ''review if review_path''
      default_backend: ''current''
  
However, it doesn''t seem like this is possible. If I try to do this,
when
''haproxy_frontends'' is used, nothing is output for
%{game_version}.

Is there a way to actually do this?

Thanks,
Guy

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Well, wouldn''t you know it but I just discovered the hiera() lookup 
function which does exactly what I want.

On Friday, 13 December 2013 11:39:27 UTC-8, Guy Knights
wrote:
>
> Is it possible to reuse hiera variables within hiera itself? We have some 
> cases where we have a value that needs to be changed before we deploy some 
> code - it''s not ideal, but for now it has to be done this way. The
value is
> used within a hash structure that is somewhat complex, and this value is 
> the only component of that hash that needs to change.
>
> What I was hoping is that I could do something like this:
>
> ---
> value: ''1.1.0''
>
> haproxy_frontends:
>   http-in:
>     ipaddress: ''*''
>     ports: ''9000''
>     options:
>       acl:
>         - "review_path url_sub version=%{game_version}"
>       use_backend:
>         - ''review if review_path''
>       default_backend: ''current''
>   
> However, it doesn''t seem like this is possible. If I try to do
this, when
> ''haproxy_frontends'' is used, nothing is output for
%{game_version}.
>
> Is there a way to actually do this?
>
> Thanks,
> Guy
>
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Would be great if you could post an example here :-) I cannot see yet how 
to use hiera() here.

On Friday, December 13, 2013 8:57:42 PM UTC+1, Guy Knights
wrote:
>
> Well, wouldn''t you know it but I just discovered the hiera()
lookup
> function which does exactly what I want.
>
> On Friday, 13 December 2013 11:39:27 UTC-8, Guy Knights wrote:
>>
>> Is it possible to reuse hiera variables within hiera itself? We have
some
>> cases where we have a value that needs to be changed before we deploy
some
>> code - it''s not ideal, but for now it has to be done this way.
The value is
>> used within a hash structure that is somewhat complex, and this value
is
>> the only component of that hash that needs to change.
>>
>> What I was hoping is that I could do something like this:
>>
>> ---
>> value: ''1.1.0''
>>
>> haproxy_frontends:
>>   http-in:
>>     ipaddress: ''*''
>>     ports: ''9000''
>>     options:
>>       acl:
>>         - "review_path url_sub version=%{game_version}"
>>       use_backend:
>>         - ''review if review_path''
>>       default_backend: ''current''
>>   
>> However, it doesn''t seem like this is possible. If I try to do
this, when
>> ''haproxy_frontends'' is used, nothing is output for
%{game_version}.
>>
>> Is there a way to actually do this?
>>
>> Thanks,
>> Guy
>>
>
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