Puppet users - Nov 2013 - How to parse same template with differen values each time

Hi,
I need to parse the a template, with different values, to generate 
different config files in each country I need to config.
The template is used inside a define, this define is used one time for each 
country.
I need that each time y execute this define, the vars used by the template 
have different values, depending on the parameter "country"

I cant find a nice solution for this (like using Hiera).
Actually I use a custom function that loads a key/value file on my scope 
each time y execute de define, and I change the key/value file using the 
parameter "country".

*Example:*

define tomcat::context(
    $path,
    $country,
){

   * //My custom function I want to replace*
    dynamicVariableCreator("context_${country}.conf")

    //This template needs to generate different content for each country
    file {"${path}_${country}.xml":
       content => template("context"),
       ensure  => present,
    }

}

Thanks

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Hi,

you can use a hash, either from hiera or in your manifest.

$config = {
  "country1" => { "option1" => "value1",
"option2" => ... },
  "country2" => { "option1" => ... }
  ...
}

In the template, you can access it like this e.g.

<% data = config[country] -%>
...
  <ListenAddress="<%= data["option3"] %>">
...

Careful, this is untested example code.

HTH,
Felix

On 11/20/2013 02:56 PM, Jordan Cabral wrote:
> Hi,
> I need to parse the a template, with different values, to generate
> different config files in each country I need to config.
> The template is used inside a define, this define is used one time for
> each country.
> I need that each time y execute this define, the vars used by the
> template have different values, depending on the parameter
"country"
> 
> I cant find a nice solution for this (like using Hiera).
> Actually I use a custom function that loads a key/value file on my scope
> each time y execute de define, and I change the key/value file using the
> parameter "country".
> 
> _Example:_
> 
> define tomcat::context(
>     $path,
>     $country,
> ){
> 
>    *//My custom function I want to replace*
>     dynamicVariableCreator("context_${country}.conf")
> 
>     //This template needs to generate different content for each country
>     file {"${path}_${country}.xml":
>        content => template("context"),
>        ensure  => present,
>     }
> 
> }
> 
> Thanks
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I tried that, but in that way I cant override internal vars of the hash 
(option1) in different files of the hiera hierarchy,
because I need to ask to hiera for the entire hash.


El miércoles, 20 de noviembre de 2013 13:16:50 UTC-3, Felix.Frank
escribió:
>
> Hi, 
>
> you can use a hash, either from hiera or in your manifest. 
>
> $config = { 
>   "country1" => { "option1" =>
"value1", "option2" => ... },
>   "country2" => { "option1" => ... } 
>   ... 
> } 
>
> In the template, you can access it like this e.g. 
>
> <% data = config[country] -%> 
> ... 
>   <ListenAddress="<%= data["option3"] %>"> 
> ... 
>
> Careful, this is untested example code. 
>
> HTH, 
> Felix 
>
> On 11/20/2013 02:56 PM, Jordan Cabral wrote: 
> > Hi, 
> > I need to parse the a template, with different values, to generate 
> > different config files in each country I need to config. 
> > The template is used inside a define, this define is used one time for
> > each country. 
> > I need that each time y execute this define, the vars used by the 
> > template have different values, depending on the parameter
"country"
> > 
> > I cant find a nice solution for this (like using Hiera). 
> > Actually I use a custom function that loads a key/value file on my
scope
> > each time y execute de define, and I change the key/value file using
the
> > parameter "country". 
> > 
> > _Example:_ 
> > 
> > define tomcat::context( 
> >     $path, 
> >     $country, 
> > ){ 
> > 
> >    *//My custom function I want to replace* 
> >     dynamicVariableCreator("context_${country}.conf") 
> > 
> >     //This template needs to generate different content for each
country
> >     file {"${path}_${country}.xml": 
> >        content => template("context"), 
> >        ensure  => present, 
> >     } 
> > 
> > } 
> > 
> > Thanks 
>
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Yes, that''s a limitation you get from relying on hashes in your
hierarchy. Tough call.

Of course, you *could* override the entire hash where necessary. Or, you
could cut out the top level of the hash and make each hash key a hiera
key instead:

countrydata_us:
  option1:
  option2:
  ...
countrydata_uk:
  option1:
  ...
...

This way you may get away with overriding only select countries.

But I suggest you share more information about your data model,
especially wrt. your hierarchical overriding needs. Perhaps we can find
a more sensible approach for the problem as a whole.

Cheers,
Felix

On 11/20/2013 07:31 PM, Jordan Cabral wrote:
> I tried that, but in that way I cant override internal vars of the hash
> (option1) in different files of the hiera hierarchy,
> because I need to ask to hiera for the entire hash.
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