On 9/19/12 10:43 PM, Gonzalo Servat wrote:
> On Thu, Sep 20, 2012 at 3:37 PM, Garrett Honeycutt
> <garr...@puppetlabs.com <mailto:garr...@puppetlabs.com>> wrote:
> 
>     No need at all to use a different puppet master, you could just use
>     environments[1]. When you want to test a system again a different
>     environment, staging in this example, you can run `puppet agent -t
>     --environment=staging`.
> 
> 
> Yep, I need to move towards this. I guess this means I need to go
> through all my templates and put hiera variables for everything.
>  
> 
>     Hiera[2] is meant to solve this. You might have staging.yaml and
>     production.yaml that specify values for mysql_innodb_buffer_pool_size.
> 
>     In your code you could have
> 
>       $innodb_buffer_pool_size = hiera('mysql_innodb_buffer_pool_size')
> 
>     and then use <%= innodb_buffer_pool_size %> in a template for your
>     my.cnf.
> 
> 
> Can one call hiera() from within the ERB templates?
> 
> - Gonzalo

No, you call it from the manifests. Recommend reading the hiera
documentation. Also you can see an example with my dnsclient module[1].

[1] -
https://github.com/ghoneycutt/puppet-dnsclient/tree/new_design_pattern_with_hiera

-g


-- 
Garrett Honeycutt

206.414.8658
http://puppetlabs.com

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