[chef] Re: Wrapper Cookbook Attribute Overwrite Question

[Rajiv Ranganath < >]

Have you considered using Chef Environments instead?

Something along the following lines.

```
#
# chef/environments/devel.rb
#
name 'devel'

description 'Development Environment'

default_attributes(
  'operations' => {
    'tomcat_instances' => {
      :dev => {
        :port => '80',
        :sites => %w[Dev]
      }
    }
  }
)
```

```
#
# chef/environments/qa.rb
#
name 'qa'

description 'QA Environment'

default_attributes(
  'operations' => {
    'tomcat_instances' => {
      :QA => {
        :port => '80',
        :sites => %w[Master Staging]
      }
    }
  }
)
```

I would urge you to take a look at the following link that tries to
clarify the definitions of - library, application, wrapper and base
cookbook patterns.

http://blog.vialstudios.com/the-environment-cookbook-pattern/

Chef attribute precedence and cookbook patterns are **tied at the hip**,
so please develop the intuition on how they are related.

Also **don't** confuse environment cookbook pattern to Chef
environments. They are very different ideas unfortunately named with
similar terminology.

The best way to think of environment cookbook is as an entry point into
your Chef Run. It provides something equivalent to what `int main() {
... }` function does in a C program.

Best,
Rajiv

On Thu, Jun 12, 2014 at 9:15 AM, David A. Williams 
<
 >
 wrote:
> Hello,
>
> Chef 11.2.4
>
> I'm setting up a wrapper cookbook to overwrite some node attributes.  
> However it appears when that attribute is a hash it runs both configs.  Has 
> anyone experienced this?
>
> For example in my base cookbook, I have
> attributes/default.rb
> default['operations']['tomcat_instances']  = {:Dev  => { :port => '80', 
> :sites => %w[Dev] }}
>
> And in my wrapper cookbook, I have
> recipes/raven_server.rb
> node.set['operations']['tomcat_instances'] = {:QA=> { :port => '80', :sites 
> => %w[Master Staging] }}
>
> After the chef run.  I have two Tomcat instances set up instead of just one.
>
> Thanks for your help,
>
> David Williams
>
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