[chef] Re: Re: Defining dynamic global custom variables once for all recipes during chef run

[Mathew Crane < >]

Thanks. I made a library instance method to access these attributes dynamically. This solves the code duplication issue. 

However, I'm still unaware of a good way to 'set' these variables automatically via a library so that they become available to all recipes within the Chef run. Ideally the variables become available to all cookbooks that have 'depend "helper-cookbook"' in metadata.rb, and redundant calls to the Chef API are eliminated. Is this even possible?

How it exists currently:

# cookbooks/helper-cookbook/libraries/helper-module.rb

module helper

  def my_helper_module

    ...code...

    return env, server

  end

end

reference: http://stackoverflow.com/questions/22078318/access-node-attributes-in-chef-library

# cookbooks/dependent-cookbook/metadata.rb:

depends "helper-cookbook"

# cookbooks/dependent-cookbook/recipes/default.rb:

env, server = my_helper_module

Any tips or suggestions?

On Tue, Apr 28, 2015 at 5:21 PM, Tensibai Zhaoying < " target="_blank"> > wrote:

I don't know if it's the best way but we so this with an Env cookbook with many attributes files, one common for all invariable values and one file per Env starting With 'return unless node.chef_environment == "target_env"'

Le 28 avr. 2015 19:28, Mathew Crane < " target="_blank"> > a écrit :

Scenario:

- Two custom variables are dynamically assigned based on node.chef_environment via a targeted search and subsequent for-loop against a max of 10 top-level data bag items.

- Both variables are a DataBagItem.

- They are defined within any recipe that needs these values. 

- Setting this in every recipe doesn't scale.

Is there a way to define these variables once in a separate, single-purpose cookbook recipe, and have them reliably made available to all recipes within the chef run?

What is the best direction for this? Setting attributes via attributes/default.rb or creating a custom library with a ruby block?

Thanks!

-Mat