Name/value pairs from cookbook attributes to dynamic resource attributes

attributes.rb

# attributes for the iis_pool
default['config']['setting']['runtime_version'] = '12'
default['config']['setting']['thirty_two_bit'] = false
default['config']['setting']['max_proc'] = 4

dyanmic-recipe-works.rb

# same result as hardcoded-recipe.rb but now driven by Attributes
iis_pool 'MyAppPool' do
  node['config']['setting'].each do |setting, value|
    send(setting, value)
  end
  action :config
end 

dynamic-recipe-fail.rb

# outputs the same as hardcoded-recipe.rb but does *not* work
iis_pool 'MyAppPool' do
  node['config']['setting'].each do |setting, value|
    "#{setting}" "#{value}"
  end
  action :config
end 

hardcoded-recipe.rb

# if nothing was dynamic
iis_pool 'MyAppPool' do
  runtime_version '12'
  max_proc 4
  thirty_two_bit false
  action :config
end