base.rb

name 'base'
description 'Base role for all nodes and roles'
run_list 'recipe[apt]',
         'recipe[build-essential]'

mongodb.rb

name 'mongodb'
description 'A single MongoDB server'
run_list 'role[base]',
         'recipe[mongodb::10gen_repo]',
         'recipe[mongodb::replicaset]'

RESULT

resolving cookbooks for run list: ["apt", "build-essential", "chef-client::delete_validation", "chef-client", "mongodb::10gen_repo", "mongodb::replicaset"]
 
 Synchronizing Cookbooks:
 
   - apt
 
   - build-essential
 
   - chef-client
 
   - cron
 
   - logrotate
 
   - mongodb
 
   - yum
 
   - aws
 
 Compiling Cookbooks...
 
 [2013-10-16T22:41:57+00:00] WARN: Cloning resource attributes for execute[apt-get update] from prior resource (CHEF-3694)
 [2013-10-16T22:41:57+00:00] WARN: Previous execute[apt-get update]: /var/chef/cache/cookbooks/apt/recipes/default.rb:39:in `from_file'
 [2013-10-16T22:41:57+00:00] WARN: Current  execute[apt-get update]: /var/chef/cache/cookbooks/mongodb/recipes/10gen_repo.rb:28:in `from_file'
 Recipe: mongodb::default
 
   * chef_gem[mongo] action install

   .....