Create roles here, in either the Role Ruby DSL (.rb) or JSON (.json) files. To install roles on the server, use knife. For example, create roles/base_example.rb: name "base_example" description "Example base role applied to all nodes." # List of recipes and roles to apply. Requires Chef 0.8, earlier versions use 'recipes()'. #run_list() # Attributes applied if the node doesn't have it set already.