Plug-in Usage
A plug-in provides additional capability to the Grails runtime and can be created with the create-plugin command:grails create-plugin simple
This will create a plug-in project which can then be packaged with package-plugin:And installed into Grails applications with install-plugin:grails install-plugin ../grails-simple-0.1.zip
Refer to the user guide topic on Plug-ins for more information.