Every Rudy routine is associated to a handler. There are four standard handler types: Startup, Shutdown, Reboot, and Passthrough. The first three are associated to routines of the same same. All other routines are handled by Rudy::Routines::Passthrough.
An individual routine is made up of various actions. Each action is associated to one of the following handlers: depends, disk, script, user. See each handler for the list of actions it is responsible for.
Add a routine handler to @@routine.
Returns the value of handler.
Returns the value in the @@handler associated to the key name if it exists, otherwise it returns nil
Returns the value in the @@routine associated to the key routine_name if it exists, otherwise it returns Rudy::Routines::Passthrough