NewController returns a new sample controller.

ErrResourceExists is used as part of the Event 'reason' when a Foo fails to sync due to a Deployment of the same name already existing.

MessageResourceExists is the message used for Events when a resource fails to sync due to a Deployment already existing.

MessageResourceSynced is the message used for an Event fired when a Foo is synced successfully.

SuccessSynced is used as part of the Event 'reason' when a Foo is synced.

Controller is the controller implementation for Foo resources.