NewController returns a new vhost controller.

ErrResourceExists is used as part of the Event 'reason' when a vhost 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 vhost is synced successfully.

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

Controller is the controller implementation for vhost resources.