discovery

type Discoverable interface {
	Start() error
	Stop() error
}

type Discoverer interface {
	Discover(svcName string, add, remove func(api.Remote)) Getter
}

type Getter interface {

	// Get returns all of the currently known remotes.
	// TODO: Support some kind of filters here, like region and AZ.
	// TODO: Update callers to use add/remove callbacks and remove this method.
	Get() ([]api.Remote, error)

	// Stop terminates this getter. It should not call the remove callback for
	// any known remotes. Get will return no results after this is called.
	Stop() error
}