agent

type Agent struct {
	Backend DiscoveryBackend
	Address string
}

type Args struct {
	Name  string
	Addr  string
	Attrs map[string]string
}

type DiscoveryBackend interface {
	Subscribe(name string) (UpdateStream, error)
	Register(name string, addr string, attrs map[string]string) error
	Unregister(name string, addr string) error
}

type EtcdBackend struct {
	Client *etcd.Client
}

type ServiceUpdate struct {
	Name    string
	Addr    string
	Online  bool
	Attrs   map[string]string
	Created uint
}

type UpdateStream interface {
	Chan() chan *ServiceUpdate
	Close()
}