NewTarget instantiates a new Target, rooted at a particular location.

NewWatcher instantiates a new Watcher.

Target is an implementation of router.Targeter using the docker/libkv library for watching data in etcd, zookeeper, and consul.

Watcher provides a means of watching for changes to interesting configuration in the backing database.

Reactor is a type that can react to state changes on keys in a directory.