MakeEtcdItemKey constructs etcd paths to a resource relative to prefix enforcing namespace rules.

MakeEtcdListKey constructs etcd paths to resource directories enforcing namespace rules.

NewRegistry creates an etcd registry.

ServicePath is the path to service resources in etcd.

Registry implements BindingRegistry, ControllerRegistry, EndpointRegistry, MinionRegistry, PodRegistry and ServiceRegistry, backed by etcd.