NamespaceKeyFunc is the default function for constructing etcd paths to a resource relative to prefix enforcing namespace rules.

NamespaceKeyRootFunc is the default function for constructing etcd paths to resource directories enforcing namespace rules.

NoNamespaceKeyFunc is the default function for constructing etcd paths to a resource relative to prefix without a namespace.

Creates a cacher on top of the given 'storageInterface'.

Etcd implements generic.Registry, backing it with etcd storage.