NewAddUpdateOpts constructs UpdateWithOpts for endpoint registration.

NewDeleteUpdateOpts constructs UpdateWithOpts for endpoint deletion.

NewManager creates an endpoint manager which implements the interface of 'Manager'.

Add indicates an Endpoint is added.

Delete indicates an existing address is deleted.

Endpoint represents a single address the connection can be established with.

Update describes a single edit action of an Endpoint.

UpdateWithOpts describes endpoint update (add or delete) together with etcd options (e.g.

Manager can be used to add/remove & inspect endpoints stored in etcd for a particular target.

Key2EndpointMap maps etcd key into struct describing the endpoint.