Description of configuration options for metadata

Configuration option=Default value	(Type) Description
auth_strategy=keystone	(StrOpt) The type of authentication to use
auth_strategy=keystone	(StrOpt) The type of authentication to use
metadata_proxy_socket=$state_path/metadata_proxy	(StrOpt) Location of Metadata Proxy UNIX domain socket
metadata_router_id=None	(StrOpt) Virtual metadata router ID.