
Previously, the openstack::nova::controller class could only use Nova's in-process cache for storing information such as nova-consoleauth session tokens. This patch adds a new parameter called memcached_servers that allows Nova to use memcached instead of the in-process cache. Defaults to false to continue having Nova use the in-process cache for backwards compatibility. Change-Id: Ic61962e6ebf588e5724d238954ec611b0bbcbd05