On our Openstack Ocata setup, On selecting any flavor and say update metadata, it says "You can specify resource metadata by moving items from the left column to the right column. In the left column, there are metadata definitions from the Glance Metadata Catalog".

However, I don't see any resource metadata on left side, how to get resource metadata for the Flavors and images..

Also,if someone please explains here what is metadata all about and how can it be used it will be helpful.

Thanks Tijo