
Add docker_volume_size as an option during cluster create. If not given, the default is taken from the cluster template. Add docker_volume_size in the Cluster object and use that instead of the one from ClusterTemplate. Update both magnum and magnum cli documentation to reflect the above changes. Partial-Bug: #1697648 Implements: blueprint flatten-attributes Change-Id: Ic6d77e6fdf5b068fa5319b238f4fd98b4d499be4