From Train release Glance has added support [0][1] to configure multiple stores
of same or different types. This patch enables developers to configure
multiple file stores for glance. In order to configure multiple file stores
user need to set below options in local.conf
GLANCE_ENABLE_MULTIPLE_STORES=True/False
To enable multiple stores of glance.
GLANCE_MULTIPLE_FILE_STORES=veryfast,fast,cheap,verycheap,slow,veryslow
Comma separated list of store identifiers.
GLANCE_DEFAULT_BACKEND=fast
Default glance store in which image should be stored if store identifier not
specified explicilty. Should be one of the store identifier from
GLANCE_MULTIPLE_FILE_STORES config option.
NOTE: This support is added so that we can start adding tempest/CI tests for
glance multiple stores.
[0] 515412b59f5b3af07a1787b9f8e85a4d656d3e1c
[1] https://docs.openstack.org/glance/train/admin/multistores.html
Change-Id: I494f77555cfe9115356ce0ee75c7d7f192141447
6f91da9a2d