This allows operating on Nova flavors with non-integer ids
by adding a new str_id field to the view that always contains the
unicode flavor id. The current id field will now contain a value
only when the flavor's id can be cast to int, otherwise it will be
None. Validation of flavor id when querying a flavor or creating an
instance has been updated to include non-empty strings in addition to
integers.
This will require a patch to python-troveclient to properly fallback
to str_id in absence of the integer id:
https://review.openstack.org/#/c/123301/
Change-Id: Ie9cfefc6127bc76783cdf9668636342d7590b308
Closes-bug: #1333852
21fee8c3c5