Validate backup size with flavor and volume size on restore operation

[Denis M.]

Trove doesn't do the validation of the backup size with flavor(for non-volume instances) and volume size(for cinder volumes).
This could cause the exception at guest side - not enough space.

API service should rize the exceptions when mentioned backup is too big for proposed volume/flavor

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/86300

[Nikhil Manchanda (slicknik)]

This issue is not release critical to hold juno-rc1 for. Moving to kilo-1.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/86300
Committed: https://git.openstack.org/cgit/openstack/trove/commit/?id=1611ba0b4f52469b4bdd2de2e55d8cc1af9d7621
Submitter: Jenkins
Branch: master

commit 1611ba0b4f52469b4bdd2de2e55d8cc1af9d7621
Author: Denis Makogon <email address hidden>
Date: Wed Sep 3 14:55:00 2014 +0300

    Validate backup size during restore

    Reasons:
     - A user is able to pass a backup that is larger
       than the volume/disk of the instance can handle.

    Changes:
     - Add validation to backup size according to volume
       or flavor size of the disk;
     - Add tests.

    Change-Id: Id549cff2e572a0ada632759bd9fcbbb67edf6ae0
    Closes-Bug: #1304603