Comment 4 for bug 1697629

Reviewed: https://review.openstack.org/481515
Committed: https://git.openstack.org/cgit/openstack/masakari/commit/?id=a1bbcd4d985439aa94cc95fcb19c08e30a584d30
Submitter: Jenkins
Branch: master

commit a1bbcd4d985439aa94cc95fcb19c08e30a584d30
Author: Dinesh Bhor <email address hidden>
Date: Wed Jul 5 17:05:55 2017 +0530

    Fix 'host delete' delete's host of another segment

    Currently masakari delete's the host which doesn't belong to the
    segment requested in the 'host delete' API's request URL because
    host was not getting filtered on the basis of failover_segment_id.

    Filtered the host based on 'failover_segment_id'. Added a new
    exception 'HostNotFoundUnderFailoverSegment' which will be raised
    from db API 'host_get_by_uuid' if the host is not found under the
    requested failover_segment. This exception is not caught at API
    controller layer as it is a subclass of 'HostNotFound' which is
    already caught in controller.

    Closes-Bug: #1697629
    Change-Id: I3d3e8cffa2f8ea443ccd13b1db61fda55bc07a0d