Service registry update fails

[Dimitri Mazmanov]

Service registry get updated successfully, however while casting to the Service object the following error occurs:

2016-08-16 12:16:49.032 24063 ERROR kingbird.engine.service [req-5cf03fd0-82d4-4381-af1b-fa28ea1da81b - - - - -] Service 37c5df6b-f2ae-4eae-b719-1fd35f20ac0c update failed: Field `deleted_at' cannot be None
2016-08-16 12:17:49.032 24063 ERROR kingbird.engine.service [req-a64fb34f-f7cc-4885-87da-07a0ab2c7a9c - - - - -] Service 37c5df6b-f2ae-4eae-b719-1fd35f20ac0c update failed: Field `deleted_at' cannot be None
2016-08-16 12:18:49.035 24063 ERROR kingbird.engine.service [req-628f0c0e-d38b-4af5-a23b-e29accc611c3 - - - - -] Service 37c5df6b-f2ae-4eae-b719-1fd35f20ac0c update failed: Field `deleted_at' cannot be None
2016-08-16 12:19:49.026 24063 ERROR kingbird.engine.service [req-e9830dcc-c7aa-4f50-8eb6-0a20d369a83d - - - - -] Service 37c5df6b-f2ae-4eae-b719-1fd35f20ac0c update failed: Field `deleted_at' cannot be None

This is due to the object's deleted_at property not defaulting to None.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/355903

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/355903
Committed: https://git.openstack.org/cgit/openstack/kingbird/commit/?id=d99fdbc304861f02224fd844eeda6a48bc6dc2aa
Submitter: Jenkins
Branch: master

commit d99fdbc304861f02224fd844eeda6a48bc6dc2aa
Author: Dimitri Mazmanov <email address hidden>
Date: Tue Aug 16 14:45:54 2016 +0200

    Fix error while updating service registry

    Allow null values for deleted_at and deleted properties of the Service
    object.

    Change-Id: I14de428c5498a8a69404a0bca3c2da2b0ff45d90
    Closes-Bug: #1613697