Not able to delete container

[hongbin]

Description
===========
Users won't be able to delete the container if there are some inconsistency on the container's network configuration.

Reproduce
=========
This issue can be reproduced by creating a container in Zun, then manually disconnect the container from its network in Docker.

$ zun run nginx
$ zun list
+--------------------------------------+-----------------+-------+---------+------------+------------------------------------------------+-------+
| uuid | name | image | status | task_state | addresses | ports |
+--------------------------------------+-----------------+-------+---------+------------+------------------------------------------------+-------+
| cb17fc03-61b2-4422-a1ab-f40546a53592 | tau-4-container | nginx | Running | None | 10.0.0.3, fd99:73e8:34a2:0:f816:3eff:fedb:5a28 | [80] |
+--------------------------------------+-----------------+-------+---------+------------+------------------------------------------------+-------+
$ openstack network list --name=private
+--------------------------------------+---------+----------------------------------------------------------------------------+
| ID | Name | Subnets |
+--------------------------------------+---------+----------------------------------------------------------------------------+
| d10b6356-e9fc-4308-9631-ae55785f554e | private | 7ca0d3d5-eeef-489f-8a40-ccb00456628c, a3162b3e-2f02-432e-a18c-78fe2774d026 |
+--------------------------------------+---------+----------------------------------------------------------------------------+
$ docker network disconnect d10b6356-e9fc-4308-9631-ae55785f554e zun-cb17fc03-61b2-4422-a1ab-f40546a53592
$ zun delete --stop cb17fc03-61b2-4422-a1ab-f40546a53592
....

Expected
========
The last command is able to delete the container

Actual
======
The container is not deleted. The following error in the zun-compute log: http://paste.openstack.org/show/718538/

[hongbin (hongbin034)]

This patch attempts to fix it: https://review.openstack.org/#/c/559261/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/559261
Committed: https://git.openstack.org/cgit/openstack/zun/commit/?id=da65b568164c0882448fa93dc2addc545716f930
Submitter: Zuul
Branch: master

commit da65b568164c0882448fa93dc2addc545716f930
Author: Hongbin Lu <email address hidden>
Date: Fri Apr 6 03:23:44 2018 +0000

    Fix an issue on deleteing container

    Closes-Bug: #1762091
    Change-Id: I3dd708b2b84e1cbdd5172bf0617b0db5d9ee508e

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/zun 2.0.0 release.