Octavia tempest "octavia-v2-dsvm-scenario" gate fails

[Arkady Shtempler]

Zuul fails for octavia-tempest-plugin test patches.
Seems that "octavia-v2-dsvm-scenario" gate constantly fails with: Failure or Timeout.

Here are few test patches:
https://review.opendev.org/c/openstack/octavia-tempest-plugin/+/755281
https://review.opendev.org/c/openstack/octavia-tempest-plugin/+/777412
https://review.opendev.org/c/openstack/octavia-tempest-plugin/+/755050

The Error (in case of failure) is:
2021-06-02 07:22:31.787811 | controller | 2021-06-02 06:56:01,451 144223 INFO [octavia_tempest_plugin.services.load_balancer.v2.base_client] Cleanup complete for member ade7500e-480c-4597-a53f-45518f2e477f...
2021-06-02 07:22:31.787814 | controller |
2021-06-02 07:22:31.787817 | controller |
2021-06-02 07:22:31.787821 | controller | octavia_tempest_plugin.tests.scenario.v2.test_ipv6_traffic_ops.IPv6TrafficOperationsScenarioTest.test_tcp_ipv6_vip_mixed_ipv4_ipv6_members_traffic[id-a4e8d5d1-03d5-4252-9300-e89b9b2bdafc]
2021-06-02 07:22:31.787824 | controller | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2021-06-02 07:22:31.787827 | controller |
2021-06-02 07:22:31.787831 | controller | Captured traceback:
2021-06-02 07:22:31.787834 | controller | ~~~~~~~~~~~~~~~~~~~
2021-06-02 07:22:31.787837 | controller | Traceback (most recent call last):
2021-06-02 07:22:31.787841 | controller |
2021-06-02 07:22:31.787844 | controller | File "/opt/stack/tempest/.tox/tempest/lib/python3.8/site-packages/octavia_tempest_plugin/tests/scenario/v2/test_ipv6_traffic_ops.py", line 194, in test_tcp_ipv6_vip_mixed_ipv4_ipv6_members_traffic
2021-06-02 07:22:31.787849 | controller | self._test_ipv6_vip_mixed_ipv4_ipv6_members_traffic(const.TCP, 81,
2021-06-02 07:22:31.787853 | controller |
2021-06-02 07:22:31.787856 | controller | File "/opt/stack/tempest/.tox/tempest/lib/python3.8/site-packages/octavia_tempest_plugin/tests/scenario/v2/test_ipv6_traffic_ops.py", line 184, in _test_ipv6_vip_mixed_ipv4_ipv6_members_traffic
2021-06-02 07:22:31.787860 | controller | self.check_members_balanced(self.lb_vip_address,
2021-06-02 07:22:31.787863 | controller |
2021-06-02 07:22:31.787870 | controller | File "/opt/stack/tempest/.tox/tempest/lib/python3.8/site-packages/octavia_tempest_plugin/tests/validators.py", line 282, in check_members_balanced
2021-06-02 07:22:31.787874 | controller | self._wait_for_lb_functional(
2021-06-02 07:22:31.787877 | controller |
2021-06-02 07:22:31.787880 | controller | File "/opt/stack/tempest/.tox/tempest/lib/python3.8/site-packages/octavia_tempest_plugin/tests/validators.py", line 423, in _wait_for_lb_functional
2021-06-02 07:22:31.787884 | controller | raise Exception(message)
2021-06-02 07:22:31.787887 | controller |
2021-06-02 07:22:31.787890 | controller | Exception: Server [fd9f:a880:3b61:1::3da] on port 81 did not begin passing traffic within the timeout period. Failing test.
2021-06-02 07:22:31.787894 | controller |
2021-06-02 07:22:31.787897 | controller |
2021-06-02 07:22:31.787900 | controller | Captured pythonlogging:

[Michael Johnson (johnsom)]

Octavia has been migrated to Storyboard for bug tracking.