octavia_tempest_plugin.tests.scenario.v2.test_healthmonitor.HealthMonitorScenarioTest is failing on standalone sc10
job in network component line.[1]
https://logserver.rdoproject.org/openstack-component-network/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-scenario010-standalone-network-master/addb439/logs/undercloud/var/log/tempest/tempest_run.log.txt.gz
```
0} octavia_tempest_plugin.tests.scenario.v2.test_healthmonitor.HealthMonitorScenarioTest.test_LC_HTTP_healthmonitor_CRUD [43.107531s] ... FAILED
Captured traceback:
~~~~~~~~~~~~~~~~~~~
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/octavia_tempest_plugin/tests/scenario/v2/test_healthmonitor.py", line 60, in test_LC_HTTP_healthmonitor_CRUD
const.HEALTH_MONITOR_HTTP)
File "/usr/lib/python3.6/site-packages/octavia_tempest_plugin/tests/scenario/v2/test_healthmonitor.py", line 384, in _test_healthmonitor_CRUD
CONF.load_balancer.check_timeout)
File "/usr/lib/python3.6/site-packages/octavia_tempest_plugin/tests/waiters.py", line 79, in wait_for_status
raise exceptions.UnexpectedResponseCode(message)
tempest.lib.exceptions.UnexpectedResponseCode: Unexpected response code received
Details: (HealthMonitorScenarioTest:test_LC_HTTP_healthmonitor_CRUD) show_loadbalancer provisioning_status updated to an invalid state of ERROR
```
By digging further in the octavia health manager logs. [2], The instance is failed to build due to no valid host found
https://logserver.rdoproject.org/openstack-component-network/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-scenario010-standalone-network-master/addb439/logs/undercloud/var/log/containers/octavia/health-manager.log.txt.gz
```
|__Atom 'octavia-failover-loadbalancer-flow-octavia-failover-loadbalancer-flow-octavia-create-amp-for-lb-subflow-octavia-create-amphora-indb' {'intention': 'EXECUTE', 'state': 'SUCCESS', 'requires': {'loadbalancer_id': 'c4d18c96-c609-443a-87af-c7ac8ce74d3d'}, 'provides': '4876f14b-16ff-4d85-8d9c-92f4ce1ee99b'}
|__Flow 'octavia-failover-loadbalancer-flow-octavia-failover-loadbalancer-flow-octavia-create-amp-for-lb-subflow'
|__Flow 'octavia-failover-loadbalancer-flow-octavia-create-amp-for-failover-subflow'
|__Atom 'octavia.controller.worker.v1.tasks.network_tasks.GetVIPSecurityGroupID' {'intention': 'EXECUTE', 'state': 'SUCCESS', 'requires': {'loadbalancer_id': 'c4d18c96-c609-443a-87af-c7ac8ce74d3d'}, 'provides': 'afe72b59-03ae-4363-aaab-243f9b8f72dc'}
|__Atom 'octavia.controller.worker.v1.tasks.database_tasks.MarkAmphoraHealthBusy' {'intention': 'EXECUTE', 'state': 'SUCCESS', 'requires': {'amphora': <octavia.common.data_models.Amphora object at 0x7f2eaeaabf60>}, 'provides': None}
|__Atom 'octavia.controller.worker.v1.tasks.database_tasks.MarkAmphoraPendingDeleteInDB' {'intention': 'EXECUTE', 'state': 'SUCCESS', 'requires': {'amphora': <octavia.common.data_models.Amphora object at 0x7f2eaeaabf60>}, 'provides': None}
|__Atom 'octavia.controller.worker.v1.tasks.lifecycle_tasks.AmphoraToErrorOnRevertTask' {'intention': 'EXECUTE', 'state': 'SUCCESS', 'requires': {'amphora': <octavia.common.data_models.Amphora object at 0x7f2eaeaabf60>}, 'provides': None}
|__Flow 'octavia-failover-amphora-flow': octavia.common.exceptions.ComputeBuildException: Failed to build compute instance due to: {'code': 500, 'created': '2021-07-07T13:38:39Z', 'message': 'No valid host was found. ', 'details': 'Traceback (most recent call last):\n File "/usr/lib/python3.6/site-packages/nova/conductor/manager.py", line 1519, in schedule_and_build_instances\n instance_uuids, return_alternates=True)\n File "/usr/lib/python3.6/site-packages/nova/conductor/manager.py", line 881, in _schedule_instances\n return_alternates=return_alternates)\n File "/usr/lib/python3.6/site-packages/nova/scheduler/client/query.py", line 42, in select_destinations\n instance_uuids, return_objects, return_alternates)\n File "/usr/lib/python3.6/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations\n return cctxt.call(ctxt, \'select_destinations\', **msg_args)\n File "/usr/lib/python3.6/site-packages/oslo_messaging/rpc/client.py", line 179, in call\n transport_options=self.transport_options)\n File "/usr/lib/python3.6/site-packages/oslo_messaging/transport.py", line 128, in _send\n transport_options=transport_options)\n File "/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 682, in send\n transport_options=transport_options)\n File "/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 672, in _send\n raise result\nnova.exception_Remote.NoValidHost_Remote: No valid host was found. \nTraceback (most recent call last):\n\n File "/usr/lib/python3.6/site-packages/oslo_messaging/rpc/server.py", line 241, in inner\n return func(*args, **kwargs)\n\n File "/usr/lib/python3.6/site-packages/nova/scheduler/manager.py", line 190, in select_destinations\n raise exception.NoValidHost(reason="")\n\nnova.exception.NoValidHost: No valid host was found. \n\n'}
```
From nova-conductor logs [3]
```
2021-07-07 13:38:38.266 7 ERROR nova.conductor.manager [req-f37eed4b-c1f3-4ec6-a221-d7abd376cb31 dd2a84a271ad47febef78d3330df7f5a d7c948e99c09444fbd0b936358951c69 - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found.
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
return func(*args, **kwargs)
File "/usr/lib/python3.6/site-packages/nova/scheduler/manager.py", line 190, in select_destinations
raise exception.NoValidHost(reason="")
nova.exception.NoValidHost: No valid host was found.
```
till we found what is causing it?, we are moving the tests to skip list.
Links:
[1]. https://logserver.rdoproject.org/openstack-component-network/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-scenario010-standalone-network-master/addb439/logs/undercloud/var/log/tempest/tempest_run.log.txt.gz
[2]. https://logserver.rdoproject.org/openstack-component-network/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-scenario010-standalone-network-master/addb439/logs/undercloud/var/log/containers/octavia/health-manager.log.txt.gz
[3]. https://logserver.rdoproject.org/openstack-component-network/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-scenario010-standalone-network-master/addb439/logs/undercloud/var/log/containers/nova/nova-conductor.log.txt.gz
Since this job is not part of component promotion criteria Adding this bug as a promoter blocker to get traction and get it fixed.