Some background:

periodic-tripleo-ci-centos-9-scenario010-kvm-internal-standalone-master was timing out without any obvious errors during the tempest tests. The tempest run log showed something like this [1]
After holding the node and running the octavia tests one by one it was found that octavia_tempest_plugin.tests.scenario.v2.test_traffic_ops.TrafficOperationsScenarioTest.test_basic_http_traffic asks for password while connecting to the VM.


[1]
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_add_protocol_to_identity_provider [2.259778s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_add_protocol_to_identity_provider_unknown_mapping [1.402297s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_get_protocol_from_identity_provider [1.803398s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_identity_provider_create [1.058196s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_identity_provider_create_with_enabled_true [0.910964s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_identity_provider_create_with_remote_ids [1.278733s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_identity_provider_get [1.041299s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_identity_provider_list [2.095542s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_identity_provider_update [0.636193s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_list_protocols_from_identity_provider [0.800037s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_update_mapping_from_identity_provider_protocol [0.694822s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_identity_providers.IndentityProvidersTest.test_update_protocol_from_identity_provider_unknown_mapping [1.010456s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_authorize_request_token [0.514005s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_create_access_token [0.317166s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_create_and_show_consumer [0.108660s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_create_request_token [0.119455s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_delete_consumer [0.206763s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_list_access_tokens [0.752549s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_list_consumers [0.195132s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_list_roles_for_access_token [0.956535s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_revoke_access_token [0.658467s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_show_role_for_access_token [0.353016s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_oauth1_tokens.OAUTH1TokensTest.test_update_consumer [0.126218s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_create [0.413829s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_create_with_bad_attributes [0.061458s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_create_with_enabled_true [0.058180s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_create_with_relay_state_prefix [0.070476s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_create_without_mandatory_attributes [0.029584s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_get [0.098078s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_list [0.225213s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_update [0.128754s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_provider_update_with_bad_attributes_fails [0.117707s] ... ok
{0} keystone_tempest_plugin.tests.api.identity.v3.test_service_providers.ServiceProvidersTest.test_service_providers_in_token [1.031886s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_LC_pool_standalone_CRUD [16.379059s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_LC_pool_with_listener_CRUD [21.974895s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_RR_pool_standalone_CRUD [16.447280s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_RR_pool_with_listener_CRUD [27.381899s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_SIP_pool_standalone_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_SIP_pool_with_listener_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_SI_pool_standalone_CRUD [16.730534s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTPS_SI_pool_with_listener_CRUD [28.049915s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_LC_pool_standalone_CRUD [16.890820s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_LC_pool_with_listener_CRUD [28.378449s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_RR_app_cookie_pool_with_listener_CRUD [33.723264s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_RR_http_cookie_pool_with_listener_CRUD [28.558718s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_RR_pool_standalone_CRUD [17.500567s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_RR_pool_with_listener_CRUD [23.645414s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_RR_source_IP_pool_with_listener_CRUD [29.225861s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_SIP_pool_standalone_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_SIP_pool_with_listener_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_SI_pool_standalone_CRUD [18.281499s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_HTTP_SI_pool_with_listener_CRUD [24.640972s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_LC_pool_standalone_CRUD [18.260506s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_LC_pool_with_listener_CRUD [35.111413s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_RR_pool_standalone_CRUD [18.159978s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_RR_pool_with_listener_CRUD [29.778894s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_SIP_pool_standalone_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_SIP_pool_with_listener_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_SI_pool_standalone_CRUD [18.740304s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_PROXY_SI_pool_with_listener_CRUD [24.994727s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_LC_pool_standalone_CRUD [18.384179s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_LC_pool_with_listener_CRUD [30.781999s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_RR_pool_standalone_CRUD [18.716918s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_RR_pool_with_listener_CRUD [31.350315s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_SIP_pool_standalone_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_SIP_pool_with_listener_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_SI_pool_standalone_CRUD [19.548102s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_TCP_SI_pool_with_listener_CRUD [31.571980s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_LC_pool_standalone_CRUD [19.228116s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_LC_pool_with_listener_CRUD [32.856382s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_RR_pool_standalone_CRUD [19.982816s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_RR_pool_with_listener_CRUD [32.407748s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_RR_source_ip_pool_with_listener_CRUD [38.227862s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_SIP_pool_standalone_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_SIP_pool_with_listener_CRUD ... SKIPPED: Provider 'octavia' does not support a requested option: Amphora provider does not support SOURCE_IP_PORT algorithm.
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_SI_pool_standalone_CRUD [25.980488s] ... ok
{1} octavia_tempest_plugin.tests.scenario.v2.test_pool.PoolScenarioTest.test_UDP_SI_pool_with_listener_CRUD [48.575441s] ... ok