Several nova tempest tests are failed because of ssh timeout

[Sofiia Andriichenko]

Detailed bug description:
ISO: http://paste.openstack.org/show/494405/
Configuration: [9.0][MOSQA] Tempest 9.0 (VLAN_IRONIC_CEPH_GLANCE_CEPH-Tempest,Ceph,Ironic,SSL(api))

Steps to reproduce:
Deploy ISO in configuration see (Detailed bug description)

Expected results:
Test is passed

Actual result:
Test is Failed

Reproducibility:
--

Workaround:
---

Impact:
---

Description of the environment:
See (Detailed bug description)

Additional information:

7 nova tempest tests are failed because of not opportunity connect via ssh

Test failed:
tempest.api.compute.servers.test_create_server.ServersTestJSON.test_host_name_is_same_as_server_name
tempest.api.compute.servers.test_create_server.ServersTestJSON.test_verify_created_server_vcpus
tempest.api.compute.servers.test_create_server.ServersTestManualDisk.test_host_name_is_same_as_server_name
tempest.api.compute.servers.test_create_server.ServersTestManualDisk.test_verify_created_server_vcpus
tempest.api.compute.servers.test_create_server.ServersWithSpecificFlavorTestJSON.test_verify_created_server_ephemeral_disk
tempest.api.compute.servers.test_server_actions.ServerActionsTestJSON.test_rebuild_server
tempest.api.compute.volumes.test_attach_volume.AttachVolumeTestJSON.test_attach_detach_volume

Trace of bugs have similar output:
Error Message

test failed

Stacktrace

Traceback (most recent call last):
  File "tempest/api/compute/servers/test_create_server.py", line 136, in test_host_name_is_same_as_server_name
    self.assertTrue(linux_client.hostname_equals_servername(self.name))
  File "tempest/common/utils/linux/remote_client.py", line 55, in hostname_equals_servername
    actual_hostname = self.exec_command("hostname").rstrip()
  File "tempest/common/utils/linux/remote_client.py", line 44, in exec_command
    return self.ssh_client.exec_command(cmd)
  File "tempest/lib/common/ssh.py", line 118, in exec_command
    ssh = self._get_ssh_connection()
  File "tempest/lib/common/ssh.py", line 88, in _get_ssh_connection
    password=self.password)
tempest.lib.exceptions.SSHTimeout: Connection to the 10.109.4.150 via SSH timed out.
User: cirros, Password: F4^9$VHaapajmF9

[Sofiia Andriichenko (sandriichenko)]

also reproduced on test scenario:

tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_pause_unpause
tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_rebuild
tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_resize
tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_stop_start
tempest.scenario.test_network_advanced_server_ops.TestNetworkAdvancedServerOps.test_server_connectivity_suspend_resume
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_connectivity_between_vms_on_different_networks
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_hotplug_nic
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_network_basic_ops
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_subnet_details
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_subnet_details
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_update_router_admin_state
tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_update_instance_port_admin_state
tempest.scenario.test_security_groups_basic_ops.TestSecurityGroupsBasicOps.test_in_tenant_traffic

[Sergii Turivnyi (sturivnyi)]

http://paste.openstack.org/show/494544/