diff --git a/releasenotes/notes/add-list-version-to-identity-client-944cb7396088a575.yaml b/releasenotes/notes/add-list-version-to-identity-client-944cb7396088a575.yaml
new file mode 100644
index 0000000..dd66ff5
--- /dev/null
+++ b/releasenotes/notes/add-list-version-to-identity-client-944cb7396088a575.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Add versions_client module for identity service.
+    This new module provides list_versions() method which shows API versions
+    from Identity service.
diff --git a/releasenotes/notes/add-tempest-lib-remote-client-adbeb3f42a36910b.yaml b/releasenotes/notes/add-tempest-lib-remote-client-adbeb3f42a36910b.yaml
new file mode 100644
index 0000000..c21751b
--- /dev/null
+++ b/releasenotes/notes/add-tempest-lib-remote-client-adbeb3f42a36910b.yaml
@@ -0,0 +1,10 @@
+---
+features:
+  - Add remote_client under tempest.lib.
+    This remote_client under tempest.lib is defined as stable
+    interface, and now this module provides the following
+    essential methods.
+
+      * exec_command
+      * validate_authentication
+      * ping_host
diff --git a/requirements.txt b/requirements.txt
index 124da7a..6962e3e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-pbr>=1.8 # Apache-2.0
+pbr>=2.0.0 # Apache-2.0
 cliff>=2.3.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 testtools>=1.4.0 # MIT
@@ -17,7 +17,7 @@
 fixtures>=3.0.0 # Apache-2.0/BSD
 PyYAML>=3.10.0 # MIT
 python-subunit>=0.0.18 # Apache-2.0/BSD
-stevedore>=1.17.1 # Apache-2.0
+stevedore>=1.20.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
 os-testr>=0.8.0 # Apache-2.0
 urllib3>=1.15.1 # MIT
diff --git a/setup.py b/setup.py
index 782bb21..566d844 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.8'],
+    setup_requires=['pbr>=2.0.0'],
     pbr=True)
diff --git a/tempest/api/compute/admin/test_agents.py b/tempest/api/compute/admin/test_agents.py
index 118ad60..4ae4372 100644
--- a/tempest/api/compute/admin/test_agents.py
+++ b/tempest/api/compute/admin/test_agents.py
@@ -13,7 +13,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/admin/test_aggregates.py b/tempest/api/compute/admin/test_aggregates.py
index 36ce975..2f5382e 100644
--- a/tempest/api/compute/admin/test_aggregates.py
+++ b/tempest/api/compute/admin/test_aggregates.py
@@ -17,8 +17,8 @@
 
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 
diff --git a/tempest/api/compute/admin/test_aggregates_negative.py b/tempest/api/compute/admin/test_aggregates_negative.py
index 00107cd..e682570 100644
--- a/tempest/api/compute/admin/test_aggregates_negative.py
+++ b/tempest/api/compute/admin/test_aggregates_negative.py
@@ -15,7 +15,7 @@
 
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/admin/test_flavors.py b/tempest/api/compute/admin/test_flavors.py
index c3c88a5..3821895 100644
--- a/tempest/api/compute/admin/test_flavors.py
+++ b/tempest/api/compute/admin/test_flavors.py
@@ -16,7 +16,7 @@
 import uuid
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs.py b/tempest/api/compute/admin/test_flavors_extra_specs.py
index ee1e3a0..4d7abb6 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
index dab83e5..a728711 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
@@ -15,7 +15,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/admin/test_hypervisor_negative.py b/tempest/api/compute/admin/test_hypervisor_negative.py
index 1a37312..b8a67b9 100644
--- a/tempest/api/compute/admin/test_hypervisor_negative.py
+++ b/tempest/api/compute/admin/test_hypervisor_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/admin/test_keypairs_v210.py b/tempest/api/compute/admin/test_keypairs_v210.py
index 82d3bae..b6c2c3d 100644
--- a/tempest/api/compute/admin/test_keypairs_v210.py
+++ b/tempest/api/compute/admin/test_keypairs_v210.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute.keypairs import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/admin/test_migrations.py b/tempest/api/compute/admin/test_migrations.py
index 18655cb..df8b175 100644
--- a/tempest/api/compute/admin/test_migrations.py
+++ b/tempest/api/compute/admin/test_migrations.py
@@ -15,9 +15,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions
 
diff --git a/tempest/api/compute/admin/test_quotas.py b/tempest/api/compute/admin/test_quotas.py
index 3e9dc79..c9d7722 100644
--- a/tempest/api/compute/admin/test_quotas.py
+++ b/tempest/api/compute/admin/test_quotas.py
@@ -18,7 +18,7 @@
 
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 LOG = logging.getLogger(__name__)
diff --git a/tempest/api/compute/admin/test_quotas_negative.py b/tempest/api/compute/admin/test_quotas_negative.py
index ca8382f..a1dd2e7 100644
--- a/tempest/api/compute/admin/test_quotas_negative.py
+++ b/tempest/api/compute/admin/test_quotas_negative.py
@@ -13,8 +13,8 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/admin/test_security_groups.py b/tempest/api/compute/admin/test_security_groups.py
index 2efe755..b4d0f2a 100644
--- a/tempest/api/compute/admin/test_security_groups.py
+++ b/tempest/api/compute/admin/test_security_groups.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 9e1c0e9..79777d0 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -15,8 +15,8 @@
 from tempest.api.compute import base
 from tempest.common import compute
 from tempest.common import fixed_network
-from tempest.common.utils import data_utils
 from tempest.common import waiters
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index adb49a5..ebdceef 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -16,9 +16,9 @@
 
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/admin/test_volumes_negative.py b/tempest/api/compute/admin/test_volumes_negative.py
index 905bc3d..06b0893 100644
--- a/tempest/api/compute/admin/test_volumes_negative.py
+++ b/tempest/api/compute/admin/test_volumes_negative.py
@@ -13,8 +13,8 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 55cc293..7dafc6b 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -19,11 +19,11 @@
 
 from tempest.api.compute import api_microversion_fixture
 from tempest.common import compute
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
 from tempest import exceptions
 from tempest.lib.common import api_version_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import exceptions as lib_exc
 import tempest.test
diff --git a/tempest/api/compute/flavors/test_flavors_negative.py b/tempest/api/compute/flavors/test_flavors_negative.py
index b313f44..eee6bd2 100644
--- a/tempest/api/compute/flavors/test_flavors_negative.py
+++ b/tempest/api/compute/flavors/test_flavors_negative.py
@@ -19,8 +19,8 @@
 
 from tempest.api.compute import base
 from tempest.common import image as common_image
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py b/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
index 5e47d18..b3c3e17 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.compute.floating_ips import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py b/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
index 00a4075..388db0b 100644
--- a/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
+++ b/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/images/test_image_metadata.py b/tempest/api/compute/images/test_image_metadata.py
index f131007..dcc44d8 100644
--- a/tempest/api/compute/images/test_image_metadata.py
+++ b/tempest/api/compute/images/test_image_metadata.py
@@ -17,9 +17,9 @@
 
 from tempest.api.compute import base
 from tempest.common import image as common_image
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions
 
diff --git a/tempest/api/compute/images/test_image_metadata_negative.py b/tempest/api/compute/images/test_image_metadata_negative.py
index 0f5b9d8..9cb4b57 100644
--- a/tempest/api/compute/images/test_image_metadata_negative.py
+++ b/tempest/api/compute/images/test_image_metadata_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/images/test_images.py b/tempest/api/compute/images/test_images.py
index a0c860a..3ce42be 100644
--- a/tempest/api/compute/images/test_images.py
+++ b/tempest/api/compute/images/test_images.py
@@ -13,9 +13,9 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 CONF = config.CONF
diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index 10f3c70..945b191 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -13,9 +13,9 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/images/test_images_oneserver.py b/tempest/api/compute/images/test_images_oneserver.py
index 7fff555..bc88564 100644
--- a/tempest/api/compute/images/test_images_oneserver.py
+++ b/tempest/api/compute/images/test_images_oneserver.py
@@ -14,9 +14,9 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 
diff --git a/tempest/api/compute/images/test_images_oneserver_negative.py b/tempest/api/compute/images/test_images_oneserver_negative.py
index 09bbfbe..51826c1 100644
--- a/tempest/api/compute/images/test_images_oneserver_negative.py
+++ b/tempest/api/compute/images/test_images_oneserver_negative.py
@@ -17,9 +17,9 @@
 from oslo_log import log as logging
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/images/test_list_image_filters.py b/tempest/api/compute/images/test_list_image_filters.py
index 9c9b8a1..7168a8c 100644
--- a/tempest/api/compute/images/test_list_image_filters.py
+++ b/tempest/api/compute/images/test_list_image_filters.py
@@ -20,9 +20,9 @@
 
 from tempest.api.compute import base
 from tempest.common import image as common_image
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions
 
diff --git a/tempest/api/compute/images/test_list_image_filters_negative.py b/tempest/api/compute/images/test_list_image_filters_negative.py
index e04a57a..403961f 100644
--- a/tempest/api/compute/images/test_list_image_filters_negative.py
+++ b/tempest/api/compute/images/test_list_image_filters_negative.py
@@ -13,8 +13,8 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/keypairs/base.py b/tempest/api/compute/keypairs/base.py
index 21f504b..0051810 100644
--- a/tempest/api/compute/keypairs/base.py
+++ b/tempest/api/compute/keypairs/base.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 
 
 class BaseKeypairTest(base.BaseV2ComputeTest):
diff --git a/tempest/api/compute/keypairs/test_keypairs.py b/tempest/api/compute/keypairs/test_keypairs.py
index 11e84e8..0b7a967 100644
--- a/tempest/api/compute/keypairs/test_keypairs.py
+++ b/tempest/api/compute/keypairs/test_keypairs.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute.keypairs import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/keypairs/test_keypairs_negative.py b/tempest/api/compute/keypairs/test_keypairs_negative.py
index 863ce0d..8b5a35b 100644
--- a/tempest/api/compute/keypairs/test_keypairs_negative.py
+++ b/tempest/api/compute/keypairs/test_keypairs_negative.py
@@ -15,7 +15,7 @@
 #    under the License.
 
 from tempest.api.compute.keypairs import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/keypairs/test_keypairs_v22.py b/tempest/api/compute/keypairs/test_keypairs_v22.py
index c893a4f..f39bb12 100644
--- a/tempest/api/compute/keypairs/test_keypairs_v22.py
+++ b/tempest/api/compute/keypairs/test_keypairs_v22.py
@@ -13,7 +13,7 @@
 #    under the License.
 
 from tempest.api.compute.keypairs import test_keypairs
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/security_groups/base.py b/tempest/api/compute/security_groups/base.py
index cb18775..6148e16 100644
--- a/tempest/api/compute/security_groups/base.py
+++ b/tempest/api/compute/security_groups/base.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/compute/security_groups/test_security_group_rules_negative.py b/tempest/api/compute/security_groups/test_security_group_rules_negative.py
index 0312736..6b8dfdf 100644
--- a/tempest/api/compute/security_groups/test_security_group_rules_negative.py
+++ b/tempest/api/compute/security_groups/test_security_group_rules_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute.security_groups import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/security_groups/test_security_groups.py b/tempest/api/compute/security_groups/test_security_groups.py
index e90a1fc..ed0e722 100644
--- a/tempest/api/compute/security_groups/test_security_groups.py
+++ b/tempest/api/compute/security_groups/test_security_groups.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.compute.security_groups import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/security_groups/test_security_groups_negative.py b/tempest/api/compute/security_groups/test_security_groups_negative.py
index 48bb1b6..3593237 100644
--- a/tempest/api/compute/security_groups/test_security_groups_negative.py
+++ b/tempest/api/compute/security_groups/test_security_groups_negative.py
@@ -16,8 +16,8 @@
 import testtools
 
 from tempest.api.compute.security_groups import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index 38dbb50..eb23e4b 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -17,9 +17,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/compute/servers/test_device_tagging.py b/tempest/api/compute/servers/test_device_tagging.py
index 5bcbdac..57aa72e 100644
--- a/tempest/api/compute/servers/test_device_tagging.py
+++ b/tempest/api/compute/servers/test_device_tagging.py
@@ -17,9 +17,9 @@
 from oslo_log import log as logging
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions
diff --git a/tempest/api/compute/servers/test_instance_actions_negative.py b/tempest/api/compute/servers/test_instance_actions_negative.py
index 85e3281..512bd1e 100644
--- a/tempest/api/compute/servers/test_instance_actions_negative.py
+++ b/tempest/api/compute/servers/test_instance_actions_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index 7b782de..12eb5e1 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -16,9 +16,9 @@
 
 from tempest.api.compute import base
 from tempest.common import fixed_network
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index b915739..d810ff7 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -19,10 +19,10 @@
 
 from tempest.api.compute import base
 from tempest.common import compute
-from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/servers/test_server_group.py b/tempest/api/compute/servers/test_server_group.py
index 6679b58..69d7897 100644
--- a/tempest/api/compute/servers/test_server_group.py
+++ b/tempest/api/compute/servers/test_server_group.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/compute/servers/test_server_metadata_negative.py b/tempest/api/compute/servers/test_server_metadata_negative.py
index 92ffa86..22ce37d 100644
--- a/tempest/api/compute/servers/test_server_metadata_negative.py
+++ b/tempest/api/compute/servers/test_server_metadata_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/servers/test_server_rescue.py b/tempest/api/compute/servers/test_server_rescue.py
index 75ba15c..8760af6 100644
--- a/tempest/api/compute/servers/test_server_rescue.py
+++ b/tempest/api/compute/servers/test_server_rescue.py
@@ -16,9 +16,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 CONF = config.CONF
diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index c3a8c36..565d76d 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -16,9 +16,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/servers/test_server_tags.py b/tempest/api/compute/servers/test_server_tags.py
index 20e2cee..0370215 100644
--- a/tempest/api/compute/servers/test_server_tags.py
+++ b/tempest/api/compute/servers/test_server_tags.py
@@ -16,7 +16,7 @@
 import six
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/compute/servers/test_servers.py b/tempest/api/compute/servers/test_servers.py
index b463726..11f236b 100644
--- a/tempest/api/compute/servers/test_servers.py
+++ b/tempest/api/compute/servers/test_servers.py
@@ -16,9 +16,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 CONF = config.CONF
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index 1418b3f..c6b3b40 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -19,9 +19,9 @@
 
 from tempest.api.compute import base
 from tempest.common import compute
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/test_live_block_migration_negative.py b/tempest/api/compute/test_live_block_migration_negative.py
index 01fd9ef..0f5ea57 100644
--- a/tempest/api/compute/test_live_block_migration_negative.py
+++ b/tempest/api/compute/test_live_block_migration_negative.py
@@ -14,9 +14,9 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/compute/volumes/test_volume_snapshots.py b/tempest/api/compute/volumes/test_volume_snapshots.py
index 4b06867..2f3a06e 100644
--- a/tempest/api/compute/volumes/test_volume_snapshots.py
+++ b/tempest/api/compute/volumes/test_volume_snapshots.py
@@ -16,9 +16,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/volumes/test_volumes_get.py b/tempest/api/compute/volumes/test_volumes_get.py
index 0eaa359..43c837a 100644
--- a/tempest/api/compute/volumes/test_volumes_get.py
+++ b/tempest/api/compute/volumes/test_volumes_get.py
@@ -16,9 +16,9 @@
 from testtools import matchers
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/compute/volumes/test_volumes_negative.py b/tempest/api/compute/volumes/test_volumes_negative.py
index 2ad8631..7676ee8 100644
--- a/tempest/api/compute/volumes/test_volumes_negative.py
+++ b/tempest/api/compute/volumes/test_volumes_negative.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v2/test_endpoints.py b/tempest/api/identity/admin/v2/test_endpoints.py
index 0ea2eb3..db32f5a 100644
--- a/tempest/api/identity/admin/v2/test_endpoints.py
+++ b/tempest/api/identity/admin/v2/test_endpoints.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/identity/admin/v2/test_roles.py b/tempest/api/identity/admin/v2/test_roles.py
index 799b653..479663c 100644
--- a/tempest/api/identity/admin/v2/test_roles.py
+++ b/tempest/api/identity/admin/v2/test_roles.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 
diff --git a/tempest/api/identity/admin/v2/test_roles_negative.py b/tempest/api/identity/admin/v2/test_roles_negative.py
index b017b44..f80721c 100644
--- a/tempest/api/identity/admin/v2/test_roles_negative.py
+++ b/tempest/api/identity/admin/v2/test_roles_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v2/test_services.py b/tempest/api/identity/admin/v2/test_services.py
index 3b0ddbb..f6d4a24 100644
--- a/tempest/api/identity/admin/v2/test_services.py
+++ b/tempest/api/identity/admin/v2/test_services.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v2/test_tenant_negative.py b/tempest/api/identity/admin/v2/test_tenant_negative.py
index e8c32b9..69f0920 100644
--- a/tempest/api/identity/admin/v2/test_tenant_negative.py
+++ b/tempest/api/identity/admin/v2/test_tenant_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v2/test_tenants.py b/tempest/api/identity/admin/v2/test_tenants.py
index eb51b5a..6b7413c 100644
--- a/tempest/api/identity/admin/v2/test_tenants.py
+++ b/tempest/api/identity/admin/v2/test_tenants.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 
diff --git a/tempest/api/identity/admin/v2/test_tokens.py b/tempest/api/identity/admin/v2/test_tokens.py
index 7b5e01e..3428c07 100644
--- a/tempest/api/identity/admin/v2/test_tokens.py
+++ b/tempest/api/identity/admin/v2/test_tokens.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/identity/admin/v2/test_users.py b/tempest/api/identity/admin/v2/test_users.py
index 5889813..df4ded8 100644
--- a/tempest/api/identity/admin/v2/test_users.py
+++ b/tempest/api/identity/admin/v2/test_users.py
@@ -18,7 +18,7 @@
 from testtools import matchers
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 from tempest import test
diff --git a/tempest/api/identity/admin/v2/test_users_negative.py b/tempest/api/identity/admin/v2/test_users_negative.py
index 49fda4e..442c1a7 100644
--- a/tempest/api/identity/admin/v2/test_users_negative.py
+++ b/tempest/api/identity/admin/v2/test_users_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_credentials.py b/tempest/api/identity/admin/v3/test_credentials.py
index e5a218d..c752532 100644
--- a/tempest/api/identity/admin/v3/test_credentials.py
+++ b/tempest/api/identity/admin/v3/test_credentials.py
@@ -15,7 +15,7 @@
 from oslo_serialization import jsonutils as json
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/identity/admin/v3/test_default_project_id.py b/tempest/api/identity/admin/v3/test_default_project_id.py
index 110695d..c2ab488 100644
--- a/tempest/api/identity/admin/v3/test_default_project_id.py
+++ b/tempest/api/identity/admin/v3/test_default_project_id.py
@@ -11,9 +11,9 @@
 #    under the License.
 from tempest.api.identity import base
 from tempest import clients
-from tempest.common.utils import data_utils
 from tempest import config
 from tempest.lib import auth
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 CONF = config.CONF
diff --git a/tempest/api/identity/admin/v3/test_domains.py b/tempest/api/identity/admin/v3/test_domains.py
index 4cf9f66..d04e774 100644
--- a/tempest/api/identity/admin/v3/test_domains.py
+++ b/tempest/api/identity/admin/v3/test_domains.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_domains_negative.py b/tempest/api/identity/admin/v3/test_domains_negative.py
index 4555a6a..280a5a8 100644
--- a/tempest/api/identity/admin/v3/test_domains_negative.py
+++ b/tempest/api/identity/admin/v3/test_domains_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_endpoints.py b/tempest/api/identity/admin/v3/test_endpoints.py
index 9a0b3e4..0786d82 100644
--- a/tempest/api/identity/admin/v3/test_endpoints.py
+++ b/tempest/api/identity/admin/v3/test_endpoints.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/identity/admin/v3/test_endpoints_negative.py b/tempest/api/identity/admin/v3/test_endpoints_negative.py
index 8e00193..d46e1f0 100644
--- a/tempest/api/identity/admin/v3/test_endpoints_negative.py
+++ b/tempest/api/identity/admin/v3/test_endpoints_negative.py
@@ -15,7 +15,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_groups.py b/tempest/api/identity/admin/v3/test_groups.py
index 5ce0709..a423a12 100644
--- a/tempest/api/identity/admin/v3/test_groups.py
+++ b/tempest/api/identity/admin/v3/test_groups.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/identity/admin/v3/test_inherits.py b/tempest/api/identity/admin/v3/test_inherits.py
index 8523396..3fe591b 100644
--- a/tempest/api/identity/admin/v3/test_inherits.py
+++ b/tempest/api/identity/admin/v3/test_inherits.py
@@ -11,7 +11,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/identity/admin/v3/test_list_projects.py b/tempest/api/identity/admin/v3/test_list_projects.py
index 2d046bb..7e70c14 100644
--- a/tempest/api/identity/admin/v3/test_list_projects.py
+++ b/tempest/api/identity/admin/v3/test_list_projects.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/identity/admin/v3/test_list_users.py b/tempest/api/identity/admin/v3/test_list_users.py
index 0a0d65a..bcbf6b6 100644
--- a/tempest/api/identity/admin/v3/test_list_users.py
+++ b/tempest/api/identity/admin/v3/test_list_users.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/identity/admin/v3/test_policies.py b/tempest/api/identity/admin/v3/test_policies.py
index eb1c69e..f74cb1c 100644
--- a/tempest/api/identity/admin/v3/test_policies.py
+++ b/tempest/api/identity/admin/v3/test_policies.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
diff --git a/tempest/api/identity/admin/v3/test_projects.py b/tempest/api/identity/admin/v3/test_projects.py
index b37d33d..77a5c69 100644
--- a/tempest/api/identity/admin/v3/test_projects.py
+++ b/tempest/api/identity/admin/v3/test_projects.py
@@ -16,8 +16,8 @@
 import testtools
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 CONF = config.CONF
diff --git a/tempest/api/identity/admin/v3/test_projects_negative.py b/tempest/api/identity/admin/v3/test_projects_negative.py
index 87f8684..31e7302 100644
--- a/tempest/api/identity/admin/v3/test_projects_negative.py
+++ b/tempest/api/identity/admin/v3/test_projects_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_regions.py b/tempest/api/identity/admin/v3/test_regions.py
index f57a07c..56ee496 100644
--- a/tempest/api/identity/admin/v3/test_regions.py
+++ b/tempest/api/identity/admin/v3/test_regions.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_roles.py b/tempest/api/identity/admin/v3/test_roles.py
index 9bee24a..e07d525 100644
--- a/tempest/api/identity/admin/v3/test_roles.py
+++ b/tempest/api/identity/admin/v3/test_roles.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
diff --git a/tempest/api/identity/admin/v3/test_services.py b/tempest/api/identity/admin/v3/test_services.py
index 35e1814..53e005d 100644
--- a/tempest/api/identity/admin/v3/test_services.py
+++ b/tempest/api/identity/admin/v3/test_services.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_tokens.py b/tempest/api/identity/admin/v3/test_tokens.py
index a9508d1..ed4d31a 100644
--- a/tempest/api/identity/admin/v3/test_tokens.py
+++ b/tempest/api/identity/admin/v3/test_tokens.py
@@ -16,7 +16,7 @@
 import six
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 
diff --git a/tempest/api/identity/admin/v3/test_trusts.py b/tempest/api/identity/admin/v3/test_trusts.py
index 1a466a0..7a569b7 100644
--- a/tempest/api/identity/admin/v3/test_trusts.py
+++ b/tempest/api/identity/admin/v3/test_trusts.py
@@ -18,8 +18,8 @@
 from tempest.api.identity import base
 from tempest import clients
 from tempest.common import credentials_factory as common_creds
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/admin/v3/test_users.py b/tempest/api/identity/admin/v3/test_users.py
index e0ec883..0d12ba9 100644
--- a/tempest/api/identity/admin/v3/test_users.py
+++ b/tempest/api/identity/admin/v3/test_users.py
@@ -18,8 +18,8 @@
 import testtools
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 
diff --git a/tempest/api/identity/admin/v3/test_users_negative.py b/tempest/api/identity/admin/v3/test_users_negative.py
index 9626108..93241c5 100644
--- a/tempest/api/identity/admin/v3/test_users_negative.py
+++ b/tempest/api/identity/admin/v3/test_users_negative.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 344779c..9339d3c 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -13,8 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.common.utils import data_utils
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 import tempest.test
 
@@ -178,6 +178,7 @@
         cls.non_admin_users_client = cls.os.users_v3_client
         cls.non_admin_token = cls.os.token_v3_client
         cls.non_admin_projects_client = cls.os.projects_client
+        cls.non_admin_versions_client = cls.os.identity_versions_v3_client
 
 
 class BaseIdentityV3AdminTest(BaseIdentityV3Test):
diff --git a/tempest/api/identity/v3/test_api_discovery.py b/tempest/api/identity/v3/test_api_discovery.py
index 2eed3c8..177a49d 100644
--- a/tempest/api/identity/v3/test_api_discovery.py
+++ b/tempest/api/identity/v3/test_api_discovery.py
@@ -21,6 +21,20 @@
 class TestApiDiscovery(base.BaseIdentityV3Test):
     """Tests for API discovery features."""
 
+    @decorators.idempotent_id('721f480f-35b6-46c7-846e-047e6acea0dc')
+    @test.attr(type='smoke')
+    def test_list_api_versions(self):
+        # NOTE: Actually this API doesn't depend on v3 API at all, because
+        # the API operation is "GET /" without v3's endpoint. The reason of
+        # this test path is just v3 API is CURRENT on Keystone side.
+        versions = self.non_admin_versions_client.list_versions()
+        expected_resources = ('id', 'links', 'media-types', 'status',
+                              'updated')
+
+        for version in versions['versions']["values"]:
+            for res in expected_resources:
+                self.assertIn(res, version)
+
     @test.attr(type='smoke')
     @decorators.idempotent_id('b9232f5e-d9e5-4d97-b96c-28d3db4de1bd')
     def test_api_version_resources(self):
diff --git a/tempest/clients.py b/tempest/clients.py
index cdd6925..9cb918a 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -225,6 +225,8 @@
         self.credentials_client = self.identity_v3.CredentialsClient(
             **params_v3)
         self.groups_client = self.identity_v3.GroupsClient(**params_v3)
+        self.identity_versions_v3_client = self.identity_v3.VersionsClient(
+            **params_v3)
 
         # Token clients do not use the catalog. They only need default_params.
         # They read auth_url, so they should only be set if the corresponding
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index 99da983..9a483bb 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -17,10 +17,10 @@
 from oslo_utils import excutils
 
 from tempest.common import fixed_network
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
 from tempest.lib.common import rest_client
+from tempest.lib.common.utils import data_utils
 
 CONF = config.CONF
 
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index e9ea92a..6dfc579 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -11,17 +11,12 @@
 #    under the License.
 
 import re
-import sys
 import time
 
-import netaddr
-import six
-
 from oslo_log import log as logging
 
 from tempest import config
-from tempest.lib.common import ssh
-from tempest.lib.common.utils import test_utils
+from tempest.lib.common.utils.linux import remote_client
 import tempest.lib.exceptions
 
 CONF = config.CONF
@@ -29,39 +24,11 @@
 LOG = logging.getLogger(__name__)
 
 
-def debug_ssh(function):
-    """Decorator to generate extra debug info in case off SSH failure"""
-    def wrapper(self, *args, **kwargs):
-        try:
-            return function(self, *args, **kwargs)
-        except tempest.lib.exceptions.SSHTimeout:
-            try:
-                original_exception = sys.exc_info()
-                caller = test_utils.find_test_caller() or "not found"
-                if self.server:
-                    msg = 'Caller: %s. Timeout trying to ssh to server %s'
-                    LOG.debug(msg, caller, self.server)
-                    if self.log_console and self.servers_client:
-                        try:
-                            msg = 'Console log for server %s: %s'
-                            console_log = (
-                                self.servers_client.get_console_output(
-                                    self.server['id'])['output'])
-                            LOG.debug(msg, self.server['id'], console_log)
-                        except Exception:
-                            msg = 'Could not get console_log for server %s'
-                            LOG.debug(msg, self.server['id'])
-                # re-raise the original ssh timeout exception
-                six.reraise(*original_exception)
-            finally:
-                # Delete the traceback to avoid circular references
-                _, _, trace = original_exception
-                del trace
-    return wrapper
+class RemoteClient(remote_client.RemoteClient):
 
-
-class RemoteClient(object):
-
+    # TODO(oomichi): Make this class deprecated after migrating
+    #                necessary methods to tempest.lib and cleaning
+    #                unnecessary methods up from this class.
     def __init__(self, ip_address, username, password=None, pkey=None,
                  server=None, servers_client=None):
         """Executes commands in a VM over ssh
@@ -73,35 +40,15 @@
         :param server: server dict, used for debugging purposes
         :param servers_client: servers client, used for debugging purposes
         """
-        self.server = server
-        self.servers_client = servers_client
-
-        ssh_timeout = CONF.validation.ssh_timeout
-        connect_timeout = CONF.validation.connect_timeout
-        self.log_console = CONF.compute_feature_enabled.console_output
-        self.ssh_shell_prologue = CONF.validation.ssh_shell_prologue
-        self.ping_count = CONF.validation.ping_count
-        self.ping_size = CONF.validation.ping_size
-
-        self.ssh_client = ssh.Client(ip_address, username, password,
-                                     ssh_timeout, pkey=pkey,
-                                     channel_timeout=connect_timeout)
-
-    @debug_ssh
-    def exec_command(self, cmd):
-        # Shell options below add more clearness on failures,
-        # path is extended for some non-cirros guest oses (centos7)
-        cmd = self.ssh_shell_prologue + " " + cmd
-        LOG.debug("Remote command: %s", cmd)
-        return self.ssh_client.exec_command(cmd)
-
-    @debug_ssh
-    def validate_authentication(self):
-        """Validate ssh connection and authentication
-
-           This method raises an Exception when the validation fails.
-        """
-        self.ssh_client.test_connection_auth()
+        super(RemoteClient, self).__init__(
+            ip_address, username, password=password, pkey=pkey,
+            server=server, servers_client=servers_client,
+            ssh_timeout=CONF.validation.ssh_timeout,
+            connect_timeout=CONF.validation.connect_timeout,
+            console_output_enabled=CONF.compute_feature_enabled.console_output,
+            ssh_shell_prologue=CONF.validation.ssh_shell_prologue,
+            ping_count=CONF.validation.ping_count,
+            ping_size=CONF.validation.ping_size)
 
     def get_disks(self):
         # Select root disk devices as shown by lsblk
@@ -132,19 +79,6 @@
         cmd = 'sudo sh -c "echo \\"%s\\" >/dev/console"' % message
         return self.exec_command(cmd)
 
-    def ping_host(self, host, count=None, size=None, nic=None):
-        if count is None:
-            count = self.ping_count
-        if size is None:
-            size = self.ping_size
-
-        addr = netaddr.IPAddress(host)
-        cmd = 'ping6' if addr.version == 6 else 'ping'
-        if nic:
-            cmd = 'sudo {cmd} -I {nic}'.format(cmd=cmd, nic=nic)
-        cmd += ' -c{0} -w{0} -s{1} {2}'.format(count, size, host)
-        return self.exec_command(cmd)
-
     def set_mac_address(self, nic, address):
         self.set_nic_state(nic=nic, state="down")
         cmd = "sudo ip link set dev {0} address {1}".format(nic, address)
@@ -175,11 +109,6 @@
         cmd = "sudo ip link set {nic} {state}".format(nic=nic, state=state)
         return self.exec_command(cmd)
 
-    def get_pids(self, pr_name):
-        # Get pid(s) of a process/program
-        cmd = "ps -ef | grep %s | grep -v 'grep' | awk {'print $1'}" % pr_name
-        return self.exec_command(cmd).split('\n')
-
     def get_dns_servers(self):
         cmd = 'cat /etc/resolv.conf'
         resolve_file = self.exec_command(cmd).strip().split('\n')
@@ -188,10 +117,6 @@
                        if len(l) and l[0] == 'nameserver']
         return dns_servers
 
-    def send_signal(self, pid, signum):
-        cmd = 'sudo /bin/kill -{sig} {pid}'.format(pid=pid, sig=signum)
-        return self.exec_command(cmd)
-
     def _renew_lease_udhcpc(self, fixed_ip=None):
         """Renews DHCP lease via udhcpc client. """
         file_path = '/var/run/udhcpc.'
@@ -199,7 +124,8 @@
         pid = self.exec_command('cat {path}{nic}.pid'.
                                 format(path=file_path, nic=nic_name))
         pid = pid.strip()
-        self.send_signal(pid, 'USR1')
+        cmd = 'sudo /bin/kill -{sig} {pid}'.format(pid=pid, sig='USR1')
+        self.exec_command(cmd)
 
     def _renew_lease_dhclient(self, fixed_ip=None):
         """Renews DHCP lease via dhclient client. """
diff --git a/tempest/lib/common/rest_client.py b/tempest/lib/common/rest_client.py
index f5bff20..3246d6a 100644
--- a/tempest/lib/common/rest_client.py
+++ b/tempest/lib/common/rest_client.py
@@ -23,6 +23,7 @@
 from oslo_log import log as logging
 from oslo_serialization import jsonutils as json
 import six
+from six.moves import urllib
 
 from tempest.lib.common import http
 from tempest.lib.common import jsonschema_validator
@@ -915,6 +916,16 @@
                     msg = ("HTTP response header is invalid (%s)" % ex)
                     raise exceptions.InvalidHTTPResponseHeader(msg)
 
+    def _get_base_version_url(self):
+        # TODO(oomichi): This method can be used for auth's replace_version().
+        # So it is nice to have common logic for the maintenance.
+        endpoint = self.base_url
+        url = urllib.parse.urlsplit(endpoint)
+        new_path = re.split(r'(^|/)+v\d+(\.\d+)?', url.path)[0]
+        url = list(url)
+        url[2] = new_path + '/'
+        return urllib.parse.urlunsplit(url)
+
 
 class ResponseBody(dict):
     """Class that wraps an http response and dict body into a single value.
diff --git a/tempest/lib/common/utils/linux/__init__.py b/tempest/lib/common/utils/linux/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/lib/common/utils/linux/__init__.py
diff --git a/tempest/lib/common/utils/linux/remote_client.py b/tempest/lib/common/utils/linux/remote_client.py
new file mode 100644
index 0000000..64d6be2
--- /dev/null
+++ b/tempest/lib/common/utils/linux/remote_client.py
@@ -0,0 +1,117 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import sys
+
+import netaddr
+from oslo_log import log as logging
+import six
+
+from tempest.lib.common import ssh
+from tempest.lib.common.utils import test_utils
+import tempest.lib.exceptions
+
+LOG = logging.getLogger(__name__)
+
+
+def debug_ssh(function):
+    """Decorator to generate extra debug info in case off SSH failure"""
+    def wrapper(self, *args, **kwargs):
+        try:
+            return function(self, *args, **kwargs)
+        except tempest.lib.exceptions.SSHTimeout:
+            try:
+                original_exception = sys.exc_info()
+                caller = test_utils.find_test_caller() or "not found"
+                if self.server:
+                    msg = 'Caller: %s. Timeout trying to ssh to server %s'
+                    LOG.debug(msg, caller, self.server)
+                    if self.console_output_enabled and self.servers_client:
+                        try:
+                            msg = 'Console log for server %s: %s'
+                            console_log = (
+                                self.servers_client.get_console_output(
+                                    self.server['id'])['output'])
+                            LOG.debug(msg, self.server['id'], console_log)
+                        except Exception:
+                            msg = 'Could not get console_log for server %s'
+                            LOG.debug(msg, self.server['id'])
+                # re-raise the original ssh timeout exception
+                six.reraise(*original_exception)
+            finally:
+                # Delete the traceback to avoid circular references
+                _, _, trace = original_exception
+                del trace
+    return wrapper
+
+
+class RemoteClient(object):
+
+    def __init__(self, ip_address, username, password=None, pkey=None,
+                 server=None, servers_client=None, ssh_timeout=300,
+                 connect_timeout=60, console_output_enabled=True,
+                 ssh_shell_prologue="set -eu -o pipefail; PATH=$$PATH:/sbin;",
+                 ping_count=1, ping_size=56):
+        """Executes commands in a VM over ssh
+
+        :param ip_address: IP address to ssh to
+        :param username: Ssh username
+        :param password: Ssh password
+        :param pkey: Ssh public key
+        :param server: Server dict, used for debugging purposes
+        :param servers_client: Servers client, used for debugging purposes
+        :param ssh_timeout: Timeout in seconds to wait for the ssh banner
+        :param connect_timeout: Timeout in seconds to wait for TCP connection
+        :param console_output_enabled: Support serial console output?
+        :param ssh_shell_prologue: Shell fragments to use before command
+        :param ping_count: Number of ping packets
+        :param ping_size: Packet size for ping packets
+        """
+        self.server = server
+        self.servers_client = servers_client
+        self.console_output_enabled = console_output_enabled
+        self.ssh_shell_prologue = ssh_shell_prologue
+        self.ping_count = ping_count
+        self.ping_size = ping_size
+
+        self.ssh_client = ssh.Client(ip_address, username, password,
+                                     ssh_timeout, pkey=pkey,
+                                     channel_timeout=connect_timeout)
+
+    @debug_ssh
+    def exec_command(self, cmd):
+        # Shell options below add more clearness on failures,
+        # path is extended for some non-cirros guest oses (centos7)
+        cmd = self.ssh_shell_prologue + " " + cmd
+        LOG.debug("Remote command: %s", cmd)
+        return self.ssh_client.exec_command(cmd)
+
+    @debug_ssh
+    def validate_authentication(self):
+        """Validate ssh connection and authentication
+
+           This method raises an Exception when the validation fails.
+        """
+        self.ssh_client.test_connection_auth()
+
+    def ping_host(self, host, count=None, size=None, nic=None):
+        if count is None:
+            count = self.ping_count
+        if size is None:
+            size = self.ping_size
+
+        addr = netaddr.IPAddress(host)
+        cmd = 'ping6' if addr.version == 6 else 'ping'
+        if nic:
+            cmd = 'sudo {cmd} -I {nic}'.format(cmd=cmd, nic=nic)
+        cmd += ' -c{0} -w{0} -s{1} {2}'.format(count, size, host)
+        return self.exec_command(cmd)
diff --git a/tempest/lib/services/clients.py b/tempest/lib/services/clients.py
index 445e8bd..eefac66 100644
--- a/tempest/lib/services/clients.py
+++ b/tempest/lib/services/clients.py
@@ -125,6 +125,9 @@
                 name=plugin_name,
                 detailed_error=detailed_error % plugin_name)
         self._service_clients[plugin_name] = service_client_data
+        LOG.debug("Successfully registered plugin %s in the service client "
+                  "registry with configuration: %s", plugin_name,
+                  service_client_data)
 
     def get_service_clients(self):
         return self._service_clients
diff --git a/tempest/lib/services/compute/versions_client.py b/tempest/lib/services/compute/versions_client.py
index b2052c3..75984ec 100644
--- a/tempest/lib/services/compute/versions_client.py
+++ b/tempest/lib/services/compute/versions_client.py
@@ -12,10 +12,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import re
-
 from oslo_serialization import jsonutils as json
-from six.moves import urllib
 
 from tempest.lib.api_schema.response.compute.v2_1 import versions as schema
 from tempest.lib.common import rest_client
@@ -24,19 +21,6 @@
 
 class VersionsClient(base_compute_client.BaseComputeClient):
 
-    def _get_base_version_url(self):
-        # NOTE: The URL which is got from keystone's catalog contains
-        # API version and project-id like "/app-name/v2/{project-id}" or
-        # "/v2/{project-id}", but we need to access the URL which doesn't
-        # contain API version for getting API versions. For that, here
-        # should use raw_request() instead of get().
-        endpoint = self.base_url
-        url = urllib.parse.urlsplit(endpoint)
-        new_path = re.split(r'(^|/)+v\d+(\.\d+)?', url.path)[0]
-        url = list(url)
-        url[2] = new_path + '/'
-        return urllib.parse.urlunsplit(url)
-
     def list_versions(self):
         version_url = self._get_base_version_url()
         resp, body = self.raw_request(version_url, 'GET')
diff --git a/tempest/lib/services/identity/v3/__init__.py b/tempest/lib/services/identity/v3/__init__.py
index 8058d51..88801e7 100644
--- a/tempest/lib/services/identity/v3/__init__.py
+++ b/tempest/lib/services/identity/v3/__init__.py
@@ -30,9 +30,10 @@
 from tempest.lib.services.identity.v3.token_client import V3TokenClient
 from tempest.lib.services.identity.v3.trusts_client import TrustsClient
 from tempest.lib.services.identity.v3.users_client import UsersClient
+from tempest.lib.services.identity.v3.versions_client import VersionsClient
 
 __all__ = ['CredentialsClient', 'DomainsClient', 'EndPointsClient',
            'GroupsClient', 'IdentityClient', 'InheritedRolesClient',
            'PoliciesClient', 'ProjectsClient', 'RegionsClient',
            'RoleAssignmentsClient', 'RolesClient', 'ServicesClient',
-           'V3TokenClient', 'TrustsClient', 'UsersClient', ]
+           'V3TokenClient', 'TrustsClient', 'UsersClient', 'VersionsClient']
diff --git a/tempest/lib/services/identity/v3/versions_client.py b/tempest/lib/services/identity/v3/versions_client.py
new file mode 100644
index 0000000..441ee0d
--- /dev/null
+++ b/tempest/lib/services/identity/v3/versions_client.py
@@ -0,0 +1,38 @@
+# Copyright 2017 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import time
+
+from oslo_serialization import jsonutils as json
+
+from tempest.lib.common import rest_client
+
+
+class VersionsClient(rest_client.RestClient):
+    api_version = "v3"
+
+    def list_versions(self):
+        """List API versions"""
+        version_url = self._get_base_version_url()
+
+        start = time.time()
+        resp, body = self.raw_request(version_url, 'GET')
+        end = time.time()
+        self._log_request('GET', version_url, resp, secs=(end - start),
+                          resp_body=body)
+        self._error_checker(resp, body)
+
+        self.expected_success(300, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index e5f5f68..727afd6 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -23,12 +23,12 @@
 
 from tempest.common import compute
 from tempest.common import image as common_image
-from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
 from tempest.common.utils import net_utils
 from tempest.common import waiters
 from tempest import config
 from tempest import exceptions
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import exceptions as lib_exc
 import tempest.test
@@ -635,13 +635,14 @@
                                             private_key=private_key)
         if dev_name is not None:
             ssh_client.make_fs(dev_name)
-            ssh_client.mount(dev_name, mount_path)
+            ssh_client.exec_command('sudo mount /dev/%s %s' % (dev_name,
+                                                               mount_path))
         cmd_timestamp = 'sudo sh -c "date > %s/timestamp; sync"' % mount_path
         ssh_client.exec_command(cmd_timestamp)
         timestamp = ssh_client.exec_command('sudo cat %s/timestamp'
                                             % mount_path)
         if dev_name is not None:
-            ssh_client.umount(mount_path)
+            ssh_client.exec_command('sudo umount %s' % mount_path)
         return timestamp
 
     def get_timestamp(self, ip_address, dev_name=None, mount_path='/mnt',
@@ -653,7 +654,7 @@
         timestamp = ssh_client.exec_command('sudo cat %s/timestamp'
                                             % mount_path)
         if dev_name is not None:
-            ssh_client.umount(mount_path)
+            ssh_client.exec_command('sudo umount %s' % mount_path)
         return timestamp
 
     def get_server_ip(self, server):
diff --git a/tempest/scenario/test_aggregates_basic_ops.py b/tempest/scenario/test_aggregates_basic_ops.py
index b0b516a..cefa119 100644
--- a/tempest/scenario/test_aggregates_basic_ops.py
+++ b/tempest/scenario/test_aggregates_basic_ops.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.common import tempest_fixtures as fixtures
-from tempest.common.utils import data_utils
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.scenario import manager
 from tempest import test
diff --git a/tempest/scenario/test_security_groups_basic_ops.py b/tempest/scenario/test_security_groups_basic_ops.py
index fa12f33..72b61c8 100644
--- a/tempest/scenario/test_security_groups_basic_ops.py
+++ b/tempest/scenario/test_security_groups_basic_ops.py
@@ -15,9 +15,9 @@
 from oslo_log import log
 import testtools
 
-from tempest.common.utils import data_utils
 from tempest.common.utils import net_info
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.scenario import manager
 from tempest import test
diff --git a/tempest/scenario/test_stamp_pattern.py b/tempest/scenario/test_stamp_pattern.py
index aabb767..96b423d 100644
--- a/tempest/scenario/test_stamp_pattern.py
+++ b/tempest/scenario/test_stamp_pattern.py
@@ -16,9 +16,9 @@
 from oslo_log import log as logging
 import testtools
 
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index 8cab19c..ae0230e 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -13,9 +13,9 @@
 from oslo_log import log as logging
 import testtools
 
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.scenario import manager
 from tempest import test
diff --git a/tempest/tests/common/utils/linux/test_remote_client.py b/tempest/tests/common/utils/linux/test_remote_client.py
index 7199206..48cb86b 100644
--- a/tempest/tests/common/utils/linux/test_remote_client.py
+++ b/tempest/tests/common/utils/linux/test_remote_client.py
@@ -182,7 +182,7 @@
                                            user='user',
                                            password='pass')))
         self.log = self.useFixture(fixtures.FakeLogger(
-            name='tempest.common.utils.linux.remote_client',
+            name='tempest.lib.common.utils.linux.remote_client',
             level='DEBUG'))
 
     def test_validate_debug_ssh_console(self):
diff --git a/tempest/tests/lib/common/utils/linux/__init__.py b/tempest/tests/lib/common/utils/linux/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/tests/lib/common/utils/linux/__init__.py
diff --git a/tempest/tests/lib/common/utils/linux/test_remote_client.py b/tempest/tests/lib/common/utils/linux/test_remote_client.py
new file mode 100644
index 0000000..cf312f4
--- /dev/null
+++ b/tempest/tests/lib/common/utils/linux/test_remote_client.py
@@ -0,0 +1,67 @@
+# Copyright 2017 NEC Corporation.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import mock
+
+from tempest.lib.common import ssh
+from tempest.lib.common.utils.linux import remote_client
+from tempest.lib import exceptions as lib_exc
+from tempest.tests import base
+
+
+class FakeServersClient(object):
+
+    def get_console_output(self, server_id):
+        return {"output": "fake_output"}
+
+
+class TestRemoteClient(base.TestCase):
+
+    @mock.patch.object(ssh.Client, 'exec_command', return_value='success')
+    def test_exec_command(self, mock_ssh_exec_command):
+        client = remote_client.RemoteClient('192.168.1.10', 'username')
+        client.exec_command('ls')
+        mock_ssh_exec_command.assert_called_once_with(
+            'set -eu -o pipefail; PATH=$$PATH:/sbin; ls')
+
+    @mock.patch.object(ssh.Client, 'test_connection_auth')
+    def test_validate_authentication(self, mock_test_connection_auth):
+        client = remote_client.RemoteClient('192.168.1.10', 'username')
+        client.validate_authentication()
+        mock_test_connection_auth.assert_called_once_with()
+
+    @mock.patch.object(remote_client.LOG, 'debug')
+    @mock.patch.object(ssh.Client, 'exec_command')
+    def test_debug_ssh_without_console(self, mock_exec_command, mock_debug):
+        mock_exec_command.side_effect = lib_exc.SSHTimeout
+        server = {'id': 'fake_id'}
+        client = remote_client.RemoteClient('192.168.1.10', 'username',
+                                            server=server)
+        self.assertRaises(lib_exc.SSHTimeout, client.exec_command, 'ls')
+        mock_debug.assert_called_with(
+            'Caller: %s. Timeout trying to ssh to server %s',
+            'TestRemoteClient:test_debug_ssh_without_console', server)
+
+    @mock.patch.object(remote_client.LOG, 'debug')
+    @mock.patch.object(ssh.Client, 'exec_command')
+    def test_debug_ssh_with_console(self, mock_exec_command, mock_debug):
+        mock_exec_command.side_effect = lib_exc.SSHTimeout
+        server = {'id': 'fake_id'}
+        client = remote_client.RemoteClient('192.168.1.10', 'username',
+                                            server=server,
+                                            servers_client=FakeServersClient())
+        self.assertRaises(lib_exc.SSHTimeout, client.exec_command, 'ls')
+        mock_debug.assert_called_with(
+            'Console log for server %s: %s', server['id'], 'fake_output')
diff --git a/tempest/tests/lib/services/identity/v3/test_versions_client.py b/tempest/tests/lib/services/identity/v3/test_versions_client.py
new file mode 100644
index 0000000..3bfaf1e
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_versions_client.py
@@ -0,0 +1,70 @@
+# Copyright 2017 NEC Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from tempest.lib.services.identity.v3 import versions_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestIdentityClient(base.BaseServiceTest):
+
+    FAKE_VERSIONS_INFO = {
+        "versions": {
+            "values": [
+                {"status": "stable", "updated": "2017-02-22T00:00:00Z",
+                 "media-types": [
+                     {"base": "application/json", "type":
+                      "application/vnd.openstack.identity-v3+json"}
+                 ],
+                 "id": "v3.8",
+                 "links": [
+                     {"href": "https://15.184.67.226/identity_admin/v3/",
+                      "rel": "self"}
+                 ]},
+                {"status": "deprecated", "updated": "2016-08-04T00:00:00Z",
+                 "media-types": [
+                     {"base": "application/json",
+                      "type": "application/vnd.openstack.identity-v2.0+json"}
+                 ],
+                 "id": "v2.0",
+                 "links": [
+                     {"href": "https://15.184.67.226/identity_admin/v2.0/",
+                      "rel": "self"},
+                     {"href": "https://docs.openstack.org/",
+                      "type": "text/html", "rel": "describedby"}
+                 ]}
+            ]
+        }
+    }
+
+    def setUp(self):
+        super(TestIdentityClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = versions_client.VersionsClient(fake_auth,
+                                                     'identity',
+                                                     'regionOne')
+
+    def _test_list_versions(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_versions,
+            'tempest.lib.common.rest_client.RestClient.raw_request',
+            self.FAKE_VERSIONS_INFO,
+            bytes_body,
+            300)
+
+    def test_list_versions_with_str_body(self):
+        self._test_list_versions()
+
+    def test_list_versions_with_bytes_body(self):
+        self._test_list_versions(bytes_body=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index 936d5aa..13950bd 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 # needed for doc build
 sphinx>=1.5.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0