diff --git a/REVIEWING.rst b/REVIEWING.rst
index 676a217..cfe7f4c 100644
--- a/REVIEWING.rst
+++ b/REVIEWING.rst
@@ -13,6 +13,13 @@
 it. Tests which aren't executed either because of configuration or skips should
 not be accepted.
 
+If a new test is added that depends on a new config option (like a feature
+flag), the commit message must reference a change in DevStack or DevStack-Gate
+that enables the execution of this newly introduced test. This reference could
+either be a `Cross-Repository Dependency <http://docs.openstack.org/infra/
+manual/developers.html#cross-repository-dependencies>`_ or a simple link
+to a Gerrit review.
+
 
 Unit Tests
 ----------
diff --git a/releasenotes/notes/13.1.0-volume-clients-as-library-309030c7a16e62ab.yaml b/releasenotes/notes/13.1.0-volume-clients-as-library-309030c7a16e62ab.yaml
new file mode 100644
index 0000000..056e199
--- /dev/null
+++ b/releasenotes/notes/13.1.0-volume-clients-as-library-309030c7a16e62ab.yaml
@@ -0,0 +1,10 @@
+---
+features:
+  - |
+    Define volume service clients as libraries.
+    The following volume service clients are defined as library interface,
+    so the other projects can use these modules as stable libraries without
+    any maintenance changes.
+
+    * volumes_client(v1)
+    * volumes_client(v2)
diff --git a/releasenotes/notes/add-cred-provider-abstract-class-to-lib-70ff513221f8a871.yaml b/releasenotes/notes/add-cred-provider-abstract-class-to-lib-70ff513221f8a871.yaml
new file mode 100644
index 0000000..6f7a411
--- /dev/null
+++ b/releasenotes/notes/add-cred-provider-abstract-class-to-lib-70ff513221f8a871.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - The cred_provider abstract class which serves as the basis for both
+    of tempest's cred providers, pre-provisioned credentials and dynamic
+    credentials, is now a library interface. This provides the common signature
+    required for building a credential provider.
diff --git a/requirements.txt b/requirements.txt
index 4af8bb3..fa6c413 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,6 @@
 oslo.utils>=3.16.0 # Apache-2.0
 six>=1.9.0 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
-testscenarios>=0.4 # 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
diff --git a/tempest/api/compute/admin/test_floating_ips_bulk.py b/tempest/api/compute/admin/test_floating_ips_bulk.py
index 456363c..e207aed 100644
--- a/tempest/api/compute/admin/test_floating_ips_bulk.py
+++ b/tempest/api/compute/admin/test_floating_ips_bulk.py
@@ -17,7 +17,7 @@
 
 from tempest.api.compute import base
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/compute/admin/test_live_migration.py b/tempest/api/compute/admin/test_live_migration.py
index 4e9bb88..72d5b18 100644
--- a/tempest/api/compute/admin/test_live_migration.py
+++ b/tempest/api/compute/admin/test_live_migration.py
@@ -128,8 +128,7 @@
     def test_live_block_migration_paused(self):
         self._test_live_migration(state='PAUSED')
 
-    @decorators.skip_because(bug="1549511",
-                             condition=CONF.service_available.neutron)
+    @decorators.skip_because(bug="1524898")
     @test.idempotent_id('5071cf17-3004-4257-ae61-73a84e28badd')
     @test.services('volume')
     def test_volume_backed_live_migration(self):
diff --git a/tempest/api/compute/images/test_list_image_filters.py b/tempest/api/compute/images/test_list_image_filters.py
index f340658..a9c2f7a 100644
--- a/tempest/api/compute/images/test_list_image_filters.py
+++ b/tempest/api/compute/images/test_list_image_filters.py
@@ -23,7 +23,7 @@
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 788dd8a..9077801 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -24,7 +24,6 @@
 from tempest.common.utils.linux import remote_client
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
@@ -331,7 +330,7 @@
         elif CONF.image_feature_enabled.api_v2:
             glance_client = self.os.image_client_v2
         else:
-            raise exceptions.InvalidConfiguration(
+            raise lib_exc.InvalidConfiguration(
                 'Either api_v1 or api_v2 must be True in '
                 '[image-feature-enabled].')
 
diff --git a/tempest/api/compute/volumes/test_attach_volume_negative.py b/tempest/api/compute/volumes/test_attach_volume_negative.py
new file mode 100644
index 0000000..b7fa0fe
--- /dev/null
+++ b/tempest/api/compute/volumes/test_attach_volume_negative.py
@@ -0,0 +1,41 @@
+# Copyright 2016 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.api.compute import base
+from tempest import config
+from tempest.lib import exceptions as lib_exc
+from tempest import test
+
+CONF = config.CONF
+
+
+class AttachVolumeNegativeTest(base.BaseV2ComputeTest):
+
+    @classmethod
+    def skip_checks(cls):
+        super(AttachVolumeNegativeTest, cls).skip_checks()
+        if not CONF.service_available.cinder:
+            skip_msg = ("%s skipped as Cinder is not available" % cls.__name__)
+            raise cls.skipException(skip_msg)
+
+    @test.idempotent_id('a313b5cd-fbd0-49cc-94de-870e99f763c7')
+    def test_delete_attached_volume(self):
+        server = self.create_test_server(wait_until='ACTIVE')
+        volume = self.create_volume()
+
+        path = "/dev/%s" % CONF.compute.volume_device_name
+        self.attach_volume(server, volume, device=path)
+
+        self.assertRaises(lib_exc.BadRequest,
+                          self.delete_volume, volume['id'])
diff --git a/tempest/api/image/v1/test_images.py b/tempest/api/image/v1/test_images.py
index 695efb5..269e297 100644
--- a/tempest/api/image/v1/test_images.py
+++ b/tempest/api/image/v1/test_images.py
@@ -20,7 +20,7 @@
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/network/admin/test_l3_agent_scheduler.py b/tempest/api/network/admin/test_l3_agent_scheduler.py
index d2e1492..dca4523 100644
--- a/tempest/api/network/admin/test_l3_agent_scheduler.py
+++ b/tempest/api/network/admin/test_l3_agent_scheduler.py
@@ -15,7 +15,7 @@
 from tempest.api.network import base
 from tempest.common.utils import data_utils
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/network/test_networks.py b/tempest/api/network/test_networks.py
index 3825f84..819ef90 100644
--- a/tempest/api/network/test_networks.py
+++ b/tempest/api/network/test_networks.py
@@ -296,7 +296,7 @@
                           subnet_id)
 
         # Since create_subnet adds the subnet to the delete list, and it is
-        # is actually deleted here - this will create and issue, hence remove
+        # actually deleted here - this will create and issue, hence remove
         # it from the list.
         self.subnets.pop()
 
diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index e5972a9..12539ba 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -23,7 +23,7 @@
 from tempest.common import custom_matchers
 from tempest.common.utils import data_utils
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/volume/admin/test_volumes_actions.py b/tempest/api/volume/admin/test_volumes_actions.py
index 728a9e6..e7a3f62 100644
--- a/tempest/api/volume/admin/test_volumes_actions.py
+++ b/tempest/api/volume/admin/test_volumes_actions.py
@@ -34,27 +34,26 @@
         # Create a test shared volume for tests
         cls.volume = cls.create_volume()
 
-    def _reset_volume_status(self, volume_id, status):
-        # Reset the volume status
-        self.admin_volume_client.reset_volume_status(volume_id, status=status)
-
     def tearDown(self):
         # Set volume's status to available after test
-        self._reset_volume_status(self.volume['id'], status='available')
+        self.admin_volume_client.reset_volume_status(
+            self.volume['id'], status='available')
         super(VolumesActionsV2Test, self).tearDown()
 
     def _create_reset_and_force_delete_temp_volume(self, status=None):
         # Create volume, reset volume status, and force delete temp volume
         temp_volume = self.create_volume()
         if status:
-            self._reset_volume_status(temp_volume['id'], status)
+            self.admin_volume_client.reset_volume_status(
+                temp_volume['id'], status=status)
         self.admin_volume_client.force_delete_volume(temp_volume['id'])
         self.client.wait_for_resource_deletion(temp_volume['id'])
 
     @test.idempotent_id('d063f96e-a2e0-4f34-8b8a-395c42de1845')
     def test_volume_reset_status(self):
         # test volume reset status : available->error->available
-        self._reset_volume_status(self.volume['id'], 'error')
+        self.admin_volume_client.reset_volume_status(
+            self.volume['id'], status='error')
         volume_get = self.admin_volume_client.show_volume(
             self.volume['id'])['volume']
         self.assertEqual('error', volume_get['status'])
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index b49a126..e6b8234 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -17,8 +17,8 @@
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
 from tempest.lib.common.utils import test_utils
+from tempest.lib import exceptions
 import tempest.test
 
 CONF = config.CONF
diff --git a/tempest/api/volume/test_volumes_actions.py b/tempest/api/volume/test_volumes_actions.py
index 9b48c89..83844e3 100644
--- a/tempest/api/volume/test_volumes_actions.py
+++ b/tempest/api/volume/test_volumes_actions.py
@@ -18,8 +18,8 @@
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
 from tempest.lib.common.utils import test_utils
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/clients.py b/tempest/clients.py
index 6cb6980..be6bc02 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -267,14 +267,14 @@
                     CONF.identity.uri, **self.default_params)
             else:
                 msg = 'Identity v2 API enabled, but no identity.uri set'
-                raise exceptions.InvalidConfiguration(msg)
+                raise lib_exc.InvalidConfiguration(msg)
         if CONF.identity_feature_enabled.api_v3:
             if CONF.identity.uri_v3:
                 self.token_v3_client = identity.v3.V3TokenClient(
                     CONF.identity.uri_v3, **self.default_params)
             else:
                 msg = 'Identity v3 API enabled, but no identity.uri_v3 set'
-                raise exceptions.InvalidConfiguration(msg)
+                raise lib_exc.InvalidConfiguration(msg)
 
     def _set_volume_clients(self):
         # Mandatory parameters (always defined)
diff --git a/tempest/cmd/account_generator.py b/tempest/cmd/account_generator.py
index f9d7a9b..1779252 100755
--- a/tempest/cmd/account_generator.py
+++ b/tempest/cmd/account_generator.py
@@ -144,6 +144,13 @@
         identity_version=identity_version,
         name=opts.tag,
         network_resources=network_resources,
+        neutron_available=CONF.service_available.neutron,
+        create_networks=CONF.auth.create_isolated_networks,
+        identity_admin_role=CONF.identity.admin_role,
+        identity_admin_domain_scope=CONF.identity.admin_domain_scope,
+        project_network_cidr=CONF.network.project_network_cidr,
+        project_network_mask_bits=CONF.network.project_network_mask_bits,
+        public_network_id=CONF.network.public_network_id,
         admin_creds=admin_creds,
         **credentials_factory.get_dynamic_provider_params())
 
diff --git a/tempest/common/credentials_factory.py b/tempest/common/credentials_factory.py
index c22afc1..5634958 100644
--- a/tempest/common/credentials_factory.py
+++ b/tempest/common/credentials_factory.py
@@ -17,8 +17,8 @@
 from tempest.common import dynamic_creds
 from tempest.common import preprov_creds
 from tempest import config
-from tempest import exceptions
 from tempest.lib import auth
+from tempest.lib import exceptions
 
 CONF = config.CONF
 
@@ -80,6 +80,16 @@
             network_resources=network_resources,
             identity_version=identity_version,
             admin_creds=admin_creds,
+            identity_admin_domain_scope=CONF.identity.admin_domain_scope,
+            identity_admin_role=CONF.identity.admin_role,
+            extra_roles=CONF.auth.tempest_roles,
+            neutron_available=CONF.service_available.neutron,
+            project_network_cidr=CONF.network.project_network_cidr,
+            project_network_mask_bits=CONF.network.project_network_mask_bits,
+            public_network_id=CONF.network.public_network_id,
+            create_networks=(CONF.auth.create_isolated_networks and not
+                             CONF.baremetal.driver_enabled),
+            resource_prefix=CONF.resources_prefix,
             **get_dynamic_provider_params())
     else:
         if CONF.auth.test_accounts_file:
diff --git a/tempest/common/dynamic_creds.py b/tempest/common/dynamic_creds.py
index b96b1c0..5c12fd8 100644
--- a/tempest/common/dynamic_creds.py
+++ b/tempest/common/dynamic_creds.py
@@ -18,20 +18,22 @@
 
 from tempest import clients
 from tempest.common import cred_client
-from tempest.common import cred_provider
-from tempest.common.utils import data_utils
-from tempest import config
-from tempest import exceptions
+from tempest.lib.common import cred_provider
+from tempest.lib.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
 
-CONF = config.CONF
 LOG = logging.getLogger(__name__)
 
 
 class DynamicCredentialProvider(cred_provider.CredentialProvider):
 
     def __init__(self, identity_version, name=None, network_resources=None,
-                 credentials_domain=None, admin_role=None, admin_creds=None):
+                 credentials_domain=None, admin_role=None, admin_creds=None,
+                 identity_admin_domain_scope=False,
+                 identity_admin_role='admin', extra_roles=None,
+                 neutron_available=False, create_networks=True,
+                 project_network_cidr=None, project_network_mask_bits=None,
+                 public_network_id=None, resource_prefix=None):
         """Creates credentials dynamically for tests
 
         A credential provider that, based on an initial set of
@@ -48,6 +50,23 @@
         :param dict network_resources: network resources to be created for
                                        the created credentials
         :param Credentials admin_creds: initial admin credentials
+        :param bool identity_admin_domain_scope: Set to true if admin should be
+                                                 scoped to the domain. By
+                                                 default this is False and the
+                                                 admin role is scoped to the
+                                                 project.
+        :param str identity_admin_role: The role name to use for admin
+        :param list extra_roles: A list of strings for extra roles that should
+                                 be assigned to all created users
+        :param bool neutron_available: Whether we are running in an environemnt
+                                       with neutron
+        :param bool create_networks: Whether dynamic project networks should be
+                                     created or not
+        :param project_network_cidr: The CIDR to use for created project
+                                     networks
+        :param project_network_mask_bits: The network mask bits to use for
+                                          created project networks
+        :param public_network_id: The id for the public network to use
         """
         super(DynamicCredentialProvider, self).__init__(
             identity_version=identity_version, admin_role=admin_role,
@@ -56,7 +75,16 @@
         self.network_resources = network_resources
         self._creds = {}
         self.ports = []
+        self.resource_prefix = resource_prefix or ''
+        self.neutron_available = neutron_available
+        self.create_networks = create_networks
+        self.project_network_cidr = project_network_cidr
+        self.project_network_mask_bits = project_network_mask_bits
+        self.public_network_id = public_network_id
         self.default_admin_creds = admin_creds
+        self.identity_admin_domain_scope = identity_admin_domain_scope
+        self.identity_admin_role = identity_admin_role or 'admin'
+        self.extra_roles = extra_roles or []
         (self.identity_admin_client,
          self.tenants_admin_client,
          self.users_admin_client,
@@ -98,7 +126,7 @@
         else:
             # We use a dedicated client manager for identity client in case we
             # need a different token scope for them.
-            scope = 'domain' if CONF.identity.admin_domain_scope else 'project'
+            scope = 'domain' if self.identity_admin_domain_scope else 'project'
             identity_os = clients.Manager(self.default_admin_creds,
                                           scope=scope)
             return (identity_os.identity_v3_client,
@@ -124,7 +152,7 @@
         """
         root = self.name
 
-        project_name = data_utils.rand_name(root)
+        project_name = data_utils.rand_name(root, prefix=self.resource_prefix)
         project_desc = project_name + "-desc"
         project = self.creds_client.create_project(
             name=project_name, description=project_desc)
@@ -133,7 +161,8 @@
         # having the same ID in both makes it easier to match them and debug.
         username = project_name
         user_password = data_utils.rand_password()
-        email = data_utils.rand_name(root) + "@example.com"
+        email = data_utils.rand_name(
+            root, prefix=self.resource_prefix) + "@example.com"
         user = self.creds_client.create_user(
             username, user_password, project, email)
         role_assigned = False
@@ -141,11 +170,11 @@
             self.creds_client.assign_user_role(user, project, self.admin_role)
             role_assigned = True
             if (self.identity_version == 'v3' and
-                    CONF.identity.admin_domain_scope):
+                    self.identity_admin_domain_scope):
                 self.creds_client.assign_user_role_on_domain(
-                    user, CONF.identity.admin_role)
+                    user, self.identity_admin_role)
         # Add roles specified in config file
-        for conf_role in CONF.auth.tempest_roles:
+        for conf_role in self.extra_roles:
             self.creds_client.assign_user_role(user, project, conf_role)
             role_assigned = True
         # Add roles requested by caller
@@ -189,26 +218,27 @@
             if self.network_resources['router']:
                 if (not self.network_resources['subnet'] or
                     not self.network_resources['network']):
-                    raise exceptions.InvalidConfiguration(
+                    raise lib_exc.InvalidConfiguration(
                         'A router requires a subnet and network')
             elif self.network_resources['subnet']:
                 if not self.network_resources['network']:
-                    raise exceptions.InvalidConfiguration(
+                    raise lib_exc.InvalidConfiguration(
                         'A subnet requires a network')
             elif self.network_resources['dhcp']:
-                raise exceptions.InvalidConfiguration('DHCP requires a subnet')
+                raise lib_exc.InvalidConfiguration('DHCP requires a subnet')
 
-        data_utils.rand_name_root = data_utils.rand_name(self.name)
+        rand_name_root = data_utils.rand_name(
+            self.name, prefix=self.resource_prefix)
         if not self.network_resources or self.network_resources['network']:
-            network_name = data_utils.rand_name_root + "-network"
+            network_name = rand_name_root + "-network"
             network = self._create_network(network_name, tenant_id)
         try:
             if not self.network_resources or self.network_resources['subnet']:
-                subnet_name = data_utils.rand_name_root + "-subnet"
+                subnet_name = rand_name_root + "-subnet"
                 subnet = self._create_subnet(subnet_name, tenant_id,
                                              network['id'])
             if not self.network_resources or self.network_resources['router']:
-                router_name = data_utils.rand_name_root + "-router"
+                router_name = rand_name_root + "-router"
                 router = self._create_router(router_name, tenant_id)
                 self._add_router_interface(router['id'], subnet['id'])
         except Exception:
@@ -234,8 +264,8 @@
         return resp_body['network']
 
     def _create_subnet(self, subnet_name, tenant_id, network_id):
-        base_cidr = netaddr.IPNetwork(CONF.network.project_network_cidr)
-        mask_bits = CONF.network.project_network_mask_bits
+        base_cidr = netaddr.IPNetwork(self.project_network_cidr)
+        mask_bits = self.project_network_mask_bits
         for subnet_cidr in base_cidr.subnet(mask_bits):
             try:
                 if self.network_resources:
@@ -264,7 +294,7 @@
 
     def _create_router(self, router_name, tenant_id):
         external_net_id = dict(
-            network_id=CONF.network.public_network_id)
+            network_id=self.public_network_id)
         resp_body = self.routers_admin_client.create_router(
             name=router_name,
             external_gateway_info=external_net_id,
@@ -288,9 +318,8 @@
             # Maintained until tests are ported
             LOG.info("Acquired dynamic creds:\n credentials: %s"
                      % credentials)
-            if (CONF.service_available.neutron and
-                not CONF.baremetal.driver_enabled and
-                CONF.auth.create_isolated_networks):
+            if (self.neutron_available and
+                self.create_networks):
                 network, subnet, router = self._create_network_resources(
                     credentials.tenant_id)
                 credentials.set_resources(network=network, subnet=subnet,
@@ -405,7 +434,7 @@
             # "circular dependency". So here just use try...except to
             # ensure tenant deletion without big changes.
             try:
-                if CONF.service_available.neutron:
+                if self.neutron_available:
                     self._cleanup_default_secgroup(creds.tenant_id)
             except lib_exc.NotFound:
                 LOG.warning("failed to cleanup tenant %s's secgroup" %
diff --git a/tempest/common/preprov_creds.py b/tempest/common/preprov_creds.py
index 5992d24..5e23696 100644
--- a/tempest/common/preprov_creds.py
+++ b/tempest/common/preprov_creds.py
@@ -21,10 +21,10 @@
 import yaml
 
 from tempest import clients
-from tempest.common import cred_provider
 from tempest.common import fixed_network
 from tempest import exceptions
 from tempest.lib import auth
+from tempest.lib.common import cred_provider
 from tempest.lib import exceptions as lib_exc
 
 LOG = logging.getLogger(__name__)
@@ -35,7 +35,7 @@
         with open(path, 'r') as yaml_file:
             accounts = yaml.load(yaml_file)
     except IOError:
-        raise exceptions.InvalidConfiguration(
+        raise lib_exc.InvalidConfiguration(
             'The path for the test accounts file: %s '
             'could not be found' % path)
     return accounts
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index 7cb9ebe..9ec217f 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -19,7 +19,6 @@
 from oslo_log import log as logging
 
 from tempest import config
-from tempest import exceptions
 from tempest.lib.common import ssh
 from tempest.lib.common.utils import test_utils
 import tempest.lib.exceptions
@@ -218,8 +217,8 @@
         supported_clients = ['udhcpc', 'dhclient']
         dhcp_client = CONF.scenario.dhcp_client
         if dhcp_client not in supported_clients:
-            raise exceptions.InvalidConfiguration('%s DHCP client unsupported'
-                                                  % dhcp_client)
+            raise tempest.lib.exceptions.InvalidConfiguration(
+                '%s DHCP client unsupported' % dhcp_client)
         if dhcp_client == 'udhcpc' and not fixed_ip:
             raise ValueError("need to set 'fixed_ip' for udhcpc client")
         return getattr(self, '_renew_lease_' + dhcp_client)(fixed_ip=fixed_ip)
diff --git a/tempest/config.py b/tempest/config.py
index 1940393..8ce38f9 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -245,7 +245,7 @@
                     "projects. If multiple networks are available for a "
                     "project, this is the network which will be used for "
                     "creating servers if tempest does not create a network or "
-                    "s network is not specified elsewhere. It may be used for "
+                    "a network is not specified elsewhere. It may be used for "
                     "ssh validation only if floating IPs are disabled."),
     cfg.StrOpt('catalog_type',
                default='compute',
@@ -347,12 +347,10 @@
                 help="Does the test environment support suspend/resume?"),
     cfg.BoolOpt('cold_migration',
                 default=True,
-                help="Does the test environment support cold migration "
-                     "available?"),
+                help="Does the test environment support cold migration?"),
     cfg.BoolOpt('live_migration',
                 default=True,
-                help="Does the test environment support live migration "
-                     "available?"),
+                help="Does the test environment support live migration?"),
     cfg.BoolOpt('metadata_service',
                 default=True,
                 help="Does the test environment support metadata service? "
diff --git a/tempest/exceptions.py b/tempest/exceptions.py
index da32693..727d54e 100644
--- a/tempest/exceptions.py
+++ b/tempest/exceptions.py
@@ -17,10 +17,6 @@
 from tempest.lib import exceptions
 
 
-class InvalidConfiguration(exceptions.TempestException):
-    message = "Invalid Configuration"
-
-
 class InvalidServiceTag(exceptions.TempestException):
     message = "Invalid service tag"
 
diff --git a/tempest/common/cred_provider.py b/tempest/lib/common/cred_provider.py
similarity index 100%
rename from tempest/common/cred_provider.py
rename to tempest/lib/common/cred_provider.py
diff --git a/tempest/lib/exceptions.py b/tempest/lib/exceptions.py
index a5c6b1b..a6c01bb 100644
--- a/tempest/lib/exceptions.py
+++ b/tempest/lib/exceptions.py
@@ -149,6 +149,10 @@
     message = "Unexpected response code received"
 
 
+class InvalidConfiguration(TempestException):
+    message = "Invalid Configuration"
+
+
 class InvalidIdentityVersion(TempestException):
     message = "Invalid version %(identity_version)s of the identity service"
 
diff --git a/tempest/services/volume/base/base_volumes_client.py b/tempest/lib/services/volume/v1/volumes_client.py
similarity index 98%
rename from tempest/services/volume/base/base_volumes_client.py
rename to tempest/lib/services/volume/v1/volumes_client.py
index 1cb1ef5..3df8da4 100644
--- a/tempest/services/volume/base/base_volumes_client.py
+++ b/tempest/lib/services/volume/v1/volumes_client.py
@@ -21,11 +21,9 @@
 from tempest.lib import exceptions as lib_exc
 
 
-class BaseVolumesClient(rest_client.RestClient):
+class VolumesClient(rest_client.RestClient):
     """Base client class to send CRUD Volume API requests"""
 
-    create_resp = 200
-
     def _prepare_params(self, params):
         """Prepares params for use in get or _ext_get methods.
 
@@ -69,7 +67,7 @@
         post_body = json.dumps({'volume': kwargs})
         resp, body = self.post('volumes', post_body)
         body = json.loads(body)
-        self.expected_success(self.create_resp, resp.status)
+        self.expected_success(200, resp.status)
         return rest_client.ResponseBody(resp, body)
 
     def update_volume(self, volume_id, **kwargs):
diff --git a/tempest/services/volume/base/base_volumes_client.py b/tempest/lib/services/volume/v2/volumes_client.py
similarity index 84%
copy from tempest/services/volume/base/base_volumes_client.py
copy to tempest/lib/services/volume/v2/volumes_client.py
index 1cb1ef5..b1930e1 100644
--- a/tempest/services/volume/base/base_volumes_client.py
+++ b/tempest/lib/services/volume/v2/volumes_client.py
@@ -21,10 +21,9 @@
 from tempest.lib import exceptions as lib_exc
 
 
-class BaseVolumesClient(rest_client.RestClient):
-    """Base client class to send CRUD Volume API requests"""
-
-    create_resp = 200
+class VolumesClient(rest_client.RestClient):
+    """Client class to send CRUD Volume V2 API requests"""
+    api_version = "v2"
 
     def _prepare_params(self, params):
         """Prepares params for use in get or _ext_get methods.
@@ -69,7 +68,7 @@
         post_body = json.dumps({'volume': kwargs})
         resp, body = self.post('volumes', post_body)
         body = json.loads(body)
-        self.expected_success(self.create_resp, resp.status)
+        self.expected_success(202, resp.status)
         return rest_client.ResponseBody(resp, body)
 
     def update_volume(self, volume_id, **kwargs):
@@ -293,3 +292,49 @@
         post_body = json.dumps({'os-retype': kwargs})
         resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         self.expected_success(202, resp.status)
+
+    def update_volume_image_metadata(self, volume_id, **kwargs):
+        """Update image metadata for the volume.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-blockstorage-v2.html
+                              #setVolumeimagemetadata
+        """
+        post_body = json.dumps({'os-set_image_metadata': {'metadata': kwargs}})
+        url = "volumes/%s/action" % (volume_id)
+        resp, body = self.post(url, post_body)
+        body = json.loads(body)
+        self.expected_success(200, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_volume_image_metadata(self, volume_id, key_name):
+        """Delete image metadata item for the volume."""
+        post_body = json.dumps({'os-unset_image_metadata': {'key': key_name}})
+        url = "volumes/%s/action" % (volume_id)
+        resp, body = self.post(url, post_body)
+        self.expected_success(200, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def show_pools(self, detail=False):
+        # List all the volumes pools (hosts)
+        url = 'scheduler-stats/get_pools'
+        if detail:
+            url += '?detail=True'
+
+        resp, body = self.get(url)
+        body = json.loads(body)
+        self.expected_success(200, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def show_backend_capabilities(self, host):
+        """Shows capabilities for a storage back end.
+
+         Output params: see http://developer.openstack.org/
+                            api-ref-blockstorage-v2.html
+                            #showBackendCapabilities
+        """
+        url = 'capabilities/%s' % host
+        resp, body = self.get(url)
+        body = json.loads(body)
+        self.expected_success(200, resp.status)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 9559cab..54a2577 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -57,7 +57,7 @@
             elif CONF.image_feature_enabled.api_v2:
                 cls.image_client = cls.manager.image_client_v2
             else:
-                raise exceptions.InvalidConfiguration(
+                raise lib_exc.InvalidConfiguration(
                     'Either api_v1 or api_v2 must be True in '
                     '[image-feature-enabled].')
         # Compute image client
@@ -639,7 +639,7 @@
                     return address['addr']
             raise exceptions.ServerUnreachable(server_id=server['id'])
         else:
-            raise exceptions.InvalidConfiguration()
+            raise lib_exc.InvalidConfiguration()
 
 
 class NetworkScenarioTest(ScenarioTest):
@@ -1177,7 +1177,7 @@
             # https://blueprints.launchpad.net/tempest/+spec/test-accounts
             if not CONF.compute.fixed_network_name:
                 m = 'fixed_network_name must be specified in config'
-                raise exceptions.InvalidConfiguration(m)
+                raise lib_exc.InvalidConfiguration(m)
             network = self._get_network_by_name(
                 CONF.compute.fixed_network_name)
             router = None
diff --git a/tempest/scenario/test_server_multinode.py b/tempest/scenario/test_server_multinode.py
index b323d2a..333079c 100644
--- a/tempest/scenario/test_server_multinode.py
+++ b/tempest/scenario/test_server_multinode.py
@@ -15,7 +15,7 @@
 
 
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest.scenario import manager
 from tempest import test
 
diff --git a/tempest/services/volume/v1/__init__.py b/tempest/services/volume/v1/__init__.py
index 376ab72..7fb3ed3 100644
--- a/tempest/services/volume/v1/__init__.py
+++ b/tempest/services/volume/v1/__init__.py
@@ -24,7 +24,7 @@
 from tempest.lib.services.volume.v1.services_client import ServicesClient
 from tempest.lib.services.volume.v1.snapshots_client import SnapshotsClient
 from tempest.lib.services.volume.v1.types_client import TypesClient
-from tempest.services.volume.v1.json.volumes_client import VolumesClient
+from tempest.lib.services.volume.v1.volumes_client import VolumesClient
 
 __all__ = ['AvailabilityZoneClient', 'EncryptionTypesClient',
            'ExtensionsClient', 'HostsClient', 'QuotasClient',
diff --git a/tempest/services/volume/v1/json/volumes_client.py b/tempest/services/volume/v1/json/volumes_client.py
deleted file mode 100644
index 7782043..0000000
--- a/tempest/services/volume/v1/json/volumes_client.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2012 OpenStack Foundation
-# 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.services.volume.base import base_volumes_client
-
-
-class VolumesClient(base_volumes_client.BaseVolumesClient):
-    """Client class to send CRUD Volume V1 API requests"""
diff --git a/tempest/services/volume/v2/__init__.py b/tempest/services/volume/v2/__init__.py
index 5774977..8edaf2a 100644
--- a/tempest/services/volume/v2/__init__.py
+++ b/tempest/services/volume/v2/__init__.py
@@ -24,7 +24,7 @@
 from tempest.lib.services.volume.v2.services_client import ServicesClient
 from tempest.lib.services.volume.v2.snapshots_client import SnapshotsClient
 from tempest.lib.services.volume.v2.types_client import TypesClient
-from tempest.services.volume.v2.json.volumes_client import VolumesClient
+from tempest.lib.services.volume.v2.volumes_client import VolumesClient
 
 __all__ = ['AvailabilityZoneClient', 'BackupsClient', 'EncryptionTypesClient',
            'ExtensionsClient', 'HostsClient', 'QosSpecsClient', 'QuotasClient',
diff --git a/tempest/services/volume/v2/json/volumes_client.py b/tempest/services/volume/v2/json/volumes_client.py
deleted file mode 100644
index f21a1a3..0000000
--- a/tempest/services/volume/v2/json/volumes_client.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# Copyright 2012 OpenStack Foundation
-# 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 oslo_serialization import jsonutils as json
-
-from tempest.lib.common import rest_client
-from tempest.services.volume.base import base_volumes_client
-
-
-class VolumesClient(base_volumes_client.BaseVolumesClient):
-    """Client class to send CRUD Volume V2 API requests"""
-    api_version = "v2"
-    create_resp = 202
-
-    def update_volume_image_metadata(self, volume_id, **kwargs):
-        """Update image metadata for the volume.
-
-        Available params: see http://developer.openstack.org/
-                              api-ref-blockstorage-v2.html
-                              #setVolumeimagemetadata
-        """
-        post_body = json.dumps({'os-set_image_metadata': {'metadata': kwargs}})
-        url = "volumes/%s/action" % (volume_id)
-        resp, body = self.post(url, post_body)
-        body = json.loads(body)
-        self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, body)
-
-    def delete_volume_image_metadata(self, volume_id, key_name):
-        """Delete image metadata item for the volume."""
-        post_body = json.dumps({'os-unset_image_metadata': {'key': key_name}})
-        url = "volumes/%s/action" % (volume_id)
-        resp, body = self.post(url, post_body)
-        self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, body)
-
-    def show_pools(self, detail=False):
-        # List all the volumes pools (hosts)
-        url = 'scheduler-stats/get_pools'
-        if detail:
-            url += '?detail=True'
-
-        resp, body = self.get(url)
-        body = json.loads(body)
-        self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, body)
-
-    def show_backend_capabilities(self, host):
-        """Shows capabilities for a storage back end.
-
-         Output params: see http://developer.openstack.org/
-                            api-ref-blockstorage-v2.html
-                            #showBackendCapabilities
-        """
-        url = 'capabilities/%s' % host
-        resp, body = self.get(url)
-        body = json.loads(body)
-        self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/tests/common/test_dynamic_creds.py b/tempest/tests/common/test_dynamic_creds.py
index 0033d4e..a90ca8a 100644
--- a/tempest/tests/common/test_dynamic_creds.py
+++ b/tempest/tests/common/test_dynamic_creds.py
@@ -19,7 +19,6 @@
 from tempest.common import credentials_factory as credentials
 from tempest.common import dynamic_creds
 from tempest import config
-from tempest import exceptions
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions as lib_exc
 from tempest.lib.services.identity.v2 import identity_client as v2_iden_client
@@ -176,7 +175,6 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_primary_creds(self, MockRestClient):
-        cfg.CONF.set_default('neutron', False, 'service_available')
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
@@ -191,7 +189,6 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_admin_creds(self, MockRestClient):
-        cfg.CONF.set_default('neutron', False, 'service_available')
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
         self._mock_list_roles('1234', 'admin')
         self._mock_user_create('1234', 'fake_admin_user')
@@ -214,7 +211,6 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_role_creds(self, MockRestClient):
-        cfg.CONF.set_default('neutron', False, 'service_available')
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
         self._mock_list_2_roles()
         self._mock_user_create('1234', 'fake_role_user')
@@ -243,7 +239,6 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_all_cred_cleanup(self, MockRestClient):
-        cfg.CONF.set_default('neutron', False, 'service_available')
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
@@ -281,7 +276,6 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_alt_creds(self, MockRestClient):
-        cfg.CONF.set_default('neutron', False, 'service_available')
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
@@ -296,8 +290,10 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_no_network_creation_with_config_set(self, MockRestClient):
-        cfg.CONF.set_default('create_isolated_networks', False, group='auth')
-        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True, create_networks=False,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
+            **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
         self._mock_user_create('1234', 'fake_prim_user')
@@ -325,7 +321,10 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_network_creation(self, MockRestClient):
-        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
+            **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
         self._mock_user_create('1234', 'fake_prim_user')
@@ -356,7 +355,10 @@
                                          "description": args['name'],
                                          "security_group_rules": [],
                                          "id": "sg-%s" % args['tenant_id']}]}
-        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
+            **self.fixed_params)
         # Create primary tenant and network
         self._mock_assign_user_role()
         self._mock_list_role()
@@ -460,7 +462,10 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_network_alt_creation(self, MockRestClient):
-        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
+            **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
         self._mock_user_create('1234', 'fake_alt_user')
@@ -485,7 +490,10 @@
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_network_admin_creation(self, MockRestClient):
-        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
+            **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_user_create('1234', 'fake_admin_user')
         self._mock_tenant_create('1234', 'fake_admin_tenant')
@@ -517,6 +525,8 @@
             'dhcp': False,
         }
         creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
             network_resources=net_dict,
             **self.fixed_params)
         self._mock_assign_user_role()
@@ -553,13 +563,15 @@
             'dhcp': False,
         }
         creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
             network_resources=net_dict,
             **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
         self._mock_user_create('1234', 'fake_prim_user')
         self._mock_tenant_create('1234', 'fake_prim_tenant')
-        self.assertRaises(exceptions.InvalidConfiguration,
+        self.assertRaises(lib_exc.InvalidConfiguration,
                           creds.get_primary_creds)
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
@@ -571,13 +583,15 @@
             'dhcp': False,
         }
         creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
             network_resources=net_dict,
             **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
         self._mock_user_create('1234', 'fake_prim_user')
         self._mock_tenant_create('1234', 'fake_prim_tenant')
-        self.assertRaises(exceptions.InvalidConfiguration,
+        self.assertRaises(lib_exc.InvalidConfiguration,
                           creds.get_primary_creds)
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
@@ -589,13 +603,15 @@
             'dhcp': True,
         }
         creds = dynamic_creds.DynamicCredentialProvider(
+            neutron_available=True,
+            project_network_cidr='10.100.0.0/16', project_network_mask_bits=28,
             network_resources=net_dict,
             **self.fixed_params)
         self._mock_assign_user_role()
         self._mock_list_role()
         self._mock_user_create('1234', 'fake_prim_user')
         self._mock_tenant_create('1234', 'fake_prim_tenant')
-        self.assertRaises(exceptions.InvalidConfiguration,
+        self.assertRaises(lib_exc.InvalidConfiguration,
                           creds.get_primary_creds)
 
 
diff --git a/tempest/tests/common/test_preprov_creds.py b/tempest/tests/common/test_preprov_creds.py
index 13d4713..f824b6c 100644
--- a/tempest/tests/common/test_preprov_creds.py
+++ b/tempest/tests/common/test_preprov_creds.py
@@ -23,10 +23,10 @@
 import shutil
 import six
 
-from tempest.common import cred_provider
 from tempest.common import preprov_creds
 from tempest import config
 from tempest.lib import auth
+from tempest.lib.common import cred_provider
 from tempest.lib import exceptions as lib_exc
 from tempest.tests import base
 from tempest.tests import fake_config
diff --git a/tempest/tests/common/test_waiters.py b/tempest/tests/common/test_waiters.py
index a56f837..a826337 100644
--- a/tempest/tests/common/test_waiters.py
+++ b/tempest/tests/common/test_waiters.py
@@ -18,7 +18,7 @@
 
 from tempest.common import waiters
 from tempest import exceptions
-from tempest.services.volume.base import base_volumes_client
+from tempest.lib.services.volume.v2 import volumes_client
 from tempest.tests import base
 import tempest.tests.utils as utils
 
@@ -57,7 +57,7 @@
     def test_wait_for_volume_status_error_restoring(self, mock_sleep):
         # Tests that the wait method raises VolumeRestoreErrorException if
         # the volume status is 'error_restoring'.
-        client = mock.Mock(spec=base_volumes_client.BaseVolumesClient,
+        client = mock.Mock(spec=volumes_client.VolumesClient,
                            build_interval=1)
         volume1 = {'volume': {'status': 'restoring-backup'}}
         volume2 = {'volume': {'status': 'error_restoring'}}