diff --git a/etc/accounts.yaml.sample b/etc/accounts.yaml.sample
index 54fdcad..64ff8a7 100644
--- a/etc/accounts.yaml.sample
+++ b/etc/accounts.yaml.sample
@@ -9,3 +9,27 @@
 - username: 'user_2'
   tenant_name: 'test_tenant_2'
   password: 'test_password'
+
+# To specify which roles a user has list them under the roles field
+- username: 'multi_role_user'
+  tenant_name: 'test_tenant_42'
+  password: 'test_password'
+  roles:
+    - 'fun_role'
+    - 'not_an_admin'
+    - 'an_admin'
+
+# To specify a user has a role specified in the config file you can use the
+# type field to specify it, valid values are admin, operator, and reseller_admin
+- username: 'swift_pseudo_admin_user_1'
+  tenant_name: 'admin_tenant_1'
+  password: 'test_password'
+  types:
+     - 'reseller_admin'
+     - 'operator'
+
+- username: 'admin_user_1'
+  tenant_name: 'admin_tenant_1'
+  password: 'test_password'
+  types:
+     - 'admin'
diff --git a/tempest/api/compute/servers/test_delete_server.py b/tempest/api/compute/servers/test_delete_server.py
index 8842899..6155958 100644
--- a/tempest/api/compute/servers/test_delete_server.py
+++ b/tempest/api/compute/servers/test_delete_server.py
@@ -123,7 +123,7 @@
         device = '/dev/%s' % CONF.compute.volume_device_name
         server = self.create_test_server(wait_until='ACTIVE')
 
-        volume = volumes_client.create_volume(1)
+        volume = volumes_client.create_volume()
         self.addCleanup(volumes_client.delete_volume, volume['id'])
         volumes_client.wait_for_volume_status(volume['id'], 'available')
         self.client.attach_volume(server['id'],
diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index 6e23334..7564758 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -58,7 +58,7 @@
 
     def _create_volume(self):
         volume = self.volumes_extensions_client.create_volume(
-            1, display_name=data_utils.rand_name(
+            CONF.volume.volume_size, display_name=data_utils.rand_name(
                 self.__class__.__name__ + '_volume'))
         self.addCleanup(self.delete_volume, volume['id'])
         self.volumes_extensions_client.wait_for_volume_status(
diff --git a/tempest/api/compute/test_live_block_migration.py b/tempest/api/compute/test_live_block_migration.py
index a933f81..d2221e1 100644
--- a/tempest/api/compute/test_live_block_migration.py
+++ b/tempest/api/compute/test_live_block_migration.py
@@ -115,7 +115,7 @@
         actual_host = self._get_host_for_server(server_id)
         target_host = self._get_host_other_than(actual_host)
 
-        volume = self.volumes_client.create_volume(1, display_name='test')
+        volume = self.volumes_client.create_volume(display_name='test')
 
         self.volumes_client.wait_for_volume_status(volume['id'],
                                                    'available')
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index 43d2302..12d5b0e 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -70,7 +70,7 @@
 
         # Create a volume and wait for it to become ready
         self.volume = self.volumes_client.create_volume(
-            1, display_name='test')
+            CONF.volume.volume_size, display_name='test')
         self.addCleanup(self._delete_volume)
         self.volumes_client.wait_for_volume_status(self.volume['id'],
                                                    'available')
diff --git a/tempest/api/compute/volumes/test_volumes_get.py b/tempest/api/compute/volumes/test_volumes_get.py
index 207476d..5f84c73 100644
--- a/tempest/api/compute/volumes/test_volumes_get.py
+++ b/tempest/api/compute/volumes/test_volumes_get.py
@@ -46,8 +46,7 @@
         v_name = data_utils.rand_name('Volume')
         metadata = {'Type': 'work'}
         # Create volume
-        volume = self.client.create_volume(size=1,
-                                           display_name=v_name,
+        volume = self.client.create_volume(display_name=v_name,
                                            metadata=metadata)
         self.addCleanup(self.delete_volume, volume['id'])
         self.assertIn('id', volume)
diff --git a/tempest/api/compute/volumes/test_volumes_list.py b/tempest/api/compute/volumes/test_volumes_list.py
index 501e9ed..bd126d8 100644
--- a/tempest/api/compute/volumes/test_volumes_list.py
+++ b/tempest/api/compute/volumes/test_volumes_list.py
@@ -53,8 +53,7 @@
             v_name = data_utils.rand_name('volume')
             metadata = {'Type': 'work'}
             try:
-                volume = cls.client.create_volume(size=1,
-                                                  display_name=v_name,
+                volume = cls.client.create_volume(display_name=v_name,
                                                   metadata=metadata)
                 cls.client.wait_for_volume_status(volume['id'], 'available')
                 volume = cls.client.get_volume(volume['id'])
diff --git a/tempest/api/network/admin/test_external_network_extension.py b/tempest/api/network/admin/test_external_network_extension.py
index 20b4e31..d942641 100644
--- a/tempest/api/network/admin/test_external_network_extension.py
+++ b/tempest/api/network/admin/test_external_network_extension.py
@@ -101,7 +101,8 @@
         self.addCleanup(self._try_delete_resource,
                         client.delete_network,
                         external_network['id'])
-        subnet = self.create_subnet(external_network, client=client)
+        subnet = self.create_subnet(external_network, client=client,
+                                    enable_dhcp=False)
         body = client.create_floatingip(
             floating_network_id=external_network['id'])
         created_floating_ip = body['floatingip']
diff --git a/tempest/api/network/test_security_groups.py b/tempest/api/network/test_security_groups.py
index 8479013..79d2046 100644
--- a/tempest/api/network/test_security_groups.py
+++ b/tempest/api/network/test_security_groups.py
@@ -176,7 +176,7 @@
         sg_id = group_create_body['security_group']['id']
         direction = 'ingress'
         protocol = 'icmp'
-        icmp_type_codes = [(3, 2), (2, 3), (3, 0), (2, None)]
+        icmp_type_codes = [(3, 2), (3, 0), (8, 0), (0, 0), (11, None)]
         for icmp_type, icmp_code in icmp_type_codes:
             self._create_verify_security_group_rule(sg_id, direction,
                                                     self.ethertype, protocol,
diff --git a/tempest/api/object_storage/base.py b/tempest/api/object_storage/base.py
index 6a025d9..42062e7 100644
--- a/tempest/api/object_storage/base.py
+++ b/tempest/api/object_storage/base.py
@@ -15,7 +15,6 @@
 
 from tempest_lib import exceptions as lib_exc
 
-from tempest.api.identity import base
 from tempest import clients
 from tempest.common import credentials
 from tempest.common import custom_matchers
@@ -33,6 +32,11 @@
         if not CONF.service_available.swift:
             skip_msg = ("%s skipped as swift is not available" % cls.__name__)
             raise cls.skipException(skip_msg)
+        if not CONF.auth.allow_tenant_isolation and \
+            not CONF.auth.locking_credentials_provider:
+            skip_msg = ("%s skipped because a credential provider able to "
+                        "provide credentials by role is needed" % cls.__name__)
+            raise cls.skipException(skip_msg)
 
     @classmethod
     def setup_credentials(cls):
@@ -42,25 +46,15 @@
         cls.isolated_creds = credentials.get_isolated_credentials(
             cls.__name__, network_resources=cls.network_resources)
         # Get isolated creds for normal user
-        cls.os = clients.Manager(cls.isolated_creds.get_primary_creds())
-        # Get isolated creds for admin user
-        cls.os_admin = clients.Manager(cls.isolated_creds.get_admin_creds())
-        cls.data = SwiftDataGenerator(cls.os_admin.identity_client)
-        # Get isolated creds for alt user
-        cls.os_alt = clients.Manager(cls.isolated_creds.get_alt_creds())
+        cls.os = clients.Manager(cls.isolated_creds.get_creds_by_roles(
+            [CONF.object_storage.operator_role]))
 
     @classmethod
     def setup_clients(cls):
         super(BaseObjectTest, cls).setup_clients()
-
         cls.object_client = cls.os.object_client
         cls.container_client = cls.os.container_client
         cls.account_client = cls.os.account_client
-        cls.token_client = cls.os_admin.token_client
-        cls.identity_admin_client = cls.os_admin.identity_client
-        cls.object_client_alt = cls.os_alt.object_client
-        cls.container_client_alt = cls.os_alt.container_client
-        cls.identity_client_alt = cls.os_alt.identity_client
 
     @classmethod
     def resource_setup(cls):
@@ -70,12 +64,9 @@
         cls.object_client.auth_provider.clear_auth()
         cls.container_client.auth_provider.clear_auth()
         cls.account_client.auth_provider.clear_auth()
-        cls.object_client_alt.auth_provider.clear_auth()
-        cls.container_client_alt.auth_provider.clear_auth()
 
     @classmethod
     def resource_cleanup(cls):
-        cls.data.teardown_all()
         cls.isolated_creds.clear_isolated_creds()
         super(BaseObjectTest, cls).resource_cleanup()
 
@@ -119,28 +110,3 @@
         self.assertThat(resp, custom_matchers.ExistsAllResponseHeaders(
                         target, method))
         self.assertThat(resp, custom_matchers.AreAllWellFormatted())
-
-
-class SwiftDataGenerator(base.DataGenerator):
-
-    def setup_test_user(self, reseller=False):
-        super(SwiftDataGenerator, self).setup_test_user()
-        if reseller:
-            role_name = CONF.object_storage.reseller_admin_role
-        else:
-            role_name = CONF.object_storage.operator_role
-        role_id = self._get_role_id(role_name)
-        self._assign_role(role_id)
-
-    def _get_role_id(self, role_name):
-        try:
-            roles = self.client.list_roles()
-            return next(r['id'] for r in roles if r['name'] == role_name)
-        except StopIteration:
-            msg = "Role name '%s' is not found" % role_name
-            raise lib_exc.NotFound(msg)
-
-    def _assign_role(self, role_id):
-        self.client.assign_user_role(self.tenant['id'],
-                                     self.user['id'],
-                                     role_id)
diff --git a/tempest/api/object_storage/test_account_quotas.py b/tempest/api/object_storage/test_account_quotas.py
index 9b379f4..0c7e991 100644
--- a/tempest/api/object_storage/test_account_quotas.py
+++ b/tempest/api/object_storage/test_account_quotas.py
@@ -26,8 +26,9 @@
     @classmethod
     def setup_credentials(cls):
         super(AccountQuotasTest, cls).setup_credentials()
-        cls.data.setup_test_user(reseller=True)
-        cls.os_reselleradmin = clients.Manager(cls.data.test_credentials)
+        cls.os_reselleradmin = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.reseller_admin_role]))
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/object_storage/test_account_quotas_negative.py b/tempest/api/object_storage/test_account_quotas_negative.py
index cbb25cc..d1e8f77 100644
--- a/tempest/api/object_storage/test_account_quotas_negative.py
+++ b/tempest/api/object_storage/test_account_quotas_negative.py
@@ -29,8 +29,9 @@
     @classmethod
     def setup_credentials(cls):
         super(AccountQuotasNegativeTest, cls).setup_credentials()
-        cls.data.setup_test_user(reseller=True)
-        cls.os_reselleradmin = clients.Manager(cls.data.test_credentials)
+        cls.os_reselleradmin = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.reseller_admin_role]))
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/object_storage/test_account_services.py b/tempest/api/object_storage/test_account_services.py
index 63d0425..14ccc12 100644
--- a/tempest/api/object_storage/test_account_services.py
+++ b/tempest/api/object_storage/test_account_services.py
@@ -32,6 +32,13 @@
     containers = []
 
     @classmethod
+    def setup_credentials(cls):
+        super(AccountTest, cls).setup_credentials()
+        cls.os_operator = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.operator_role], force_new=True))
+
+    @classmethod
     def resource_setup(cls):
         super(AccountTest, cls).resource_setup()
         for i in moves.xrange(ord('a'), ord('f') + 1):
@@ -63,12 +70,9 @@
 
         # To test listing no containers, create new user other than
         # the base user of this instance.
-        self.data.setup_test_user()
-
-        os_test_user = clients.Manager(self.data.test_credentials)
 
         resp, container_list = \
-            os_test_user.account_client.list_account_containers()
+            self.os_operator.account_client.list_account_containers()
 
         # When sending a request to an account which has not received a PUT
         # container request, the response does not contain 'accept-ranges'
diff --git a/tempest/api/object_storage/test_account_services_negative.py b/tempest/api/object_storage/test_account_services_negative.py
index 3be236c..4a482da 100644
--- a/tempest/api/object_storage/test_account_services_negative.py
+++ b/tempest/api/object_storage/test_account_services_negative.py
@@ -16,20 +16,27 @@
 
 from tempest.api.object_storage import base
 from tempest import clients
+from tempest import config
 from tempest import test
 
+CONF = config.CONF
+
 
 class AccountNegativeTest(base.BaseObjectTest):
 
+    @classmethod
+    def setup_credentials(cls):
+        super(AccountNegativeTest, cls).setup_credentials()
+        cls.os_operator = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.operator_role], force_new=True))
+
     @test.attr(type=['negative', 'gate'])
     @test.idempotent_id('070e6aca-6152-4867-868d-1118d68fb38c')
     def test_list_containers_with_non_authorized_user(self):
         # list containers using non-authorized user
 
-        # create user
-        self.data.setup_test_user()
-        test_os = clients.Manager(self.data.test_credentials)
-        test_auth_provider = test_os.auth_provider
+        test_auth_provider = self.os_operator.auth_provider
         # Get auth for the test user
         test_auth_provider.auth_data
 
diff --git a/tempest/api/object_storage/test_container_acl.py b/tempest/api/object_storage/test_container_acl.py
index 6368bec..2c00022 100644
--- a/tempest/api/object_storage/test_container_acl.py
+++ b/tempest/api/object_storage/test_container_acl.py
@@ -16,21 +16,25 @@
 from tempest.api.object_storage import base
 from tempest import clients
 from tempest.common.utils import data_utils
+from tempest import config
 from tempest import test
 
+CONF = config.CONF
+
 
 class ObjectTestACLs(base.BaseObjectTest):
 
     @classmethod
     def setup_credentials(cls):
         super(ObjectTestACLs, cls).setup_credentials()
-        cls.data.setup_test_user()
-        cls.test_os = clients.Manager(cls.data.test_credentials)
+        cls.os_operator = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.operator_role], force_new=True))
 
     @classmethod
     def resource_setup(cls):
         super(ObjectTestACLs, cls).resource_setup()
-        cls.test_auth_data = cls.test_os.auth_provider.auth_data
+        cls.test_auth_data = cls.os_operator.auth_provider.auth_data
 
     def setUp(self):
         super(ObjectTestACLs, self).setUp()
@@ -46,8 +50,9 @@
     def test_read_object_with_rights(self):
         # attempt to read object using authorized user
         # update X-Container-Read metadata ACL
-        cont_headers = {'X-Container-Read':
-                        self.data.test_tenant + ':' + self.data.test_user}
+        tenant_name = self.os_operator.credentials.tenant_name
+        username = self.os_operator.credentials.username
+        cont_headers = {'X-Container-Read': tenant_name + ':' + username}
         resp_meta, body = self.container_client.update_container_metadata(
             self.container_name, metadata=cont_headers,
             metadata_prefix='')
@@ -71,8 +76,9 @@
     def test_write_object_with_rights(self):
         # attempt to write object using authorized user
         # update X-Container-Write metadata ACL
-        cont_headers = {'X-Container-Write':
-                        self.data.test_tenant + ':' + self.data.test_user}
+        tenant_name = self.os_operator.credentials.tenant_name
+        username = self.os_operator.credentials.username
+        cont_headers = {'X-Container-Write': tenant_name + ':' + username}
         resp_meta, body = self.container_client.update_container_metadata(
             self.container_name, metadata=cont_headers,
             metadata_prefix='')
diff --git a/tempest/api/object_storage/test_container_acl_negative.py b/tempest/api/object_storage/test_container_acl_negative.py
index c55bb61..18939f0 100644
--- a/tempest/api/object_storage/test_container_acl_negative.py
+++ b/tempest/api/object_storage/test_container_acl_negative.py
@@ -17,21 +17,25 @@
 from tempest.api.object_storage import base
 from tempest import clients
 from tempest.common.utils import data_utils
+from tempest import config
 from tempest import test
 
+CONF = config.CONF
+
 
 class ObjectACLsNegativeTest(base.BaseObjectTest):
 
     @classmethod
     def setup_credentials(cls):
         super(ObjectACLsNegativeTest, cls).setup_credentials()
-        cls.data.setup_test_user()
-        cls.test_os = clients.Manager(cls.data.test_credentials)
+        cls.os_operator = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.operator_role], force_new=True))
 
     @classmethod
     def resource_setup(cls):
         super(ObjectACLsNegativeTest, cls).resource_setup()
-        cls.test_auth_data = cls.test_os.auth_provider.auth_data
+        cls.test_auth_data = cls.os_operator.auth_provider.auth_data
 
     def setUp(self):
         super(ObjectACLsNegativeTest, self).setUp()
@@ -174,8 +178,10 @@
     def test_write_object_without_write_rights(self):
         # attempt to write object using non-authorized user
         # update X-Container-Read and X-Container-Write metadata ACL
+        tenant_name = self.os_operator.credentials.tenant_name
+        username = self.os_operator.credentials.username
         cont_headers = {'X-Container-Read':
-                        self.data.test_tenant + ':' + self.data.test_user,
+                        tenant_name + ':' + username,
                         'X-Container-Write': ''}
         resp_meta, body = self.container_client.update_container_metadata(
             self.container_name, metadata=cont_headers,
@@ -197,8 +203,10 @@
     def test_delete_object_without_write_rights(self):
         # attempt to delete object using non-authorized user
         # update X-Container-Read and X-Container-Write metadata ACL
+        tenant_name = self.os_operator.credentials.tenant_name
+        username = self.os_operator.credentials.username
         cont_headers = {'X-Container-Read':
-                        self.data.test_tenant + ':' + self.data.test_user,
+                        tenant_name + ':' + username,
                         'X-Container-Write': ''}
         resp_meta, body = self.container_client.update_container_metadata(
             self.container_name, metadata=cont_headers,
diff --git a/tempest/api/object_storage/test_container_sync.py b/tempest/api/object_storage/test_container_sync.py
index 71f1275..ae42da6 100644
--- a/tempest/api/object_storage/test_container_sync.py
+++ b/tempest/api/object_storage/test_container_sync.py
@@ -19,6 +19,7 @@
 import urlparse
 
 from tempest.api.object_storage import base
+from tempest import clients
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
@@ -36,6 +37,18 @@
     clients = {}
 
     @classmethod
+    def setup_credentials(cls):
+        super(ContainerSyncTest, cls).setup_credentials()
+        cls.os_alt = clients.Manager(cls.isolated_creds.get_creds_by_roles(
+            [CONF.object_storage.operator_role], force_new=True))
+
+    @classmethod
+    def setup_clients(cls):
+        super(ContainerSyncTest, cls).setup_clients()
+        cls.object_client_alt = cls.os_alt.object_client
+        cls.container_client_alt = cls.os_alt.container_client
+
+    @classmethod
     def resource_setup(cls):
         super(ContainerSyncTest, cls).resource_setup()
         cls.containers = []
diff --git a/tempest/api/object_storage/test_object_services.py b/tempest/api/object_storage/test_object_services.py
index a4d0377..f9220cf 100644
--- a/tempest/api/object_storage/test_object_services.py
+++ b/tempest/api/object_storage/test_object_services.py
@@ -23,12 +23,17 @@
 import six
 
 from tempest.api.object_storage import base
+from tempest import clients
 from tempest.common import custom_matchers
 from tempest.common.utils import data_utils
+from tempest import config
 from tempest import test
 
+CONF = config.CONF
+
 
 class ObjectTest(base.BaseObjectTest):
+
     @classmethod
     def resource_setup(cls):
         super(ObjectTest, cls).resource_setup()
@@ -1016,6 +1021,19 @@
 
 
 class PublicObjectTest(base.BaseObjectTest):
+
+    @classmethod
+    def setup_credentials(cls):
+        super(PublicObjectTest, cls).setup_credentials()
+        cls.os_alt = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                roles=[CONF.object_storage.operator_role], force_new=True))
+
+    @classmethod
+    def setup_clients(cls):
+        super(PublicObjectTest, cls).setup_clients()
+        cls.identity_client_alt = cls.os_alt.identity_client
+
     def setUp(self):
         super(PublicObjectTest, self).setUp()
         self.container_name = data_utils.rand_name(name='TestContainer')
diff --git a/tempest/api/volume/admin/test_multi_backend.py b/tempest/api/volume/admin/test_multi_backend.py
index 97dd104..2e4b614 100644
--- a/tempest/api/volume/admin/test_multi_backend.py
+++ b/tempest/api/volume/admin/test_multi_backend.py
@@ -70,8 +70,7 @@
 
         params = {self.name_field: vol_name, 'volume_type': type_name}
 
-        self.volume = self.admin_volume_client.create_volume(size=1,
-                                                             **params)
+        self.volume = self.admin_volume_client.create_volume(**params)
         if with_prefix:
             self.volume_id_list_with_prefix.append(self.volume['id'])
         else:
diff --git a/tempest/api/volume/admin/test_snapshots_actions.py b/tempest/api/volume/admin/test_snapshots_actions.py
index 469f13e..4834be1 100644
--- a/tempest/api/volume/admin/test_snapshots_actions.py
+++ b/tempest/api/volume/admin/test_snapshots_actions.py
@@ -34,7 +34,7 @@
         cls.name_field = cls.special_fields['name_field']
         params = {cls.name_field: vol_name}
         cls.volume = \
-            cls.volumes_client.create_volume(size=1, **params)
+            cls.volumes_client.create_volume(**params)
         cls.volumes_client.wait_for_volume_status(cls.volume['id'],
                                                   'available')
 
diff --git a/tempest/api/volume/admin/test_volume_quotas.py b/tempest/api/volume/admin/test_volume_quotas.py
index 27375de..cd91552 100644
--- a/tempest/api/volume/admin/test_volume_quotas.py
+++ b/tempest/api/volume/admin/test_volume_quotas.py
@@ -84,7 +84,7 @@
         quota_usage = self.quotas_client.get_quota_usage(
             self.demo_tenant_id)
 
-        volume = self.create_volume(size=1)
+        volume = self.create_volume()
         self.addCleanup(self.admin_volume_client.delete_volume,
                         volume['id'])
 
diff --git a/tempest/api/volume/admin/test_volume_quotas_negative.py b/tempest/api/volume/admin/test_volume_quotas_negative.py
index 67edd09..98b7143 100644
--- a/tempest/api/volume/admin/test_volume_quotas_negative.py
+++ b/tempest/api/volume/admin/test_volume_quotas_negative.py
@@ -48,8 +48,7 @@
     @test.idempotent_id('bf544854-d62a-47f2-a681-90f7a47d86b6')
     def test_quota_volumes(self):
         self.assertRaises(lib_exc.OverLimit,
-                          self.volumes_client.create_volume,
-                          size=1)
+                          self.volumes_client.create_volume)
 
     @test.attr(type='negative')
     @test.idempotent_id('02bbf63f-6c05-4357-9d98-2926a94064ff')
@@ -73,8 +72,7 @@
             self.demo_tenant_id,
             **new_quota_set)
         self.assertRaises(lib_exc.OverLimit,
-                          self.volumes_client.create_volume,
-                          size=1)
+                          self.volumes_client.create_volume)
 
         new_quota_set = {'gigabytes': 2, 'volumes': 1, 'snapshots': 2}
         self.quotas_client.update_quota_set(
diff --git a/tempest/api/volume/admin/test_volume_types.py b/tempest/api/volume/admin/test_volume_types.py
index 8705f6f..01242f9 100644
--- a/tempest/api/volume/admin/test_volume_types.py
+++ b/tempest/api/volume/admin/test_volume_types.py
@@ -60,7 +60,7 @@
                   'volume_type': volume_types[0]['id']}
 
         # Create volume
-        volume = self.volumes_client.create_volume(size=1, **params)
+        volume = self.volumes_client.create_volume(**params)
         self.addCleanup(self._delete_volume, volume['id'])
         self.assertEqual(volume_types[0]['name'], volume["volume_type"])
         self.assertEqual(volume[self.name_field], vol_name,
diff --git a/tempest/api/volume/admin/test_volume_types_negative.py b/tempest/api/volume/admin/test_volume_types_negative.py
index eb46a54..d2bf777 100644
--- a/tempest/api/volume/admin/test_volume_types_negative.py
+++ b/tempest/api/volume/admin/test_volume_types_negative.py
@@ -31,8 +31,7 @@
         params = {self.name_field: str(uuid.uuid4()),
                   'volume_type': str(uuid.uuid4())}
         self.assertRaises(lib_exc.NotFound,
-                          self.volumes_client.create_volume, size=1,
-                          **params)
+                          self.volumes_client.create_volume, **params)
 
     @test.attr(type='gate')
     @test.idempotent_id('878b4e57-faa2-4659-b0d1-ce740a06ae81')
diff --git a/tempest/api/volume/admin/test_volumes_actions.py b/tempest/api/volume/admin/test_volumes_actions.py
index b0013e6..dc96839 100644
--- a/tempest/api/volume/admin/test_volumes_actions.py
+++ b/tempest/api/volume/admin/test_volumes_actions.py
@@ -34,8 +34,7 @@
         cls.name_field = cls.special_fields['name_field']
         params = {cls.name_field: vol_name}
 
-        cls.volume = cls.client.create_volume(size=1,
-                                              **params)
+        cls.volume = cls.client.create_volume(**params)
         cls.client.wait_for_volume_status(cls.volume['id'], 'available')
 
     @classmethod
@@ -61,8 +60,7 @@
         # Create a temp volume for force delete tests
         vol_name = utils.rand_name('Volume')
         params = {self.name_field: vol_name}
-        temp_volume = self.client.create_volume(size=1,
-                                                **params)
+        temp_volume = self.client.create_volume(**params)
         self.client.wait_for_volume_status(temp_volume['id'], 'available')
 
         return temp_volume
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index c672607..4f94f34 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -106,7 +106,7 @@
         super(BaseVolumeTest, cls).resource_cleanup()
 
     @classmethod
-    def create_volume(cls, size=1, **kwargs):
+    def create_volume(cls, size=None, **kwargs):
         """Wrapper utility that returns a test volume."""
         name = data_utils.rand_name('Volume')
 
diff --git a/tempest/api/volume/test_volumes_get.py b/tempest/api/volume/test_volumes_get.py
index 007b0db..d03bd8d 100644
--- a/tempest/api/volume/test_volumes_get.py
+++ b/tempest/api/volume/test_volumes_get.py
@@ -108,7 +108,7 @@
         new_v_desc = data_utils.rand_name('@#$%^* description')
         params = {self.descrip_field: new_v_desc,
                   'availability_zone': volume['availability_zone']}
-        new_volume = self.client.create_volume(size=1, **params)
+        new_volume = self.client.create_volume(**params)
         self.assertIn('id', new_volume)
         self.addCleanup(self._delete_volume, new_volume['id'])
         self.client.wait_for_volume_status(new_volume['id'], 'available')
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 3c1cce3..b6cdd6b 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -181,7 +181,6 @@
         snapshot = self.create_snapshot(self.volume_origin['id'])
         # NOTE(gfidente): size is required also when passing snapshot_id
         volume = self.volumes_client.create_volume(
-            size=1,
             snapshot_id=snapshot['id'])
         self.volumes_client.wait_for_volume_status(volume['id'], 'available')
         self.volumes_client.delete_volume(volume['id'])
diff --git a/tempest/cli/__init__.py b/tempest/cli/__init__.py
index 76aafd8..6733204 100644
--- a/tempest/cli/__init__.py
+++ b/tempest/cli/__init__.py
@@ -68,6 +68,14 @@
 
 
 class ClientTestBase(test.BaseTestCase):
+
+    @classmethod
+    def skip_checks(cls):
+        super(ClientTestBase, cls).skip_checks()
+        if not CONF.identity_feature_enabled.api_v2:
+            raise cls.skipException("CLI clients rely on identity v2 API, "
+                                    "which is configured as not available")
+
     @classmethod
     def resource_setup(cls):
         if not CONF.cli.enabled:
diff --git a/tempest/cli/simple_read_only/identity/__init__.py b/tempest/cli/simple_read_only/identity/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/tempest/cli/simple_read_only/identity/__init__.py
+++ /dev/null
diff --git a/tempest/cli/simple_read_only/identity/test_keystone.py b/tempest/cli/simple_read_only/identity/test_keystone.py
deleted file mode 100644
index 10a26d5..0000000
--- a/tempest/cli/simple_read_only/identity/test_keystone.py
+++ /dev/null
@@ -1,155 +0,0 @@
-# Copyright 2013 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.
-
-import re
-
-from tempest_lib import exceptions
-
-from tempest import cli
-from tempest import config
-from tempest.openstack.common import log as logging
-from tempest import test
-
-CONF = config.CONF
-
-
-LOG = logging.getLogger(__name__)
-
-
-class SimpleReadOnlyKeystoneClientTest(cli.ClientTestBase):
-    """Basic, read-only tests for Keystone CLI client.
-
-    Checks return values and output of read-only commands.
-    These tests do not presume any content, nor do they create
-    their own. They only verify the structure of output if present.
-    """
-
-    def keystone(self, *args, **kwargs):
-        return self.clients.keystone(*args, **kwargs)
-
-    @test.idempotent_id('19c3ae95-3c19-4bba-8ba3-48ad19939b71')
-    def test_admin_fake_action(self):
-        self.assertRaises(exceptions.CommandFailed,
-                          self.keystone,
-                          'this-does-not-exist')
-
-    @test.idempotent_id('a1100917-c7c5-4887-a4da-f7d7f13194f5')
-    def test_admin_catalog_list(self):
-        out = self.keystone('catalog')
-        catalog = self.parser.details_multiple(out, with_label=True)
-        for svc in catalog:
-            if svc.get('__label'):
-                self.assertTrue(svc['__label'].startswith('Service:'),
-                                msg=('Invalid beginning of service block: '
-                                     '%s' % svc['__label']))
-            # check that region and publicURL exists. One might also
-            # check for adminURL and internalURL. id seems to be optional
-            # and is missing in the catalog backend
-            self.assertIn('publicURL', svc.keys())
-            self.assertIn('region', svc.keys())
-
-    @test.idempotent_id('35c73506-eab6-4abc-956e-42da90aba8ec')
-    def test_admin_endpoint_list(self):
-        out = self.keystone('endpoint-list')
-        endpoints = self.parser.listing(out)
-        self.assertTableStruct(endpoints, [
-            'id', 'region', 'publicurl', 'internalurl',
-            'adminurl', 'service_id'])
-
-    @test.idempotent_id('f17cb155-bd16-4f32-9956-1b073752fc07')
-    def test_admin_endpoint_service_match(self):
-        endpoints = self.parser.listing(self.keystone('endpoint-list'))
-        services = self.parser.listing(self.keystone('service-list'))
-        svc_by_id = {}
-        for svc in services:
-            svc_by_id[svc['id']] = svc
-        for endpoint in endpoints:
-            self.assertIn(endpoint['service_id'], svc_by_id)
-
-    @test.idempotent_id('be7176f2-9c34-4d84-bb7d-b4bc85d06a33')
-    def test_admin_role_list(self):
-        roles = self.parser.listing(self.keystone('role-list'))
-        self.assertTableStruct(roles, ['id', 'name'])
-
-    @test.idempotent_id('96a4de8d-aa9e-4ca5-89f0-985809eccd66')
-    def test_admin_service_list(self):
-        services = self.parser.listing(self.keystone('service-list'))
-        self.assertTableStruct(services, ['id', 'name', 'type', 'description'])
-
-    @test.idempotent_id('edb45480-0f7b-49eb-8f95-7562cbba96da')
-    def test_admin_tenant_list(self):
-        tenants = self.parser.listing(self.keystone('tenant-list'))
-        self.assertTableStruct(tenants, ['id', 'name', 'enabled'])
-
-    @test.idempotent_id('25a2753d-6bd1-40c0-addc-32864b00cb2d')
-    def test_admin_user_list(self):
-        users = self.parser.listing(self.keystone('user-list'))
-        self.assertTableStruct(users, [
-            'id', 'name', 'enabled', 'email'])
-
-    @test.idempotent_id('f92bf8d4-b27b-47c9-8450-e27c57758de9')
-    def test_admin_user_role_list(self):
-        user_roles = self.parser.listing(self.keystone('user-role-list'))
-        self.assertTableStruct(user_roles, [
-            'id', 'name', 'user_id', 'tenant_id'])
-
-    @test.idempotent_id('14a2687b-3ce1-404c-9f78-a0e28e2f8f7b')
-    def test_admin_discover(self):
-        discovered = self.keystone('discover')
-        self.assertIn('Keystone found at http', discovered)
-        self.assertIn('supports version', discovered)
-
-    @test.idempotent_id('9a567c8c-3787-4e5f-9c30-bed55f2b75c0')
-    def test_admin_help(self):
-        help_text = self.keystone('help')
-        lines = help_text.split('\n')
-        self.assertFirstLineStartsWith(lines, 'usage: keystone')
-
-        commands = []
-        cmds_start = lines.index('Positional arguments:')
-        cmds_end = lines.index('Optional arguments:')
-        command_pattern = re.compile('^ {4}([a-z0-9\-\_]+)')
-        for line in lines[cmds_start:cmds_end]:
-            match = command_pattern.match(line)
-            if match:
-                commands.append(match.group(1))
-        commands = set(commands)
-        wanted_commands = set(('catalog', 'endpoint-list', 'help',
-                               'token-get', 'discover', 'bootstrap'))
-        self.assertFalse(wanted_commands - commands)
-
-    @test.idempotent_id('a7b9e1fe-db31-4846-82c5-52a7aa9863c3')
-    def test_admin_bashcompletion(self):
-        self.keystone('bash-completion')
-
-    @test.idempotent_id('5328c681-df8b-4874-a65c-8fa278f0af8f')
-    def test_admin_ec2_credentials_list(self):
-        creds = self.keystone('ec2-credentials-list')
-        creds = self.parser.listing(creds)
-        self.assertTableStruct(creds, ['tenant', 'access', 'secret'])
-
-    # Optional arguments:
-
-    @test.idempotent_id('af95e809-ce95-4505-8627-170d803b1d13')
-    def test_admin_version(self):
-        self.keystone('', flags='--version')
-
-    @test.idempotent_id('9e26521f-7bfa-4d8e-9d61-fd364f0c20c0')
-    def test_admin_debug_list(self):
-        self.keystone('catalog', flags='--debug')
-
-    @test.idempotent_id('097b3a52-725f-4df7-84b6-277a2b6f6e38')
-    def test_admin_timeout(self):
-        self.keystone('catalog', flags='--timeout %d' % CONF.cli.timeout)
diff --git a/tempest/clients.py b/tempest/clients.py
index 63bc117..e5f41eb 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -301,7 +301,8 @@
             'build_timeout': CONF.volume.build_timeout
         })
         self.volumes_extensions_client = VolumesExtensionsClientJSON(
-            self.auth_provider, **params_volume)
+            self.auth_provider, default_volume_size=CONF.volume.volume_size,
+            **params_volume)
 
     def _set_database_clients(self):
         self.database_flavors_client = DatabaseFlavorsClientJSON(
diff --git a/tempest/common/accounts.py b/tempest/common/accounts.py
index e21a85e..89de69b 100644
--- a/tempest/common/accounts.py
+++ b/tempest/common/accounts.py
@@ -49,12 +49,46 @@
         self.isolated_creds = {}
 
     @classmethod
+    def _append_role(cls, role, account_hash, hash_dict):
+        if role in hash_dict['roles']:
+            hash_dict['roles'][role].append(account_hash)
+        else:
+            hash_dict['roles'][role] = [account_hash]
+        return hash_dict
+
+    @classmethod
     def get_hash_dict(cls, accounts):
-        hash_dict = {}
+        hash_dict = {'roles': {}, 'creds': {}}
+        # Loop over the accounts read from the yaml file
         for account in accounts:
+            roles = []
+            types = []
+            if 'roles' in account:
+                roles = account.pop('roles')
+            if 'types' in account:
+                types = account.pop('types')
             temp_hash = hashlib.md5()
             temp_hash.update(str(account))
-            hash_dict[temp_hash.hexdigest()] = account
+            temp_hash_key = temp_hash.hexdigest()
+            hash_dict['creds'][temp_hash_key] = account
+            for role in roles:
+                hash_dict = cls._append_role(role, temp_hash_key,
+                                             hash_dict)
+            # If types are set for the account append the matching role
+            # subdict with the hash
+            for type in types:
+                if type == 'admin':
+                    hash_dict = cls._append_role(CONF.identity.admin_role,
+                                                 temp_hash_key, hash_dict)
+                elif type == 'operator':
+                    hash_dict = cls._append_role(
+                        CONF.object_storage.operator_role, temp_hash_key,
+                        hash_dict)
+                elif type == 'reseller_admin':
+                    hash_dict = cls._append_role(
+                        CONF.object_storage.reseller_admin_role,
+                        temp_hash_key,
+                        hash_dict)
         return hash_dict
 
     def is_multi_user(self):
@@ -63,7 +97,7 @@
             raise exceptions.InvalidConfiguration(
                 "Account file %s doesn't exist" % CONF.auth.test_accounts_file)
         else:
-            return len(self.hash_dict) > 1
+            return len(self.hash_dict['creds']) > 1
 
     def is_multi_tenant(self):
         return self.is_multi_user()
@@ -78,6 +112,8 @@
 
     @lockutils.synchronized('test_accounts_io', external=True)
     def _get_free_hash(self, hashes):
+        # Cast as a list because in some edge cases a set will be passed in
+        hashes = list(hashes)
         if not os.path.isdir(self.accounts_dir):
             os.mkdir(self.accounts_dir)
             # Create File from first hash (since none are in use)
@@ -97,12 +133,46 @@
                'the credentials for this allocation request' % ','.join(names))
         raise exceptions.InvalidConfiguration(msg)
 
-    def _get_creds(self):
+    def _get_match_hash_list(self, roles=None):
+        hashes = []
+        if roles:
+            # Loop over all the creds for each role in the subdict and generate
+            # a list of cred lists for each role
+            for role in roles:
+                temp_hashes = self.hash_dict['roles'].get(role, None)
+                if not temp_hashes:
+                    raise exceptions.InvalidConfiguration(
+                        "No credentials with role: %s specified in the "
+                        "accounts ""file" % role)
+                hashes.append(temp_hashes)
+            # Take the list of lists and do a boolean and between each list to
+            # find the creds which fall under all the specified roles
+            temp_list = set(hashes[0])
+            for hash_list in hashes[1:]:
+                temp_list = temp_list & set(hash_list)
+            hashes = temp_list
+        else:
+            hashes = self.hash_dict['creds'].keys()
+        # NOTE(mtreinish): admin is a special case because of the increased
+        # privlege set which could potentially cause issues on tests where that
+        # is not expected. So unless the admin role isn't specified do not
+        # allocate admin.
+        admin_hashes = self.hash_dict['roles'].get(CONF.identity.admin_role,
+                                                   None)
+        if ((not roles or CONF.identity.admin_role not in roles) and
+                admin_hashes):
+            useable_hashes = [x for x in hashes if x not in admin_hashes]
+        else:
+            useable_hashes = hashes
+        return useable_hashes
+
+    def _get_creds(self, roles=None):
         if self.use_default_creds:
             raise exceptions.InvalidConfiguration(
                 "Account file %s doesn't exist" % CONF.auth.test_accounts_file)
-        free_hash = self._get_free_hash(self.hash_dict.keys())
-        return self.hash_dict[free_hash]
+        useable_hashes = self._get_match_hash_list(roles)
+        free_hash = self._get_free_hash(useable_hashes)
+        return self.hash_dict['creds'][free_hash]
 
     @lockutils.synchronized('test_accounts_io', external=True)
     def remove_hash(self, hash_string):
@@ -116,10 +186,10 @@
                 os.rmdir(self.accounts_dir)
 
     def get_hash(self, creds):
-        for _hash in self.hash_dict:
-            # Comparing on the attributes that were read from the YAML
-            if all([getattr(creds, k) == self.hash_dict[_hash][k] for k in
-                    creds.get_init_attributes()]):
+        for _hash in self.hash_dict['creds']:
+            # Comparing on the attributes that are expected in the YAML
+            if all([getattr(creds, k) == self.hash_dict['creds'][_hash][k] for
+                   k in creds.get_init_attributes()]):
                 return _hash
         raise AttributeError('Invalid credentials %s' % creds)
 
@@ -143,14 +213,33 @@
         self.isolated_creds['alt'] = alt_credential
         return alt_credential
 
+    def get_creds_by_roles(self, roles, force_new=False):
+        roles = list(set(roles))
+        exist_creds = self.isolated_creds.get(str(roles), None)
+        # The force kwarg is used to allocate an additional set of creds with
+        # the same role list. The index used for the previously allocation
+        # in the isolated_creds dict will be moved.
+        if exist_creds and not force_new:
+            return exist_creds
+        elif exist_creds and force_new:
+            new_index = str(roles) + '-' + str(len(self.isolated_creds))
+            self.isolated_creds[new_index] = exist_creds
+        creds = self._get_creds(roles=roles)
+        role_credential = cred_provider.get_credentials(**creds)
+        self.isolated_creds[str(roles)] = role_credential
+        return role_credential
+
     def clear_isolated_creds(self):
         for creds in self.isolated_creds.values():
             self.remove_credentials(creds)
 
     def get_admin_creds(self):
-        msg = ('If admin credentials are available tenant_isolation should be'
-               ' used instead')
-        raise NotImplementedError(msg)
+        return self.get_creds_by_roles([CONF.identity.admin_role])
+
+    def admin_available(self):
+        if not self.hash_dict['roles'].get(CONF.identity.admin_role):
+            return False
+        return True
 
 
 class NotLockingAccounts(Accounts):
@@ -173,7 +262,7 @@
                 raise exceptions.InvalidConfiguration(msg)
         else:
             # TODO(andreaf) Add a uniqueness check here
-            return len(self.hash_dict) > 1
+            return len(self.hash_dict['creds']) > 1
 
     def is_multi_user(self):
         return self._unique_creds('username')
@@ -181,16 +270,17 @@
     def is_multi_tenant(self):
         return self._unique_creds('tenant_id')
 
-    def get_creds(self, id):
+    def get_creds(self, id, roles=None):
         try:
+            hashes = self._get_match_hash_list(roles)
             # No need to sort the dict as within the same python process
             # the HASH seed won't change, so subsequent calls to keys()
             # will return the same result
-            _hash = self.hash_dict.keys()[id]
+            _hash = hashes[id]
         except IndexError:
             msg = 'Insufficient number of users provided'
             raise exceptions.InvalidConfiguration(msg)
-        return self.hash_dict[_hash]
+        return self.hash_dict['creds'][_hash]
 
     def get_primary_creds(self):
         if self.isolated_creds.get('primary'):
@@ -220,5 +310,35 @@
         self.isolated_creds = {}
 
     def get_admin_creds(self):
-        return cred_provider.get_configured_credentials(
-            "identity_admin", fill_in=False)
+        if not self.use_default_creds:
+            return self.get_creds_by_roles([CONF.identity.admin_role])
+        else:
+            creds = cred_provider.get_configured_credentials(
+                "identity_admin", fill_in=False)
+            self.isolated_creds['admin'] = creds
+            return creds
+
+    def get_creds_by_roles(self, roles, force_new=False):
+        roles = list(set(roles))
+        exist_creds = self.isolated_creds.get(str(roles), None)
+        index = 0
+        if exist_creds and not force_new:
+            return exist_creds
+        elif exist_creds and force_new:
+            new_index = str(roles) + '-' + str(len(self.isolated_creds))
+            self.isolated_creds[new_index] = exist_creds
+            # Figure out how many existing creds for this roles set are present
+            # use this as the index the returning hash list to ensure separate
+            # creds are returned with force_new being True
+            for creds_names in self.isolated_creds:
+                if str(roles) in creds_names:
+                    index = index + 1
+        if not self.use_default_creds:
+            creds = self.get_creds(index, roles=roles)
+            role_credential = cred_provider.get_credentials(**creds)
+            self.isolated_creds[str(roles)] = role_credential
+        else:
+            msg = "Default credentials can not be used with specifying "\
+                  "credentials by roles"
+            raise exceptions.InvalidConfiguration(msg)
+        return role_credential
diff --git a/tempest/common/cred_provider.py b/tempest/common/cred_provider.py
index 033410e..c22dc1f 100644
--- a/tempest/common/cred_provider.py
+++ b/tempest/common/cred_provider.py
@@ -113,3 +113,7 @@
     @abc.abstractmethod
     def is_multi_tenant(self):
         return
+
+    @abc.abstractmethod
+    def get_creds_by_roles(self, roles, force_new=False):
+        return
diff --git a/tempest/common/credentials.py b/tempest/common/credentials.py
index 40761c8..3794b66 100644
--- a/tempest/common/credentials.py
+++ b/tempest/common/credentials.py
@@ -11,6 +11,8 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
+import os
+
 from tempest.common import accounts
 from tempest.common import cred_provider
 from tempest.common import isolated_creds
@@ -46,24 +48,17 @@
 # creds area vailable.
 def is_admin_available():
     is_admin = True
-    # In the case of a pre-provisioned account, if even if creds were
-    # configured, the admin credentials won't be available
-    if (CONF.auth.locking_credentials_provider and
-        not CONF.auth.allow_tenant_isolation):
-        is_admin = False
+    # If tenant isolation is enabled admin will be available
+    if CONF.auth.allow_tenant_isolation:
+        return is_admin
+    # Check whether test accounts file has the admin specified or not
+    elif os.path.isfile(CONF.auth.test_accounts_file):
+        check_accounts = accounts.Accounts(name='check_admin')
+        if not check_accounts.admin_available():
+            is_admin = False
     else:
         try:
             cred_provider.get_configured_credentials('identity_admin')
-        # NOTE(mtreinish) This should never be caught because of the if above.
-        # NotImplementedError is only raised if admin credentials are requested
-        # and the locking test accounts cred provider is being used.
-        except NotImplementedError:
-            is_admin = False
-        # NOTE(mtreinish): This will be raised by the non-locking accounts
-        # provider if there aren't admin credentials provided in the config
-        # file. This exception originates from the auth call to get configured
-        # credentials
         except exceptions.InvalidConfiguration:
             is_admin = False
-
     return is_admin
diff --git a/tempest/common/isolated_creds.py b/tempest/common/isolated_creds.py
index 3eed689..b36dd46 100644
--- a/tempest/common/isolated_creds.py
+++ b/tempest/common/isolated_creds.py
@@ -79,8 +79,15 @@
         except StopIteration:
             msg = 'No "%s" role found' % role_name
             raise lib_exc.NotFound(msg)
-        self.identity_admin_client.assign_user_role(tenant['id'], user['id'],
-                                                    role['id'])
+        try:
+            self.identity_admin_client.assign_user_role(tenant['id'],
+                                                        user['id'],
+                                                        role['id'])
+        except lib_exc.Conflict:
+            LOG.warning('Trying to add %s for user %s in tenant %s but they '
+                        ' were already granted that role' % (role_name,
+                                                             user['name'],
+                                                             tenant['name']))
 
     def _delete_user(self, user):
         self.identity_admin_client.delete_user(user)
@@ -90,7 +97,7 @@
             self._cleanup_default_secgroup(tenant)
         self.identity_admin_client.delete_tenant(tenant)
 
-    def _create_creds(self, suffix="", admin=False):
+    def _create_creds(self, suffix="", admin=False, roles=None):
         """Create random credentials under the following schema.
 
         If the name contains a '.' is the full class path of something, and
@@ -114,15 +121,15 @@
         email = data_utils.rand_name(root) + suffix + "@example.com"
         user = self._create_user(username, self.password,
                                  tenant, email)
-        if CONF.service_available.swift:
-            # NOTE(andrey-mp): user needs this role to create containers
-            # in swift
-            swift_operator_role = CONF.object_storage.operator_role
-            self._assign_user_role(tenant, user, swift_operator_role)
         if admin:
             self._assign_user_role(tenant, user, CONF.identity.admin_role)
-        for role in CONF.auth.tempest_roles:
-            self._assign_user_role(tenant, user, role)
+        # Add roles specified in config file
+        for conf_role in CONF.auth.tempest_roles:
+            self._assign_user_role(tenant, user, conf_role)
+        # Add roles requested by caller
+        if roles:
+            for role in roles:
+                self._assign_user_role(tenant, user, role)
         return self._get_credentials(user, tenant)
 
     def _get_credentials(self, user, tenant):
@@ -247,12 +254,15 @@
         return self.isolated_net_resources.get('alt')[2]
 
     def get_credentials(self, credential_type):
-        if self.isolated_creds.get(credential_type):
-            credentials = self.isolated_creds[credential_type]
+        if self.isolated_creds.get(str(credential_type)):
+            credentials = self.isolated_creds[str(credential_type)]
         else:
-            is_admin = (credential_type == 'admin')
-            credentials = self._create_creds(admin=is_admin)
-            self.isolated_creds[credential_type] = credentials
+            if credential_type in ['primary', 'alt', 'admin']:
+                is_admin = (credential_type == 'admin')
+                credentials = self._create_creds(admin=is_admin)
+            else:
+                credentials = self._create_creds(roles=credential_type)
+            self.isolated_creds[str(credential_type)] = credentials
             # Maintained until tests are ported
             LOG.info("Acquired isolated creds:\n credentials: %s"
                      % credentials)
@@ -260,7 +270,7 @@
                 not CONF.baremetal.driver_enabled):
                 network, subnet, router = self._create_network_resources(
                     credentials.tenant_id)
-                self.isolated_net_resources[credential_type] = (
+                self.isolated_net_resources[str(credential_type)] = (
                     network, subnet, router,)
                 LOG.info("Created isolated network resources for : \n"
                          + " credentials: %s" % credentials)
@@ -275,6 +285,26 @@
     def get_alt_creds(self):
         return self.get_credentials('alt')
 
+    def get_creds_by_roles(self, roles, force_new=False):
+        roles = list(set(roles))
+        # The roles list as a str will become the index as the dict key for
+        # the created credentials set in the isolated_creds dict.
+        exist_creds = self.isolated_creds.get(str(roles))
+        # If force_new flag is True 2 cred sets with the same roles are needed
+        # handle this by creating a separate index for old one to store it
+        # separately for cleanup
+        if exist_creds and force_new:
+            new_index = str(roles) + '-' + str(len(self.isolated_creds))
+            self.isolated_creds[new_index] = exist_creds
+            del self.isolated_creds[str(roles)]
+            # Handle isolated neutron resouces if they exist too
+            if CONF.service_available.neutron:
+                exist_net = self.isolated_net_resources.get(str(roles))
+                if exist_net:
+                    self.isolated_net_resources[new_index] = exist_net
+                    del self.isolated_net_resources[str(roles)]
+        return self.get_credentials(roles)
+
     def _clear_isolated_router(self, router_id, router_name):
         net_client = self.network_admin_client
         try:
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 968c8ca..7f0582a 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -207,7 +207,7 @@
         self.assertEqual(server['name'], name)
         return server
 
-    def create_volume(self, size=1, name=None, snapshot_id=None,
+    def create_volume(self, size=None, name=None, snapshot_id=None,
                       imageRef=None, volume_type=None, wait_on_delete=True):
         if name is None:
             name = data_utils.rand_name(self.__class__.__name__)
@@ -1372,10 +1372,13 @@
             raise cls.skipException(skip_msg)
         cls.set_network_resources()
         super(SwiftScenarioTest, cls).resource_setup()
+        cls.os_operator = clients.Manager(
+            cls.isolated_creds.get_creds_by_roles(
+                [CONF.object_storage.operator_role]))
         # Clients for Swift
-        cls.account_client = cls.manager.account_client
-        cls.container_client = cls.manager.container_client
-        cls.object_client = cls.manager.object_client
+        cls.account_client = cls.os_operator.account_client
+        cls.container_client = cls.os_operator.container_client
+        cls.object_client = cls.os_operator.object_client
 
     def get_swift_stat(self):
         """get swift status for our user account."""
diff --git a/tempest/scenario/orchestration/__init__.py b/tempest/scenario/orchestration/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/tempest/scenario/orchestration/__init__.py
+++ /dev/null
diff --git a/tempest/scenario/orchestration/cfn_init_signal.yaml b/tempest/scenario/orchestration/cfn_init_signal.yaml
deleted file mode 100644
index c95aabf..0000000
--- a/tempest/scenario/orchestration/cfn_init_signal.yaml
+++ /dev/null
@@ -1,82 +0,0 @@
-HeatTemplateFormatVersion: '2012-12-12'
-Description: |
-  Template which uses a wait condition to confirm that a minimal
-  cfn-init and cfn-signal has worked
-Parameters:
-  key_name:
-    Type: String
-  flavor:
-    Type: String
-  image:
-    Type: String
-  network:
-    Type: String
-  timeout:
-    Type: Number
-Resources:
-  CfnUser:
-    Type: AWS::IAM::User
-  SmokeSecurityGroup:
-    Type: AWS::EC2::SecurityGroup
-    Properties:
-      GroupDescription: Enable only ping and SSH access
-      SecurityGroupIngress:
-      - {CidrIp: 0.0.0.0/0, FromPort: '-1', IpProtocol: icmp, ToPort: '-1'}
-      - {CidrIp: 0.0.0.0/0, FromPort: '22', IpProtocol: tcp, ToPort: '22'}
-  SmokeKeys:
-    Type: AWS::IAM::AccessKey
-    Properties:
-      UserName: {Ref: CfnUser}
-  SmokeServer:
-    Type: OS::Nova::Server
-    Metadata:
-      AWS::CloudFormation::Init:
-        config:
-          files:
-            /tmp/smoke-status:
-              content: smoke test complete
-            /etc/cfn/cfn-credentials:
-              content:
-                Fn::Replace:
-                - SmokeKeys: {Ref: SmokeKeys}
-                  SecretAccessKey:
-                    'Fn::GetAtt': [SmokeKeys, SecretAccessKey]
-                - |
-                  AWSAccessKeyId=SmokeKeys
-                  AWSSecretKey=SecretAccessKey
-              mode: '000400'
-              owner: root
-              group: root
-    Properties:
-      image: {Ref: image}
-      flavor: {Ref: flavor}
-      key_name: {Ref: key_name}
-      security_groups:
-      - {Ref: SmokeSecurityGroup}
-      networks:
-      - uuid: {Ref: network}
-      user_data:
-        Fn::Replace:
-        - WaitHandle: {Ref: WaitHandle}
-        - |
-          #!/bin/bash -v
-          /opt/aws/bin/cfn-init
-          /opt/aws/bin/cfn-signal -e 0 --data "`cat /tmp/smoke-status`" \
-              --id smoke_status "WaitHandle"
-  WaitHandle:
-    Type: AWS::CloudFormation::WaitConditionHandle
-  WaitCondition:
-    Type: AWS::CloudFormation::WaitCondition
-    DependsOn: SmokeServer
-    Properties:
-      Handle: {Ref: WaitHandle}
-      Timeout: {Ref: timeout}
-Outputs:
-  WaitConditionStatus:
-    Description: Contents of /tmp/smoke-status on SmokeServer
-    Value:
-      Fn::GetAtt: [WaitCondition, Data]
-  SmokeServerIp:
-    Description: IP address of server
-    Value:
-      Fn::GetAtt: [SmokeServer, first_address]
diff --git a/tempest/scenario/orchestration/test_server_cfn_init.py b/tempest/scenario/orchestration/test_server_cfn_init.py
deleted file mode 100644
index 53f7843..0000000
--- a/tempest/scenario/orchestration/test_server_cfn_init.py
+++ /dev/null
@@ -1,134 +0,0 @@
-#    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 json
-
-from tempest_lib import decorators
-
-from tempest import config
-from tempest import exceptions
-from tempest.openstack.common import log as logging
-from tempest.scenario import manager
-from tempest import test
-
-CONF = config.CONF
-LOG = logging.getLogger(__name__)
-
-
-class CfnInitScenarioTest(manager.OrchestrationScenarioTest):
-
-    def setUp(self):
-        super(CfnInitScenarioTest, self).setUp()
-        if not CONF.orchestration.image_ref:
-            raise self.skipException("No image available to test")
-        self.client = self.orchestration_client
-        self.template_name = 'cfn_init_signal.yaml'
-
-    def assign_keypair(self):
-        self.stack_name = self._stack_rand_name()
-        if CONF.orchestration.keypair_name:
-            self.keypair = None
-            self.keypair_name = CONF.orchestration.keypair_name
-        else:
-            self.keypair = self.create_keypair()
-            self.keypair_name = self.keypair['name']
-
-    def launch_stack(self):
-        net = self._get_default_network()
-        self.parameters = {
-            'key_name': self.keypair_name,
-            'flavor': CONF.orchestration.instance_type,
-            'image': CONF.orchestration.image_ref,
-            'timeout': CONF.orchestration.build_timeout,
-            'network': net['id'],
-        }
-
-        # create the stack
-        self.template = self._load_template(__file__, self.template_name)
-        stack = self.client.create_stack(
-            name=self.stack_name,
-            template=self.template,
-            parameters=self.parameters)
-        stack = stack['stack']
-
-        self.stack = self.client.get_stack(stack['id'])
-        self.stack_identifier = '%s/%s' % (self.stack_name, self.stack['id'])
-        self.addCleanup(self.delete_wrapper,
-                        self.orchestration_client.delete_stack,
-                        self.stack_identifier)
-
-    def check_stack(self):
-        sid = self.stack_identifier
-        self.client.wait_for_resource_status(
-            sid, 'WaitHandle', 'CREATE_COMPLETE')
-        self.client.wait_for_resource_status(
-            sid, 'SmokeSecurityGroup', 'CREATE_COMPLETE')
-        self.client.wait_for_resource_status(
-            sid, 'SmokeKeys', 'CREATE_COMPLETE')
-        self.client.wait_for_resource_status(
-            sid, 'CfnUser', 'CREATE_COMPLETE')
-        self.client.wait_for_resource_status(
-            sid, 'SmokeServer', 'CREATE_COMPLETE')
-
-        server_resource = self.client.get_resource(sid, 'SmokeServer')
-        server_id = server_resource['physical_resource_id']
-        server = self.servers_client.get_server(server_id)
-        server_ip =\
-            server['addresses'][CONF.compute.network_for_ssh][0]['addr']
-
-        if not self.ping_ip_address(
-            server_ip, ping_timeout=CONF.orchestration.build_timeout):
-            self._log_console_output(servers=[server])
-            self.fail(
-                "(CfnInitScenarioTest:test_server_cfn_init) Timed out waiting "
-                "for %s to become reachable" % server_ip)
-
-        try:
-            self.client.wait_for_resource_status(
-                sid, 'WaitCondition', 'CREATE_COMPLETE')
-        except (exceptions.StackResourceBuildErrorException,
-                exceptions.TimeoutException) as e:
-            raise e
-        finally:
-            # attempt to log the server console regardless of WaitCondition
-            # going to complete. This allows successful and failed cloud-init
-            # logs to be compared
-            self._log_console_output(servers=[server])
-
-        self.client.wait_for_stack_status(sid, 'CREATE_COMPLETE')
-
-        stack = self.client.get_stack(sid)
-
-        # This is an assert of great significance, as it means the following
-        # has happened:
-        # - cfn-init read the provided metadata and wrote out a file
-        # - a user was created and credentials written to the server
-        # - a cfn-signal was built which was signed with provided credentials
-        # - the wait condition was fulfilled and the stack has changed state
-        wait_status = json.loads(
-            self._stack_output(stack, 'WaitConditionStatus'))
-        self.assertEqual('smoke test complete', wait_status['smoke_status'])
-
-        if self.keypair:
-            # Check that the user can authenticate with the generated
-            # keypair
-            self.get_remote_client(server_ip, username='ec2-user',
-                                   log_console_of_servers=[server])
-
-    @test.attr(type='slow')
-    @decorators.skip_because(bug='1374175')
-    @test.idempotent_id('2be9be1f-8106-4ee2-a7ba-444c7557db2f')
-    @test.services('orchestration', 'compute')
-    def test_server_cfn_init(self):
-        self.assign_keypair()
-        self.launch_stack()
-        self.check_stack()
diff --git a/tempest/scenario/test_load_balancer_basic.py b/tempest/scenario/test_load_balancer_basic.py
index 6f6036f..2dfabe3 100644
--- a/tempest/scenario/test_load_balancer_basic.py
+++ b/tempest/scenario/test_load_balancer_basic.py
@@ -262,6 +262,8 @@
                                               port_id=port_id)
         self.floating_ips.setdefault(vip.id, [])
         self.floating_ips[vip.id].append(floating_ip)
+        # Check for floating ip status before you check load-balancer
+        self.check_floating_ip_status(floating_ip, "ACTIVE")
 
     def _create_load_balancer(self):
         self._create_pool()
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index 6e82a41..19a8716 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -84,10 +84,11 @@
             should_connect=should_connect,
             servers_for_debug=[self.server])
         floating_ip = self.floating_ip.floating_ip_address
+        # Check FloatingIP status before checking the connectivity
+        self.check_floating_ip_status(self.floating_ip, 'ACTIVE')
         self.check_public_network_connectivity(floating_ip, username,
                                                private_key, should_connect,
                                                servers=[self.server])
-        self.check_floating_ip_status(self.floating_ip, 'ACTIVE')
 
     def _wait_server_status_and_check_network_connectivity(self):
         self.servers_client.wait_for_server_status(self.server['id'], 'ACTIVE')
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index 4199b2c..81bec51 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -190,12 +190,13 @@
         if should_connect:
             private_key = self._get_server_key(server)
             floatingip_status = 'ACTIVE'
+        # Check FloatingIP Status before initiating a connection
+        if should_check_floating_ip_status:
+            self.check_floating_ip_status(floating_ip, floatingip_status)
         # call the common method in the parent class
         super(TestNetworkBasicOps, self).check_public_network_connectivity(
             ip_address, ssh_login, private_key, should_connect, msg,
             self.servers)
-        if should_check_floating_ip_status:
-            self.check_floating_ip_status(floating_ip, floatingip_status)
 
     def _disassociate_floating_ips(self):
         floating_ip, server = self.floating_ip_tuple
diff --git a/tempest/scenario/test_swift_telemetry_middleware.py b/tempest/scenario/test_swift_telemetry_middleware.py
index 8305641..16c3976 100644
--- a/tempest/scenario/test_swift_telemetry_middleware.py
+++ b/tempest/scenario/test_swift_telemetry_middleware.py
@@ -53,7 +53,7 @@
             skip_msg = "Ceilometer feature for fast work mysql is disabled"
             raise cls.skipException(skip_msg)
         super(TestSwiftTelemetry, cls).resource_setup()
-        cls.telemetry_client = cls.manager.telemetry_client
+        cls.telemetry_client = cls.os_operator.telemetry_client
 
     def _confirm_notifications(self, container_name, obj_name):
         """
diff --git a/tempest/services/compute/json/volumes_extensions_client.py b/tempest/services/compute/json/volumes_extensions_client.py
index a9cada8..b2d5cf9 100644
--- a/tempest/services/compute/json/volumes_extensions_client.py
+++ b/tempest/services/compute/json/volumes_extensions_client.py
@@ -26,6 +26,12 @@
 
 class VolumesExtensionsClientJSON(service_client.ServiceClient):
 
+    def __init__(self, auth_provider, service, region,
+                 default_volume_size=1, **kwargs):
+        super(VolumesExtensionsClientJSON, self).__init__(
+            auth_provider, service, region, **kwargs)
+        self.default_volume_size = default_volume_size
+
     def list_volumes(self, params=None):
         """List all the volumes created."""
         url = 'os-volumes'
@@ -56,7 +62,7 @@
         self.validate_response(schema.create_get_volume, resp, body)
         return service_client.ResponseBody(resp, body['volume'])
 
-    def create_volume(self, size, **kwargs):
+    def create_volume(self, size=None, **kwargs):
         """
         Creates a new Volume.
         size(Required): Size of volume in GB.
@@ -64,6 +70,8 @@
         display_name: Optional Volume Name.
         metadata: A dictionary of values to be used as metadata.
         """
+        if size is None:
+            size = self.default_volume_size
         post_body = {
             'size': size
         }
diff --git a/tempest/stress/actions/volume_attach_delete.py b/tempest/stress/actions/volume_attach_delete.py
index 2e1d623..a5e393f 100644
--- a/tempest/stress/actions/volume_attach_delete.py
+++ b/tempest/stress/actions/volume_attach_delete.py
@@ -29,7 +29,6 @@
         name = data_utils.rand_name("volume")
         self.logger.info("creating volume: %s" % name)
         volume = self.manager.volumes_client.create_volume(
-            size=1,
             display_name=name)
         self.manager.volumes_client.wait_for_volume_status(volume['id'],
                                                            'available')
diff --git a/tempest/stress/actions/volume_attach_verify.py b/tempest/stress/actions/volume_attach_verify.py
index c013af3..a6abd82 100644
--- a/tempest/stress/actions/volume_attach_verify.py
+++ b/tempest/stress/actions/volume_attach_verify.py
@@ -78,7 +78,6 @@
         self.logger.info("creating volume: %s" % name)
         volumes_client = self.manager.volumes_client
         self.volume = volumes_client.create_volume(
-            size=1,
             display_name=name)
         volumes_client.wait_for_volume_status(self.volume['id'],
                                               'available')
diff --git a/tempest/stress/actions/volume_create_delete.py b/tempest/stress/actions/volume_create_delete.py
index 93402d9..4870055 100644
--- a/tempest/stress/actions/volume_create_delete.py
+++ b/tempest/stress/actions/volume_create_delete.py
@@ -20,8 +20,7 @@
         name = data_utils.rand_name("volume")
         self.logger.info("creating %s" % name)
         volumes_client = self.manager.volumes_client
-        volume = volumes_client.create_volume(size=1,
-                                              display_name=name)
+        volume = volumes_client.create_volume(display_name=name)
         vol_id = volume['id']
         volumes_client.wait_for_volume_status(vol_id, 'available')
         self.logger.info("created %s" % volume['id'])
diff --git a/tempest/tests/common/test_accounts.py b/tempest/tests/common/test_accounts.py
index 1e6b651..58e3c0c 100644
--- a/tempest/tests/common/test_accounts.py
+++ b/tempest/tests/common/test_accounts.py
@@ -51,7 +51,19 @@
             {'username': 'test_user5', 'tenant_name': 'test_tenant5',
              'password': 'p'},
             {'username': 'test_user6', 'tenant_name': 'test_tenant6',
-             'password': 'p'},
+             'password': 'p', 'roles': ['role1', 'role2']},
+            {'username': 'test_user7', 'tenant_name': 'test_tenant7',
+             'password': 'p', 'roles': ['role2', 'role3']},
+            {'username': 'test_user8', 'tenant_name': 'test_tenant8',
+             'password': 'p', 'roles': ['role4', 'role1']},
+            {'username': 'test_user9', 'tenant_name': 'test_tenant9',
+             'password': 'p', 'roles': ['role1', 'role2', 'role3', 'role4']},
+            {'username': 'test_user10', 'tenant_name': 'test_tenant10',
+             'password': 'p', 'roles': ['role1', 'role2', 'role3', 'role4']},
+            {'username': 'test_user11', 'tenant_name': 'test_tenant11',
+             'password': 'p', 'roles': [cfg.CONF.identity.admin_role]},
+            {'username': 'test_user12', 'tenant_name': 'test_tenant12',
+             'password': 'p', 'roles': [cfg.CONF.identity.admin_role]},
         ]
         self.useFixture(mockpatch.Patch(
             'tempest.common.accounts.read_accounts_yaml',
@@ -64,7 +76,8 @@
         for account in accounts_list:
             hash = hashlib.md5()
             hash.update(str(account))
-            hash_list.append(hash.hexdigest())
+            temp_hash = hash.hexdigest()
+            hash_list.append(temp_hash)
         return hash_list
 
     def test_get_hash(self):
@@ -83,8 +96,8 @@
         hash_dict = test_account_class.get_hash_dict(self.test_accounts)
         hash_list = self._get_hash_list(self.test_accounts)
         for hash in hash_list:
-            self.assertIn(hash, hash_dict.keys())
-            self.assertIn(hash_dict[hash], self.test_accounts)
+            self.assertIn(hash, hash_dict['creds'].keys())
+            self.assertIn(hash_dict['creds'][hash], self.test_accounts)
 
     def test_create_hash_file_previous_file(self):
         # Emulate the lock existing on the filesystem
@@ -201,6 +214,62 @@
         test_accounts_class = accounts.Accounts('test_name')
         self.assertFalse(test_accounts_class.is_multi_user())
 
+    def test__get_creds_by_roles_one_role(self):
+        self.useFixture(mockpatch.Patch(
+            'tempest.common.accounts.read_accounts_yaml',
+            return_value=self.test_accounts))
+        test_accounts_class = accounts.Accounts('test_name')
+        hashes = test_accounts_class.hash_dict['roles']['role4']
+        temp_hash = hashes[0]
+        get_free_hash_mock = self.useFixture(mockpatch.PatchObject(
+            test_accounts_class, '_get_free_hash', return_value=temp_hash))
+        # Test a single role returns all matching roles
+        test_accounts_class._get_creds(roles=['role4'])
+        calls = get_free_hash_mock.mock.mock_calls
+        self.assertEqual(len(calls), 1)
+        args = calls[0][1][0]
+        for i in hashes:
+            self.assertIn(i, args)
+
+    def test__get_creds_by_roles_list_role(self):
+        self.useFixture(mockpatch.Patch(
+            'tempest.common.accounts.read_accounts_yaml',
+            return_value=self.test_accounts))
+        test_accounts_class = accounts.Accounts('test_name')
+        hashes = test_accounts_class.hash_dict['roles']['role4']
+        hashes2 = test_accounts_class.hash_dict['roles']['role2']
+        hashes = list(set(hashes) & set(hashes2))
+        temp_hash = hashes[0]
+        get_free_hash_mock = self.useFixture(mockpatch.PatchObject(
+            test_accounts_class, '_get_free_hash', return_value=temp_hash))
+        # Test an intersection of multiple roles
+        test_accounts_class._get_creds(roles=['role2', 'role4'])
+        calls = get_free_hash_mock.mock.mock_calls
+        self.assertEqual(len(calls), 1)
+        args = calls[0][1][0]
+        for i in hashes:
+            self.assertIn(i, args)
+
+    def test__get_creds_by_roles_no_admin(self):
+        self.useFixture(mockpatch.Patch(
+            'tempest.common.accounts.read_accounts_yaml',
+            return_value=self.test_accounts))
+        test_accounts_class = accounts.Accounts('test_name')
+        hashes = test_accounts_class.hash_dict['creds'].keys()
+        admin_hashes = test_accounts_class.hash_dict['roles'][
+            cfg.CONF.identity.admin_role]
+        temp_hash = hashes[0]
+        get_free_hash_mock = self.useFixture(mockpatch.PatchObject(
+            test_accounts_class, '_get_free_hash', return_value=temp_hash))
+        # Test an intersection of multiple roles
+        test_accounts_class._get_creds()
+        calls = get_free_hash_mock.mock.mock_calls
+        self.assertEqual(len(calls), 1)
+        args = calls[0][1][0]
+        self.assertEqual(len(args), 10)
+        for i in admin_hashes:
+            self.assertNotIn(i, args)
+
 
 class TestNotLockingAccount(base.TestCase):
 
diff --git a/tempest/tests/test_tenant_isolation.py b/tempest/tests/test_tenant_isolation.py
index ab76a93..a420a8f 100644
--- a/tempest/tests/test_tenant_isolation.py
+++ b/tempest/tests/test_tenant_isolation.py
@@ -75,6 +75,17 @@
                             {'id': '1', 'name': 'FakeRole'}]))))
         return roles_fix
 
+    def _mock_list_2_roles(self):
+        roles_fix = self.useFixture(mockpatch.PatchObject(
+            json_iden_client.IdentityClientJSON,
+            'list_roles',
+            return_value=(service_client.ResponseBodyList
+                          (200,
+                           [{'id': '1234', 'name': 'role1'},
+                            {'id': '1', 'name': 'FakeRole'},
+                            {'id': '12345', 'name': 'role2'}]))))
+        return roles_fix
+
     def _mock_assign_user_role(self):
         tenant_fix = self.useFixture(mockpatch.PatchObject(
             json_iden_client.IdentityClientJSON,
@@ -145,7 +156,6 @@
                                'assign_user_role') as user_mock:
             admin_creds = iso_creds.get_admin_creds()
         user_mock.assert_has_calls([
-            mock.call('1234', '1234', '1'),
             mock.call('1234', '1234', '1234')])
         self.assertEqual(admin_creds.username, 'fake_admin_user')
         self.assertEqual(admin_creds.tenant_name, 'fake_admin_tenant')
@@ -154,6 +164,34 @@
         self.assertEqual(admin_creds.user_id, '1234')
 
     @mock.patch('tempest_lib.common.rest_client.RestClient')
+    def test_role_creds(self, MockRestClient):
+        cfg.CONF.set_default('neutron', False, 'service_available')
+        iso_creds = isolated_creds.IsolatedCreds('test class',
+                                                 password='fake_password')
+        self._mock_list_2_roles()
+        self._mock_user_create('1234', 'fake_role_user')
+        self._mock_tenant_create('1234', 'fake_role_tenant')
+
+        user_mock = mock.patch.object(json_iden_client.IdentityClientJSON,
+                                      'assign_user_role')
+        user_mock.start()
+        self.addCleanup(user_mock.stop)
+        with mock.patch.object(json_iden_client.IdentityClientJSON,
+                               'assign_user_role') as user_mock:
+            role_creds = iso_creds.get_creds_by_roles(roles=['role1', 'role2'])
+        calls = user_mock.mock_calls
+        # Assert that the role creation is called with the 2 specified roles
+        self.assertEqual(len(calls), 2)
+        args = map(lambda x: x[1], calls)
+        self.assertIn(('1234', '1234', '1234'), args)
+        self.assertIn(('1234', '1234', '12345'), args)
+        self.assertEqual(role_creds.username, 'fake_role_user')
+        self.assertEqual(role_creds.tenant_name, 'fake_role_tenant')
+        # Verify IDs
+        self.assertEqual(role_creds.tenant_id, '1234')
+        self.assertEqual(role_creds.user_id, '1234')
+
+    @mock.patch('tempest_lib.common.rest_client.RestClient')
     def test_all_cred_cleanup(self, MockRestClient):
         cfg.CONF.set_default('neutron', False, 'service_available')
         iso_creds = isolated_creds.IsolatedCreds('test class',
diff --git a/tempest/thirdparty/boto/test_ec2_instance_run.py b/tempest/thirdparty/boto/test_ec2_instance_run.py
index 39767a4..4a2bd23 100644
--- a/tempest/thirdparty/boto/test_ec2_instance_run.py
+++ b/tempest/thirdparty/boto/test_ec2_instance_run.py
@@ -249,7 +249,8 @@
 
         self.addResourceCleanUp(self.destroy_reservation,
                                 reservation)
-        volume = self.ec2_client.create_volume(1, self.zone)
+        volume = self.ec2_client.create_volume(CONF.volume.volume_size,
+                                               self.zone)
         LOG.debug("Volume created - status: %s", volume.status)
 
         self.addResourceCleanUp(self.destroy_volume_wait, volume)
diff --git a/tempest/thirdparty/boto/test_ec2_volumes.py b/tempest/thirdparty/boto/test_ec2_volumes.py
index 318e8e3..9a6d13f 100644
--- a/tempest/thirdparty/boto/test_ec2_volumes.py
+++ b/tempest/thirdparty/boto/test_ec2_volumes.py
@@ -49,7 +49,7 @@
     @test.idempotent_id('663f0077-c743-48ad-8ae0-46821cbc0918')
     def test_create_get_delete(self):
         # EC2 Create, get, delete Volume
-        volume = self.client.create_volume(1, self.zone)
+        volume = self.client.create_volume(CONF.volume.volume_size, self.zone)
         cuk = self.addResourceCleanUp(self.client.delete_volume, volume.id)
         self.assertIn(volume.status, self.valid_volume_status)
         retrieved = self.client.get_all_volumes((volume.id,))
@@ -62,14 +62,15 @@
     @test.idempotent_id('c6b60d7a-1af7-4f8e-af21-d539d9496149')
     def test_create_volume_from_snapshot(self):
         # EC2 Create volume from snapshot
-        volume = self.client.create_volume(1, self.zone)
+        volume = self.client.create_volume(CONF.volume.volume_size, self.zone)
         self.addResourceCleanUp(self.client.delete_volume, volume.id)
         self.assertVolumeStatusWait(volume, "available")
         snap = self.client.create_snapshot(volume.id)
         self.addResourceCleanUp(self.destroy_snapshot_wait, snap)
         self.assertSnapshotStatusWait(snap, "completed")
 
-        svol = self.client.create_volume(1, self.zone, snapshot=snap)
+        svol = self.client.create_volume(CONF.volume.volume_size, self.zone,
+                                         snapshot=snap)
         cuk = self.addResourceCleanUp(svol.delete)
         self.assertVolumeStatusWait(svol, "available")
         svol.delete()