diff --git a/etc/tempest.conf.sample b/etc/tempest.conf.sample
index 937bbd3..9357b62 100644
--- a/etc/tempest.conf.sample
+++ b/etc/tempest.conf.sample
@@ -524,6 +524,16 @@
 #disk_format=raw
 
 
+[debug]
+
+#
+# Options defined in tempest.config
+#
+
+# Enable diagnostic commands (boolean value)
+#enable=true
+
+
 [dashboard]
 
 #
@@ -610,14 +620,15 @@
 #operator_role=Member
 
 
-[debug]
+[network-feature-enabled]
 
 #
 # Options defined in tempest.config
 #
 
-# Enable diagnostic commands (boolean value)
-#enable=true
+# A list of enabled extensions with a special entry all which
+# indicates every extension is enabled (list value)
+#api_extensions=all
 
 
 [service_available]
@@ -671,8 +682,13 @@
 # If false, skip disk config tests (boolean value)
 #disk_config=true
 
-# If false, skip flavor extra data test (boolean value)
-#flavor_extra=true
+# A list of enabled extensions with a special entry all which
+# indicates every extension is enabled (list value)
+#api_extensions=all
+
+# A list of enabled v3 extensions with a special entry all
+# which indicates every extension is enabled (list value)
+#api_v3_extensions=all
 
 # Does the test environment support changing the admin
 # password? (boolean value)
@@ -730,4 +746,8 @@
 # (boolean value)
 #multi_backend=false
 
+# A list of enabled extensions with a special entry all which
+# indicates every extension is enabled (list value)
+#api_extensions=all
+
 
diff --git a/tempest/api/compute/__init__.py b/tempest/api/compute/__init__.py
index a528754..dd92ee9 100644
--- a/tempest/api/compute/__init__.py
+++ b/tempest/api/compute/__init__.py
@@ -26,7 +26,6 @@
 RESIZE_AVAILABLE = CONFIG.compute_feature_enabled.resize
 CHANGE_PASSWORD_AVAILABLE = CONFIG.compute_feature_enabled.change_password
 DISK_CONFIG_ENABLED = CONFIG.compute_feature_enabled.disk_config
-FLAVOR_EXTRA_DATA_ENABLED = CONFIG.compute_feature_enabled.flavor_extra
 MULTI_USER = True
 
 
diff --git a/tempest/api/compute/admin/test_flavors.py b/tempest/api/compute/admin/test_flavors.py
index c5a8772..cf72e49 100644
--- a/tempest/api/compute/admin/test_flavors.py
+++ b/tempest/api/compute/admin/test_flavors.py
@@ -17,12 +17,10 @@
 
 import uuid
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
-from tempest.test import skip_because
+from tempest import test
 
 
 class FlavorsAdminTestJSON(base.BaseV2ComputeAdminTest):
@@ -36,7 +34,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsAdminTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -87,19 +85,19 @@
 
         return flavor['id']
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_flavor_with_int_id(self):
         flavor_id = data_utils.rand_int_id(start=1000)
         new_flavor_id = self._create_flavor(flavor_id)
         self.assertEqual(new_flavor_id, str(flavor_id))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_flavor_with_uuid_id(self):
         flavor_id = str(uuid.uuid4())
         new_flavor_id = self._create_flavor(flavor_id)
         self.assertEqual(new_flavor_id, flavor_id)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_flavor_with_none_id(self):
         # If nova receives a request with None as flavor_id,
         # nova generates flavor_id of uuid.
@@ -107,7 +105,7 @@
         new_flavor_id = self._create_flavor(flavor_id)
         self.assertEqual(new_flavor_id, str(uuid.UUID(new_flavor_id)))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_flavor_verify_entry_in_list_details(self):
         # Create a flavor and ensure it's details are listed
         # This operation requires the user to have 'admin' role
@@ -132,7 +130,7 @@
                 flag = True
         self.assertTrue(flag)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_get_flavor_details_for_deleted_flavor(self):
         # Delete a flavor and ensure it is not listed
         # Create a test flavor
@@ -166,7 +164,7 @@
                 flag = False
         self.assertTrue(flag)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_list_flavor_without_extra_data(self):
         # Create a flavor and ensure it is listed
         # This operation requires the user to have 'admin' role
@@ -210,8 +208,8 @@
                 flag = True
         self.assertTrue(flag)
 
-    @skip_because(bug="1209101")
-    @attr(type='gate')
+    @test.skip_because(bug="1209101")
+    @test.attr(type='gate')
     def test_list_non_public_flavor(self):
         # Create a flavor with os-flavor-access:is_public false should
         # be present in list_details.
@@ -244,7 +242,7 @@
                 flag = True
         self.assertFalse(flag)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_server_with_non_public_flavor(self):
         # Create a flavor with os-flavor-access:is_public false
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -264,7 +262,7 @@
                           self.os.servers_client.create_server,
                           'test', self.image_ref, flavor['id'])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_public_flavor_with_other_user(self):
         # Create a Flavor with public access.
         # Try to List/Get flavor with another user
@@ -288,7 +286,7 @@
                 flag = True
         self.assertTrue(flag)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_is_public_string_variations(self):
         flavor_id_not_public = data_utils.rand_int_id(start=1000)
         flavor_name_not_public = data_utils.rand_name(self.flavor_name_prefix)
@@ -331,7 +329,7 @@
         _test_string_variations(['t', 'true', 'yes', '1'],
                                 flavor_name_public)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_flavor_using_string_ram(self):
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
@@ -349,13 +347,13 @@
         self.assertEqual(flavor['ram'], int(ram))
         self.assertEqual(int(flavor['id']), new_flavor_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_invalid_is_public_string(self):
         self.assertRaises(exceptions.BadRequest,
                           self.client.list_flavors_with_detail,
                           {'is_public': 'invalid'})
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_flavor_as_user(self):
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
@@ -366,13 +364,13 @@
                           new_flavor_id, ephemeral=self.ephemeral,
                           swap=self.swap, rxtx=self.rxtx)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_delete_flavor_as_user(self):
         self.assertRaises(exceptions.Unauthorized,
                           self.user_client.delete_flavor,
                           self.flavor_ref_alt)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_flavor_using_invalid_ram(self):
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
@@ -382,7 +380,7 @@
                           flavor_name, -1, self.vcpus,
                           self.disk, new_flavor_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_flavor_using_invalid_vcpus(self):
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
         new_flavor_id = data_utils.rand_int_id(start=1000)
diff --git a/tempest/api/compute/admin/test_flavors_access.py b/tempest/api/compute/admin/test_flavors_access.py
index b866db1..048312b 100644
--- a/tempest/api/compute/admin/test_flavors_access.py
+++ b/tempest/api/compute/admin/test_flavors_access.py
@@ -15,10 +15,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsAccessTestJSON(base.BaseV2ComputeAdminTest):
@@ -33,7 +32,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsAccessTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -51,7 +50,7 @@
         cls.vcpus = 1
         cls.disk = 10
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_access_list_with_private_flavor(self):
         # Test to list flavor access successfully by querying private flavor
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -70,7 +69,7 @@
         self.assertEqual(str(new_flavor_id), str(first_flavor['flavor_id']))
         self.assertEqual(self.adm_tenant_id, first_flavor['tenant_id'])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_access_add_remove(self):
         # Test to add and remove flavor access to a given tenant.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
diff --git a/tempest/api/compute/admin/test_flavors_access_negative.py b/tempest/api/compute/admin/test_flavors_access_negative.py
index 340c1c7..976124e 100644
--- a/tempest/api/compute/admin/test_flavors_access_negative.py
+++ b/tempest/api/compute/admin/test_flavors_access_negative.py
@@ -17,11 +17,10 @@
 
 import uuid
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsAccessNegativeTestJSON(base.BaseV2ComputeAdminTest):
@@ -36,7 +35,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsAccessNegativeTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -54,7 +53,7 @@
         cls.vcpus = 1
         cls.disk = 10
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_access_list_with_public_flavor(self):
         # Test to list flavor access with exceptions by querying public flavor
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -70,7 +69,7 @@
                           self.client.list_flavor_access,
                           new_flavor_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_add(self):
         # Test to add flavor access as a user without admin privileges.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -86,7 +85,7 @@
                           new_flavor['id'],
                           self.tenant_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_remove(self):
         # Test to remove flavor access as a user without admin privileges.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -106,7 +105,7 @@
                           new_flavor['id'],
                           self.tenant_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_add_flavor_access_duplicate(self):
         # Create a new flavor.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -130,7 +129,7 @@
                           new_flavor['id'],
                           self.tenant_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_remove_flavor_access_not_found(self):
         # Create a new flavor.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs.py b/tempest/api/compute/admin/test_flavors_extra_specs.py
index 49b0429..875f742 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs.py
@@ -15,10 +15,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsExtraSpecsTestJSON(base.BaseV2ComputeAdminTest):
@@ -34,7 +33,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsExtraSpecsTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -61,7 +60,7 @@
         cls.client.wait_for_resource_deletion(cls.flavor['id'])
         super(FlavorsExtraSpecsTestJSON, cls).tearDownClass()
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_set_get_update_show_unset_keys(self):
         # Test to SET, GET, UPDATE, SHOW, UNSET flavor extra
         # spec as a user with admin privileges.
@@ -101,7 +100,7 @@
             self.client.unset_flavor_extra_spec(self.flavor['id'], "key2")
         self.assertEqual(unset_resp.status, 200)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_non_admin_get_all_keys(self):
         specs = {"key1": "value1", "key2": "value2"}
         set_resp, set_body = self.client.set_flavor_extra_spec(
@@ -113,7 +112,7 @@
         for key in specs:
             self.assertEqual(body[key], specs[key])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_non_admin_get_specific_key(self):
         specs = {"key1": "value1", "key2": "value2"}
         resp, body = self.client.set_flavor_extra_spec(
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
index d7e1f9f..fb09a63 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
@@ -16,11 +16,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsExtraSpecsNegativeTestJSON(base.BaseV2ComputeAdminTest):
@@ -35,7 +34,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsExtraSpecsNegativeTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -62,7 +61,7 @@
         cls.client.wait_for_resource_deletion(cls.flavor['id'])
         super(FlavorsExtraSpecsNegativeTestJSON, cls).tearDownClass()
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_set_keys(self):
         # Test to SET flavor extra spec as a user without admin privileges.
         specs = {"key1": "value1", "key2": "value2"}
@@ -71,7 +70,7 @@
                           self.flavor['id'],
                           specs)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_update_specific_key(self):
         # non admin user is not allowed to update flavor extra spec
         specs = {"key1": "value1", "key2": "value2"}
@@ -86,7 +85,7 @@
                           'key1',
                           key1='value1_new')
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_unset_keys(self):
         specs = {"key1": "value1", "key2": "value2"}
         set_resp, set_body = self.client.set_flavor_extra_spec(
@@ -97,7 +96,7 @@
                           self.flavor['id'],
                           'key1')
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_unset_nonexistent_key(self):
         nonexistent_key = data_utils.rand_name('flavor_key')
         self.assertRaises(exceptions.NotFound,
@@ -105,14 +104,14 @@
                           self.flavor['id'],
                           nonexistent_key)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_get_nonexistent_key(self):
         self.assertRaises(exceptions.NotFound,
                           self.flavors_client.get_flavor_extra_spec_with_key,
                           self.flavor['id'],
                           "nonexistent_key")
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_update_mismatch_key(self):
         # the key will be updated should be match the key in the body
         self.assertRaises(exceptions.BadRequest,
@@ -121,7 +120,7 @@
                           "key2",
                           key1="value")
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_update_more_key(self):
         # there should be just one item in the request body
         self.assertRaises(exceptions.BadRequest,
diff --git a/tempest/api/compute/v3/admin/test_flavors_access.py b/tempest/api/compute/v3/admin/test_flavors_access.py
index b866db1..048312b 100644
--- a/tempest/api/compute/v3/admin/test_flavors_access.py
+++ b/tempest/api/compute/v3/admin/test_flavors_access.py
@@ -15,10 +15,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsAccessTestJSON(base.BaseV2ComputeAdminTest):
@@ -33,7 +32,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsAccessTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -51,7 +50,7 @@
         cls.vcpus = 1
         cls.disk = 10
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_access_list_with_private_flavor(self):
         # Test to list flavor access successfully by querying private flavor
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -70,7 +69,7 @@
         self.assertEqual(str(new_flavor_id), str(first_flavor['flavor_id']))
         self.assertEqual(self.adm_tenant_id, first_flavor['tenant_id'])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_access_add_remove(self):
         # Test to add and remove flavor access to a given tenant.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
diff --git a/tempest/api/compute/v3/admin/test_flavors_access_negative.py b/tempest/api/compute/v3/admin/test_flavors_access_negative.py
index 340c1c7..976124e 100644
--- a/tempest/api/compute/v3/admin/test_flavors_access_negative.py
+++ b/tempest/api/compute/v3/admin/test_flavors_access_negative.py
@@ -17,11 +17,10 @@
 
 import uuid
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsAccessNegativeTestJSON(base.BaseV2ComputeAdminTest):
@@ -36,7 +35,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsAccessNegativeTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -54,7 +53,7 @@
         cls.vcpus = 1
         cls.disk = 10
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_access_list_with_public_flavor(self):
         # Test to list flavor access with exceptions by querying public flavor
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -70,7 +69,7 @@
                           self.client.list_flavor_access,
                           new_flavor_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_add(self):
         # Test to add flavor access as a user without admin privileges.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -86,7 +85,7 @@
                           new_flavor['id'],
                           self.tenant_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_remove(self):
         # Test to remove flavor access as a user without admin privileges.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -106,7 +105,7 @@
                           new_flavor['id'],
                           self.tenant_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_add_flavor_access_duplicate(self):
         # Create a new flavor.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
@@ -130,7 +129,7 @@
                           new_flavor['id'],
                           self.tenant_id)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_remove_flavor_access_not_found(self):
         # Create a new flavor.
         flavor_name = data_utils.rand_name(self.flavor_name_prefix)
diff --git a/tempest/api/compute/v3/admin/test_flavors_extra_specs.py b/tempest/api/compute/v3/admin/test_flavors_extra_specs.py
index 49b0429..875f742 100644
--- a/tempest/api/compute/v3/admin/test_flavors_extra_specs.py
+++ b/tempest/api/compute/v3/admin/test_flavors_extra_specs.py
@@ -15,10 +15,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsExtraSpecsTestJSON(base.BaseV2ComputeAdminTest):
@@ -34,7 +33,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsExtraSpecsTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -61,7 +60,7 @@
         cls.client.wait_for_resource_deletion(cls.flavor['id'])
         super(FlavorsExtraSpecsTestJSON, cls).tearDownClass()
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_set_get_update_show_unset_keys(self):
         # Test to SET, GET, UPDATE, SHOW, UNSET flavor extra
         # spec as a user with admin privileges.
@@ -101,7 +100,7 @@
             self.client.unset_flavor_extra_spec(self.flavor['id'], "key2")
         self.assertEqual(unset_resp.status, 200)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_non_admin_get_all_keys(self):
         specs = {"key1": "value1", "key2": "value2"}
         set_resp, set_body = self.client.set_flavor_extra_spec(
@@ -113,7 +112,7 @@
         for key in specs:
             self.assertEqual(body[key], specs[key])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_flavor_non_admin_get_specific_key(self):
         specs = {"key1": "value1", "key2": "value2"}
         resp, body = self.client.set_flavor_extra_spec(
diff --git a/tempest/api/compute/v3/admin/test_flavors_extra_specs_negative.py b/tempest/api/compute/v3/admin/test_flavors_extra_specs_negative.py
index d7e1f9f..fb09a63 100644
--- a/tempest/api/compute/v3/admin/test_flavors_extra_specs_negative.py
+++ b/tempest/api/compute/v3/admin/test_flavors_extra_specs_negative.py
@@ -16,11 +16,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api import compute
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
+from tempest import test
 
 
 class FlavorsExtraSpecsNegativeTestJSON(base.BaseV2ComputeAdminTest):
@@ -35,7 +34,7 @@
     @classmethod
     def setUpClass(cls):
         super(FlavorsExtraSpecsNegativeTestJSON, cls).setUpClass()
-        if not compute.FLAVOR_EXTRA_DATA_ENABLED:
+        if not test.is_extension_enabled('FlavorExtraData', 'compute'):
             msg = "FlavorExtraData extension not enabled."
             raise cls.skipException(msg)
 
@@ -62,7 +61,7 @@
         cls.client.wait_for_resource_deletion(cls.flavor['id'])
         super(FlavorsExtraSpecsNegativeTestJSON, cls).tearDownClass()
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_set_keys(self):
         # Test to SET flavor extra spec as a user without admin privileges.
         specs = {"key1": "value1", "key2": "value2"}
@@ -71,7 +70,7 @@
                           self.flavor['id'],
                           specs)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_update_specific_key(self):
         # non admin user is not allowed to update flavor extra spec
         specs = {"key1": "value1", "key2": "value2"}
@@ -86,7 +85,7 @@
                           'key1',
                           key1='value1_new')
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_non_admin_unset_keys(self):
         specs = {"key1": "value1", "key2": "value2"}
         set_resp, set_body = self.client.set_flavor_extra_spec(
@@ -97,7 +96,7 @@
                           self.flavor['id'],
                           'key1')
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_unset_nonexistent_key(self):
         nonexistent_key = data_utils.rand_name('flavor_key')
         self.assertRaises(exceptions.NotFound,
@@ -105,14 +104,14 @@
                           self.flavor['id'],
                           nonexistent_key)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_get_nonexistent_key(self):
         self.assertRaises(exceptions.NotFound,
                           self.flavors_client.get_flavor_extra_spec_with_key,
                           self.flavor['id'],
                           "nonexistent_key")
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_update_mismatch_key(self):
         # the key will be updated should be match the key in the body
         self.assertRaises(exceptions.BadRequest,
@@ -121,7 +120,7 @@
                           "key2",
                           key1="value")
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_flavor_update_more_key(self):
         # there should be just one item in the request body
         self.assertRaises(exceptions.BadRequest,
diff --git a/tempest/config.py b/tempest/config.py
index 220fd04..3d9eba9 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -208,9 +208,14 @@
     cfg.BoolOpt('disk_config',
                 default=True,
                 help="If false, skip disk config tests"),
-    cfg.BoolOpt('flavor_extra',
-                default=True,
-                help="If false, skip flavor extra data test"),
+    cfg.ListOpt('api_extensions',
+                default=['all'],
+                help='A list of enabled extensions with a special entry all '
+                     'which indicates every extension is enabled'),
+    cfg.ListOpt('api_v3_extensions',
+                default=['all'],
+                help='A list of enabled v3 extensions with a special entry all'
+                     ' which indicates every extension is enabled'),
     cfg.BoolOpt('change_password',
                 default=False,
                 help="Does the test environment support changing the admin "
@@ -317,6 +322,16 @@
                     "connectivity"),
 ]
 
+network_feature_group = cfg.OptGroup(name='network-feature-enabled',
+                                     title='Enabled network service features')
+
+NetworkFeaturesGroup = [
+    cfg.ListOpt('api_extensions',
+                default=['all'],
+                help='A list of enabled extensions with a special entry all '
+                     'which indicates every extension is enabled'),
+]
+
 volume_group = cfg.OptGroup(name='volume',
                             title='Block Storage Options')
 
@@ -360,7 +375,11 @@
 VolumeFeaturesGroup = [
     cfg.BoolOpt('multi_backend',
                 default=False,
-                help="Runs Cinder multi-backend test (requires 2 backends)")
+                help="Runs Cinder multi-backend test (requires 2 backends)"),
+    cfg.ListOpt('api_extensions',
+                default=['all'],
+                help='A list of enabled extensions with a special entry all '
+                     'which indicates every extension is enabled'),
 ]
 
 
@@ -659,6 +678,8 @@
         register_opt_group(cfg.CONF, image_group, ImageGroup)
         register_opt_group(cfg.CONF, image_feature_group, ImageFeaturesGroup)
         register_opt_group(cfg.CONF, network_group, NetworkGroup)
+        register_opt_group(cfg.CONF, network_feature_group,
+                           NetworkFeaturesGroup)
         register_opt_group(cfg.CONF, volume_group, VolumeGroup)
         register_opt_group(cfg.CONF, volume_feature_group,
                            VolumeFeaturesGroup)
@@ -680,6 +701,7 @@
         self.images = cfg.CONF.image
         self.image_feature_enabled = cfg.CONF['image-feature-enabled']
         self.network = cfg.CONF.network
+        self.network_feature_enabled = cfg.CONF['network-feature-enabled']
         self.volume = cfg.CONF.volume
         self.volume_feature_enabled = cfg.CONF['volume-feature-enabled']
         self.object_storage = cfg.CONF['object-storage']
diff --git a/tempest/test.py b/tempest/test.py
index 6ae7925..ceb2c80 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -123,6 +123,42 @@
     return decorator
 
 
+def requires_ext(*args, **kwargs):
+    """A decorator to skip tests if an extension is not enabled
+
+    @param extension
+    @param service
+    """
+    def decorator(func):
+        @functools.wraps(func)
+        def wrapper(*func_args, **func_kwargs):
+            if not is_extension_enabled(kwargs['extension'],
+                                        kwargs['service']):
+                msg = "Skipped because %s extension: %s is not enabled" % (
+                    kwargs['service'], kwargs['extension'])
+                raise testtools.TestCase.skipException(msg)
+            return func(*func_args, **func_kwargs)
+        return wrapper
+    return decorator
+
+
+def is_extension_enabled(extension_name, service):
+    """A function that will check the list of enabled extensions from config
+
+    """
+    configs = config.TempestConfig()
+    config_dict = {
+        'compute': configs.compute_feature_enabled.api_extensions,
+        'compute_v3': configs.compute_feature_enabled.api_v3_extensions,
+        'volume': configs.volume_feature_enabled.api_extensions,
+        'network': configs.network_feature_enabled.api_extensions,
+    }
+    if config_dict[service][0] == 'all':
+        return True
+    if extension_name in config_dict[service]:
+        return True
+    return False
+
 # there is a mis-match between nose and testtools for older pythons.
 # testtools will set skipException to be either
 # unittest.case.SkipTest, unittest2.case.SkipTest or an internal skip