diff --git a/tempest/config.py b/tempest/config.py
index de49bcc..55a7c61 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -277,6 +277,15 @@
                help="Valid secondary image reference to be used in tests. "
                     "This is a required option, but if only one image is "
                     "available duplicate the value of image_ref above"),
+    cfg.StrOpt('image_full_ref',
+               help="This is image with full OS like ubuntu/centos used"
+                    "in some tests. When not set related tests will be "
+                    "skipped"),
+    cfg.StrOpt('image_full_username',
+               default="ubuntu",
+               help="Username for image_full_ref authentication."),
+    cfg.StrOpt('image_full_flavor_ref',
+               help="Flavor to boot image_full_ref."),
     cfg.StrOpt('certified_image_ref',
                help="Valid image reference to be used in image certificate "
                     "validation tests when enabled. This image must also "
diff --git a/tempest/scenario/test_snapshot_pattern.py b/tempest/scenario/test_snapshot_pattern.py
index a062d40..d423d95 100644
--- a/tempest/scenario/test_snapshot_pattern.py
+++ b/tempest/scenario/test_snapshot_pattern.py
@@ -41,6 +41,11 @@
         super(TestSnapshotPattern, cls).skip_checks()
         if not CONF.compute_feature_enabled.snapshot:
             raise cls.skipException("Snapshotting is not available.")
+        if not all([CONF.compute.image_full_ref,
+                    CONF.compute.image_full_username,
+                    CONF.compute.image_full_flavor_ref]):
+            raise cls.skipException(
+                "Test requires image_full_* options to be set.")
 
     @decorators.idempotent_id('608e604b-1d63-4a82-8e3e-91bc665c90b4')
     @decorators.attr(type='slow')
@@ -51,16 +56,20 @@
         # prepare for booting an instance
         keypair = self.create_keypair()
         security_group = self._create_security_group()
+        username = CONF.compute.image_full_username
 
         # boot an instance and create a timestamp file in it
         server = self.create_server(
             key_name=keypair['name'],
-            security_groups=[{'name': security_group['name']}])
+            security_groups=[{'name': security_group['name']}],
+            flavor=CONF.compute.image_full_flavor_ref,
+            image_id=CONF.compute.image_full_ref)
 
         instance_ip = self.get_server_ip(server)
         timestamp = self.create_timestamp(instance_ip,
                                           private_key=keypair['private_key'],
-                                          server=server)
+                                          server=server,
+                                          username=username)
 
         # snapshot the instance
         snapshot_image = self.create_server_snapshot(server=server)
@@ -74,13 +83,15 @@
         server_from_snapshot = self.create_server(
             image_id=snapshot_image['id'],
             key_name=keypair['name'],
-            security_groups=[{'name': security_group['name']}])
+            security_groups=[{'name': security_group['name']}],
+            flavor=CONF.compute.image_full_flavor_ref)
 
         # check the existence of the timestamp file in the second instance
         server_from_snapshot_ip = self.get_server_ip(server_from_snapshot)
         timestamp2 = self.get_timestamp(server_from_snapshot_ip,
                                         private_key=keypair['private_key'],
-                                        server=server_from_snapshot)
+                                        server=server_from_snapshot,
+                                        username=username)
         self.assertEqual(timestamp, timestamp2)
 
         # snapshot the instance again