Add check that SSH validate returns true
[snaps.git] / snaps / openstack / tests / create_instance_tests.py
index 756b45f..827f305 100644 (file)
@@ -14,6 +14,7 @@
 # limitations under the License.
 import logging
 import os
+import re
 import time
 import unittest
 import uuid
@@ -27,7 +28,7 @@ from snaps.openstack.create_image import OpenStackImage
 from snaps.openstack.create_security_group import SecurityGroupSettings, OpenStackSecurityGroup
 from snaps.openstack.tests import openstack_tests, validation_utils
 from snaps.openstack.utils import nova_utils
-from snaps.openstack.tests.os_source_file_test import OSComponentTestCase, OSIntegrationTestCase
+from snaps.openstack.tests.os_source_file_test import OSIntegrationTestCase
 
 __author__ = 'spisarski'
 
@@ -58,10 +59,21 @@ class VmInstanceSettingsUnitTests(unittest.TestCase):
             VmInstanceSettings(config={'name': 'foo'})
 
     def test_name_flavor_only(self):
-        settings = VmInstanceSettings(name='foo', flavor='bar')
+        with self.assertRaises(Exception):
+            VmInstanceSettings(name='foo', flavor='bar')
+
+    def test_config_with_name_flavor_only(self):
+        with self.assertRaises(Exception):
+            VmInstanceSettings(config={'name': 'foo', 'flavor': 'bar'})
+
+    def test_name_flavor_port_only(self):
+        port_settings = PortSettings(name='foo-port', network_name='bar-net')
+        settings = VmInstanceSettings(name='foo', flavor='bar', port_settings=[port_settings])
         self.assertEquals('foo', settings.name)
         self.assertEquals('bar', settings.flavor)
-        self.assertEquals(0, len(settings.port_settings))
+        self.assertEquals(1, len(settings.port_settings))
+        self.assertEquals('foo-port', settings.port_settings[0].name)
+        self.assertEquals('bar-net', settings.port_settings[0].network_name)
         self.assertEquals(0, len(settings.security_group_names))
         self.assertEquals(0, len(settings.floating_ip_settings))
         self.assertIsNone(settings.sudo_user)
@@ -70,11 +82,14 @@ class VmInstanceSettingsUnitTests(unittest.TestCase):
         self.assertEquals(180, settings.ssh_connect_timeout)
         self.assertIsNone(settings.availability_zone)
 
-    def test_config_with_name_flavor_only(self):
-        settings = VmInstanceSettings(config={'name': 'foo', 'flavor': 'bar'})
+    def test_config_with_name_flavor_port_only(self):
+        port_settings = PortSettings(name='foo-port', network_name='bar-net')
+        settings = VmInstanceSettings(config={'name': 'foo', 'flavor': 'bar', 'ports': [port_settings]})
         self.assertEquals('foo', settings.name)
         self.assertEquals('bar', settings.flavor)
-        self.assertEquals(0, len(settings.port_settings))
+        self.assertEquals(1, len(settings.port_settings))
+        self.assertEquals('foo-port', settings.port_settings[0].name)
+        self.assertEquals('bar-net', settings.port_settings[0].network_name)
         self.assertEquals(0, len(settings.security_group_names))
         self.assertEquals(0, len(settings.floating_ip_settings))
         self.assertIsNone(settings.sudo_user)
@@ -228,7 +243,7 @@ class SimpleHealthCheck(OSIntegrationTestCase):
         self.floating_ip_name = guid + 'fip1'
 
         # Initialize for tearDown()
-        self.image_creator = None
+        self.image_creators = list()
         self.network_creator = None
         self.flavor_creator = None
         self.inst_creator = None
@@ -238,12 +253,34 @@ class SimpleHealthCheck(OSIntegrationTestCase):
         self.port_settings = PortSettings(
             name=self.port_1_name, network_name=self.priv_net_config.network_settings.name)
 
+        # set the default image settings, then set any custom parameters sent from the app
         self.os_image_settings = openstack_tests.cirros_url_image(name=guid + '-image')
 
+        if self.image_metadata:
+            if self.image_metadata['disk_url']:
+                self.os_image_settings.url = self.image_metadata['disk_url']
+            if self.image_metadata['extra_properties']:
+                self.os_image_settings.extra_properties = self.image_metadata['extra_properties']
+
         try:
-            # Create Image
-            self.image_creator = OpenStackImage(self.os_creds, self.os_image_settings)
-            self.image_creator.create()
+            # Create Image; if this is a 3-part image create the kernel and ramdisk images first
+            if self.image_metadata:
+                if self.image_metadata['kernel_url']:
+                    kernel_image_settings = openstack_tests.cirros_url_image(
+                        name=self.os_image_settings.name+'_kernel', url=self.image_metadata['kernel_url'])
+                    self.image_creators.append(OpenStackImage(self.os_creds, kernel_image_settings))
+                    kernel_image = self.image_creators[-1].create()
+                    self.os_image_settings.extra_properties['kernel_id'] = kernel_image.id
+
+                if self.image_metadata['ramdisk_url']:
+                    ramdisk_image_settings = openstack_tests.cirros_url_image(
+                        name=self.os_image_settings.name+'_ramdisk', url=self.image_metadata['ramdisk_url'])
+                    self.image_creators.append(OpenStackImage(self.os_creds, ramdisk_image_settings))
+                    ramdisk_image = self.image_creators[-1].create()
+                    self.os_image_settings.extra_properties['ramdisk_id'] = ramdisk_image.id
+
+            self.image_creators.append(OpenStackImage(self.os_creds, self.os_image_settings))
+            self.image_creators[-1].create()
 
             # Create Network
             self.network_creator = OpenStackNetwork(self.os_creds, self.priv_net_config.network_settings)
@@ -252,7 +289,7 @@ class SimpleHealthCheck(OSIntegrationTestCase):
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
                 self.admin_os_creds,
-                FlavorSettings(name=guid + '-flavor-name', ram=1024, disk=10, vcpus=1))
+                FlavorSettings(name=guid + '-flavor-name', ram=1024, disk=10, vcpus=1, metadata=self.flavor_metadata))
             self.flavor_creator.create()
         except Exception as e:
             self.tearDown()
@@ -277,18 +314,14 @@ class SimpleHealthCheck(OSIntegrationTestCase):
         if self.flavor_creator:
             try:
                 self.flavor_creator.clean()
-            except Exception as e:
-                logger.error('Unexpected exception cleaning flavor with message - ' + e.message)
-
-        if self.network_creator:
-            try:
-                self.network_creator.clean()
             except Exception as e:
                 logger.error('Unexpected exception cleaning network with message - ' + e.message)
 
-        if self.image_creator:
+        if self.image_creators:
             try:
-                self.image_creator.clean()
+                while self.image_creators:
+                    self.image_creators[-1].clean()
+                    self.image_creators.pop()
             except Exception as e:
                 logger.error('Unexpected exception cleaning image with message - ' + e.message)
 
@@ -302,7 +335,7 @@ class SimpleHealthCheck(OSIntegrationTestCase):
         instance_settings = VmInstanceSettings(
             name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name, port_settings=[self.port_settings])
 
-        self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creator.image_settings)
+        self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creators[-1].image_settings)
         vm = self.inst_creator.create()
 
         ip = self.inst_creator.get_port_ip(self.port_settings.name)
@@ -311,15 +344,22 @@ class SimpleHealthCheck(OSIntegrationTestCase):
         self.assertTrue(self.inst_creator.vm_active(block=True))
 
         found = False
-        timeout = 100
+        timeout = 160
         start_time = time.time()
-        match_value = 'Lease of ' + ip + ' obtained,'
+        match_value = 'Lease of.*obtained'
 
+        logger.info("Looking for expression %s in the console log" % match_value)
         while timeout > time.time() - start_time:
             output = vm.get_console_output()
-            if match_value in output:
-                found = True
+            if re.search(match_value, output):
+                logger.info('DHCP lease obtained logged in console')
+                if ip in output:
+                    logger.info('With correct IP address')
+                    found = True
+                else:
+                    logger.error('With incorrect IP address')
                 break
+
         self.assertTrue(found)
 
 
@@ -339,20 +379,35 @@ class CreateInstanceSimpleTests(OSIntegrationTestCase):
         self.nova = nova_utils.nova_client(self.os_creds)
         self.os_image_settings = openstack_tests.cirros_url_image(name=guid + '-image')
 
+        net_config = openstack_tests.get_priv_net_config(
+            net_name=guid + '-pub-net', subnet_name=guid + '-pub-subnet',
+            router_name=guid + '-pub-router', external_net=self.ext_net_name)
+
         # Initialize for tearDown()
         self.image_creator = None
         self.flavor_creator = None
+
+        self.net_creator = None
         self.inst_creator = None
 
         try:
             # Create Image
             self.image_creator = OpenStackImage(self.os_creds, self.os_image_settings)
             self.image_creator.create()
+
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
                 self.admin_os_creds,
-                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2))
+                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2, metadata=self.flavor_metadata))
             self.flavor_creator.create()
+
+            # Create Network
+            self.network_creator = OpenStackNetwork(self.os_creds, net_config.network_settings)
+            self.network_creator.create()
+
+            self.port_settings = PortSettings(name=guid + '-port',
+                                              network_name=net_config.network_settings.name)
+
         except Exception as e:
             self.tearDown()
             raise e
@@ -373,6 +428,12 @@ class CreateInstanceSimpleTests(OSIntegrationTestCase):
             except Exception as e:
                 logger.error('Unexpected exception cleaning flavor with message - ' + e.message)
 
+        if self.net_creator:
+            try:
+                self.net_creator.clean()
+            except Exception as e:
+                logger.error('Unexpected exception cleaning network with message - ' + e.message)
+
         if self.image_creator:
             try:
                 self.image_creator.clean()
@@ -385,7 +446,8 @@ class CreateInstanceSimpleTests(OSIntegrationTestCase):
         """
         Tests the creation of an OpenStack instance with a single port with a static IP without a Floating IP.
         """
-        instance_settings = VmInstanceSettings(name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name)
+        instance_settings = VmInstanceSettings(name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name,
+                                               port_settings=[self.port_settings])
 
         self.inst_creator = OpenStackVmInstance(
             self.os_creds, instance_settings, self.image_creator.image_settings)
@@ -453,7 +515,7 @@ class CreateInstanceSingleNetworkTests(OSIntegrationTestCase):
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
                 self.admin_os_creds,
-                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2))
+                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2, metadata=self.flavor_metadata))
             self.flavor_creator.create()
 
             self.keypair_creator = OpenStackKeypair(
@@ -562,7 +624,7 @@ class CreateInstanceSingleNetworkTests(OSIntegrationTestCase):
         self.assertTrue(inst_creator.vm_active(block=True))
         self.assertEquals(vm_inst, inst_creator.get_vm_inst())
 
-        validate_ssh_client(inst_creator)
+        self.assertTrue(validate_ssh_client(inst_creator))
 
     def test_ssh_client_fip_after_active(self):
         """
@@ -589,7 +651,7 @@ class CreateInstanceSingleNetworkTests(OSIntegrationTestCase):
         self.assertTrue(inst_creator.vm_active(block=True))
         self.assertEquals(vm_inst, inst_creator.get_vm_inst())
 
-        validate_ssh_client(inst_creator)
+        self.assertTrue(validate_ssh_client(inst_creator))
 
     # TODO - Determine how allowed_address_pairs is supposed to operate before continuing this test
     # see http://docs.openstack.org/developer/dragonflow/specs/allowed_address_pairs.html for a functional description
@@ -717,7 +779,7 @@ class CreateInstancePortManipulationTests(OSIntegrationTestCase):
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
                 self.admin_os_creds,
-                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2))
+                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2, metadata=self.flavor_metadata))
             self.flavor_creator.create()
         except Exception as e:
             self.tearDown()
@@ -904,7 +966,7 @@ class CreateInstancePortManipulationTests(OSIntegrationTestCase):
             self.inst_creator.create()
 
 
-class CreateInstanceOnComputeHost(OSComponentTestCase):
+class CreateInstanceOnComputeHost(OSIntegrationTestCase):
     """
     Test for the CreateInstance where one VM is deployed to each compute node
     """
@@ -914,6 +976,8 @@ class CreateInstanceOnComputeHost(OSComponentTestCase):
         Instantiates the CreateImage object that is responsible for downloading and creating an OS image file
         within OpenStack
         """
+        super(self.__class__, self).__start__()
+
         guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
         self.vm_inst_name = guid + '-inst'
         self.port_base_name = guid + 'port'
@@ -931,17 +995,17 @@ class CreateInstanceOnComputeHost(OSComponentTestCase):
 
         try:
             # Create Network
-            self.network_creator = OpenStackNetwork(self.os_creds, self.priv_net_config.network_settings)
+            self.network_creator = OpenStackNetwork(self.admin_os_creds, self.priv_net_config.network_settings)
             self.network_creator.create()
 
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
-                self.os_creds,
-                FlavorSettings(name=guid + '-flavor-name', ram=512, disk=1, vcpus=1))
+                self.admin_os_creds,
+                FlavorSettings(name=guid + '-flavor-name', ram=512, disk=1, vcpus=1, metadata=self.flavor_metadata))
             self.flavor_creator.create()
 
             # Create Image
-            self.image_creator = OpenStackImage(self.os_creds, self.os_image_settings)
+            self.image_creator = OpenStackImage(self.admin_os_creds, self.os_image_settings)
             self.image_creator.create()
 
         except Exception as e:
@@ -976,12 +1040,14 @@ class CreateInstanceOnComputeHost(OSComponentTestCase):
             except Exception as e:
                 logger.error('Unexpected exception cleaning image with message - ' + e.message)
 
+        super(self.__class__, self).__clean__()
+
     def test_deploy_vm_to_each_compute_node(self):
         """
         Tests the creation of OpenStack VM instances to each compute node.
         """
         from snaps.openstack.utils import nova_utils
-        nova = nova_utils.nova_client(self.os_creds)
+        nova = nova_utils.nova_client(self.admin_os_creds)
         zones = nova_utils.get_nova_availability_zones(nova)
 
         # Create Instance on each server/zone
@@ -996,7 +1062,7 @@ class CreateInstanceOnComputeHost(OSComponentTestCase):
                 name=inst_name, flavor=self.flavor_creator.flavor_settings.name, availability_zone=zone,
                 port_settings=[port_settings])
             inst_creator = OpenStackVmInstance(
-                self.os_creds, instance_settings, self.image_creator.image_settings)
+                self.admin_os_creds, instance_settings, self.image_creator.image_settings)
             self.inst_creators.append(inst_creator)
             inst_creator.create()
 
@@ -1072,7 +1138,8 @@ class CreateInstancePubPrivNetTests(OSIntegrationTestCase):
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
                 self.admin_os_creds,
-                FlavorSettings(name=self.guid + '-flavor-name', ram=2048, disk=10, vcpus=2))
+                FlavorSettings(name=self.guid + '-flavor-name', ram=2048, disk=10, vcpus=2,
+                               metadata=self.flavor_metadata))
             self.flavor_creator.create()
 
             # Create Keypair
@@ -1196,21 +1263,17 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
         self.nova = nova_utils.nova_client(self.os_creds)
         self.os_image_settings = openstack_tests.cirros_url_image(name=self.guid + '-image')
 
-        self.keypair_priv_filepath = 'tmp/' + self.guid
-        self.keypair_pub_filepath = self.keypair_priv_filepath + '.pub'
-        self.keypair_name = self.guid + '-kp'
         self.vm_inst_name = self.guid + '-inst'
         self.port_1_name = self.guid + 'port-1'
         self.port_2_name = self.guid + 'port-2'
         self.floating_ip_name = self.guid + 'fip1'
 
-        self.pub_net_config = openstack_tests.get_pub_net_config(
+        net_config = openstack_tests.get_priv_net_config(
             net_name=self.guid + '-pub-net', subnet_name=self.guid + '-pub-subnet',
             router_name=self.guid + '-pub-router', external_net=self.ext_net_name)
 
         # Initialize for tearDown()
         self.image_creator = None
-        self.keypair_creator = None
         self.flavor_creator = None
         self.network_creator = None
         self.router_creator = None
@@ -1223,24 +1286,18 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
             self.image_creator.create()
 
             # Create Network
-            self.network_creator = OpenStackNetwork(self.os_creds, self.pub_net_config.network_settings)
+            self.network_creator = OpenStackNetwork(self.os_creds, net_config.network_settings)
             self.network_creator.create()
 
-            # Create Router
-            self.router_creator = OpenStackRouter(self.os_creds, self.pub_net_config.router_settings)
-            self.router_creator.create()
-
             # Create Flavor
             self.flavor_creator = OpenStackFlavor(
                 self.admin_os_creds,
-                FlavorSettings(name=self.guid + '-flavor-name', ram=2048, disk=10, vcpus=2))
+                FlavorSettings(name=self.guid + '-flavor-name', ram=2048, disk=10, vcpus=2,
+                               metadata=self.flavor_metadata))
             self.flavor_creator.create()
 
-            self.keypair_creator = OpenStackKeypair(
-                self.os_creds, KeypairSettings(
-                    name=self.keypair_name, public_filepath=self.keypair_pub_filepath,
-                    private_filepath=self.keypair_priv_filepath))
-            self.keypair_creator.create()
+            self.port_settings = PortSettings(name=self.guid + '-port',
+                                              network_name=net_config.network_settings.name)
         except Exception as e:
             self.tearDown()
             raise e
@@ -1261,30 +1318,12 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
             except Exception as e:
                 logger.error('Unexpected exception cleaning security group with message - ' + e.message)
 
-        if self.keypair_creator:
-            try:
-                self.keypair_creator.clean()
-            except Exception as e:
-                logger.error('Unexpected exception cleaning keypair with message - ' + e.message)
-
-        if os.path.isfile(self.keypair_pub_filepath):
-            os.remove(self.keypair_pub_filepath)
-
-        if os.path.isfile(self.keypair_priv_filepath):
-            os.remove(self.keypair_priv_filepath)
-
         if self.flavor_creator:
             try:
                 self.flavor_creator.clean()
             except Exception as e:
                 logger.error('Unexpected exception cleaning flavor with message - ' + e.message)
 
-        if self.router_creator:
-            try:
-                self.router_creator.clean()
-            except Exception as e:
-                logger.error('Unexpected exception cleaning router with message - ' + e.message)
-
         if self.network_creator:
             try:
                 self.network_creator.clean()
@@ -1305,9 +1344,9 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
         """
         # Create instance
         instance_settings = VmInstanceSettings(
-            name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name)
+            name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name, port_settings=[self.port_settings])
         self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creator.image_settings)
-        vm_inst = self.inst_creator.create()
+        vm_inst = self.inst_creator.create(block=True)
         self.assertIsNotNone(vm_inst)
 
         # Create security group object to add to instance
@@ -1331,9 +1370,9 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
         """
         # Create instance
         instance_settings = VmInstanceSettings(
-            name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name)
+            name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name, port_settings=[self.port_settings])
         self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creator.image_settings)
-        vm_inst = self.inst_creator.create()
+        vm_inst = self.inst_creator.create(block=True)
         self.assertIsNotNone(vm_inst)
 
         # Create security group object to add to instance
@@ -1365,9 +1404,9 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
         # Create instance
         instance_settings = VmInstanceSettings(
             name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name,
-            security_group_names=[sec_grp_settings.name])
+            security_group_names=[sec_grp_settings.name], port_settings=[self.port_settings])
         self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creator.image_settings)
-        vm_inst = self.inst_creator.create()
+        vm_inst = self.inst_creator.create(block=True)
         self.assertIsNotNone(vm_inst)
 
         # Check that group has been added
@@ -1391,13 +1430,13 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
 
         # Create instance
         instance_settings = VmInstanceSettings(
-            name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name)
+            name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name, port_settings=[self.port_settings])
         self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creator.image_settings)
-        vm_inst = self.inst_creator.create()
+        vm_inst = self.inst_creator.create(block=True)
         self.assertIsNotNone(vm_inst)
 
         # Check that group has been added
-        self.assertFalse(inst_has_sec_grp(vm_inst, sec_grp_settings.name))
+        self.assertFalse(inst_has_sec_grp(self.inst_creator.get_vm_inst(), sec_grp_settings.name))
 
         # Add security group to instance after activated
         self.assertFalse(self.inst_creator.remove_security_group(sec_grp))
@@ -1418,13 +1457,13 @@ class InstanceSecurityGroupTests(OSIntegrationTestCase):
         # Create instance
         instance_settings = VmInstanceSettings(
             name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name,
-            security_group_names=[sec_grp_settings.name])
+            security_group_names=[sec_grp_settings.name], port_settings=[self.port_settings])
         self.inst_creator = OpenStackVmInstance(self.os_creds, instance_settings, self.image_creator.image_settings)
-        vm_inst = self.inst_creator.create()
+        vm_inst = self.inst_creator.create(block=True)
         self.assertIsNotNone(vm_inst)
 
         # Check that group has been added
-        self.assertTrue(inst_has_sec_grp(vm_inst, sec_grp_settings.name))
+        self.assertTrue(inst_has_sec_grp(self.inst_creator.get_vm_inst(), sec_grp_settings.name))
 
         # Add security group to instance after activated
         self.assertTrue(self.inst_creator.add_security_group(sec_grp))
@@ -1472,3 +1511,131 @@ def validate_ssh_client(instance_creator):
         return True
 
     return False
+
+
+class CreateInstanceFromThreePartImage(OSIntegrationTestCase):
+    """
+    Test for the CreateInstance class for creating an image from a 3-part image
+    """
+
+    def setUp(self):
+        """
+        Instantiates the CreateImage object that is responsible for downloading and creating an OS image file
+        within OpenStack
+        """
+        super(self.__class__, self).__start__()
+
+        guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
+        self.image_name = guid
+        self.vm_inst_name = guid + '-inst'
+        self.nova = nova_utils.nova_client(self.os_creds)
+
+        net_config = openstack_tests.get_priv_net_config(
+            net_name=guid + '-pub-net', subnet_name=guid + '-pub-subnet',
+            router_name=guid + '-pub-router', external_net=self.ext_net_name)
+
+        # Initialize for tearDown()
+        self.image_creators = list()
+        self.network_creator = None
+        self.flavor_creator = None
+        self.inst_creator = None
+
+        try:
+            # Create Images
+            # Create the kernel image
+            kernel_image_settings = openstack_tests.cirros_url_image(
+                name=self.image_name+'_kernel',
+                url='http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-kernel')
+            self.image_creators.append(OpenStackImage(self.os_creds, kernel_image_settings))
+            kernel_image = self.image_creators[-1].create()
+
+            # Create the ramdisk image
+            ramdisk_image_settings = openstack_tests.cirros_url_image(
+                name=self.image_name+'_ramdisk',
+                url='http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-initramfs')
+            self.image_creators.append(OpenStackImage(self.os_creds, ramdisk_image_settings))
+            ramdisk_image = self.image_creators[-1].create()
+            self.assertIsNotNone(ramdisk_image)
+
+            # Create the main image
+            os_image_settings = openstack_tests.cirros_url_image(
+                name=self.image_name,
+                url='http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img')
+            properties = dict()
+            properties['kernel_id'] = kernel_image.id
+            properties['ramdisk_id'] = ramdisk_image.id
+            os_image_settings.extra_properties = properties
+            self.image_creators.append(OpenStackImage(self.os_creds, os_image_settings))
+            created_image = self.image_creators[-1].create()
+            self.assertIsNotNone(created_image)
+
+            # Create Flavor
+            self.flavor_creator = OpenStackFlavor(
+                self.admin_os_creds,
+                FlavorSettings(name=guid + '-flavor-name', ram=2048, disk=10, vcpus=2, metadata=self.flavor_metadata))
+            self.flavor_creator.create()
+
+            # Create Network
+            self.network_creator = OpenStackNetwork(self.os_creds, net_config.network_settings)
+            self.network_creator.create()
+
+            self.port_settings = PortSettings(name=guid + '-port',
+                                              network_name=net_config.network_settings.name)
+        except Exception as e:
+            self.tearDown()
+            raise e
+
+    def tearDown(self):
+        """
+        Cleans the created object
+        """
+        if self.inst_creator:
+            try:
+                self.inst_creator.clean()
+            except Exception as e:
+                logger.error('Unexpected exception cleaning VM instance with message - ' + e.message)
+
+        if self.flavor_creator:
+            try:
+                self.flavor_creator.clean()
+            except Exception as e:
+                logger.error('Unexpected exception cleaning flavor with message - ' + e.message)
+
+        if self.network_creator:
+            try:
+                self.network_creator.clean()
+            except Exception as e:
+                logger.error('Unexpected exception cleaning network with message - ' + e.message)
+
+        if self.image_creators:
+            try:
+                while self.image_creators:
+                    self.image_creators[0].clean()
+                    self.image_creators.pop(0)
+            except Exception as e:
+                logger.error('Unexpected exception cleaning image with message - ' + e.message)
+
+        super(self.__class__, self).__clean__()
+
+    def test_create_delete_instance_from_three_part_image(self):
+        """
+        Tests the creation of an OpenStack instance from a 3-part image.
+        """
+        instance_settings = VmInstanceSettings(name=self.vm_inst_name, flavor=self.flavor_creator.flavor_settings.name,
+                                               port_settings=[self.port_settings])
+
+        # The last created image is the main image from which we create the instance
+        self.inst_creator = OpenStackVmInstance(
+            self.os_creds, instance_settings, self.image_creators[-1].image_settings)
+
+        vm_inst = self.inst_creator.create()
+        self.assertEquals(1, len(nova_utils.get_servers_by_name(self.nova, instance_settings.name)))
+
+        # Delete instance
+        nova_utils.delete_vm_instance(self.nova, vm_inst)
+
+        self.assertTrue(self.inst_creator.vm_deleted(block=True))
+        self.assertEquals(0, len(nova_utils.get_servers_by_name(self.nova, instance_settings.name)))
+
+        # Exception should not be thrown
+        self.inst_creator.clean()