Add regression test for bug #1928063

Related-Bug: #1928063
Change-Id: Ieb19b4e5ffde56b7f72805aa231f595f45989e60

Author: lyarwood

nova/tests/functional/regressions/test_bug_1928063.py

@@ -0,0 +1,69 @@
+# 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 copy
+import mock
+
+from oslo_utils.fixture import uuidsentinel as uuids
+
+from nova import test
+from nova.tests.functional.api import client
+from nova.tests.functional.libvirt import base
+from nova.tests.unit.virt.libvirt import fakelibvirt
+from nova.virt.libvirt.host import SEV_KERNEL_PARAM_FILE
+
+
+class TestSEVInstanceReboot(base.ServersTestBase):
+    """Regression test for bug #1899835
+
+    This regression test aims to assert the failure to hard reboot SEV based
+    instances due to the use of image_meta.name within
+    nova.virt.hardware.get_mem_encryption_constraint.
+    """
+    microversion = 'latest'
+
+    @test.patch_exists(SEV_KERNEL_PARAM_FILE, True)
+    @test.patch_open(SEV_KERNEL_PARAM_FILE, "1\n")
+    @mock.patch.object(
+        fakelibvirt.virConnect, '_domain_capability_features',
+        new=fakelibvirt.virConnect._domain_capability_features_with_SEV)
+    def setUp(self):
+        super().setUp()
+
+        # Configure the compute to allow SEV based instances and then start
+        self.flags(num_memory_encrypted_guests=16, group='libvirt')
+        self.start_compute()
+
+        # Create a SEV enabled image for the test
+        sev_image = copy.deepcopy(self.glance.image1)
+        sev_image['id'] = uuids.sev_image_id
+        sev_image['properties']['hw_firmware_type'] = 'uefi'
+        sev_image['properties']['hw_machine_type'] = 'q35'
+        sev_image['properties']['hw_mem_encryption'] = 'True'
+        self.glance.create(None, sev_image)
+
+    def test_hard_reboot(self):
+        # Launch a SEV based instance and then attempt to hard reboot
+        server = self._create_server(
+            image_uuid=uuids.sev_image_id,
+            networks='none'
+        )
+
+        # FIXME(lyarwood): This is bug #1928063, the instance fails to reboot
+        # due to a NotImplementedError exception being raised when we try to
+        # access image_meta.name as this isn't stashed in the system_metadata
+        # of the instance and as a result is not provided in the image_meta
+        # associated with the instance during this flow.
+        ex = self.assertRaises(
+            client.OpenStackApiException,
+            self._reboot_server, server, hard=True)
+        self.assertEqual(500, ex.response.status_code)