Boot server from encrypted volume

This patch adds support for booting a server from an
encrypted volume while using luks encryption method.

Note: manager.create_server method passes wait_until='ACTIVE',
so 'create_test_server' function in common/compute.py waits
until the server status is 'ACTIVE'.

Change-Id: Ibd05252976499daaaafc658e3f3a920398b53420
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index b692acf..9329f41 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -1259,6 +1259,17 @@
             type_id, provider=provider, key_size=key_size, cipher=cipher,
             control_location=control_location)['encryption']
 
+    def create_encrypted_volume(self, encryption_provider, volume_type,
+                                key_size=256, cipher='aes-xts-plain64',
+                                control_location='front-end'):
+        volume_type = self.create_volume_type(name=volume_type)
+        self.create_encryption_type(type_id=volume_type['id'],
+                                    provider=encryption_provider,
+                                    key_size=key_size,
+                                    cipher=cipher,
+                                    control_location=control_location)
+        return self.create_volume(volume_type=volume_type['name'])
+
 
 class ObjectStorageScenarioTest(ScenarioTest):
     """Provide harness to do Object Storage scenario tests.
diff --git a/tempest/scenario/test_encrypted_cinder_volumes.py b/tempest/scenario/test_encrypted_cinder_volumes.py
index d7b86f6..cbdf307 100644
--- a/tempest/scenario/test_encrypted_cinder_volumes.py
+++ b/tempest/scenario/test_encrypted_cinder_volumes.py
@@ -48,15 +48,6 @@
 
         return self.create_server(image_id=image, key_name=keypair['name'])
 
-    def create_encrypted_volume(self, encryption_provider, volume_type):
-        volume_type = self.create_volume_type(name=volume_type)
-        self.create_encryption_type(type_id=volume_type['id'],
-                                    provider=encryption_provider,
-                                    key_size=256,
-                                    cipher='aes-xts-plain64',
-                                    control_location='front-end')
-        return self.create_volume(volume_type=volume_type['name'])
-
     def attach_detach_volume(self, server, volume):
         attached_volume = self.nova_volume_attach(server, volume)
         self.nova_volume_detach(server, attached_volume)
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index 3dfbf18..96d0474 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -24,7 +24,7 @@
 LOG = logging.getLogger(__name__)
 
 
-class TestVolumeBootPattern(manager.ScenarioTest):
+class TestVolumeBootPattern(manager.EncryptionScenarioTest):
 
     # Boot from volume scenario is quite slow, and needs extra
     # breathing room to get through deletes in the time allotted.
@@ -227,3 +227,26 @@
 
         # delete instance
         self._delete_server(instance)
+
+    @decorators.idempotent_id('cb78919a-e553-4bab-b73b-10cf4d2eb125')
+    @testtools.skipIf(CONF.volume.storage_protocol.lower() in ['ceph', 'nfs'],
+                      'Currently, {} does not support volume encryption'
+                      .format(CONF.volume.storage_protocol))
+    @test.services('compute', 'volume')
+    def test_boot_server_from_encrypted_volume_luks(self):
+        # Create an encrypted volume
+        volume = self.create_encrypted_volume('nova.volume.encryptors.'
+                                              'luks.LuksEncryptor',
+                                              volume_type='luks')
+
+        self.volumes_client.set_bootable_volume(volume['id'], bootable=True)
+
+        # Boot a server from the encrypted volume
+        server = self._boot_instance_from_resource(
+            source_id=volume['id'],
+            source_type='volume',
+            delete_on_termination=False)
+
+        server_info = self.servers_client.show_server(server['id'])['server']
+        created_volume = server_info['os-extended-volumes:volumes_attached']
+        self.assertEqual(volume['id'], created_volume[0]['id'])