Add --volume option to image create command

Add ability to create an image from a volume.
* Added --volume command to image create
* Added --force option to image create
* Added block to access volume manager in image create
* Tests added for the volume option

Change-Id: I3910a2b5e04acd0d15dd230747ba6ebca07aa316
Closes-Bug: #1207615

Author: TerryHowe

openstackclient/image/v1/image.py

@@ -111,6 +111,19 @@ def get_parser(self, prog_name):
             help="Similar to --location, but this indicates that the image"
                  " should immediately be copied from the data store",
         )
+        parser.add_argument(
+            "--volume",
+            metavar="<volume>",
+            help="Create the image from the specified volume",
+        )
+        parser.add_argument(
+            "--force",
+            dest='force',
+            action='store_true',
+            default=False,
+            help="If the image is created from a volume, force creation of the"
+                 " image even if volume is in use.",
+        )
         parser.add_argument(
             "--property",
             dest="properties",
@@ -162,7 +175,9 @@ def take_action(self, parsed_args):
         args.pop("variables")
 
         if "location" not in args and "copy_from" not in args:
-            if "file" in args:
+            if "volume" in args:
+                pass
+            elif "file" in args:
                 args["data"] = open(args.pop("file"), "rb")
             else:
                 args["data"] = None
@@ -171,23 +186,35 @@ def take_action(self, parsed_args):
                         msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
                     args["data"] = sys.stdin
 
-        image_client = self.app.client_manager.image
-        try:
-            image = utils.find_resource(
-                image_client.images,
-                parsed_args.name,
-            )
-        except exceptions.CommandError:
-            # This is normal for a create or reserve (create w/o an image)
-            image = image_client.images.create(**args)
+        if "volume" in args:
+            volume_client = self.app.client_manager.volume
+            source_volume = utils.find_resource(volume_client.volumes,
+                                                parsed_args.volume)
+            response, body = volume_client.volumes.upload_to_image(
+                                source_volume,
+                                parsed_args.force,
+                                parsed_args.name,
+                                parsed_args.container_format,
+                                parsed_args.disk_format)
+            info = body['os-volume_upload_image']
         else:
-            # It must be an update
-            # If an image is specified via --file, --location or --copy-from
-            # let the API handle it
-            image = image_client.images.update(image, **args)
+            image_client = self.app.client_manager.image
+            try:
+                image = utils.find_resource(
+                    image_client.images,
+                    parsed_args.name,
+                )
+            except exceptions.CommandError:
+                # This is normal for a create or reserve (create w/o an image)
+                image = image_client.images.create(**args)
+            else:
+                # It must be an update
+                # If an image is specified via --file, --location or
+                # --copy-from let the API handle it
+                image = image_client.images.update(image, **args)
 
-        info = {}
-        info.update(image._info)
+            info = {}
+            info.update(image._info)
         return zip(*sorted(six.iteritems(info)))
 
 

openstackclient/tests/image/v1/test_image.py

@@ -14,6 +14,7 @@
 #
 
 import copy
+import mock
 
 from openstackclient.image.v1 import image
 from openstackclient.tests import fakes
@@ -30,6 +31,81 @@ def setUp(self):
         self.images_mock.reset_mock()
 
 
+class TestImageCreate(TestImage):
+
+    def setUp(self):
+        super(TestImageCreate, self).setUp()
+        self.images_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(image_fakes.IMAGE),
+            loaded=True,
+        )
+        self.cmd = image.CreateImage(self.app, None)
+
+    def test_create_volume(self):
+        arglist = [
+            '--volume', 'volly',
+            image_fakes.image_name,
+        ]
+        verifylist = [
+            ('volume', 'volly'),
+            ('name', image_fakes.image_name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        self.app.client_manager.volume = mock.Mock()
+        self.app.client_manager.volume.volumes = mock.Mock()
+        volumes = self.app.client_manager.volume.volumes
+        volumes.upload_to_image = mock.Mock()
+        response = {"id": 'volume_id',
+                    "updated_at": 'updated_at',
+                    "status": 'uploading',
+                    "display_description": 'desc',
+                    "size": 'size',
+                    "volume_type": 'volume_type',
+                    "image_id": 'image1',
+                    "container_format": parsed_args.container_format,
+                    "disk_format": parsed_args.disk_format,
+                    "image_name": parsed_args.name}
+        full_response = {"os-volume_upload_image": response}
+        volumes.upload_to_image.return_value = (201, full_response)
+        volume_resource = fakes.FakeResource(
+            None,
+            copy.deepcopy({'id': 'vol1', 'name': 'volly'}),
+            loaded=True,
+        )
+        volumes.get.return_value = volume_resource
+        results = self.cmd.take_action(parsed_args)
+        volumes.upload_to_image.assert_called_with(
+            volume_resource,
+            False,
+            image_fakes.image_name,
+            'bare',
+            'raw',
+        )
+        expects = [('container_format',
+                    'disk_format',
+                    'display_description',
+                    'id',
+                    'image_id',
+                    'image_name',
+                    'size',
+                    'status',
+                    'updated_at',
+                    'volume_type'),
+                   ('bare',
+                    'raw',
+                    'desc',
+                    'volume_id',
+                    'image1',
+                    'graven',
+                    'size',
+                    'uploading',
+                    'updated_at',
+                    'volume_type')]
+        for expected, result in zip(expects, results):
+            self.assertEqual(expected, result)
+
+
 class TestImageDelete(TestImage):
 
     def setUp(self):