From: Anton Arefiev Date: Tue, 31 Mar 2015 16:44:57 +0000 (+0300) Subject: Fix properties extracting from image with glance api v2 X-Git-Url: https://review.fuel-infra.org/gitweb?a=commitdiff_plain;h=f20643ca44e139e3384b9dea638b54c2235b1169;p=openstack-build%2Fcinder-build.git Fix properties extracting from image with glance api v2 When a volume is created using the glance v1 API, the non based properties places in 'properties' dict, and nova is expected to find them here. Otherwise api's v2 return custom image properties as base properties, so nova can't find them in volume 'image properties'. This change add new glance call to get image schema, it allows extract custom properties from image. Closes-Bug: 1323660 Change-Id: Ib54bb6759b27334294fb2c6d2c0bfe4eae3d0920 --- diff --git a/cinder/image/glance.py b/cinder/image/glance.py index 961e7cce6..c4a1afe2d 100644 --- a/cinder/image/glance.py +++ b/cinder/image/glance.py @@ -161,9 +161,7 @@ class GlanceClientWrapper(object): If we get a connection error, retry the request according to CONF.glance_num_retries. """ - version = self.version - if 'version' in kwargs: - version = kwargs['version'] + version = kwargs.pop('version', self.version) retry_excs = (glanceclient.exc.ServiceUnavailable, glanceclient.exc.InvalidEndpoint, @@ -174,7 +172,9 @@ class GlanceClientWrapper(object): client = self.client or self._create_onetime_client(context, version) try: - return getattr(client.images, method)(*args, **kwargs) + controller = getattr(client, + kwargs.pop('controller', 'images')) + return getattr(controller, method)(*args, **kwargs) except retry_excs as e: netloc = self.netloc extra = "retrying" @@ -199,6 +199,7 @@ class GlanceImageService(object): def __init__(self, client=None): self._client = client or GlanceClientWrapper() + self._image_schema = None def detail(self, context, **kwargs): """Calls out to Glance for a list of detailed image information.""" @@ -211,7 +212,7 @@ class GlanceImageService(object): _images = [] for image in images: if self._is_image_available(context, image): - _images.append(self._translate_from_glance(image)) + _images.append(self._translate_from_glance(context, image)) return _images @@ -240,7 +241,7 @@ class GlanceImageService(object): if not self._is_image_available(context, image): raise exception.ImageNotFound(image_id=image_id) - base_image_meta = self._translate_from_glance(image) + base_image_meta = self._translate_from_glance(context, image) return base_image_meta def get_location(self, context, image_id): @@ -305,7 +306,7 @@ class GlanceImageService(object): recv_service_image_meta = self._client.call(context, 'create', **sent_service_image_meta) - return self._translate_from_glance(recv_service_image_meta) + return self._translate_from_glance(context, recv_service_image_meta) def update(self, context, image_id, image_meta, data=None, purge_props=True): @@ -330,7 +331,7 @@ class GlanceImageService(object): except Exception: _reraise_translated_image_exception(image_id) else: - return self._translate_from_glance(image_meta) + return self._translate_from_glance(context, image_meta) def delete(self, context, image_id): """Delete the given image. @@ -345,19 +346,47 @@ class GlanceImageService(object): raise exception.ImageNotFound(image_id=image_id) return True + def _translate_from_glance(self, context, image): + """Get image metadata from glance image. + + Extract metadata from image and convert it's properties + to type cinder expected. + + :param image: glance image object + :return: image metadata dictionary + """ + if CONF.glance_api_version == 2: + if self._image_schema is None: + self._image_schema = self._client.call(context, 'get', + controller='schemas', + schema_name='image', + version=2) + # NOTE(aarefiev): get base image property, store image 'schema' + # is redundant, so ignore it. + image_meta = {key: getattr(image, key) + for key in image.keys() + if self._image_schema.is_base_property(key) is True + and key != 'schema'} + + # NOTE(aarefiev): nova is expected that all image properties + # (custom or defined in schema-image.json) stores in + # 'properties' key. + image_meta['properties'] = { + key: getattr(image, key) for key in image.keys() + if self._image_schema.is_base_property(key) is False} + else: + image_meta = _extract_attributes(image) + + image_meta = _convert_timestamps_to_datetimes(image_meta) + image_meta = _convert_from_string(image_meta) + return image_meta + @staticmethod def _translate_to_glance(image_meta): image_meta = _convert_to_string(image_meta) image_meta = _remove_read_only(image_meta) return image_meta - @staticmethod - def _translate_from_glance(image): - image_meta = _extract_attributes(image) - image_meta = _convert_timestamps_to_datetimes(image_meta) - image_meta = _convert_from_string(image_meta) - return image_meta - @staticmethod def _is_image_available(context, image): """Check image availability. diff --git a/cinder/tests/unit/glance/stubs.py b/cinder/tests/unit/glance/stubs.py index ea0a5b458..6094496c4 100644 --- a/cinder/tests/unit/glance/stubs.py +++ b/cinder/tests/unit/glance/stubs.py @@ -18,6 +18,13 @@ import glanceclient.exc NOW_GLANCE_FORMAT = "2010-10-11T10:30:22" +IMAGE_ATTRIBUTES = ['size', 'disk_format', 'owner', + 'container_format', 'checksum', 'id', + 'name', 'created_at', 'updated_at', + 'deleted', 'status', + 'min_disk', 'min_ram', 'is_public'] + + class StubGlanceClient(object): def __init__(self, images=None): @@ -88,11 +95,6 @@ class StubGlanceClient(object): class FakeImage(object): def __init__(self, metadata): - IMAGE_ATTRIBUTES = ['size', 'disk_format', 'owner', - 'container_format', 'checksum', 'id', - 'name', 'created_at', 'updated_at', - 'deleted', 'status', - 'min_disk', 'min_ram', 'is_public'] raw = dict.fromkeys(IMAGE_ATTRIBUTES) raw.update(metadata) self.__dict__['raw'] = raw @@ -108,3 +110,14 @@ class FakeImage(object): self.__dict__['raw'][key] = value except KeyError: raise AttributeError(key) + + def keys(self): + return self.__dict__['raw'].keys() + + +class FakeSchema(object): + def is_base_property(self, key): + if key in IMAGE_ATTRIBUTES: + return True + else: + return False diff --git a/cinder/tests/unit/image/test_glance.py b/cinder/tests/unit/image/test_glance.py index e1defc409..c53c3aae8 100644 --- a/cinder/tests/unit/image/test_glance.py +++ b/cinder/tests/unit/image/test_glance.py @@ -610,10 +610,6 @@ class TestGlanceImageService(test.TestCase): config.glance_api_version = 2 config.glance_num_retries = 0 - attributes = ['size', 'disk_format', 'owner', 'container_format', - 'checksum', 'id', 'name', 'created_at', 'updated_at', - 'deleted', 'status', 'min_disk', 'min_ram', 'is_public'] - metadata = { 'id': 1, 'size': 2, @@ -623,23 +619,13 @@ class TestGlanceImageService(test.TestCase): 'ramdisk_id': 'bar', } - class FakeSchema(object): - - def __init__(self, base): - self.base = base - - def is_base_property(self, key): - if key in self.base: - return True - else: - return False - image = glance_stubs.FakeImage(metadata) client = glance_stubs.StubGlanceClient() service = self._create_image_service(client) - service._image_schema = FakeSchema(attributes) - actual = service._translate_from_glance(image) + service._image_schema = glance_stubs.FakeSchema() + + actual = service._translate_from_glance('fake_context', image) expected = { 'id': 1, 'name': None, @@ -651,7 +637,6 @@ class TestGlanceImageService(test.TestCase): 'container_format': None, 'checksum': None, 'deleted': None, - 'deleted_at': None, 'status': None, 'properties': {'kernel_id': 'foo', 'ramdisk_id': 'bar'},