723 lines
26 KiB
Python
723 lines
26 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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import random
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import time
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import glanceclient.exc
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from nova import context
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from nova import exception
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from nova.image import glance
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from nova.openstack.common import cfg
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from nova import test
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from nova.tests.api.openstack import fakes
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from nova.tests.glance import stubs as glance_stubs
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from nova.tests import matchers
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CONF = cfg.CONF
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class NullWriter(object):
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"""Used to test ImageService.get which takes a writer object"""
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def write(self, *arg, **kwargs):
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pass
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class TestGlanceSerializer(test.TestCase):
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def test_serialize(self):
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metadata = {'name': 'image1',
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'is_public': True,
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'foo': 'bar',
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'properties': {
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'prop1': 'propvalue1',
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'mappings': [
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{'virtual': 'aaa',
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'device': 'bbb'},
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{'virtual': 'xxx',
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'device': 'yyy'}],
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'block_device_mapping': [
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{'virtual_device': 'fake',
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'device_name': '/dev/fake'},
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{'virtual_device': 'ephemeral0',
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'device_name': '/dev/fake0'}]}}
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converted_expected = {
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'name': 'image1',
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'is_public': True,
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'foo': 'bar',
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'properties': {
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'prop1': 'propvalue1',
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'mappings':
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'[{"device": "bbb", "virtual": "aaa"}, '
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'{"device": "yyy", "virtual": "xxx"}]',
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'block_device_mapping':
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'[{"virtual_device": "fake", "device_name": "/dev/fake"}, '
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'{"virtual_device": "ephemeral0", '
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'"device_name": "/dev/fake0"}]'}}
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converted = glance._convert_to_string(metadata)
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self.assertEqual(converted, converted_expected)
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self.assertEqual(glance._convert_from_string(converted), metadata)
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class TestGlanceImageService(test.TestCase):
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"""
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Tests the Glance image service.
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At a high level, the translations involved are:
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1. Glance -> ImageService - This is needed so we can support
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multple ImageServices (Glance, Local, etc)
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2. ImageService -> API - This is needed so we can support multple
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APIs (OpenStack, EC2)
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"""
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NOW_GLANCE_OLD_FORMAT = "2010-10-11T10:30:22"
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NOW_GLANCE_FORMAT = "2010-10-11T10:30:22.000000"
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class tzinfo(datetime.tzinfo):
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@staticmethod
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def utcoffset(*args, **kwargs):
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return datetime.timedelta()
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NOW_DATETIME = datetime.datetime(2010, 10, 11, 10, 30, 22, tzinfo=tzinfo())
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def setUp(self):
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super(TestGlanceImageService, self).setUp()
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fakes.stub_out_compute_api_snapshot(self.stubs)
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client = glance_stubs.StubGlanceClient()
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self.service = self._create_image_service(client)
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self.context = context.RequestContext('fake', 'fake', auth_token=True)
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def _create_image_service(self, client):
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def _fake_create_glance_client(context, host, port, use_ssl, version):
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return client
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self.stubs.Set(glance, '_create_glance_client',
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_fake_create_glance_client)
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client_wrapper = glance.GlanceClientWrapper(
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'fake', 'fake_host', 9292)
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return glance.GlanceImageService(client=client_wrapper)
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@staticmethod
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def _make_fixture(**kwargs):
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fixture = {'name': None,
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'properties': {},
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'status': None,
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'is_public': None}
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fixture.update(kwargs)
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return fixture
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def _make_datetime_fixture(self):
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return self._make_fixture(created_at=self.NOW_GLANCE_FORMAT,
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updated_at=self.NOW_GLANCE_FORMAT,
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deleted_at=self.NOW_GLANCE_FORMAT)
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def test_create_with_instance_id(self):
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"""Ensure instance_id is persisted as an image-property"""
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fixture = {'name': 'test image',
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'is_public': False,
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'properties': {'instance_id': '42', 'user_id': 'fake'}}
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image_id = self.service.create(self.context, fixture)['id']
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image_meta = self.service.show(self.context, image_id)
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expected = {
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'id': image_id,
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'name': 'test image',
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'is_public': False,
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'size': None,
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'min_disk': None,
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'min_ram': None,
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'disk_format': None,
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'container_format': None,
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'checksum': None,
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'created_at': self.NOW_DATETIME,
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'updated_at': self.NOW_DATETIME,
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'deleted_at': None,
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'deleted': None,
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'status': None,
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'properties': {'instance_id': '42', 'user_id': 'fake'},
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'owner': None,
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}
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self.assertThat(image_meta, matchers.DictMatches(expected))
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image_metas = self.service.detail(self.context)
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self.assertThat(image_metas[0], matchers.DictMatches(expected))
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def test_create_without_instance_id(self):
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"""
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Ensure we can create an image without having to specify an
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instance_id. Public images are an example of an image not tied to an
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instance.
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"""
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fixture = {'name': 'test image', 'is_public': False}
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image_id = self.service.create(self.context, fixture)['id']
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expected = {
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'id': image_id,
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'name': 'test image',
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'is_public': False,
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'size': None,
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'min_disk': None,
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'min_ram': None,
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'disk_format': None,
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'container_format': None,
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'checksum': None,
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'created_at': self.NOW_DATETIME,
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'updated_at': self.NOW_DATETIME,
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'deleted_at': None,
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'deleted': None,
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'status': None,
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'properties': {},
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'owner': None,
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}
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actual = self.service.show(self.context, image_id)
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self.assertThat(actual, matchers.DictMatches(expected))
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def test_create(self):
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fixture = self._make_fixture(name='test image')
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num_images = len(self.service.detail(self.context))
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image_id = self.service.create(self.context, fixture)['id']
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self.assertNotEquals(None, image_id)
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self.assertEquals(num_images + 1,
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len(self.service.detail(self.context)))
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def test_create_and_show_non_existing_image(self):
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fixture = self._make_fixture(name='test image')
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image_id = self.service.create(self.context, fixture)['id']
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self.assertNotEquals(None, image_id)
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self.assertRaises(exception.ImageNotFound,
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self.service.show,
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self.context,
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'bad image id')
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def test_detail_private_image(self):
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fixture = self._make_fixture(name='test image')
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fixture['is_public'] = False
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properties = {'owner_id': 'proj1'}
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fixture['properties'] = properties
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self.service.create(self.context, fixture)['id']
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proj = self.context.project_id
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self.context.project_id = 'proj1'
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image_metas = self.service.detail(self.context)
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self.context.project_id = proj
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self.assertEqual(1, len(image_metas))
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self.assertEqual(image_metas[0]['name'], 'test image')
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self.assertEqual(image_metas[0]['is_public'], False)
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def test_detail_marker(self):
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fixtures = []
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ids = []
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for i in range(10):
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fixture = self._make_fixture(name='TestImage %d' % (i))
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fixtures.append(fixture)
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ids.append(self.service.create(self.context, fixture)['id'])
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image_metas = self.service.detail(self.context, marker=ids[1])
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self.assertEquals(len(image_metas), 8)
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i = 2
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for meta in image_metas:
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expected = {
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'id': ids[i],
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'status': None,
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'is_public': None,
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'name': 'TestImage %d' % (i),
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'properties': {},
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'size': None,
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'min_disk': None,
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'min_ram': None,
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'disk_format': None,
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'container_format': None,
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'checksum': None,
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'created_at': self.NOW_DATETIME,
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'updated_at': self.NOW_DATETIME,
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'deleted_at': None,
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'deleted': None,
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'owner': None,
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}
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self.assertThat(meta, matchers.DictMatches(expected))
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i = i + 1
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def test_detail_limit(self):
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fixtures = []
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ids = []
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for i in range(10):
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fixture = self._make_fixture(name='TestImage %d' % (i))
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fixtures.append(fixture)
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ids.append(self.service.create(self.context, fixture)['id'])
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image_metas = self.service.detail(self.context, limit=5)
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self.assertEquals(len(image_metas), 5)
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def test_detail_default_limit(self):
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fixtures = []
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ids = []
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for i in range(10):
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fixture = self._make_fixture(name='TestImage %d' % (i))
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fixtures.append(fixture)
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ids.append(self.service.create(self.context, fixture)['id'])
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image_metas = self.service.detail(self.context)
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for i, meta in enumerate(image_metas):
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self.assertEqual(meta['name'], 'TestImage %d' % (i))
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def test_detail_marker_and_limit(self):
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fixtures = []
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ids = []
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for i in range(10):
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fixture = self._make_fixture(name='TestImage %d' % (i))
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fixtures.append(fixture)
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ids.append(self.service.create(self.context, fixture)['id'])
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image_metas = self.service.detail(self.context, marker=ids[3], limit=5)
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self.assertEquals(len(image_metas), 5)
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i = 4
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for meta in image_metas:
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expected = {
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'id': ids[i],
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'status': None,
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'is_public': None,
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'name': 'TestImage %d' % (i),
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'properties': {},
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'size': None,
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'min_disk': None,
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'min_ram': None,
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'disk_format': None,
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'container_format': None,
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'checksum': None,
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'created_at': self.NOW_DATETIME,
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'updated_at': self.NOW_DATETIME,
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'deleted_at': None,
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'deleted': None,
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'owner': None,
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}
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self.assertThat(meta, matchers.DictMatches(expected))
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i = i + 1
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def test_detail_invalid_marker(self):
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fixtures = []
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ids = []
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for i in range(10):
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fixture = self._make_fixture(name='TestImage %d' % (i))
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fixtures.append(fixture)
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ids.append(self.service.create(self.context, fixture)['id'])
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self.assertRaises(exception.Invalid, self.service.detail,
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self.context, marker='invalidmarker')
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def test_update(self):
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fixture = self._make_fixture(name='test image')
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image = self.service.create(self.context, fixture)
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print image
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image_id = image['id']
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fixture['name'] = 'new image name'
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self.service.update(self.context, image_id, fixture)
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new_image_data = self.service.show(self.context, image_id)
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self.assertEquals('new image name', new_image_data['name'])
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def test_delete(self):
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fixture1 = self._make_fixture(name='test image 1')
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fixture2 = self._make_fixture(name='test image 2')
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fixtures = [fixture1, fixture2]
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num_images = len(self.service.detail(self.context))
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self.assertEquals(0, num_images)
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ids = []
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for fixture in fixtures:
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new_id = self.service.create(self.context, fixture)['id']
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ids.append(new_id)
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num_images = len(self.service.detail(self.context))
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self.assertEquals(2, num_images)
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self.service.delete(self.context, ids[0])
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num_images = len(self.service.detail(self.context))
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self.assertEquals(1, num_images)
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def test_show_passes_through_to_client(self):
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fixture = self._make_fixture(name='image1', is_public=True)
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image_id = self.service.create(self.context, fixture)['id']
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image_meta = self.service.show(self.context, image_id)
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expected = {
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'id': image_id,
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'name': 'image1',
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'is_public': True,
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'size': None,
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'min_disk': None,
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'min_ram': None,
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'disk_format': None,
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'container_format': None,
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'checksum': None,
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'created_at': self.NOW_DATETIME,
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'updated_at': self.NOW_DATETIME,
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'deleted_at': None,
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'deleted': None,
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'status': None,
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'properties': {},
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'owner': None,
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}
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self.assertEqual(image_meta, expected)
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def test_show_raises_when_no_authtoken_in_the_context(self):
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fixture = self._make_fixture(name='image1',
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is_public=False,
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properties={'one': 'two'})
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image_id = self.service.create(self.context, fixture)['id']
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self.context.auth_token = False
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self.assertRaises(exception.ImageNotFound,
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self.service.show,
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self.context,
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image_id)
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def test_detail_passes_through_to_client(self):
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fixture = self._make_fixture(name='image10', is_public=True)
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image_id = self.service.create(self.context, fixture)['id']
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image_metas = self.service.detail(self.context)
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expected = [
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{
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'id': image_id,
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'name': 'image10',
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'is_public': True,
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'size': None,
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'min_disk': None,
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'min_ram': None,
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'disk_format': None,
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'container_format': None,
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'checksum': None,
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'created_at': self.NOW_DATETIME,
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'updated_at': self.NOW_DATETIME,
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'deleted_at': None,
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'deleted': None,
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'status': None,
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'properties': {},
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'owner': None,
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},
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]
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self.assertEqual(image_metas, expected)
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def test_show_makes_datetimes(self):
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fixture = self._make_datetime_fixture()
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image_id = self.service.create(self.context, fixture)['id']
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image_meta = self.service.show(self.context, image_id)
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self.assertEqual(image_meta['created_at'], self.NOW_DATETIME)
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self.assertEqual(image_meta['updated_at'], self.NOW_DATETIME)
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def test_detail_makes_datetimes(self):
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fixture = self._make_datetime_fixture()
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self.service.create(self.context, fixture)
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image_meta = self.service.detail(self.context)[0]
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self.assertEqual(image_meta['created_at'], self.NOW_DATETIME)
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self.assertEqual(image_meta['updated_at'], self.NOW_DATETIME)
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def test_download_with_retries(self):
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tries = [0]
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class MyGlanceStubClient(glance_stubs.StubGlanceClient):
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"""A client that fails the first time, then succeeds."""
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def get(self, image_id):
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if tries[0] == 0:
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tries[0] = 1
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raise glanceclient.exc.ServiceUnavailable('')
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else:
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return {}
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client = MyGlanceStubClient()
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service = self._create_image_service(client)
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image_id = 1 # doesn't matter
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writer = NullWriter()
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# When retries are disabled, we should get an exception
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self.flags(glance_num_retries=0)
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self.assertRaises(exception.GlanceConnectionFailed,
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service.download, self.context, image_id, writer)
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# Now lets enable retries. No exception should happen now.
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tries = [0]
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self.flags(glance_num_retries=1)
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service.download(self.context, image_id, writer)
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def test_client_forbidden_converts_to_imagenotauthed(self):
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class MyGlanceStubClient(glance_stubs.StubGlanceClient):
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"""A client that raises a Forbidden exception."""
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def get(self, image_id):
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raise glanceclient.exc.Forbidden(image_id)
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client = MyGlanceStubClient()
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service = self._create_image_service(client)
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image_id = 1 # doesn't matter
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writer = NullWriter()
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self.assertRaises(exception.ImageNotAuthorized, service.download,
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self.context, image_id, writer)
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def test_client_httpforbidden_converts_to_imagenotauthed(self):
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class MyGlanceStubClient(glance_stubs.StubGlanceClient):
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"""A client that raises a HTTPForbidden exception."""
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def get(self, image_id):
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raise glanceclient.exc.HTTPForbidden(image_id)
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client = MyGlanceStubClient()
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service = self._create_image_service(client)
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image_id = 1 # doesn't matter
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writer = NullWriter()
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self.assertRaises(exception.ImageNotAuthorized, service.download,
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self.context, image_id, writer)
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def test_client_notfound_converts_to_imagenotfound(self):
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class MyGlanceStubClient(glance_stubs.StubGlanceClient):
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"""A client that raises a NotFound exception."""
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def get(self, image_id):
|
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raise glanceclient.exc.NotFound(image_id)
|
|
|
|
client = MyGlanceStubClient()
|
|
service = self._create_image_service(client)
|
|
image_id = 1 # doesn't matter
|
|
writer = NullWriter()
|
|
self.assertRaises(exception.ImageNotFound, service.download,
|
|
self.context, image_id, writer)
|
|
|
|
def test_client_httpnotfound_converts_to_imagenotfound(self):
|
|
class MyGlanceStubClient(glance_stubs.StubGlanceClient):
|
|
"""A client that raises a HTTPNotFound exception."""
|
|
def get(self, image_id):
|
|
raise glanceclient.exc.HTTPNotFound(image_id)
|
|
|
|
client = MyGlanceStubClient()
|
|
service = self._create_image_service(client)
|
|
image_id = 1 # doesn't matter
|
|
writer = NullWriter()
|
|
self.assertRaises(exception.ImageNotFound, service.download,
|
|
self.context, image_id, writer)
|
|
|
|
def test_glance_client_image_id(self):
|
|
fixture = self._make_fixture(name='test image')
|
|
image_id = self.service.create(self.context, fixture)['id']
|
|
(service, same_id) = glance.get_remote_image_service(
|
|
self.context, image_id)
|
|
self.assertEquals(same_id, image_id)
|
|
|
|
def test_glance_client_image_ref(self):
|
|
fixture = self._make_fixture(name='test image')
|
|
image_id = self.service.create(self.context, fixture)['id']
|
|
image_url = 'http://something-less-likely/%s' % image_id
|
|
(service, same_id) = glance.get_remote_image_service(
|
|
self.context, image_url)
|
|
self.assertEquals(same_id, image_id)
|
|
self.assertEquals(service._client.host,
|
|
'something-less-likely')
|
|
|
|
|
|
def _create_failing_glance_client(info):
|
|
class MyGlanceStubClient(glance_stubs.StubGlanceClient):
|
|
"""A client that fails the first time, then succeeds."""
|
|
def get(self, image_id):
|
|
info['num_calls'] += 1
|
|
if info['num_calls'] == 1:
|
|
raise glanceclient.exc.ServiceUnavailable('')
|
|
return {}
|
|
|
|
return MyGlanceStubClient()
|
|
|
|
|
|
class TestGlanceClientWrapper(test.TestCase):
|
|
|
|
def setUp(self):
|
|
super(TestGlanceClientWrapper, self).setUp()
|
|
# host1 has no scheme, which is http by default
|
|
self.flags(glance_api_servers=['host1:9292', 'https://host2:9293',
|
|
'http://host3:9294'])
|
|
|
|
# Make the test run fast
|
|
def _fake_sleep(secs):
|
|
pass
|
|
self.stubs.Set(time, 'sleep', _fake_sleep)
|
|
|
|
def test_static_client_without_retries(self):
|
|
self.flags(glance_num_retries=0)
|
|
|
|
ctxt = context.RequestContext('fake', 'fake')
|
|
fake_host = 'host4'
|
|
fake_port = 9295
|
|
fake_use_ssl = False
|
|
|
|
info = {'num_calls': 0}
|
|
|
|
def _fake_create_glance_client(context, host, port, use_ssl, version):
|
|
self.assertEqual(host, fake_host)
|
|
self.assertEqual(port, fake_port)
|
|
self.assertEqual(use_ssl, fake_use_ssl)
|
|
return _create_failing_glance_client(info)
|
|
|
|
self.stubs.Set(glance, '_create_glance_client',
|
|
_fake_create_glance_client)
|
|
|
|
client = glance.GlanceClientWrapper(context=ctxt,
|
|
host=fake_host, port=fake_port, use_ssl=fake_use_ssl)
|
|
self.assertRaises(exception.GlanceConnectionFailed,
|
|
client.call, ctxt, 1, 'get', 'meow')
|
|
self.assertEqual(info['num_calls'], 1)
|
|
|
|
def test_default_client_without_retries(self):
|
|
self.flags(glance_num_retries=0)
|
|
|
|
ctxt = context.RequestContext('fake', 'fake')
|
|
|
|
info = {'num_calls': 0,
|
|
'host': 'host1',
|
|
'port': 9292,
|
|
'use_ssl': False}
|
|
|
|
# Leave the list in a known-order
|
|
def _fake_shuffle(servers):
|
|
pass
|
|
|
|
def _fake_create_glance_client(context, host, port, use_ssl, version):
|
|
self.assertEqual(host, info['host'])
|
|
self.assertEqual(port, info['port'])
|
|
self.assertEqual(use_ssl, info['use_ssl'])
|
|
return _create_failing_glance_client(info)
|
|
|
|
self.stubs.Set(random, 'shuffle', _fake_shuffle)
|
|
self.stubs.Set(glance, '_create_glance_client',
|
|
_fake_create_glance_client)
|
|
|
|
client = glance.GlanceClientWrapper()
|
|
client2 = glance.GlanceClientWrapper()
|
|
self.assertRaises(exception.GlanceConnectionFailed,
|
|
client.call, ctxt, 1, 'get', 'meow')
|
|
self.assertEqual(info['num_calls'], 1)
|
|
|
|
info = {'num_calls': 0,
|
|
'host': 'host2',
|
|
'port': 9293,
|
|
'use_ssl': True}
|
|
|
|
def _fake_shuffle2(servers):
|
|
# fake shuffle in a known manner
|
|
servers.append(servers.pop(0))
|
|
|
|
self.stubs.Set(random, 'shuffle', _fake_shuffle2)
|
|
|
|
self.assertRaises(exception.GlanceConnectionFailed,
|
|
client2.call, ctxt, 1, 'get', 'meow')
|
|
self.assertEqual(info['num_calls'], 1)
|
|
|
|
def test_static_client_with_retries(self):
|
|
self.flags(glance_num_retries=1)
|
|
|
|
ctxt = context.RequestContext('fake', 'fake')
|
|
fake_host = 'host4'
|
|
fake_port = 9295
|
|
fake_use_ssl = False
|
|
|
|
info = {'num_calls': 0}
|
|
|
|
def _fake_create_glance_client(context, host, port, use_ssl, version):
|
|
self.assertEqual(host, fake_host)
|
|
self.assertEqual(port, fake_port)
|
|
self.assertEqual(use_ssl, fake_use_ssl)
|
|
return _create_failing_glance_client(info)
|
|
|
|
self.stubs.Set(glance, '_create_glance_client',
|
|
_fake_create_glance_client)
|
|
|
|
client = glance.GlanceClientWrapper(context=ctxt,
|
|
host=fake_host, port=fake_port, use_ssl=fake_use_ssl)
|
|
client.call(ctxt, 1, 'get', 'meow')
|
|
self.assertEqual(info['num_calls'], 2)
|
|
|
|
def test_default_client_with_retries(self):
|
|
self.flags(glance_num_retries=1)
|
|
|
|
ctxt = context.RequestContext('fake', 'fake')
|
|
|
|
info = {'num_calls': 0,
|
|
'host0': 'host1',
|
|
'port0': 9292,
|
|
'use_ssl0': False,
|
|
'host1': 'host2',
|
|
'port1': 9293,
|
|
'use_ssl1': True}
|
|
|
|
# Leave the list in a known-order
|
|
def _fake_shuffle(servers):
|
|
pass
|
|
|
|
def _fake_create_glance_client(context, host, port, use_ssl, version):
|
|
attempt = info['num_calls']
|
|
self.assertEqual(host, info['host%s' % attempt])
|
|
self.assertEqual(port, info['port%s' % attempt])
|
|
self.assertEqual(use_ssl, info['use_ssl%s' % attempt])
|
|
return _create_failing_glance_client(info)
|
|
|
|
self.stubs.Set(random, 'shuffle', _fake_shuffle)
|
|
self.stubs.Set(glance, '_create_glance_client',
|
|
_fake_create_glance_client)
|
|
|
|
client = glance.GlanceClientWrapper()
|
|
client2 = glance.GlanceClientWrapper()
|
|
client.call(ctxt, 1, 'get', 'meow')
|
|
self.assertEqual(info['num_calls'], 2)
|
|
|
|
def _fake_shuffle2(servers):
|
|
# fake shuffle in a known manner
|
|
servers.append(servers.pop(0))
|
|
|
|
self.stubs.Set(random, 'shuffle', _fake_shuffle2)
|
|
|
|
info = {'num_calls': 0,
|
|
'host0': 'host2',
|
|
'port0': 9293,
|
|
'use_ssl0': True,
|
|
'host1': 'host3',
|
|
'port1': 9294,
|
|
'use_ssl1': False}
|
|
|
|
client2.call(ctxt, 1, 'get', 'meow')
|
|
self.assertEqual(info['num_calls'], 2)
|
|
|
|
|
|
class TestGlanceUrl(test.TestCase):
|
|
|
|
def test_generate_glance_http_url(self):
|
|
generated_url = glance.generate_glance_url()
|
|
http_url = "http://%s:%d" % (CONF.glance_host, CONF.glance_port)
|
|
self.assertEqual(generated_url, http_url)
|
|
|
|
def test_generate_glance_https_url(self):
|
|
self.flags(glance_protocol="https")
|
|
generated_url = glance.generate_glance_url()
|
|
https_url = "https://%s:%d" % (CONF.glance_host, CONF.glance_port)
|
|
self.assertEqual(generated_url, https_url)
|