167 lines
5.0 KiB
Python
167 lines
5.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 OpenStack Foundation
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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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"""
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Functional tests for the RBD store interface.
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Set the GLANCE_TEST_RBD_CONF environment variable to the location
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of a Glance config that defines how to connect to a functional
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RBD backend. This backend must be running Ceph Bobtail (0.56) or later.
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"""
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import ConfigParser
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import os
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import StringIO
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import uuid
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import oslo.config.cfg
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import testtools
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from glance.common import exception
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import glance.store.rbd
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import glance.tests.functional.store as store_tests
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try:
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import rados
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import rbd
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except ImportError:
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rados = None
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def read_config(path):
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cp = ConfigParser.RawConfigParser()
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cp.read(path)
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return cp
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def parse_config(config):
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out = {}
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options = [
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'rbd_store_chunk_size',
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'rbd_store_pool',
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'rbd_store_user',
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'rbd_store_ceph_conf',
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]
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for option in options:
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out[option] = config.defaults()[option]
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return out
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class TestRBDStore(store_tests.BaseTestCase, testtools.TestCase):
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store_cls_path = 'glance.store.rbd.Store'
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store_cls = glance.store.rbd.Store
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store_name = 'rbd'
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def setUp(self):
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config_path = os.environ.get('GLANCE_TEST_RBD_CONF')
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if not config_path:
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msg = "GLANCE_TEST_RBD_CONF environ not set."
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self.skipTest(msg)
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oslo.config.cfg.CONF(args=[], default_config_files=[config_path])
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raw_config = read_config(config_path)
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config = parse_config(raw_config)
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if rados is None:
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self.skipTest("rados python library not found")
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rados_client = rados.Rados(conffile=config['rbd_store_ceph_conf'],
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rados_id=config['rbd_store_user'])
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try:
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rados_client.connect()
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except rados.Error as e:
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self.skipTest("Failed to connect to RADOS: %s" % e)
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try:
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rados_client.create_pool(config['rbd_store_pool'])
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except rados.Error as e:
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rados_client.shutdown()
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self.skipTest("Failed to create pool: %s")
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self.rados_client = rados_client
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self.rbd_config = config
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super(TestRBDStore, self).setUp()
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def tearDown(self):
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self.rados_client.delete_pool(self.rbd_config['rbd_store_pool'])
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self.rados_client.shutdown()
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super(TestRBDStore, self).tearDown()
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def get_store(self, **kwargs):
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store = glance.store.rbd.Store(context=kwargs.get('context'))
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store.configure()
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store.configure_add()
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return store
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def stash_image(self, image_id, image_data):
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fsid = self.rados_client.get_fsid()
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pool = self.rbd_config['rbd_store_pool']
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librbd = rbd.RBD()
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# image_id must not be unicode since librbd doesn't handle it
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image_id = str(image_id)
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snap_name = 'snap'
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with self.rados_client.open_ioctx(pool) as ioctx:
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librbd.create(ioctx, image_id, len(image_data), old_format=False,
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features=rbd.RBD_FEATURE_LAYERING)
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with rbd.Image(ioctx, image_id) as image:
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image.write(image_data, 0)
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image.create_snap(snap_name)
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return 'rbd://%s/%s/%s/%s' % (fsid, pool, image_id, snap_name)
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def test_unicode(self):
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# librbd does not handle unicode, so make sure
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# all paths through the rbd store convert a unicode image id
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# and uri to ascii before passing it to librbd.
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store = self.get_store()
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image_id = unicode(str(uuid.uuid4()))
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image_size = 300
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image_data = StringIO.StringIO('X' * image_size)
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image_checksum = '41757066eaff7c4c6c965556b4d3c6c5'
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uri, add_size, add_checksum = store.add(image_id,
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image_data,
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image_size)
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uri = unicode(uri)
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self.assertEqual(image_size, add_size)
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self.assertEqual(image_checksum, add_checksum)
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location = glance.store.location.Location(
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self.store_name,
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store.get_store_location_class(),
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uri=uri,
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image_id=image_id)
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self.assertEqual(image_size, store.get_size(location))
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get_iter, get_size = store.get(location)
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self.assertEqual(image_size, get_size)
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self.assertEqual('X' * image_size, ''.join(get_iter))
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store.delete(location)
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self.assertRaises(exception.NotFound, store.get, location)
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