Merge "Remove sheepdog store driver"

This commit is contained in:
Zuul 2019-12-19 00:02:39 +00:00 committed by Gerrit Code Review
commit b242a2fabf
7 changed files with 1 additions and 922 deletions

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@ -45,12 +45,3 @@ below the table of supported drivers and maintainers:
- Sabari Murugesan
- smurugesan@vmware.com
- sabari
* - Sheepdog
- DEPRECATED
- YAMADA Hideki
- yamada.hideki@lab.ntt.co.jp
- yamada-h
.. warning::
The Sheepdog driver is subject to removal early in the 'U'
development cycle.

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@ -1,466 +0,0 @@
# Copyright 2013 Taobao Inc.
# Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Storage backend for Sheepdog storage system"""
import hashlib
import logging
import six
from oslo_concurrency import processutils
from oslo_config import cfg
from oslo_utils import excutils
from oslo_utils import units
import glance_store
from glance_store import capabilities
from glance_store.common import utils
import glance_store.driver
from glance_store import exceptions
from glance_store.i18n import _
import glance_store.location
LOG = logging.getLogger(__name__)
DEFAULT_ADDR = '127.0.0.1'
DEFAULT_PORT = 7000
DEFAULT_CHUNKSIZE = 64 # in MiB
_SHEEPDOG_OPTS = [
cfg.IntOpt('sheepdog_store_chunk_size',
min=1,
default=DEFAULT_CHUNKSIZE,
deprecated_for_removal=True,
deprecated_since='Train',
deprecated_reason="""
The Sheepdog project is no longer actively maintained. The
Sheepdog driver is scheduled for removal in the 'U' development
cycle.
""",
help="""
Chunk size for images to be stored in Sheepdog data store.
Provide an integer value representing the size in mebibyte
(1048576 bytes) to chunk Glance images into. The default
chunk size is 64 mebibytes.
When using Sheepdog distributed storage system, the images are
chunked into objects of this size and then stored across the
distributed data store to use for Glance.
Chunk sizes, if a power of two, help avoid fragmentation and
enable improved performance.
Possible values:
* Positive integer value representing size in mebibytes.
Related Options:
* None
"""),
cfg.PortOpt('sheepdog_store_port',
default=DEFAULT_PORT,
deprecated_for_removal=True,
deprecated_since='Train',
deprecated_reason="""
The Sheepdog project is no longer actively maintained. The
Sheepdog driver is scheduled for removal in the 'U' development
cycle.
""",
help="""
Port number on which the sheep daemon will listen.
Provide an integer value representing a valid port number on
which you want the Sheepdog daemon to listen on. The default
port is 7000.
The Sheepdog daemon, also called 'sheep', manages the storage
in the distributed cluster by writing objects across the storage
network. It identifies and acts on the messages it receives on
the port number set using ``sheepdog_store_port`` option to store
chunks of Glance images.
Possible values:
* A valid port number (0 to 65535)
Related Options:
* sheepdog_store_address
"""),
cfg.HostAddressOpt('sheepdog_store_address',
default=DEFAULT_ADDR,
deprecated_for_removal=True,
deprecated_since='Train',
deprecated_reason="""
The Sheepdog project is no longer actively maintained. The
Sheepdog driver is scheduled for removal in the 'U' development
cycle.
""",
help="""
Address to bind the Sheepdog daemon to.
Provide a string value representing the address to bind the
Sheepdog daemon to. The default address set for the 'sheep'
is 127.0.0.1.
The Sheepdog daemon, also called 'sheep', manages the storage
in the distributed cluster by writing objects across the storage
network. It identifies and acts on the messages directed to the
address set using ``sheepdog_store_address`` option to store
chunks of Glance images.
Possible values:
* A valid IPv4 address
* A valid IPv6 address
* A valid hostname
Related Options:
* sheepdog_store_port
"""),
]
class SheepdogImage(object):
"""Class describing an image stored in Sheepdog storage."""
def __init__(self, addr, port, name, chunk_size):
self.addr = addr
self.port = port
self.name = name
self.chunk_size = chunk_size
LOG.warning("The Sheepdog driver is deprecated and will be removed "
"in the 'U' release.")
def _run_command(self, command, data, *params):
cmd = ['collie', 'vdi']
cmd.extend(command.split(' '))
cmd.extend(['-a', self.addr, '-p', self.port, self.name])
cmd.extend(params)
try:
return processutils.execute(
*cmd, process_input=data)[0]
except processutils.ProcessExecutionError as exc:
LOG.error(exc)
raise glance_store.BackendException(exc)
def get_size(self):
"""
Return the size of the this image
Sheepdog Usage: collie vdi list -r -a address -p port image
"""
out = self._run_command("list -r", None)
return int(out.split(' ')[3])
def read(self, offset, count):
"""
Read up to 'count' bytes from this image starting at 'offset' and
return the data.
Sheepdog Usage: collie vdi read -a address -p port image offset len
"""
return self._run_command("read", None, str(offset), str(count))
def write(self, data, offset, count):
"""
Write up to 'count' bytes from the data to this image starting at
'offset'
Sheepdog Usage: collie vdi write -a address -p port image offset len
"""
self._run_command("write", data, str(offset), str(count))
def create(self, size):
"""
Create this image in the Sheepdog cluster with size 'size'.
Sheepdog Usage: collie vdi create -a address -p port image size
"""
if not isinstance(size, (six.integer_types, float)):
raise exceptions.Forbidden("Size is not a number")
self._run_command("create", None, str(size))
def resize(self, size):
"""Resize this image in the Sheepdog cluster with size 'size'.
Sheepdog Usage: collie vdi create -a address -p port image size
"""
self._run_command("resize", None, str(size))
def delete(self):
"""
Delete this image in the Sheepdog cluster
Sheepdog Usage: collie vdi delete -a address -p port image
"""
self._run_command("delete", None)
def exist(self):
"""
Check if this image exists in the Sheepdog cluster via 'list' command
Sheepdog Usage: collie vdi list -r -a address -p port image
"""
out = self._run_command("list -r", None)
if not out:
return False
else:
return True
class StoreLocation(glance_store.location.StoreLocation):
"""
Class describing a Sheepdog URI. This is of the form:
sheepdog://addr:port:image
"""
def process_specs(self):
self.image = self.specs.get('image')
self.addr = self.specs.get('addr')
self.port = self.specs.get('port')
def get_uri(self):
return "sheepdog://%(addr)s:%(port)d:%(image)s" % {
'addr': self.addr,
'port': self.port,
'image': self.image}
def parse_uri(self, uri):
valid_schema = 'sheepdog://'
self.validate_schemas(uri, valid_schemas=(valid_schema,))
pieces = uri[len(valid_schema):].split(':')
if len(pieces) == 3:
self.image = pieces[2]
self.port = int(pieces[1])
self.addr = pieces[0]
# This is used for backwards compatibility.
else:
if self.backend_group:
store_conf = getattr(self.conf, self.backend_group)
else:
store_conf = self.conf.glance_store
self.image = pieces[0]
self.port = store_conf.sheepdog_store_port
self.addr = store_conf.sheepdog_store_address
class ImageIterator(object):
"""
Reads data from an Sheepdog image, one chunk at a time.
"""
def __init__(self, image):
self.image = image
def __iter__(self):
image = self.image
total = left = image.get_size()
while left > 0:
length = min(image.chunk_size, left)
data = image.read(total - left, length)
left -= len(data)
yield data
return
class Store(glance_store.driver.Store):
"""Sheepdog backend adapter."""
_CAPABILITIES = (capabilities.BitMasks.RW_ACCESS |
capabilities.BitMasks.DRIVER_REUSABLE)
OPTIONS = _SHEEPDOG_OPTS
EXAMPLE_URL = "sheepdog://addr:port:image"
def get_schemes(self):
return ('sheepdog',)
def _set_url_prefix(self):
self._url_prefix = "%s://%s:%s:" % (
'sheepdog', self.addr, self.port)
def configure_add(self):
"""
Configure the Store to use the stored configuration options
Any store that needs special configuration should implement
this method. If the store was not able to successfully configure
itself, it should raise `exceptions.BadStoreConfiguration`
"""
if self.backend_group:
store_conf = getattr(self.conf, self.backend_group)
else:
store_conf = self.conf.glance_store
try:
chunk_size = store_conf.sheepdog_store_chunk_size
self.chunk_size = chunk_size * units.Mi
self.READ_CHUNKSIZE = self.chunk_size
self.WRITE_CHUNKSIZE = self.READ_CHUNKSIZE
self.addr = store_conf.sheepdog_store_address
self.port = store_conf.sheepdog_store_port
except cfg.ConfigFileValueError as e:
reason = _("Error in store configuration: %s") % e
LOG.error(reason)
raise exceptions.BadStoreConfiguration(store_name='sheepdog',
reason=reason)
try:
processutils.execute("collie")
except processutils.ProcessExecutionError as exc:
reason = _("Error in store configuration: %s") % exc
LOG.error(reason)
raise exceptions.BadStoreConfiguration(store_name='sheepdog',
reason=reason)
if self.backend_group:
self._set_url_prefix()
@capabilities.check
def get(self, location, offset=0, chunk_size=None, context=None):
"""
Takes a `glance_store.location.Location` object that indicates
where to find the image file, and returns a generator for reading
the image file
:param location: `glance_store.location.Location` object, supplied
from glance_store.location.get_location_from_uri()
:raises: `glance_store.exceptions.NotFound` if image does not exist
"""
loc = location.store_location
image = SheepdogImage(loc.addr, loc.port, loc.image,
self.READ_CHUNKSIZE)
if not image.exist():
raise exceptions.NotFound(_("Sheepdog image %s does not exist")
% image.name)
return (ImageIterator(image), image.get_size())
def get_size(self, location, context=None):
"""
Takes a `glance_store.location.Location` object that indicates
where to find the image file and returns the image size
:param location: `glance_store.location.Location` object, supplied
from glance_store.location.get_location_from_uri()
:raises: `glance_store.exceptions.NotFound` if image does not exist
:rtype: int
"""
loc = location.store_location
image = SheepdogImage(loc.addr, loc.port, loc.image,
self.READ_CHUNKSIZE)
if not image.exist():
raise exceptions.NotFound(_("Sheepdog image %s does not exist")
% image.name)
return image.get_size()
@glance_store.driver.back_compat_add
@capabilities.check
def add(self, image_id, image_file, image_size, hashing_algo, context=None,
verifier=None):
"""
Stores an image file with supplied identifier to the backend
storage system and returns a tuple containing information
about the stored image.
:param image_id: The opaque image identifier
:param image_file: The image data to write, as a file-like object
:param image_size: The size of the image data to write, in bytes
:param hashing_algo: A hashlib algorithm identifier (string)
:param context: A context object
:param verifier: An object used to verify signatures for images
:returns: tuple of: (1) URL in backing store, (2) bytes written,
(3) checksum, (4) multihash value, and (5) a dictionary
with storage system specific information
:raises: `glance_store.exceptions.Duplicate` if the image already
exists
"""
image = SheepdogImage(self.addr, self.port, image_id,
self.WRITE_CHUNKSIZE)
if image.exist():
raise exceptions.Duplicate(_("Sheepdog image %s already exists")
% image_id)
location = StoreLocation({
'image': image_id,
'addr': self.addr,
'port': self.port
}, self.conf, backend_group=self.backend_group)
image.create(image_size)
try:
offset = 0
os_hash_value = hashlib.new(str(hashing_algo))
checksum = hashlib.md5()
chunks = utils.chunkreadable(image_file, self.WRITE_CHUNKSIZE)
for chunk in chunks:
chunk_length = len(chunk)
# If the image size provided is zero we need to do
# a resize for the amount we are writing. This will
# be slower so setting a higher chunk size may
# speed things up a bit.
if image_size == 0:
image.resize(offset + chunk_length)
image.write(chunk, offset, chunk_length)
offset += chunk_length
os_hash_value.update(chunk)
checksum.update(chunk)
if verifier:
verifier.update(chunk)
except Exception:
# Note(zhiyan): clean up already received data when
# error occurs such as ImageSizeLimitExceeded exceptions.
with excutils.save_and_reraise_exception():
image.delete()
metadata = {}
if self.backend_group:
metadata['store'] = u"%s" % self.backend_group
return (location.get_uri(),
offset,
checksum.hexdigest(),
os_hash_value.hexdigest(),
metadata)
@capabilities.check
def delete(self, location, context=None):
"""
Takes a `glance_store.location.Location` object that indicates
where to find the image file to delete
:param location: `glance_store.location.Location` object, supplied
from glance_store.location.get_location_from_uri()
:raises: NotFound if image does not exist
"""
loc = location.store_location
image = SheepdogImage(loc.addr, loc.port, loc.image,
self.WRITE_CHUNKSIZE)
if not image.exist():
raise exceptions.NotFound(_("Sheepdog image %s does not exist") %
loc.image)
image.delete()

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@ -57,7 +57,6 @@ Possible values:
* http
* swift
* rbd
* sheepdog
* cinder
* vmware
@ -69,7 +68,7 @@ Related Options:
default='file',
choices=('file', 'filesystem', 'http', 'https', 'swift',
'swift+http', 'swift+https', 'swift+config', 'rbd',
'sheepdog', 'cinder', 'vsphere'),
'cinder', 'vsphere'),
deprecated_for_removal=True,
deprecated_since='Rocky',
deprecated_reason="""
@ -101,7 +100,6 @@ Possible values:
* swift+https
* swift+config
* rbd
* sheepdog
* cinder
* vsphere

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@ -1,221 +0,0 @@
# Copyright 2018 RedHat Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
from oslo_concurrency import processutils
from oslo_config import cfg
from oslo_utils import units
import six
import glance_store as store
from glance_store._drivers import sheepdog
from glance_store import exceptions
from glance_store import location
from glance_store.tests import base
from glance_store.tests.unit import test_store_capabilities as test_cap
class TestSheepdogMultiStore(base.MultiStoreBaseTest,
test_cap.TestStoreCapabilitiesChecking):
# NOTE(flaper87): temporary until we
# can move to a fully-local lib.
# (Swift store's fault)
_CONF = cfg.ConfigOpts()
def setUp(self):
"""Establish a clean test environment."""
super(TestSheepdogMultiStore, self).setUp()
enabled_backends = {
"sheepdog1": "sheepdog",
"sheepdog2": "sheepdog",
}
self.conf = self._CONF
self.conf(args=[])
self.conf.register_opt(cfg.DictOpt('enabled_backends'))
self.config(enabled_backends=enabled_backends)
store.register_store_opts(self.conf)
self.config(default_backend='sheepdog1', group='glance_store')
# mock sheepdog commands
def _fake_execute(*cmd, **kwargs):
pass
execute = mock.patch.object(processutils, 'execute').start()
execute.side_effect = _fake_execute
self.addCleanup(execute.stop)
# Ensure stores + locations cleared
location.SCHEME_TO_CLS_BACKEND_MAP = {}
store.create_multi_stores(self.conf)
self.addCleanup(setattr, location, 'SCHEME_TO_CLS_BACKEND_MAP',
dict())
self.addCleanup(self.conf.reset)
self.store = sheepdog.Store(self.conf, backend='sheepdog1')
self.store.configure()
self.store_specs = {'image': '6bd59e6e-c410-11e5-ab67-0a73f1fda51b',
'addr': '127.0.0.1',
'port': 7000}
def test_location_url_prefix_is_set(self):
expected_url_prefix = "sheepdog://127.0.0.1:7000:"
self.assertEqual(expected_url_prefix, self.store.url_prefix)
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'create')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_add_image(self, mock_exist, mock_create, mock_write):
data = six.BytesIO(b'xx')
mock_exist.return_value = False
(uri, size, checksum, loc) = self.store.add('fake_image_id', data, 2)
self.assertEqual("sheepdog1", loc["store"])
mock_exist.assert_called_once_with()
mock_create.assert_called_once_with(2)
mock_write.assert_called_once_with(b'xx', 0, 2)
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'create')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_add_image_to_different_backend(self, mock_exist,
mock_create, mock_write):
self.store = sheepdog.Store(self.conf, backend='sheepdog2')
self.store.configure()
data = six.BytesIO(b'xx')
mock_exist.return_value = False
(uri, size, checksum, loc) = self.store.add('fake_image_id', data, 2)
self.assertEqual("sheepdog2", loc["store"])
mock_exist.assert_called_once_with()
mock_create.assert_called_once_with(2)
mock_write.assert_called_once_with(b'xx', 0, 2)
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_add_bad_size_with_image(self, mock_exist, mock_write):
data = six.BytesIO(b'xx')
mock_exist.return_value = False
self.assertRaises(exceptions.Forbidden, self.store.add,
'fake_image_id', data, 'test')
mock_exist.assert_called_once_with()
self.assertEqual(mock_write.call_count, 0)
@mock.patch.object(sheepdog.SheepdogImage, 'delete')
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'create')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_cleanup_when_add_image_exception(self, mock_exist, mock_create,
mock_write, mock_delete):
data = six.BytesIO(b'xx')
mock_exist.return_value = False
mock_write.side_effect = exceptions.BackendException
self.assertRaises(exceptions.BackendException, self.store.add,
'fake_image_id', data, 2)
mock_exist.assert_called_once_with()
mock_create.assert_called_once_with(2)
mock_write.assert_called_once_with(b'xx', 0, 2)
mock_delete.assert_called_once_with()
def test_add_duplicate_image(self):
def _fake_run_command(command, data, *params):
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
data = six.BytesIO(b'xx')
self.assertRaises(exceptions.Duplicate, self.store.add,
'fake_image_id', data, 2)
def test_get(self):
def _fake_run_command(command, data, *params):
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
loc = location.Location('test_sheepdog_store',
sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs,
backend='sheepdog1')
ret = self.store.get(loc)
self.assertEqual(1000, ret[1])
def test_partial_get(self):
loc = location.Location('test_sheepdog_store', sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs,
backend='sheepdog1')
self.assertRaises(exceptions.StoreRandomGetNotSupported,
self.store.get, loc, chunk_size=1)
def test_get_size(self):
def _fake_run_command(command, data, *params):
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
loc = location.Location('test_sheepdog_store',
sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs,
backend='sheepdog1')
ret = self.store.get_size(loc)
self.assertEqual(1000, ret)
def test_delete(self):
called_commands = []
def _fake_run_command(command, data, *params):
called_commands.append(command)
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
loc = location.Location('test_sheepdog_store',
sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs,
backend='sheepdog1')
self.store.delete(loc)
self.assertEqual(['list -r', 'delete'], called_commands)
def test_add_with_verifier(self):
"""Test that 'verifier.update' is called when verifier is provided."""
verifier = mock.MagicMock(name='mock_verifier')
self.store.chunk_size = units.Ki
image_id = 'fake_image_id'
file_size = units.Ki # 1K
file_contents = b"*" * file_size
image_file = six.BytesIO(file_contents)
def _fake_run_command(command, data, *params):
pass
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
(uri, size, checksum, loc) = self.store.add(
image_id, image_file, file_size, verifier=verifier)
self.assertEqual("sheepdog1", loc["store"])
verifier.update.assert_called_with(file_contents)

View File

@ -98,9 +98,6 @@ class OptsTestCase(base.StoreBaseTest):
'rados_connect_timeout',
'rootwrap_config',
'swift_store_expire_soon_interval',
'sheepdog_store_address',
'sheepdog_store_chunk_size',
'sheepdog_store_port',
'swift_store_admin_tenants',
'swift_store_auth_address',
'swift_store_cacert',

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@ -1,218 +0,0 @@
# Copyright 2013 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import hashlib
import mock
from oslo_concurrency import processutils
from oslo_utils import units
import oslotest
import six
from glance_store._drivers import sheepdog
from glance_store import exceptions
from glance_store import location
from glance_store.tests import base
from glance_store.tests.unit import test_store_capabilities
class TestStoreLocation(oslotest.base.BaseTestCase):
def test_process_spec(self):
mock_conf = mock.Mock()
fake_spec = {
'image': '6bd59e6e-c410-11e5-ab67-0a73f1fda51b',
'addr': '127.0.0.1',
'port': 7000,
}
loc = sheepdog.StoreLocation(fake_spec, mock_conf)
self.assertEqual(fake_spec['image'], loc.image)
self.assertEqual(fake_spec['addr'], loc.addr)
self.assertEqual(fake_spec['port'], loc.port)
def test_parse_uri(self):
mock_conf = mock.Mock()
fake_uri = ('sheepdog://127.0.0.1:7000'
':6bd59e6e-c410-11e5-ab67-0a73f1fda51b')
loc = sheepdog.StoreLocation({}, mock_conf)
loc.parse_uri(fake_uri)
self.assertEqual('6bd59e6e-c410-11e5-ab67-0a73f1fda51b', loc.image)
self.assertEqual('127.0.0.1', loc.addr)
self.assertEqual(7000, loc.port)
class TestSheepdogImage(oslotest.base.BaseTestCase):
@mock.patch.object(processutils, 'execute')
def test_run_command(self, mock_execute):
image = sheepdog.SheepdogImage(
'127.0.0.1', 7000, '6bd59e6e-c410-11e5-ab67-0a73f1fda51b',
sheepdog.DEFAULT_CHUNKSIZE,
)
image._run_command('create', None)
expected_cmd = (
'collie', 'vdi', 'create', '-a', '127.0.0.1', '-p', 7000,
'6bd59e6e-c410-11e5-ab67-0a73f1fda51b',
)
actual_cmd = mock_execute.call_args[0]
self.assertEqual(expected_cmd, actual_cmd)
class TestSheepdogStore(base.StoreBaseTest,
test_store_capabilities.TestStoreCapabilitiesChecking):
def setUp(self):
"""Establish a clean test environment."""
super(TestSheepdogStore, self).setUp()
def _fake_execute(*cmd, **kwargs):
pass
self.config(default_store='sheepdog',
group='glance_store')
execute = mock.patch.object(processutils, 'execute').start()
execute.side_effect = _fake_execute
self.addCleanup(execute.stop)
self.store = sheepdog.Store(self.conf)
self.store.configure()
self.store_specs = {'image': '6bd59e6e-c410-11e5-ab67-0a73f1fda51b',
'addr': '127.0.0.1',
'port': 7000}
self.hash_algo = 'sha256'
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'create')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_add_image(self, mock_exist, mock_create, mock_write):
content = b'xx'
data = six.BytesIO(content)
mock_exist.return_value = False
expected_checksum = hashlib.md5(content).hexdigest()
expected_multihash = hashlib.sha256(content).hexdigest()
(uri, size, checksum, multihash, loc) = self.store.add(
'fake_image_id', data, 2, self.hash_algo)
mock_exist.assert_called_once_with()
mock_create.assert_called_once_with(2)
mock_write.assert_called_once_with(b'xx', 0, 2)
self.assertEqual(expected_checksum, checksum)
self.assertEqual(expected_multihash, multihash)
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_add_bad_size_with_image(self, mock_exist, mock_write):
data = six.BytesIO(b'xx')
mock_exist.return_value = False
self.assertRaises(exceptions.Forbidden, self.store.add,
'fake_image_id', data, 'test', self.hash_algo)
mock_exist.assert_called_once_with()
self.assertEqual(mock_write.call_count, 0)
@mock.patch.object(sheepdog.SheepdogImage, 'delete')
@mock.patch.object(sheepdog.SheepdogImage, 'write')
@mock.patch.object(sheepdog.SheepdogImage, 'create')
@mock.patch.object(sheepdog.SheepdogImage, 'exist')
def test_cleanup_when_add_image_exception(self, mock_exist, mock_create,
mock_write, mock_delete):
data = six.BytesIO(b'xx')
mock_exist.return_value = False
mock_write.side_effect = exceptions.BackendException
self.assertRaises(exceptions.BackendException, self.store.add,
'fake_image_id', data, 2, self.hash_algo)
mock_exist.assert_called_once_with()
mock_create.assert_called_once_with(2)
mock_write.assert_called_once_with(b'xx', 0, 2)
mock_delete.assert_called_once_with()
def test_add_duplicate_image(self):
def _fake_run_command(command, data, *params):
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
data = six.BytesIO(b'xx')
self.assertRaises(exceptions.Duplicate, self.store.add,
'fake_image_id', data, 2, self.hash_algo)
def test_get(self):
def _fake_run_command(command, data, *params):
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
loc = location.Location('test_sheepdog_store',
sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs)
ret = self.store.get(loc)
self.assertEqual(1000, ret[1])
def test_partial_get(self):
loc = location.Location('test_sheepdog_store', sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs)
self.assertRaises(exceptions.StoreRandomGetNotSupported,
self.store.get, loc, chunk_size=1)
def test_get_size(self):
def _fake_run_command(command, data, *params):
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
loc = location.Location('test_sheepdog_store',
sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs)
ret = self.store.get_size(loc)
self.assertEqual(1000, ret)
def test_delete(self):
called_commands = []
def _fake_run_command(command, data, *params):
called_commands.append(command)
if command == "list -r":
return "= fake_volume 0 1000"
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
loc = location.Location('test_sheepdog_store',
sheepdog.StoreLocation,
self.conf, store_specs=self.store_specs)
self.store.delete(loc)
self.assertEqual(['list -r', 'delete'], called_commands)
def test_add_with_verifier(self):
"""Test that 'verifier.update' is called when verifier is provided."""
verifier = mock.MagicMock(name='mock_verifier')
self.store.chunk_size = units.Ki
image_id = 'fake_image_id'
file_size = units.Ki # 1K
file_contents = b"*" * file_size
image_file = six.BytesIO(file_contents)
def _fake_run_command(command, data, *params):
pass
with mock.patch.object(sheepdog.SheepdogImage, '_run_command') as cmd:
cmd.side_effect = _fake_run_command
self.store.add(image_id, image_file, file_size, self.hash_algo,
verifier=verifier)
verifier.update.assert_called_with(file_contents)

View File

@ -30,7 +30,6 @@ glance_store.drivers =
http = glance_store._drivers.http:Store
swift = glance_store._drivers.swift:Store
rbd = glance_store._drivers.rbd:Store
sheepdog = glance_store._drivers.sheepdog:Store
cinder = glance_store._drivers.cinder:Store
vmware = glance_store._drivers.vmware_datastore:Store
@ -42,7 +41,6 @@ glance_store.drivers =
glance.store.http.Store = glance_store._drivers.http:Store
glance.store.swift.Store = glance_store._drivers.swift:Store
glance.store.rbd.Store = glance_store._drivers.rbd:Store
glance.store.sheepdog.Store = glance_store._drivers.sheepdog:Store
glance.store.cinder.Store = glance_store._drivers.cinder:Store
glance.store.vmware_datastore.Store = glance_store._drivers.vmware_datastore:Store