def _fetch(context, image_href, path, force_raw=False):
"""Fetch image and convert to raw format if needed."""
path_tmp = "%s.part" % path
images.fetch(context, image_href, path_tmp, force_raw=False)
# Notes(yjiang5): If glance can provide the virtual size information,
# then we can firstly clean cache and then invoke images.fetch().
if force_raw:
if images.force_raw_will_convert(image_href, path_tmp):
required_space = images.converted_size(path_tmp, estimate=False)
directory = os.path.dirname(path_tmp)
try:
_clean_up_caches(directory, required_space)
except exception.InsufficientDiskSpace:
# try again with an estimated raw size instead of the full size
required_space = images.converted_size(path_tmp, estimate=True)
try:
_clean_up_caches(directory, required_space)
except exception.InsufficientDiskSpace:
LOG.warning(
'Not enough space for estimated image size. '
'Consider lowering '
'[DEFAULT]raw_image_growth_factor=%s',
CONF.raw_image_growth_factor)
raise
images.image_to_raw(image_href, path, path_tmp)
else:
os.rename(path_tmp, path)
def test_converted_size(self, qemu_img_info_mock):
info = self.FakeImgInfo()
info.virtual_size = 1
qemu_img_info_mock.return_value = info
size = images.converted_size('path')
qemu_img_info_mock.assert_called_once_with('path')
self.assertEqual(1, size)
def test_converted_size(self, qemu_img_info_mock):
info = self.FakeImgInfo()
info.virtual_size = 1
qemu_img_info_mock.return_value = info
size = images.converted_size('path')
qemu_img_info_mock.assert_called_once_with('path')
self.assertEqual(1, size)
def _fetch_to_raw(context, image_href, path, image_service=None):
"""Fetch image and convert to raw format if needed."""
path_tmp = "%s.part" % path
images.fetch(context, image_href, path_tmp, image_service)
required_space = images.converted_size(path_tmp)
directory = os.path.dirname(path_tmp)
_clean_up_caches(directory, required_space)
images.image_to_raw(image_href, path, path_tmp)
def _fetch_to_raw(context, image_href, path, image_service=None):
"""Fetch image and convert to raw format if needed."""
path_tmp = "%s.part" % path
images.fetch(context, image_href, path_tmp, image_service)
required_space = images.converted_size(path_tmp)
directory = os.path.dirname(path_tmp)
_clean_up_caches(directory, required_space)
images.image_to_raw(image_href, path, path_tmp)
def test_converted_size_estimate_default(self, qemu_img_info_mock):
info = self.FakeImgInfo()
info.disk_size = 2
info.virtual_size = 10 ** 10
qemu_img_info_mock.return_value = info
size = images.converted_size('path', estimate=True)
qemu_img_info_mock.assert_called_once_with('path')
self.assertEqual(4, size)
def test_converted_size_estimate_raw_smaller(self, qemu_img_info_mock):
CONF.set_override('raw_image_growth_factor', 3)
info = self.FakeImgInfo()
info.disk_size = 2
info.virtual_size = 5
qemu_img_info_mock.return_value = info
size = images.converted_size('path', estimate=True)
qemu_img_info_mock.assert_called_once_with('path')
self.assertEqual(5, size)
def get_image_mb(image_path, virtual_size=True):
"""Get size of an image in Megabyte."""
mb = 1024 * 1024
if not virtual_size:
image_byte = os.path.getsize(image_path)
else:
image_byte = images.converted_size(image_path)
# round up size to MB
image_mb = int((image_byte + mb - 1) / mb)
return image_mb
def _fetch(context, image_href, path, force_raw=False):
"""Fetch image and convert to raw format if needed."""
path_tmp = "%s.part" % path
images.fetch(context, image_href, path_tmp, force_raw=False)
# Notes(yjiang5): If glance can provide the virtual size information,
# then we can firstly clean cache and then invoke images.fetch().
if force_raw:
required_space = images.converted_size(path_tmp)
directory = os.path.dirname(path_tmp)
_clean_up_caches(directory, required_space)
images.image_to_raw(image_href, path, path_tmp)
else:
os.rename(path_tmp, path)
def _fetch(context, image_href, path, force_raw=False):
"""Fetch image and convert to raw format if needed."""
path_tmp = "%s.part" % path
images.fetch(context, image_href, path_tmp, force_raw=False)
# Notes(yjiang5): If glance can provide the virtual size information,
# then we can firstly clean cache and then invoke images.fetch().
if force_raw:
required_space = images.converted_size(path_tmp)
directory = os.path.dirname(path_tmp)
_clean_up_caches(directory, required_space)
images.image_to_raw(image_href, path, path_tmp)
else:
os.rename(path_tmp, path)
