def is_image_extendable(image):
"""Check whether we can extend the image."""
LOG.debug('Checking if we can extend filesystem inside %(image)s.',
{'image': image})
# For anything except a local raw file we must
# go via the VFS layer
if (not isinstance(image, imgmodel.LocalImage)
or image.format != imgmodel.FORMAT_RAW):
fs = None
try:
fs = vfs.VFS.instance_for_image(image, None)
fs.setup(mount=False)
if fs.get_image_fs() in SUPPORTED_FS_TO_EXTEND:
return True
except exception.NovaException as e:
# FIXME(sahid): At this step we probably want to break the
# process if something wrong happens however our CI
# provides a bad configuration for libguestfs reported in
# the bug lp#1413142. When resolved we should remove this
# except to let the error to be propagated.
LOG.warning(
'Unable to mount image %(image)s with '
'error %(error)s. Cannot resize.', {
'image': image,
'error': e
})
finally:
if fs is not None:
fs.teardown()
return False
else:
# For raw, we can directly inspect the file system
try:
utils.execute('e2label', image.path)
except processutils.ProcessExecutionError as e:
LOG.debug(
'Unable to determine label for image %(image)s with '
'error %(error)s. Cannot resize.', {
'image': image,
'error': e
})
return False
return True
def is_image_extendable(image):
"""Check whether we can extend the image."""
LOG.debug('Checking if we can extend filesystem inside %(image)s.',
{'image': image})
# For anything except a local raw file we must
# go via the VFS layer
if (not isinstance(image, imgmodel.LocalImage) or
image.format != imgmodel.FORMAT_RAW):
fs = None
try:
fs = vfs.VFS.instance_for_image(image, None)
fs.setup(mount=False)
if fs.get_image_fs() in SUPPORTED_FS_TO_EXTEND:
return True
except exception.NovaException as e:
# FIXME(sahid): At this step we probably want to break the
# process if something wrong happens however our CI
# provides a bad configuration for libguestfs reported in
# the bug lp#1413142. When resolved we should remove this
# except to let the error to be propagated.
LOG.warning('Unable to mount image %(image)s with '
'error %(error)s. Cannot resize.',
{'image': image, 'error': e})
finally:
if fs is not None:
fs.teardown()
return False
else:
# For raw, we can directly inspect the file system
try:
processutils.execute('e2label', image.path)
except processutils.ProcessExecutionError as e:
LOG.debug('Unable to determine label for image %(image)s with '
'error %(error)s. Cannot resize.',
{'image': image,
'error': e})
return False
return True