def _copy_image_to_volume(self, context, volume_ref, image_id,
image_location, image_service):
"""Downloads Glance image to the specified volume."""
copy_image_to_volume = self.driver.copy_image_to_volume
volume_id = volume_ref['id']
LOG.debug(
"Attempting download of %(image_id)s (%(image_location)s)"
" to volume %(volume_id)s." % {
'image_id':
image_id,
'volume_id':
volume_id,
'image_location':
flow_utils.safe_print_image_location(image_location)
})
try:
copy_image_to_volume(context, volume_ref, image_service, image_id)
except processutils.ProcessExecutionError as ex:
LOG.error(
_("Failed to copy image %(image_id)s to volume: "
"%(volume_id)s, error: %(error)s") % {
'volume_id': volume_id,
'error': ex.stderr,
'image_id': image_id
})
raise exception.ImageCopyFailure(reason=ex.stderr)
except exception.ImageUnacceptable as ex:
LOG.error(
_("Failed to copy image to volume: %(volume_id)s, "
"error: %(error)s") % {
'volume_id': volume_id,
'error': ex
})
raise exception.ImageUnacceptable(ex)
except Exception as ex:
LOG.error(
_("Failed to copy image %(image_id)s to "
"volume: %(volume_id)s, error: %(error)s") % {
'volume_id': volume_id,
'error': ex,
'image_id': image_id
})
if not isinstance(ex, exception.ImageCopyFailure):
raise exception.ImageCopyFailure(reason=ex)
else:
raise
LOG.debug(
"Downloaded image %(image_id)s (%(image_location)s)"
" to volume %(volume_id)s successfully." % {
'image_id':
image_id,
'volume_id':
volume_id,
'image_location':
flow_utils.safe_print_image_location(image_location)
})
def _create_from_image(self, context, volume_ref, image_location, image_id,
image_meta, image_service, **kwargs):
LOG.debug(
"Cloning %(volume_id)s from image %(image_id)s "
" at location %(image_location)s." % {
'volume_id':
volume_ref['id'],
'image_location':
flow_utils.safe_print_image_location(image_location),
'image_id':
image_id
})
# Create the volume from an image.
#
# NOTE (singn): two params need to be returned
# dict containing provider_location for cloned volume
# and clone status.
model_update, cloned = self.driver.clone_image(volume_ref,
image_location,
image_id, image_meta)
if not cloned:
# TODO(harlowja): what needs to be rolled back in the clone if this
# volume create fails?? Likely this should be a subflow or broken
# out task in the future. That will bring up the question of how
# do we make said subflow/task which is only triggered in the
# clone image 'path' resumable and revertable in the correct
# manner.
#
# Create the volume and then download the image onto the volume.
volume_ref['image_id'] = image_id
model_update = self.driver.create_volume(volume_ref)
updates = dict(model_update or dict(), status='downloading')
try:
volume_ref = self.db.volume_update(context, volume_ref['id'],
updates)
except exception.CinderException:
LOG.exception(
_("Failed updating volume %(volume_id)s with "
"%(updates)s") % {
'volume_id': volume_ref['id'],
'updates': updates
})
self._copy_image_to_volume(context, volume_ref, image_id,
image_location, image_service)
self._handle_bootable_volume_glance_meta(context,
volume_ref['id'],
image_id=image_id,
image_meta=image_meta)
return model_update
def _copy_image_to_volume(self, context, volume_ref,
image_id, image_location, image_service):
"""Downloads Glance image to the specified volume."""
copy_image_to_volume = self.driver.copy_image_to_volume
volume_id = volume_ref['id']
LOG.debug("Attempting download of %(image_id)s (%(image_location)s)"
" to volume %(volume_id)s." %
{'image_id': image_id, 'volume_id': volume_id,
'image_location': flow_utils.safe_print_image_location(image_location)})
try:
copy_image_to_volume(context, volume_ref, image_service, image_id)
except processutils.ProcessExecutionError as ex:
LOG.error(_("Failed to copy image %(image_id)s to volume: "
"%(volume_id)s, error: %(error)s") %
{'volume_id': volume_id,
'error': ex.stderr, 'image_id': image_id})
raise exception.ImageCopyFailure(reason=ex.stderr)
except exception.ImageUnacceptable as ex:
LOG.error(_("Failed to copy image to volume: %(volume_id)s, "
"error: %(error)s") % {'volume_id': volume_id,
'error': ex})
raise exception.ImageUnacceptable(ex)
except Exception as ex:
LOG.error(_("Failed to copy image %(image_id)s to "
"volume: %(volume_id)s, error: %(error)s") %
{'volume_id': volume_id, 'error': ex,
'image_id': image_id})
if not isinstance(ex, exception.ImageCopyFailure):
raise exception.ImageCopyFailure(reason=ex)
else:
raise
LOG.debug("Downloaded image %(image_id)s (%(image_location)s)"
" to volume %(volume_id)s successfully." %
{'image_id': image_id, 'volume_id': volume_id,
'image_location': flow_utils.safe_print_image_location(image_location)})
def _create_from_image(self, context, volume_ref,
image_location, image_id, image_meta,
image_service, **kwargs):
LOG.debug("Cloning %(volume_id)s from image %(image_id)s "
" at location %(image_location)s." %
{'volume_id': volume_ref['id'],
'image_location': flow_utils.safe_print_image_location(image_location),
'image_id': image_id})
# Create the volume from an image.
#
# NOTE (singn): two params need to be returned
# dict containing provider_location for cloned volume
# and clone status.
model_update, cloned = self.driver.clone_image(
volume_ref, image_location, image_id, image_meta)
if not cloned:
# TODO(harlowja): what needs to be rolled back in the clone if this
# volume create fails?? Likely this should be a subflow or broken
# out task in the future. That will bring up the question of how
# do we make said subflow/task which is only triggered in the
# clone image 'path' resumable and revertable in the correct
# manner.
#
# Create the volume and then download the image onto the volume.
volume_ref['image_id'] = image_id
model_update = self.driver.create_volume(volume_ref)
updates = dict(model_update or dict(), status='downloading')
try:
volume_ref = self.db.volume_update(context,
volume_ref['id'], updates)
except exception.CinderException:
LOG.exception(_("Failed updating volume %(volume_id)s with "
"%(updates)s") %
{'volume_id': volume_ref['id'],
'updates': updates})
self._copy_image_to_volume(context, volume_ref,
image_id, image_location, image_service)
self._handle_bootable_volume_glance_meta(context, volume_ref['id'],
image_id=image_id,
image_meta=image_meta)
return model_update
