def _delete_image(self, image_name, snapshot_name):
"""
Find the image file to delete.
:param image_name Image's name
:param snapshot_name Image snapshot's name
:raises NotFound if image does not exist;
InUseByStore if image is in use or snapshot unprotect failed
"""
with rados.Rados(conffile=self.conf_file, rados_id=self.user) as conn:
with conn.open_ioctx(self.pool) as ioctx:
if snapshot_name:
with rbd.Image(ioctx, image_name) as image:
try:
image.unprotect_snap(snapshot_name)
except rbd.ImageBusy:
log_msg = _("snapshot %s@%s could not be "
"unprotected because it is in use")
LOG.debug(log_msg % (image_name, snapshot_name))
raise exception.InUseByStore()
image.remove_snap(snapshot_name)
try:
rbd.RBD().remove(ioctx, image_name)
except rbd.ImageNotFound:
raise exception.NotFound(
_("RBD image %s does not exist") % image_name)
except rbd.ImageBusy:
log_msg = _("image %s could not be removed "
"because it is in use")
LOG.debug(log_msg % image_name)
raise exception.InUseByStore()
def delete(self, location):
"""
Takes a `glance.store.location.Location` object that indicates
where to find the image file to delete
: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
with rados.Rados(conffile=self.conf_file, rados_id=self.user) as conn:
with conn.open_ioctx(self.pool) as ioctx:
if loc.snapshot:
with rbd.Image(ioctx, loc.image) as image:
try:
image.unprotect_snap(loc.snapshot)
except rbd.ImageBusy:
log_msg = _("snapshot %s@%s could not be "
"unprotected because it is in use")
LOG.debug(log_msg % (loc.image, loc.snapshot))
raise exception.InUseByStore()
image.remove_snap(loc.snapshot)
try:
rbd.RBD().remove(ioctx, loc.image)
except rbd.ImageNotFound:
raise exception.NotFound(
_('RBD image %s does not exist') % loc.image)
except rbd.ImageBusy:
log_msg = _("image %s could not be removed"
"because it is in use")
LOG.debug(log_msg % loc.image)
raise exception.InUseByStore()
def _delete_image(self, image_name, snapshot_name=None):
"""
Delete RBD image and snapshot.
:param image_name Image's name
:param snapshot_name Image snapshot's name
:raises NotFound if image does not exist;
InUseByStore if image is in use or snapshot unprotect failed
"""
with rados.Rados(conffile=self.conf_file, rados_id=self.user) as conn:
with conn.open_ioctx(self.pool) as ioctx:
try:
# First remove snapshot.
if snapshot_name is not None:
with rbd.Image(ioctx, image_name) as image:
try:
image.unprotect_snap(snapshot_name)
except rbd.ImageBusy:
log_msg = _("snapshot %(image)s@%(snap)s "
"could not be unprotected because "
"it is in use")
LOG.debug(log_msg % {
'image': image_name,
'snap': snapshot_name
})
raise exception.InUseByStore()
image.remove_snap(snapshot_name)
# Then delete image.
rbd.RBD().remove(ioctx, image_name)
except rbd.ImageNotFound:
raise exception.NotFound(
_("RBD image %s does not exist") % image_name)
except rbd.ImageBusy:
log_msg = _("image %s could not be removed "
"because it is in use")
LOG.debug(log_msg % image_name)
raise exception.InUseByStore()
def _fake_delete_image(*args, **kwargs):
self.called_commands_actual.append('delete')
raise exception.InUseByStore()
