def queue_remove(self, image_spec):
image_spec = self.extract_image_spec(image_spec)
authorize_request(self.module, image_spec[0], image_spec[1])
self.log.info("queue_remove: {}".format(image_spec))
refs = {TASK_REF_ACTION: TASK_REF_ACTION_REMOVE,
TASK_REF_POOL_NAME: image_spec[0],
TASK_REF_POOL_NAMESPACE: image_spec[1],
TASK_REF_IMAGE_NAME: image_spec[2]}
with self.open_ioctx(image_spec) as ioctx:
try:
with rbd.Image(ioctx, image_spec[2]) as image:
refs[TASK_REF_IMAGE_ID] = image.id()
snaps = list(image.list_snaps())
except rbd.ImageNotFound:
pass
task = self.find_task(refs)
if task:
return 0, task.to_json(), ''
if TASK_REF_IMAGE_ID not in refs:
raise rbd.ImageNotFound("Image {} does not exist".format(
self.format_image_spec(image_spec)), errno=errno.ENOENT)
if snaps:
raise rbd.ImageBusy("Image {} has snapshots".format(
self.format_image_spec(image_spec)), errno=errno.EBUSY)
return 0, self.add_task(ioctx,
"Removing image {}".format(
self.format_image_spec(image_spec)),
refs), ''
def lock(self):
self.log.info('lock')
retry = 3
while retry:
try:
self.rbdimage.lock_exclusive(self.ceph.CEPH_LOCK_HOST)
self.locked_by_me = True
except rbd.ImageExists:
# This client and cookie already locked this. This is
# definitely fine.
return
except rbd.ImageBusy:
# Maybe the same client but different cookie. We're fine with
# different cookies - ignore this. Must be same client, though.
status = self.lock_status()
if status is None:
# Someone had the lock but released it in between.
# Lets try again
retry -= 1
continue
if status[1] == self.ceph.CEPH_LOCK_HOST:
# That's locked for us already. We just re-use
# the existing lock.
return
# Its locked for some other client.
self.log.error('assume-lock-failed', competing=status)
raise
raise rbd.ImageBusy(
'Could not acquire lock - tried multiple times. '
'Someone seems to be racing me.')
def queue_remove(self, image_spec):
image_spec = self.extract_image_spec(image_spec)
self.log.info("queue_remove: {}".format(image_spec))
refs = {TASK_REF_ACTION: TASK_REF_ACTION_REMOVE,
TASK_REF_POOL_NAME: image_spec[0],
TASK_REF_POOL_NAMESPACE: image_spec[1],
TASK_REF_IMAGE_NAME: image_spec[2]}
task = self.find_task(refs)
if task:
return 0, task.to_json(), ''
with self.open_ioctx(image_spec) as ioctx:
with rbd.Image(ioctx, image_spec[2]) as image:
if list(image.list_snaps()):
raise rbd.ImageBusy("Image {} has snapshots".format(
self.format_image_spec(image_spec)), errno=errno.EBUSY)
return 0, self.add_task(ioctx,
"Removing image {}".format(
self.format_image_spec(image_spec)),
refs), ''