def create_volume_from_image(self, image_id):
"""Create cinder volume
:param image_id: ID of amphora image
:return volume id
"""
volume = self.manager.create(
size=CONF.cinder.volume_size,
volume_type=CONF.cinder.volume_type,
availability_zone=CONF.cinder.availability_zone,
imageRef=image_id)
resource_status = self.manager.get(volume.id).status
status = constants.CINDER_STATUS_AVAILABLE
start = int(time.time())
while resource_status != status:
time.sleep(CONF.cinder.volume_create_retry_interval)
instance_volume = self.manager.get(volume.id)
resource_status = instance_volume.status
if resource_status == constants.CINDER_STATUS_ERROR:
LOG.error('Error creating %s', instance_volume.id)
instance_volume.delete()
raise cinder_exceptions.ResourceInErrorState(
obj=volume, fault_msg='Cannot create volume')
if int(time.time()) - start >= CONF.cinder.volume_create_timeout:
LOG.error('Timed out waiting to create cinder volume %s',
instance_volume.id)
instance_volume.delete()
raise cinder_exceptions.TimeoutException(
obj=volume, action=constants.CINDER_ACTION_CREATE_VOLUME)
return volume.id
def _poll_for_status(poll_fn, obj_id, info, action, final_ok_states,
timeout_period, global_request_id=None, messages=None,
poll_period=2, status_field="status"):
"""Block while an action is being performed."""
time_elapsed = 0
while True:
time.sleep(poll_period)
time_elapsed += poll_period
obj = poll_fn(obj_id)
status = getattr(obj, status_field)
info[status_field] = status
if status:
status = status.lower()
if status in final_ok_states:
break
elif status == "error":
utils.print_dict(info)
if global_request_id:
search_opts = {
'request_id': global_request_id
}
message_list = messages.list(search_opts=search_opts)
try:
fault_msg = message_list[0].user_message
except IndexError:
fault_msg = "Unknown error. Operation failed."
raise exceptions.ResourceInErrorState(obj, fault_msg)
elif time_elapsed == timeout_period:
utils.print_dict(info)
raise exceptions.TimeoutException(obj, action)