def DeleteSnapshot(self, request, context):
set_current_thread_name(request.snapshot_id)
logger.info("Delete snapshot")
secrets = request.secrets
try:
utils.validate_delete_snapshot_request(request)
user, password, array_addresses = utils.get_array_connection_info_from_secret(
secrets)
try:
array_type, snapshot_id = utils.get_snapshot_id_info(
request.snapshot_id)
except ObjectIdError as ex:
logger.warning("volume id is invalid. error : {}".format(ex))
return csi_pb2.DeleteVolumeResponse()
array_type = detect_array_type(array_addresses)
with get_agent(user, password, array_addresses,
array_type).get_mediator() as array_mediator:
logger.debug(array_mediator)
try:
array_mediator.delete_snapshot(snapshot_id)
except controller_errors.SnapshotNotFoundError as ex:
logger.debug(
"Snapshot was not found during deletion: {0}".format(
ex))
except controller_errors.SnapshotNotFoundError:
logger.debug(
"snapshot was not found during deletion: {0}".format(ex))
context.set_code(grpc.StatusCode.OK)
return csi_pb2.DeleteSnapshotResponse()
except controller_errors.SnapshotIsStillInUseError:
logger.info(
"could not delete snapshot while in use: {0}".format(ex))
context.set_code(grpc.StatusCode.FAILED_PRECONDITION)
context.set_details(ex)
return csi_pb2.DeleteSnapshotResponse()
except controller_errors.PermissionDeniedError as ex:
context.set_code(grpc.StatusCode.PERMISSION_DENIED)
context.set_details(ex)
return csi_pb2.DeleteSnapshotResponse()
except ValidationException as ex:
logger.exception(ex)
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.DeleteSnapshotResponse()
except Exception as ex:
logger.debug("an internal exception occurred")
logger.exception(ex)
context.set_code(grpc.StatusCode.INTERNAL)
context.set_details(
'an internal exception occurred : {}'.format(ex))
return csi_pb2.DeleteSnapshotResponse()
logger.debug("generating delete snapshot response")
res = csi_pb2.DeleteSnapshotResponse()
logger.info("finished DeleteSnapshot")
return res
def test_detect_array_type(self, _):
self.assertEqual(detect_array_type([
"svc_host",
]), SVCArrayMediator.array_type)
self.assertEqual(detect_array_type([
"ds8k_host",
]), DS8KArrayMediator.array_type)
self.assertEqual(detect_array_type([
"xiv_host",
]), XIVArrayMediator.array_type)
with self.assertRaises(FailedToFindStorageSystemType):
detect_array_type([
"unknown_host",
])
def CreateVolume(self, request, context):
set_current_thread_name(request.name)
logger.info("create volume")
try:
utils.validate_create_volume_request(request)
except ObjectIdError as ex:
return handle_exception(ex, context, grpc.StatusCode.NOT_FOUND,
csi_pb2.CreateVolumeResponse)
logger.debug("volume name : {}".format(request.name))
source_type, source_id = self._get_source_type_and_id(request)
logger.debug("Source {0} id : {1}".format(source_type, source_id))
topologies = utils.get_volume_topologies(request)
secrets = request.secrets
try:
array_connection_info = utils.get_array_connection_info_from_secrets(
secrets=secrets, topologies=topologies)
volume_parameters = utils.get_volume_parameters(
parameters=request.parameters,
system_id=array_connection_info.system_id)
pool = volume_parameters.pool
if not pool:
raise ValidationException(
controller_messages.pool_should_not_be_empty_message)
space_efficiency = volume_parameters.space_efficiency
# TODO : pass multiple array addresses
array_type = detect_array_type(
array_connection_info.array_addresses)
with get_agent(array_connection_info,
array_type).get_mediator() as array_mediator:
logger.debug(array_mediator)
volume_final_name = self._get_volume_final_name(
volume_parameters, request.name, array_mediator)
required_bytes = request.capacity_range.required_bytes
max_size = array_mediator.maximal_volume_size_in_bytes
min_size = array_mediator.minimal_volume_size_in_bytes
if required_bytes > max_size:
message = messages.SizeOutOfRangeError_message.format(
required_bytes, max_size)
return build_error_response(message, context,
grpc.StatusCode.OUT_OF_RANGE,
csi_pb2.CreateVolumeResponse)
if required_bytes == 0:
required_bytes = min_size
logger.debug(
"requested size is 0 so the default size will be used : {0} "
.format(required_bytes))
try:
volume = array_mediator.get_volume(
volume_final_name,
pool=pool,
)
except array_errors.ObjectNotFoundError:
logger.debug(
"volume was not found. creating a new volume with parameters: {0}"
.format(request.parameters))
array_mediator.validate_supported_space_efficiency(
space_efficiency)
volume = array_mediator.create_volume(
volume_final_name, required_bytes, space_efficiency,
pool)
else:
logger.debug("volume found : {}".format(volume))
if not source_id and volume.capacity_bytes != request.capacity_range.required_bytes:
message = "Volume was already created with different size."
return build_error_response(
message, context, grpc.StatusCode.ALREADY_EXISTS,
csi_pb2.CreateVolumeResponse)
copy_source_res = self._handle_existing_volume_source(
volume, source_id, source_type,
array_connection_info.system_id, context)
if copy_source_res:
return copy_source_res
if source_id:
self._copy_to_existing_volume_from_source(
volume, source_id, source_type, required_bytes,
array_mediator)
volume.copy_source_id = source_id
res = utils.generate_csi_create_volume_response(
volume, array_connection_info.system_id, source_type)
logger.info("finished create volume")
return res
except array_errors.InvalidArgumentError as ex:
return handle_exception(ex, context,
grpc.StatusCode.INVALID_ARGUMENT,
csi_pb2.CreateVolumeResponse)
except array_errors.VolumeAlreadyExists as ex:
return handle_exception(ex, context,
grpc.StatusCode.ALREADY_EXISTS,
csi_pb2.CreateVolumeResponse)
def CreateVolume(self, request, context): # pylint: disable=too-many-branches
set_current_thread_name(request.name)
logger.info("create volume")
try:
utils.validate_create_volume_request(request)
except ValidationException as ex:
logger.error("failed request validation")
logger.exception(ex)
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.CreateVolumeResponse()
except ObjectIdError as ex:
logger.exception(ex)
context.set_details(ex.message)
context.set_code(grpc.StatusCode.NOT_FOUND)
return csi_pb2.CreateVolumeResponse()
volume_name = request.name
logger.debug("volume name : {}".format(volume_name))
src_snapshot_id = self._get_src_snapshot_id(request)
logger.debug("Source snapshot id : {}".format(src_snapshot_id))
secrets = request.secrets
user, password, array_addresses = utils.get_array_connection_info_from_secret(
secrets)
pool = request.parameters[config.PARAMETERS_POOL]
capabilities = {
key: value
for key, value in request.parameters.items() if key in [
config.PARAMETERS_CAPABILITIES_SPACEEFFICIENCY,
]
}
try:
# TODO : pass multiple array addresses
array_type = detect_array_type(array_addresses)
with get_agent(user, password, array_addresses,
array_type).get_mediator() as array_mediator:
logger.debug(array_mediator)
# TODO: CSI-1358 - remove try/except
try:
volume_full_name, volume_prefix = self._get_volume_name_and_prefix(
request, array_mediator)
except controller_errors.IllegalObjectName as ex:
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.CreateSnapshotResponse()
size = request.capacity_range.required_bytes
if size == 0:
size = array_mediator.minimal_volume_size_in_bytes
logger.debug(
"requested size is 0 so the default size will be used : {0} "
.format(size))
try:
vol = array_mediator.get_volume(
volume_full_name,
volume_context=request.parameters,
volume_prefix=volume_prefix,
)
except controller_errors.VolumeNotFoundError:
logger.debug(
"volume was not found. creating a new volume with parameters: {0}"
.format(request.parameters))
array_mediator.validate_supported_capabilities(
capabilities)
vol = array_mediator.create_volume(volume_full_name, size,
capabilities, pool,
volume_prefix)
else:
logger.debug("volume found : {}".format(vol))
if not src_snapshot_id and vol.capacity_bytes != request.capacity_range.required_bytes:
context.set_details(
"Volume was already created with different size.")
context.set_code(grpc.StatusCode.ALREADY_EXISTS)
return csi_pb2.CreateVolumeResponse()
copy_source_res = self._handle_existing_vol_src_snap(
vol, src_snapshot_id, context)
if copy_source_res:
return copy_source_res
if src_snapshot_id:
self._copy_to_existing_volume_from_snapshot(
vol, src_snapshot_id, size, array_mediator, pool)
vol.copy_src_object_id = src_snapshot_id
logger.debug("generating create volume response")
res = utils.generate_csi_create_volume_response(vol)
logger.info("finished create volume")
return res
except (controller_errors.IllegalObjectName,
controller_errors.StorageClassCapabilityNotSupported,
controller_errors.PoolDoesNotExist,
controller_errors.PoolDoesNotMatchCapabilities) as ex:
logger.exception(ex)
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.CreateVolumeResponse()
except controller_errors.PermissionDeniedError as ex:
context.set_code(grpc.StatusCode.PERMISSION_DENIED)
context.set_details(ex)
return csi_pb2.CreateVolumeResponse()
except controller_errors.VolumeAlreadyExists as ex:
context.set_details(ex.message)
context.set_code(grpc.StatusCode.ALREADY_EXISTS)
return csi_pb2.CreateVolumeResponse()
except Exception as ex:
logger.error("an internal exception occurred")
logger.exception(ex)
context.set_code(grpc.StatusCode.INTERNAL)
context.set_details(
'an internal exception occurred : {}'.format(ex))
return csi_pb2.CreateVolumeResponse()
def CreateSnapshot(self, request, context):
set_current_thread_name(request.name)
logger.info("Create snapshot")
try:
utils.validate_create_snapshot_request(request)
except ValidationException as ex:
logger.error("failed request validation")
logger.exception(ex)
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.CreateSnapshotResponse()
source_volume_id = request.source_volume_id
logger.info("Snapshot base name : {}. Source volume id : {}".format(
request.name, source_volume_id))
secrets = request.secrets
user, password, array_addresses = utils.get_array_connection_info_from_secret(
secrets)
try:
_, vol_id = utils.get_volume_id_info(source_volume_id)
array_type = detect_array_type(array_addresses)
with get_agent(user, password, array_addresses,
array_type).get_mediator() as array_mediator:
logger.debug(array_mediator)
# TODO: CSI-1358 - remove try/except
try:
snapshot_name = self._get_snapshot_name(
request, array_mediator)
except controller_errors.IllegalObjectName as ex:
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.CreateSnapshotResponse()
volume_name = array_mediator.get_volume_name(vol_id)
logger.info("Snapshot name : {}. Volume name : {}".format(
snapshot_name, volume_name))
snapshot = array_mediator.get_snapshot(
snapshot_name, volume_context=request.parameters)
if snapshot:
if snapshot.volume_name != volume_name:
context.set_details(
messages.SnapshotWrongVolumeError_message.format(
snapshot_name, snapshot.volume_name,
volume_name))
context.set_code(grpc.StatusCode.ALREADY_EXISTS)
return csi_pb2.CreateSnapshotResponse()
else:
logger.debug(
"Snapshot doesn't exist. Creating a new snapshot {0} from volume {1}"
.format(snapshot_name, volume_name))
snapshot = array_mediator.create_snapshot(
snapshot_name, volume_name, request.parameters)
logger.debug("generating create snapshot response")
res = utils.generate_csi_create_snapshot_response(
snapshot, source_volume_id)
logger.info("finished create snapshot")
return res
except (controller_errors.IllegalObjectName,
controller_errors.VolumeNotFoundError) as ex:
context.set_details(ex.message)
context.set_code(grpc.StatusCode.INVALID_ARGUMENT)
return csi_pb2.CreateSnapshotResponse()
except controller_errors.PermissionDeniedError as ex:
context.set_code(grpc.StatusCode.PERMISSION_DENIED)
context.set_details(ex)
return csi_pb2.CreateSnapshotResponse()
except controller_errors.SnapshotAlreadyExists as ex:
context.set_details(ex.message)
context.set_code(grpc.StatusCode.ALREADY_EXISTS)
return csi_pb2.CreateSnapshotResponse()
except Exception as ex:
logger.error("an internal exception occurred")
logger.exception(ex)
context.set_code(grpc.StatusCode.INTERNAL)
context.set_details(
'an internal exception occurred : {}'.format(ex))
return csi_pb2.CreateSnapshotResponse()