def init_session_with_single_management(logger):
connected = False
api = None
# try until able to connect to NVMesh Management
print("Looking for a NVMesh Management server using {} from servers {}".format(Config.MANAGEMENT_PROTOCOL, Config.MANAGEMENT_SERVERS))
while not connected:
try:
api, connected = NVMeshSDKHelper._try_to_connect_to_single_management(logger)
except ManagementTimeout as ex:
NVMeshSDKHelper.logger.info("Waiting for NVMesh Management servers on ({}) {}".format(Config.MANAGEMENT_PROTOCOL, Config.MANAGEMENT_SERVERS))
Utils.interruptable_sleep(10)
print("Connected to NVMesh Management server on ({}) {}".format(Config.MANAGEMENT_PROTOCOL, Config.MANAGEMENT_SERVERS))
return api
def NodeExpandVolume(self, request, context):
# if this function was called, assume the Controller checked that this volume is a FileSystem Mounted Volume.
# So we will resize the File System here
volume_id = request.volume_id
volume_path = request.volume_path
capacity_range = request.capacity_range
reqJson = MessageToJson(request)
self.logger.debug(
'NodeExpandVolume called with request: {}'.format(reqJson))
zone, nvmesh_vol_name = Utils.zone_and_vol_name_from_co_id(
request.volume_id)
block_device_path = Utils.get_nvmesh_block_device_path(nvmesh_vol_name)
self.logger.debug(
'NodeExpandVolume zone: {} nvmesh_vol_name: {} block_device_path: {}'
.format(zone, nvmesh_vol_name, block_device_path))
fs_type = FileSystemManager.get_fs_type(block_device_path)
self.logger.debug('fs_type={}'.format(fs_type))
attempts_left = 20
resized = False
while not resized and attempts_left:
exit_code, stdout, stderr = FileSystemManager.expand_file_system(
block_device_path, fs_type)
if 'Nothing to do!' in stderr:
block_device_size = FileSystemManager.get_block_device_size(
block_device_path)
self.logger.warning(
'File System not resized. block device size is {}'.format(
block_device_size))
attempts_left = attempts_left - 1
Utils.interruptable_sleep(2)
else:
resized = True
if not attempts_left:
raise DriverError(
StatusCode.INTERNAL,
'Back-Off trying to expand {} FileSystem on volume {}'.format(
fs_type, block_device_path))
self.logger.debug(
'Finished Expanding File System of type {} on volume {}'.format(
fs_type, block_device_path))
return NodeExpandVolumeResponse()
