def exit_if_same_taskId(taskId):
global backup_logger, hutil, para_parser
trans_report_msg = None
taskIdentity = TaskIdentity()
last_taskId = taskIdentity.stored_identity()
if (taskId == last_taskId):
backup_logger.log(
"TaskId is same as last, so skip with Processed Status, current:" +
str(taskId) + "== last:" + str(last_taskId), True)
status = CommonVariables.status_success
hutil.SetExtErrorCode(ExtensionErrorCodeHelper.ExtensionErrorCodeEnum.
SuccessAlreadyProcessedInput)
status_code = CommonVariables.SuccessAlreadyProcessedInput
message = 'TaskId AlreadyProcessed nothing to do'
try:
if (para_parser is not None):
blob_report_msg, file_report_msg = hutil.do_status_report(operation='Enable',status=status,\
status_code=str(status_code),\
message=message,\
taskId=taskId,\
commandStartTimeUTCTicks=para_parser.commandStartTimeUTCTicks,\
snapshot_info=None)
status_report_to_file(file_report_msg)
except Exception as e:
err_msg = 'cannot write status to the status file, Exception %s, stack trace: %s' % (
str(e), traceback.format_exc())
backup_logger.log(err_msg, True, 'Warning')
sys.exit(0)
def exit_if_same_taskId(taskId):
global backup_logger
taskIdentity = TaskIdentity()
last_taskId = taskIdentity.stored_identity()
if(taskId == last_taskId):
backup_logger.log("TaskId is same as last, so skip, current:" + str(taskId) + "== last:" + str(last_taskId), True)
sys.exit(0)
def exit_if_same_taskId(taskId):
global backup_logger
taskIdentity = TaskIdentity()
last_taskId = taskIdentity.stored_identity()
if(taskId == last_taskId):
backup_logger.log("TaskId is same as last, so skip, current:" + str(taskId) + "== last:" + str(last_taskId), True)
sys.exit(0)
def exit_if_same_taskId(taskId):
global backup_logger, hutil, para_parser
trans_report_msg = None
taskIdentity = TaskIdentity()
last_taskId = taskIdentity.stored_identity()
if (taskId == last_taskId):
backup_logger.log(
"TaskId is same as last, so skip with Processed Status, current:" +
str(taskId) + "== last:" + str(last_taskId), True)
status = CommonVariables.status_success
hutil.SetExtErrorCode(ExtensionErrorCodeHelper.ExtensionErrorCodeEnum.
SuccessAlreadyProcessedInput)
status_code = CommonVariables.SuccessAlreadyProcessedInput
message = 'TaskId AlreadyProcessed nothing to do'
backup_logger.log(message, True)
sys.exit(0)
def exit_if_same_taskId(taskId):
global backup_logger,hutil,para_parser
trans_report_msg = None
taskIdentity = TaskIdentity()
last_taskId = taskIdentity.stored_identity()
if(taskId == last_taskId):
backup_logger.log("TaskId is same as last, so skip with Processed Status, current:" + str(taskId) + "== last:" + str(last_taskId), True)
status=CommonVariables.status_success
hutil.SetExtErrorCode(ExtensionErrorCodeHelper.ExtensionErrorCodeEnum.SuccessAlreadyProcessedInput)
status_code=CommonVariables.SuccessAlreadyProcessedInput
message='TaskId AlreadyProcessed nothing to do'
try:
if(para_parser is not None):
blob_report_msg, file_report_msg = hutil.do_status_report(operation='Enable',status=status,\
status_code=str(status_code),\
message=message,\
taskId=taskId,\
commandStartTimeUTCTicks=para_parser.commandStartTimeUTCTicks,\
snapshot_info=None)
status_report_to_file(file_report_msg)
except Exception as e:
err_msg='cannot write status to the status file, Exception %s, stack trace: %s' % (str(e), traceback.format_exc())
backup_logger.log(err_msg, True, 'Warning')
sys.exit(0)
def enable():
freezer = FsFreezer(backup_logger)
unfreeze_result = None
snapshot_result = None
freeze_result = None
global_error_result = None
para_parser = None
run_result = 1
error_msg = ''
run_status = None
# precheck
freeze_called = False
try:
hutil.do_parse_context('Enable')
# we need to freeze the file system first
backup_logger.log('starting to enable', True)
"""
protectedSettings is the privateConfig passed from Powershell.
WATCHOUT that, the _context_config are using the most freshest timestamp.
if the time sync is alive, this should be right.
"""
protected_settings = hutil._context._config['runtimeSettings'][0]['handlerSettings'].get('protectedSettings')
public_settings = hutil._context._config['runtimeSettings'][0]['handlerSettings'].get('publicSettings')
para_parser = ParameterParser(protected_settings, public_settings)
commandStartTime = datetime.datetime(1, 1, 1) + datetime.timedelta(microseconds = para_parser.commandStartTimeUTCTicks / 10)
utcNow = datetime.datetime.utcnow()
backup_logger.log('command start time is ' + str(commandStartTime) + " and utcNow is " + str(utcNow))
timespan = utcNow - commandStartTime
TWENTY_MINUTES = 20 * 60
taskIdentity = TaskIdentity()
currentTaskIdentity = taskIdentity.stored_identity()
# handle the machine identity for the restoration scenario.
backup_logger.log('timespan is '+str(timespan))
if(abs(timespan.total_seconds()) > TWENTY_MINUTES):
error_msg = 'the call time stamp is out of date.'
exit_with_commit_log(error_msg,para_parser)
elif(para_parser.taskId == currentTaskIdentity):
error_msg = 'the task id is handled.'
exit_with_commit_log(error_msg,para_parser)
else:
taskIdentity.save_identity(para_parser.taskId)
commandToExecute = para_parser.commandToExecute
#validate all the required parameter here
if(commandToExecute.lower() == CommonVariables.iaas_install_command):
backup_logger.log("install succeed.",True)
run_status = 'success'
error_msg = 'Install Succeeded'
run_result = CommonVariables.success
backup_logger.log(error_msg)
elif(commandToExecute.lower() == CommonVariables.iaas_vmbackup_command):
if(para_parser.backup_metadata is None or para_parser.public_config_obj is None or para_parser.private_config_obj is None):
run_result = CommonVariables.parameter_error
run_status = 'error'
error_msg = 'required field empty or not correct'
backup_logger.log(error_msg, False, 'Error')
else:
backup_logger.log('commandToExecute is ' + commandToExecute, True)
"""
make sure the log is not doing when the file system is freezed.
"""
backup_logger.log("doing freeze now...", True)
freeze_called = True
freeze_result = freezer.freezeall()
backup_logger.log("freeze result " + str(freeze_result))
# check whether we freeze succeed first?
if(freeze_result is not None and len(freeze_result.errors) > 0):
run_result = CommonVariables.error
run_status = 'error'
error_msg = 'Enable failed with error' + str(freeze_result)
backup_logger.log(error_msg, False, 'Warning')
else:
backup_logger.log("doing snapshot now...")
snap_shotter = Snapshotter(backup_logger)
snapshot_result = snap_shotter.snapshotall(para_parser)
backup_logger.log("snapshotall ends...")
if(snapshot_result is not None and len(snapshot_result.errors) > 0):
error_msg = "snapshot result: " + str(snapshot_result)
run_result = CommonVariables.error
run_status = 'error'
backup_logger.log(error_msg, False, 'Error')
else:
run_result = CommonVariables.success
run_status = 'success'
error_msg = 'Enable Succeeded'
backup_logger.log(error_msg)
else:
run_status = 'error'
run_result = CommonVariables.parameter_error
error_msg = 'command is not correct'
backup_logger.log(error_msg, False, 'Error')
except Exception as e:
errMsg = "Failed to enable the extension with error: %s, stack trace: %s" % (str(e), traceback.format_exc())
backup_logger.log(errMsg, False, 'Error')
global_error_result = e
finally:
backup_logger.log("doing unfreeze now...")
if(freeze_called):
unfreeze_result = freezer.unfreezeall()
backup_logger.log("unfreeze result " + str(unfreeze_result))
error_msg += ('Enable Succeeded with error: ' + str(unfreeze_result.errors))
if(unfreeze_result is not None and len(unfreeze_result.errors) > 0):
backup_logger.log(error_msg, False, 'Warning')
backup_logger.log("unfreeze ends...")
if(para_parser is not None):
backup_logger.commit(para_parser.logsBlobUri)
"""
we do the final report here to get rid of the complex logic to handle the logging when file system be freezed issue.
"""
if(global_error_result is not None):
if(hasattr(global_error_result,'errno') and global_error_result.errno == 2):
run_result = CommonVariables.error_12
elif(para_parser is None):
run_result = CommonVariables.parameter_error
else:
run_result = CommonVariables.error
run_status = 'error'
error_msg += ('Enable failed.' + str(global_error_result))
print("para_parser is "+str(para_parser))
do_status_report(operation='Enable',status = run_status,status_code=str(run_result),message=error_msg,taskId=para_parser.taskId,commandStartTimeUTCTicks=para_parser.commandStartTimeUTCTicks,blobUri=para_parser.statusBlobUri)
hutil.do_exit(0, 'Enable', run_status, str(run_result), error_msg)
