110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
from temporalio import workflow, client
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from temporalio.worker import Worker
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import sys
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with workflow.unsafe.imports_passed_through():
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import os
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import asyncio
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from laborious.workflows.predictions_batch import PredictionsBatch
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from laborious.workflows.sub_workflows.prediction_process import PredictionProcess
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from laborious.workflows.sub_workflows.format_and_export_prediction import \
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FormatAndExportPrediction
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from laborious.activities.activities import Activities
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from laborious.utils.logger import get_logger
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from laborious.utils.connectors_config import (
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build_postgres_config,
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build_mlflow_config,
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build_opc_config
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)
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from sientia_do.notifications.handlers import NotificationHandler
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async def main():
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host = os.getenv('TEMPORAL_HOST', 'localhost:7233')
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logger = get_logger(__name__)
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logger.info('Starting Worker...')
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logger.info('Starting Notification Handler...')
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notification_handler = NotificationHandler(
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servers=os.getenv('KAFKA_SERVERS', 'http://localhost:9092'),
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logger=logger,
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project_name=os.getenv('PROJECT_NAME', 'laborious'),
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pipeline_name='-',
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trigger_name='-',
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model_name='-',
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model='-'
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)
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logger.info('Starting Activities...')
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activities = Activities(
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postgres_config=build_postgres_config(),
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mlflow_config=build_mlflow_config(),
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opc_config=build_opc_config(),
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logger=logger,
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notification_handler=notification_handler
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)
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logger.info('Starting Temporal Client...')
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temporal_client = await client.Client.connect(
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target_host=host,
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namespace=os.getenv('TEMPORAL_NAMESPACE', 'default')
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)
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logger.info('Starting Workers...')
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workers = [
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Worker(
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temporal_client,
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task_queue='predictions-queue',
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workflows=[PredictionsBatch, PredictionProcess,
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FormatAndExportPrediction],
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activities=[
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# Base
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activities.prepare_activity,
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# MLFlow
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activities.request_predict,
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activities.request_transform,
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# Gates
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activities.input_gate,
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activities.mlflow_response_gate,
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activities.mlflow_content_gate,
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activities.format_prediction,
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activities.format_default_prediction,
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activities.get_last_timestamp,
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# OPC
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activities.write_opc_data,
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# Postgres
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activities.load_custom_query,
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activities.repeat_last_prediction,
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activities.export_data_to_postgres
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]
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)
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]
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handlers = []
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for w in workers:
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handlers.append(w.run())
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logger.info('Workers started successfully')
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try:
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# This will run the workers and wait for them to complete.
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# If an exception occurs in any of the worker handlers, it will be propagated here.
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await asyncio.gather(*handlers)
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except BaseException as e:
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logger.error("An unhandled exception occurred: %s", e, exc_info=True)
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finally:
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if notification_handler:
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notification_handler.shutdown()
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if activities:
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activities.shutdown()
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# Exit with a non-zero status code to indicate failure to Kubernetes
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sys.exit(1)
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if __name__ == '__main__':
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asyncio.run(main())
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