broker_transport_options = {
        "max_connections": 50,
        "visibility_timeout": 43200,
        "socket_keepalive": True,
        "socket_connect_timeout": 10.0,
        "health_check_interval": 60,
        "retry_on_timeout": True,
        "polling_interval": 5.0,
    }

    if dify_config.CELERY_USE_SENTINEL:
        broker_transport_options.update(
            {
                "master_name": dify_config.CELERY_SENTINEL_MASTER_NAME,
                "sentinel_kwargs": {
                    "socket_timeout": dify_config.CELERY_SENTINEL_SOCKET_TIMEOUT,
                },
            }
        )

    # Create Celery app with all relevant configurations passed directly
    # to the constructor for highest priority.
    celery_app = Celery(
        app.name,
        task_cls=FlaskTask,
        broker=dify_config.CELERY_BROKER_URL,
        backend=dify_config.CELERY_RESULT_BACKEND,
        task_ignore_result=True,
        broker_pool_limit=20,
        broker_transport_options=broker_transport_options,  # Set for kombu transport
    )

    # Update other configurations
    celery_app.conf.update(
        result_backend=dify_config.CELERY_RESULT_BACKEND,
        broker_connection_retry_on_startup=True,
        worker_log_format=dify_config.LOG_FORMAT,
        worker_task_log_format=dify_config.LOG_FORMAT,
        worker_hijack_root_logger=False,
        timezone=pytz.timezone(dify_config.LOG_TZ or "UTC"),
        broker_heartbeat=60,
        task_acks_late=True,
    )