on_dag_run_created listener ignored in plugin

[WillRaphaelson]

Apache Airflow version

2.10.3

If "Other Airflow 2 version" selected, which one?

No response

What happened?

on_dag_run_created hook is being ignored in plugin

What you think should happen instead?

on_dag_run_created should run the relevant logic in the function

How to reproduce

from airflow.plugins_manager import AirflowPlugin
from airflow.listeners import hookimpl
import logging

# Configure logger
logger = logging.getLogger(__name__)

class PreDagRunListener:
    """
    Listener to perform actions before any task in a DAG run starts.
    """

    @hookimpl
    def on_dag_run_created(self, dag_run, session):
        """
        Hook triggered when a DAG run is created, before tasks are executed.
        """
        dag_id = dag_run.dag_id
        run_id = dag_run.run_id

        logger.info(f"Pre-DAG execution logic triggered for DAG {dag_id}, run_id {run_id}.")

        # Add your custom pre-DAG logic here
        # Example: Block a specific DAG
        if dag_id == "blocked_dag":
            logger.error(f"DAG {dag_id} is blocked from running.")
            raise ValueError(f"DAG {dag_id} failed pre-run checks.")
        
        logger.info(f"DAG {dag_id} passed pre-run checks.")

class PreDagRunPlugin(AirflowPlugin):
    name = "pre_dag_run_plugin"
    listeners = [PreDagRunListener()]

Operating System

MacOS

Versions of Apache Airflow Providers

apache-airflow-providers-common-compat==1.2.1
apache-airflow-providers-common-io==1.4.2
apache-airflow-providers-common-sql==1.19.0
apache-airflow-providers-fab==1.5.0
apache-airflow-providers-ftp==3.11.1
apache-airflow-providers-http==4.13.2
apache-airflow-providers-imap==3.7.0
apache-airflow-providers-smtp==1.8.0
apache-airflow-providers-sqlite==3.9.0

Deployment

Virtualenv installation

Deployment details

Local setup - only change i made was to not lazy load plugins with lazy_load_plugins = False

Anything else?

I can never get an on_dag_run_created hook to run no matter what. I'm open ot anything that allows me to run dag level pre-flight checks.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

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