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Deprecate conf from Task Context #44968

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Dec 17, 2024
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Deprecate conf from Task Context #44968

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03b408b
Deprecate `conf` from Task Context
kaxil Dec 16, 2024
a28a118
fixup! Deprecate `conf` from Task Context
kaxil Dec 16, 2024
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1 change: 1 addition & 0 deletions airflow/utils/context.py
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Expand Up @@ -359,6 +359,7 @@ class Context(MutableMapping[str, Any]):
"tomorrow_ds_nodash": [],
"yesterday_ds": [],
"yesterday_ds_nodash": [],
"conf": [],
}

def __init__(self, context: MutableMapping[str, Any] | None = None, **kwargs: Any) -> None:
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4 changes: 2 additions & 2 deletions docs/apache-airflow/templates-ref.rst
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Expand Up @@ -79,8 +79,6 @@ Variable Type Description
``{{ conn }}`` Airflow connections. See `Airflow Connections in Templates`_ below.
``{{ task_instance_key_str }}`` str | A unique, human-readable key to the task instance. The format is
| ``{dag_id}__{task_id}__{ds_nodash}``.
``{{ conf }}`` AirflowConfigParser | The full configuration object representing the content of your
| ``airflow.cfg``. See :mod:`airflow.configuration.conf`.
``{{ run_id }}`` str The currently running :class:`~airflow.models.dagrun.DagRun` run ID.
``{{ dag_run }}`` DagRun The currently running :class:`~airflow.models.dagrun.DagRun`.
``{{ test_mode }}`` bool Whether the task instance was run by the ``airflow test`` CLI.
Expand Down Expand Up @@ -133,6 +131,8 @@ Deprecated Variable Description
you may be able to use ``prev_data_interval_start_success`` instead if
the timetable/schedule you use for the DAG defines ``data_interval_start``
compatible with the legacy ``execution_date``.
``{{ conf }}`` The full configuration object representing the content of your
``airflow.cfg``. See :mod:`airflow.configuration.conf`.
===================================== ==========================================================================

Note that you can access the object's attributes and methods with simple
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1 change: 1 addition & 0 deletions newsfragments/44968.misc.rst
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@@ -0,0 +1 @@
The ``conf`` variable, which provided access to the full Airflow configuration (``airflow.cfg``), has been deprecated and will be removed in Airflow 3 from the Task (Jinja2) template context for security and simplicity. If you need specific configuration values in your tasks, retrieve them explicitly in your DAG or task code using the ``airflow.configuration.conf`` module. For users retrieving the webserver URL (e.g., to include log links in task or callbacks), one of the most common use-case, use the ``ti.log_url`` property available in the ``TaskInstance`` context instead.