docs-archive/apache-airflow-providers-google/1.0.0/_sources/logging/stackdriver.rst.txt

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.. _write-logs-stackdriver:

Writing Logs to Google Stackdriver
----------------------------------

Airflow can be configured to read and write task logs in `Google Stackdriver Logging <https://cloud.google.com/logging/>`__.

To enable this feature, ``airflow.cfg`` must be configured as in this
example:

.. code-block:: ini

    [logging]
    # Airflow can store logs remotely in AWS S3, Google Cloud Storage or Elastic Search.
    # Users must supply an Airflow connection id that provides access to the storage
    # location. If remote_logging is set to true, see UPDATING.md for additional
    # configuration requirements.
    remote_logging = True
    remote_base_log_folder = stackdriver://logs-name

All configuration options are in the ``[logging]`` section.

The value of field ``remote_logging`` must always be set to ``True`` for this feature to work.
Turning this option off will result in data not being sent to Stackdriver.
The ``remote_base_log_folder`` option contains the URL that specifies the type of handler to be used.
For integration with Stackdriver, this option should start with ``stackdriver:///``.
The path section of the URL specifies the name of the log e.g. ``stackdriver://airflow-tasks`` writes
logs under the name ``airflow-tasks``.

You can set ``google_key_path`` option in the ``[logging]`` section to specify the path to `the service
account key file <https://cloud.google.com/iam/docs/service-accounts>`__.
If omitted, authorization based on `the Application Default Credentials
<https://cloud.google.com/docs/authentication/production#finding_credentials_automatically>`__ will
be used.

By using the ``logging_config_class`` option you can get :ref:`advanced features <write-logs-advanced>` of
this handler. Details are available in the handler's documentation -
:class:`~airflow.providers.google.cloud.log.stackdriver_task_handler.StackdriverTaskHandler`.


.. _log-link-stackdriver:

Google Stackdriver External Link
''''''''''''''''''''''''''''''''

Airflow automatically shows a link to Google Stackdriver when configured to use it as the remote logging system.