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dbt Cloud Operators
===================

These operators can execute dbt Cloud jobs, poll for status of a currently-executing job, and download run
artifacts locally.

Each of the operators can be tied to a specific dbt Cloud Account in two ways:

    * Explicitly provide the Account ID (via the ``account_id`` parameter) to the operator.
    * Or, specify the dbt Cloud Account in the Airflow Connection. The operators will fallback to using this
      automatically if the Account ID is not passed to the operator.

.. _howto/operator:DbtCloudRunJobOperator:

Trigger a dbt Cloud Job
~~~~~~~~~~~~~~~~~~~~~~~

Use the :class:`~airflow.providers.dbt.cloud.operators.dbt.DbtCloudRunJobOperator` to trigger a run of a dbt
Cloud job. By default, the operator will periodically check on the status of the executed job to terminate
with a successful status every ``check_interval`` seconds or until the job reaches a ``timeout`` length of
execution time. This functionality is controlled by the ``wait_for_termination`` parameter. Alternatively,
``wait_for_termination`` can be set to False to perform an asynchronous wait (typically paired with the
:class:`~airflow.providers.dbt.cloud.sensors.dbt.DbtCloudJobRunSensor`). Setting ``wait_for_termination`` to
False is a good approach for long-running dbt Cloud jobs.

The ``deferrable`` parameter along with ``wait_for_termination`` will control the functionality
whether to poll the job status on the worker or defer using the Triggerer.
When ``wait_for_termination`` is True and ``deferrable`` is False,we submit the job and ``poll``
for its status on the worker. This will keep the worker slot occupied till the job execution is done.
When ``wait_for_termination`` is True and ``deferrable`` is True,
we submit the job and ``defer`` using Triggerer. This will release the worker slot leading to savings in
resource utilization while the job is running.

When ``wait_for_termination`` is False and ``deferrable`` is False, we just submit the job and can only
track the job status with the :class:`~airflow.providers.dbt.cloud.sensors.dbt.DbtCloudJobRunSensor`.

When ``retry_from_failure`` is True, we retry the run for a job from the point of failure,
if the run failed. Otherwise we trigger a new run.
For more information on the retry logic, reference the
`API documentation <https://docs.getdbt.com/dbt-cloud/api-v2#/operations/Retry%20Failed%20Job>`__.

While ``schema_override`` and ``steps_override`` are explicit, optional parameters for the
``DbtCloudRunJobOperator``, custom run configurations can also be passed to the operator using the
``additional_run_config`` dictionary. This parameter can be used to initialize additional runtime
configurations or overrides for the job run such as ``threads_override``, ``generate_docs_override``,
``git_branch``, etc. For a complete list of the other configurations that can used at runtime, reference the
`API documentation <https://docs.getdbt.com/dbt-cloud/api-v2#operation/triggerRun>`__.

The below examples demonstrate how to instantiate DbtCloudRunJobOperator tasks with both synchronous and
asynchronous waiting for run termination, respectively. To note, the ``account_id`` for the operators is
referenced within the ``default_args`` of the example Dag.

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_run_job]
    :end-before: [END howto_operator_dbt_cloud_run_job]

This next example also shows how to pass in custom runtime configuration (in this case for ``threads_override``)
via the ``additional_run_config`` dictionary.

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_run_job_async]
    :end-before: [END howto_operator_dbt_cloud_run_job_async]

You can also trigger a dbt Cloud job without providing the ``job_id``. Instead, you can identify the job
by providing the ``project_name``, ``environment_name``, and ``job_name``.
Please note that it will only work if the above three parameters uniquely identify a job in your account
(i.e. you cannot have two jobs with the same name in the same project and environment).

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_run_job_without_job_id]
    :end-before: [END howto_operator_dbt_cloud_run_job_without_job_id]

.. _howto/operator:DbtCloudJobRunSensor:

Poll for status of a dbt Cloud Job run
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Use the :class:`~airflow.providers.dbt.cloud.sensors.dbt.DbtCloudJobRunSensor` to periodically retrieve the
status of a dbt Cloud job run and check whether the run has succeeded. This sensor provides all of the same
functionality available with the :class:`~airflow.sensors.base.BaseSensorOperator`.

In the example below, the ``run_id`` value in the example below comes from the output of a previous
DbtCloudRunJobOperator task by utilizing the ``.output`` property exposed for all operators. Also, to note,
the ``account_id`` for the task is referenced within the ``default_args`` of the example Dag.

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_run_job_sensor]
    :end-before: [END howto_operator_dbt_cloud_run_job_sensor]

Also, you can poll for status of the job run asynchronously using ``deferrable`` mode. In this mode, worker
slots are freed up while the sensor is running.

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_run_job_sensor_deferred]
    :end-before: [END howto_operator_dbt_cloud_run_job_sensor_deferred]


.. _howto/operator:DbtCloudGetJobRunArtifactOperator:

Download run artifacts
~~~~~~~~~~~~~~~~~~~~~~

Use the :class:`~airflow.providers.dbt.cloud.operators.dbt.DbtCloudGetJobRunArtifactOperator` to download
dbt-generated artifacts for a dbt Cloud job run. The specified ``path`` value should be rooted at the
``target/`` directory.  Typical artifacts include ``manifest.json``, ``catalog.json``, and
``run_results.json``, but other artifacts such as raw SQL of models or ``sources.json`` can also be
downloaded.

For more information on dbt Cloud artifacts, reference
`this documentation <https://docs.getdbt.com/docs/dbt-cloud/using-dbt-cloud/artifacts>`__.

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_get_artifact]
    :end-before: [END howto_operator_dbt_cloud_get_artifact]


.. _howto/operator:DbtCloudListJobsOperator:

List jobs
~~~~~~~~~

Use the :class:`~airflow.providers.dbt.cloud.operators.dbt.DbtCloudListJobsOperator` to list
all jobs tied to a specified dbt Cloud account. The ``account_id`` must be supplied either
through the connection or supplied as a parameter to the task.

If a ``project_id`` is supplied, only jobs pertaining to this project id will be retrieved.

For more information on dbt Cloud list jobs, reference
`this documentation <https://docs.getdbt.com/dbt-cloud/api-v2#tag/Jobs/operation/listJobsForAccount>`__.

.. exampleinclude:: /../tests/system/dbt/cloud/example_dbt_cloud.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_dbt_cloud_list_jobs]
    :end-before: [END howto_operator_dbt_cloud_list_jobs]
