OpenLineage Macros¶

Macros included in OpenLineage plugin get integrated to Airflow’s main collections and become available for use.

They can be invoked as a Jinja template, e.g.

Lineage job & run macros¶

These macros:

lineage_job_namespace()
lineage_job_name(task_instance)
lineage_run_id(task_instance)

allow injecting pieces of run information of a given Airflow task into the arguments sent to a remote processing job. For example, SparkSubmitOperator can be set up like this:

SparkSubmitOperator(
    task_id="my_task",
    application="/script.py",
    conf={
        # separated components
        "spark.openlineage.parentJobNamespace": "{{ macros.OpenLineageProviderPlugin.lineage_job_namespace() }}",
        "spark.openlineage.parentJobName": "{{ macros.OpenLineageProviderPlugin.lineage_job_name(task_instance) }}",
        "spark.openlineage.parentRunId": "{{ macros.OpenLineageProviderPlugin.lineage_run_id(task_instance) }}",
    },
)

Lineage parent id¶

Same information, but compacted to one string, can be passed using linage_parent_id(task_instance) macro:

def my_task_function(templates_dict, **kwargs):
    parent_job_namespace, parent_job_name, parent_run_id = templates_dict["parentRun"].split("/")
    ...


PythonOperator(
    task_id="render_template",
    python_callable=my_task_function,
    templates_dict={
        # joined components as one string `<namespace>/<name>/<run_id>`
        "parentRun": "{{ macros.OpenLineageProviderPlugin.lineage_parent_id(task_instance) }}",
    },
    provide_context=False,
    dag=dag,
)