| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| """Example DAG demonstrating the usage of the SubDagOperator.""" |
| from __future__ import annotations |
| |
| # [START example_subdag_operator] |
| import datetime |
| |
| from airflow import DAG |
| from airflow.example_dags.subdags.subdag import subdag |
| from airflow.operators.empty import EmptyOperator |
| from airflow.operators.subdag import SubDagOperator |
| |
| DAG_NAME = "example_subdag_operator" |
| |
| with DAG( |
| dag_id=DAG_NAME, |
| default_args={"retries": 2}, |
| start_date=datetime.datetime(2022, 1, 1), |
| schedule="@once", |
| tags=["example"], |
| ) as dag: |
| |
| start = EmptyOperator( |
| task_id="start", |
| ) |
| |
| section_1 = SubDagOperator( |
| task_id="section-1", |
| subdag=subdag(DAG_NAME, "section-1", dag.default_args), |
| ) |
| |
| some_other_task = EmptyOperator( |
| task_id="some-other-task", |
| ) |
| |
| section_2 = SubDagOperator( |
| task_id="section-2", |
| subdag=subdag(DAG_NAME, "section-2", dag.default_args), |
| ) |
| |
| end = EmptyOperator( |
| task_id="end", |
| ) |
| |
| start >> section_1 >> some_other_task >> section_2 >> end |
| # [END example_subdag_operator] |