subdag_operator

Example DAG demonstrating the usage of the SubDagOperator.

Airflow Fundamentals


Providers:

Run this DAG

1. Install Astronomer CLISkip if you already have the CLI

2. Initate the project:

3. Copy and paste the code below into a file in the

dags
directory.

4. Add the following to your requirements.txt file:

5. Run the DAG:

#
# 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."""
# [START example_subdag_operator]
from airflow import DAG
from airflow.example_dags.subdags.subdag import subdag
from airflow.operators.dummy import DummyOperator
from airflow.operators.subdag import SubDagOperator
from airflow.utils.dates import days_ago
DAG_NAME = 'example_subdag_operator'
args = {
'owner': 'airflow',
}
with DAG(
dag_id=DAG_NAME, default_args=args, start_date=days_ago(2), schedule_interval="@once", tags=['example']
) as dag:
start = DummyOperator(
task_id='start',
)
section_1 = SubDagOperator(
task_id='section-1',
subdag=subdag(DAG_NAME, 'section-1', args),
)
some_other_task = DummyOperator(
task_id='some-other-task',
)
section_2 = SubDagOperator(
task_id='section-2',
subdag=subdag(DAG_NAME, 'section-2', args),
)
end = DummyOperator(
task_id='end',
)
start >> section_1 >> some_other_task >> section_2 >> end
# [END example_subdag_operator]