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60 lines (45 loc) · 1.58 KB
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# Copyright 2021 Google LLC
# Licensed 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
# https://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.
# [START composer_grouping]
from airflow import DAG
from airflow.operators.bash import BashOperator
from airflow.operators.dummy import DummyOperator
from airflow.utils.dates import days_ago
DAG_NAME = 'all_tasks_in_one_dag'
args = {'owner': 'airflow', 'start_date': days_ago(1), 'schedule_interval': "@once"}
with DAG(dag_id=DAG_NAME, default_args=args) as dag:
start = DummyOperator(
task_id='start'
)
task_1 = BashOperator(
task_id='op-1',
bash_command=':',
dag=dag)
task_2 = BashOperator(
task_id='op-2',
bash_command=':',
dag=dag)
some_other_task = DummyOperator(
task_id='some-other-task'
)
task_3 = BashOperator(
task_id='op-3',
bash_command=':',
dag=dag)
task_4 = BashOperator(
task_id='op-4',
bash_command=':',
dag=dag)
end = DummyOperator(
task_id='end'
)
start >> [task_1, task_2] >> some_other_task >> [task_3, task_4] >> end
# [END composer_grouping]