| # -*- coding: utf-8 -*- |
| # |
| # 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 |
| # |
| # 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. |
| |
| from airflow import utils |
| from airflow import DAG |
| from airflow.operators.dummy_operator import DummyOperator |
| from datetime import datetime, timedelta |
| |
| now = datetime.now() |
| now_to_the_hour = (now - timedelta(0, 0, 0, 0, 0, 3)).replace(minute=0, second=0, microsecond=0) |
| START_DATE = now_to_the_hour |
| DAG_NAME = 'test_dag_v1' |
| |
| default_args = { |
| 'owner': 'airflow', |
| 'depends_on_past': True, |
| 'start_date': utils.dates.days_ago(2) |
| } |
| dag = DAG(DAG_NAME, schedule_interval='*/10 * * * *', default_args=default_args) |
| |
| run_this_1 = DummyOperator(task_id='run_this_1', dag=dag) |
| run_this_2 = DummyOperator(task_id='run_this_2', dag=dag) |
| run_this_2.set_upstream(run_this_1) |
| run_this_3 = DummyOperator(task_id='run_this_3', dag=dag) |
| run_this_3.set_upstream(run_this_2) |