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#
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#
# http://www.apache.org/licenses/LICENSE-2.0
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"""
This dag only runs some simple tasks to test Airflow's task execution.
"""
from datetime import datetime, timedelta
from airflow.models.dag import DAG
from airflow.operators.dummy_operator import DummyOperator
from airflow.utils.dates import days_ago
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': 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)