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#
# Licensed to the Apache Software Foundation (ASF) under one
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# 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
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"""
This dag tests performance of simple bash commands executed with Airflow.
"""
from __future__ import annotations
import datetime
from airflow.models import DAG
from airflow.operators.bash_operator import BashOperator
args = {
"owner": "airflow",
"start_date": datetime.datetime(2022, 1, 1),
}
dag = DAG(
dag_id="perf_dag_1",
default_args=args,
schedule="@daily",
dagrun_timeout=datetime.timedelta(minutes=60),
)
task_1 = BashOperator(
task_id="perf_task_1",
bash_command='sleep 5; echo "run_id={{ run_id }} | dag_run={{ dag_run }}"',
dag=dag,
)
for i in range(2, 5):
task = BashOperator(
task_id=f"perf_task_{i}",
bash_command="""
sleep 5; echo "run_id={{ run_id }} | dag_run={{ dag_run }}"
""",
dag=dag,
)
task.set_upstream(task_1)
if __name__ == "__main__":
dag.cli()