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12_manually_defined_dag.py
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12_manually_defined_dag.py
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from airflow.models import DAG
from datetime import datetime
import jinja2
from airflow.operators.python import PythonOperator
from airflow.operators.bash import BashOperator
from airflow.operators.dummy import DummyOperator
default_args = {
"Owner":"Tinmar",
"start_date":datetime(2023,1,14)
}
def hola(**kwargs):
print(kwargs['dag_run'].conf)
# print(kwargs['dag_run'].conf['variable'])
with DAG(
'12_manually_defined_dag',
catchup=False,
default_args=default_args,
schedule_interval=None,
tags=['Curso 2', 'Apache_Airflow'],
template_undefined=jinja2.Undefined
) as dag:
start = DummyOperator(task_id="start")
task_1 = BashOperator(
task_id='task_1',
bash_command='echo {{ dag_run.conf["variable_prueba"] or 1000 }}'
)
task_2 = PythonOperator(
task_id='task_2',
python_callable=hola
)
end = DummyOperator(task_id='end')
start >> task_1 >> task_2 >> end