from airflow import DAG
from datetime import datetime, timedelta
from airflow.operators import MyFirstOperator, MyFirstSensor
default_arguments = {
'owner': 'airflow',
'start_date': datetime(2020, 5, 15, 0, 0, 0),
'retries': 3,
'retry_delay': timedelta(minutes=10)
}
dag = DAG(dag_id='my_first_dag',
max_active_runs=5,
schedule_interval='0 * * * *',
default_args=default_arguments,
catchup=False)
task_1 = MyFirstOperator(task_id='task_id1', param='some random text', dag=dag)
task_2 = MyFirstSensor(task_id='task_id2', poke_interval=30, dag=dag)
task_2 >> task_1 # task_2 será executando antes da task_1
from datetime import datetime
from airflow import DAG
from airflow.operators.dummy_operator import DummyOperator
from airflow.operators import MyFirstOperator, MyFirstSensor
dag = DAG('my_test_dag',
description='Another tutorial DAG',
schedule_interval='0 12 * * *',
start_date=datetime(2017, 3, 20),
catchup=False)
sensor_task = MyFirstSensor(task_id='my_sensor_task',
poke_interval=30,
dag=dag)
dummy_task = DummyOperator(task_id='dummy_task', dag=dag)
operator_task = MyFirstOperator(my_operator_param='This is a test.',
task_id='my_first_operator_task',
dag=dag)
sensor_task >> dummy_task >> operator_task
from datetime import datetime
from airflow import DAG
from airflow.operators.dummy_operator import DummyOperator
from airflow.operators import MyFirstOperator, MyFirstSensor
def print_hello():
return 'Hello world MM!'
dag = DAG('hello_world',
description='Simple tutorial DAG',
schedule_interval='0 12 * * *',
start_date=datetime(2020, 5, 1),
catchup=False)
dummy_operator = DummyOperator(task_id='dummy_task', retries=3, dag=dag)
sensor_task = MyFirstSensor(task_id='my_sensor_task',
poke_interval=30,
dag=dag,
mode='reschedule')
hello_operator = MyFirstOperator(my_operator_param='This is a test',
task_id='my_first_operator_task',
dag=dag)
dummy_operator >> sensor_task >> hello_operator