如何在Airflow中将参数传递给PythonOperator
我刚开始使用Airflow，任何人都可以告诉我如何将参数传递给PythonOperator，如下所示：
t5_send_notification = PythonOperator(
task_id='t5_send_notification',
provide_context=True,
python_callable=SendEmail,
op_kwargs=None,
#op_kwargs=(key1='value1', key2='value2'),
dag=dag,)
def SendEmail(**kwargs):
msg = MIMEText("The pipeline for client1 is completed, please check.")
msg['Subject'] = "xxxx"
msg['From'] = "xxxx"
......
s = smtplib.SMTP('localhost')
s.send_message(msg)
s.quit()我希望能够将一些参数传递给可t5_send_notification调用的SendEmail，理想情况下，我想将完整的日志和/或部分日志（实际上是从kwargs）附加到要发送的电子邮件中，猜测这t5_send_notification是收集这些信息的地方。
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将dict对象传递给op_kwargs
使用键从python callable中的kwargs dict 访问它们的值def SendEmail(**kwargs):
print(kwargs['key1']) print(kwargs['key2']) msg = MIMEText("The pipeline for client1 is completed, please check.") msg['Subject'] = "xxxx" msg['From'] = "xxxx" ...... s = smtplib.SMTP('localhost') s.send_message(msg) s.quit()t5_send_notification = PythonOperator(
task_id='t5_send_notification', provide_context=True, python_callable=SendEmail, op_kwargs={'key1': 'value1', 'key2': 'value2'}, dag=dag,)
t5_send_notification = PythonOperator(
task_id='t5_send_notification', provide_context=True, python_callable=SendEmail, op_kwargs={my_param='value1'}, dag=dag,)
def SendEmail(my_param,**kwargs):
print(my_param) #'value_1' msg = MIMEText("The pipeline for client1 is completed, please check.") msg['Subject'] = "xxxx" msg['From'] = "xxxx" ...... s = smtplib.SMTP('localhost') s.send_me2019-07-17 23:29:40赞同 展开评论 打赏
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