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November 9, 2019 12:16
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airflow dags and tasks
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def fn_superman(): | |
print("取得使用者的閱讀紀錄") | |
print("去漫畫網站看有沒有新的章節") | |
print("跟紀錄比較,有沒有新連載?") | |
# Murphy's Law | |
accident_occur = time.time() % 2 > 1 | |
if accident_occur: | |
print("\n天有不測風雲,人有旦夕禍福") | |
print("工作遇到預期外狀況被中斷\n") | |
return | |
new_comic_available = time.time() % 2 > 1 | |
if new_comic_available: | |
print("寄 Slack 通知") | |
print("更新閱讀紀錄") | |
else: | |
print("什麼都不幹,工作順利結束") | |
# 跟crontab前面時間相同, 也可以用crontab時間"0 0 * * *", 或者@daily | |
# 要用timedelta,要先import | |
with DAG("firstwork", default_args=default_args, schedule_interval=timedelta(days=1)) as dag: | |
superman_task = PythonOperator( | |
task_id='superman_task', | |
python_callable=fn_superman | |
) |
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