要查看Airflow主DAG的代码,可以使用以下方法:
使用命令行界面(CLI):
airflow list_dags
airflow list_tasks <主DAG名称>
使用Airflow的Web UI:
以下是一个示例,展示如何使用CLI查看Airflow主DAG的代码:
运行以下命令以获取Airflow中的所有DAG的列表:
airflow list_dags
输出示例:
----------------------------------------------------
DAGS
----------------------------------------------------
example_dag
test_dag
...
选择要查看的主DAG(例如,"example_dag"),并运行以下命令以查看主DAG的代码:
airflow list_tasks example_dag
输出示例:
[2022-01-01 12:00:00,000] {dagbag.py:496} INFO - Filling up the DagBag from /path/to/dags
[
{
"task_id": "task_1",
"owner": "airflow",
"start_date": null,
"end_date": null,
"duration": null,
"state": null,
"execution_date": null,
"hostname": null,
"unixname": null,
"job_id": null,
"pool": null,
"priority_weight": null,
"queue": null,
"queued_dttm": null,
"try_number": null,
"max_tries": null,
...
},
{
"task_id": "task_2",
"owner": "airflow",
"start_date": null,
"end_date": null,
"duration": null,
"state": null,
"execution_date": null,
"hostname": null,
"unixname": null,
"job_id": null,
"pool": null,
"priority_weight": null,
"queue": null,
"queued_dttm": null,
"try_number": null,
"max_tries": null,
...
},
...
]
通过上述方法,您可以查看Airflow主DAG的代码,并了解DAG中的任务及其属性。