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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2022/01/28 12:18:37 UTC
[GitHub] [airflow] csp98 opened a new issue #21183: Webserver "External DAG" button on ExternalTaskSensor not working when dag_id is templated
csp98 opened a new issue #21183:
URL: https://github.com/apache/airflow/issues/21183
### Apache Airflow version
2.0.2
### What happened
When an ExternalTaskSensor receives a templated dag_id , the web interface's "External DAG" button does not resolve the template, so the destination URL does not work (although the sensor correctly waits for the dag_id that the template refers to)
### What you expected to happen
The button's destination URL should point to the templated dag_id.
### How to reproduce
1. Create a DAG with an ExternalTaskSensor whose dag_id is templated
```python
@provide_session
def get_last_run_id(execution_date: datetime, session: Any, **context: Any) -> datetime:
dag_id = context['task_instance'].xcom_pull('get_idemp', key='id_emp')
while (last_run := get_last_dagrun(dag_id, session, include_externally_triggered=True)) is None:
continue
return last_run.execution_date
sensor = ExternalTaskSensor(
task_id="wait_for_dag",
external_dag_id="{{ ti.xcom_pull('get_idemp', key='id_emp') }}",
external_task_id="update_load_registry", <---------- Last DAG operator
execution_date_fn=get_last_run_id
)
```
2. Trigger the created DAG
3. Click on the ExternalTaskSensor operator
4. Click on the "External DAG" button
### Operating System
Debian GNU/Linux 10 (buster) (on KubernetesExecutor)
### Versions of Apache Airflow Providers
_No response_
### Deployment
Other 3rd-party Helm chart
### Deployment details
_No response_
### Anything else
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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[GitHub] [airflow] potiuk closed issue #21183: Webserver "External DAG" button on ExternalTaskSensor not working when dag_id is templated
Posted by GitBox <gi...@apache.org>.
potiuk closed issue #21183:
URL: https://github.com/apache/airflow/issues/21183
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[GitHub] [airflow] boring-cyborg[bot] commented on issue #21183: Webserver "External DAG" button on ExternalTaskSensor not working when dag_id is templated
Posted by GitBox <gi...@apache.org>.
boring-cyborg[bot] commented on issue #21183:
URL: https://github.com/apache/airflow/issues/21183#issuecomment-1024161351
Thanks for opening your first issue here! Be sure to follow the issue template!
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