dramis commented on issue #49887:
URL: https://github.com/apache/airflow/issues/49887#issuecomment-2864753569
I apologize, but the issue is not related to the use of variables in the
Jinja template. I ran a few tests on my side using a similar DAG and wasn't
able to reproduce the issue initially. Then I reinstalled a fresh Airflow 3
instance and added my DAGs one by one, which helped me identify the source of
the problem.
In some of my DAGs, I was using the following function to retrieve
credentials from a connection, and passing the result to a BashOperator:
```
# --- Utilities ---
def _get_credential_from_conn(conn_id: str, **op_kwargs):
conn = BaseHook.get_connection(conn_id)
return f"-u {conn.login} -p {conn.password}"
```
This worked fine in Airflow 2, but it seems to break in Airflow 3.
I've since updated those DAGs to use variable in jinja template instead, and
everything works properly.
I can also confirm that I’m seeing the same behavior reported by @zachliu,
even with just a single DAG using Variable.get() on a clean Airflow 3 instance.
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