johnhoran opened a new issue, #59366:
URL: https://github.com/apache/airflow/issues/59366
### Apache Airflow Provider(s)
cncf-kubernetes
### Versions of Apache Airflow Providers
_No response_
### Apache Airflow version
2.11
### Operating System
linux
### Deployment
Official Apache Airflow Helm Chart
### Deployment details
_No response_
### What happened
I constructed a fairly simple dag
```python
"""Example DAG demonstrating the use of the KubernetesPodOperator."""
from datetime import datetime, timedelta
from airflow import DAG
from airflow.providers.cncf.kubernetes.operators.pod import
KubernetesPodOperator
from airflow.providers.cncf.kubernetes.callbacks import
KubernetesPodOperatorCallback
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from airflow.providers.cncf.kubernetes.callbacks import client_type
class MyCallback(KubernetesPodOperatorCallback):
@classmethod
def progress_callback(cls, *, line: str, client: "client_type", mode:
str, **kwargs) -> None:
print(">>>" + line)
with DAG(
dag_id="example_kubernetes_operator",
schedule=None,
start_date=datetime(2021, 1, 1),
tags=["example"],
doc_md=__doc__,
dagrun_timeout=timedelta(minutes=60),
) as dag:
k = KubernetesPodOperator(
image="ubuntu:16.04",
cmds=["bash", "-cx"],
arguments=["for i in {1..20}; do echo \"Hi $i\"; sleep 1; done"],
labels={"foo": "bar"},
name="airflow-test-pod",
task_id="task",
# deferrable=True,
# logging_interval=2,
callbacks=MyCallback
)
```
From this I expect to see both the log lines from KPO as well as the lines
repeated from my print statement in the callback, but instead I get the regular
KPO output and then the same line repeated over and over
`>>>2025-12-12T13:14:33.549732798Z + for i in '{1..20}'`, which was the first
line from KPO.
I tried going back to older versions thinking a bug had been introduced
somewhere, but I went all the way back to
"apache-airflow-providers-cncf-kubernetes==7.14.0", and still couldn't get
proper output.
### What you think should happen instead
_No response_
### How to reproduce
-
### Anything else
_No response_
### Are you willing to submit PR?
- [x] 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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