quentin-sommer opened a new issue, #60229:
URL: https://github.com/apache/airflow/issues/60229
### Apache Airflow Provider(s)
cncf-kubernetes
### Versions of Apache Airflow Providers
apache-airflow-providers-cncf-kubernetes==10.9.0
### Apache Airflow version
2.10.5
### Operating System
linux
### Deployment
Google Cloud Composer
### Deployment details
composer-2.16.1-airflow-2.10.5
### What happened
When using `GKEStartJobOperator` the job name that is generated doesn't
strip `_` characters, leading to a kubernetes server error response:
```
[2026-01-07, 11:54:30 EST] {kubernetes.py:568} ERROR - Exception when
attempting to create Namespaced Job:
{
"apiVersion": "batch/v1",
"kind": "Job",
"metadata": {
"annotations": {},
"labels": {},
"name": "job-cloud_composer_task_export_answers_stats-3gxv44tg",
"namespace": "data-science"
},
}
// actual error
{
"kind": "Status",
"apiVersion": "v1",
"metadata": {},
"status": "Failure",
"message": "Job.batch
\"job-cloud_composer_task_export_answers_stats-3gxv44tg\" is invalid:
metadata.name: Invalid value:
\"job-cloud_composer_task_export_answers_stats-3gxv44tg\": a lowercase RFC 1123
subdomain must consist of lower case alphanumeric characters, '-' or '.', and
must start and end with an alphanumeric character (e.g. 'example.com', regex
used for validation is
'[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')",
"reason": "Invalid",
"details": {
"name": "job-cloud_composer_task_export_answers_stats-3gxv44tg",
"group": "batch",
"kind": "Job",
"causes": [
{
"reason": "FieldValueInvalid",
"message": "Invalid value:
\"job-cloud_composer_task_export_answers_stats-3gxv44tg\": a lowercase RFC 1123
subdomain must consist of lower case alphanumeric characters, '-' or '.', and
must start and end with an alphanumeric character (e.g. 'example.com', regex
used for validation is
'[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')",
"field": "metadata.name"
}
]
},
"code": 422
}
```
The regex provided in the stacktrace:
```
[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')
```
Doesn't validate the job name:
```
job-cloud_composer_task_export_answers_stats-3gxv44tg
```
Our task names use underscores as it's the python convetion
### What you think should happen instead
the pod operator
https://github.com/apache/airflow/blob/2daadf4abfa7c93c128229ca8028a818c0ddfad5/providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/operators/pod.py#L671
calls `_set_name` which replaces invalid chars by `-`
but the job operator
https://github.com/apache/airflow/blob/2daadf4abfa7c93c128229ca8028a818c0ddfad5/providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/operators/job.py#L190
doesn't call set name, leading to invalid names being preserved.
The actual names come from this function:
https://github.com/apache/airflow/blob/2daadf4abfa7c93c128229ca8028a818c0ddfad5/providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/kubernetes_helper_functions.py#L125
### How to reproduce
Use `GKEStartJobOperator` or KubernetesStartJobOperator with a task id
containing a `_`
### Anything else
I'm willing to submit a fix and I'm already prepping one
### 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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