Add webhook validation for SparkConnect CRD #2848
Description
What feature you would like to be added?
The Spark Operator currently includes webhook validation for resources such as SparkApplication, but similar validation is not yet implemented for the SparkConnect CRD.
To ensure consistency across Spark-related CRDs and to centralize API validation at the controller level, we should introduce webhook validation for SparkConnect as well.
Why is this needed?
This would:
- Align SparkConnect behavior with existing Spark CRDs
- Prevent invalid resource specifications at admission time
- Allow SDK-side validation logic to be simplified or removed
Describe the solution you would like
No response
Describe alternatives you have considered
No response
Additional context
This was discussed during the development of the SparkClient API in Kubeflow SDK where manual validation was identified as better suited for controller-side enforcement. See kubeflow/sdk#225 (comment).
cc @andreyvelich @ChenYi015 @Shekharrajak
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