No warning displayed on kubectl apply with enforcementAction warn

[globalundo]

What steps did you take and what happened:

• OPA Gatekeeper is installed in the k8s cluster
• A constraint has been created
• On enforcementAction: deny, resource admission is denied on constraint violation, with a proper message on kubectl apply
• On enforcementAction: warn, no warning message is displayed on kubectl apply, even if resources violates the constraint/

What did you expect to happen: A warning message would be printed according to the Warn enforcement action.

Anything else you would like to add:

• Gatekeeper has been deployed via gatekeeper.yaml
• A proper message is printed when enforcementAction is set to deny
• If --log-denies is set, a constrain violation get logged correctly on both warn and deny.
• Based of kubectl --v=9 and Gatekeeper’s --logdenies, a constrain violation gets logged in stderr of the gatekeeper’s pod but kubectl does not get a HTTP 299 response but 201 instead
• Any debugging tips or requests for an additional information are welcome

Environment:

• Gatekeeper version: 3.13.0
• Kubernetes version:

Client Version: v1.27.11
Kustomize Version: v5.0.1
Server Version: v1.27.9