Fix kubectl debug for JSON Enricher

[ngopalak-redhat]

What type of PR is this?

/kind bug

What this PR does / why we need it:

This PR fixes an issue where the kubectl debug command's audit logs were missing the requestUID from the JSON Log Enricher.

Previously, while kubectl exec successfully captured the requestUID by setting it as an environment variable, kubectl debug (which creates a new ephemeral container) failed to do so. This fix ensures the requestUID environment variable is correctly injected into these new containers.

Additionally, this PR includes a fix for kubectl exec's handling of the SPO_EXEC_REQUEST_UID environment variable. Instead of attempting to remove an existing variable with the same name (a rare occurrence), the code now correctly replaces its value with the appropriate requestUID.

Finally, the unit tests for the webhook have been enhanced with range-based testing to improve coverage.

Which issue(s) this PR fixes:

Does this PR have test?

Yes, Added e2e and unit test

Special notes for your reviewer:

e2e-apparmor-profile requires a rerun - The failure is not related to the PR

Does this PR introduce a user-facing change?

NONE

[k8s-ci-robot]

Hi @ngopalak-redhat. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 83.50515% with 16 lines in your changes missing coverage. Please review.

Project coverage is 25.07%. Comparing base (11d77f4) to head (a655aab).
Report is 886 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2896       +/-   ##
===========================================
- Coverage   45.50%   25.07%   -20.43%     
===========================================
  Files          79      120       +41     
  Lines        7782    20845    +13063     
===========================================
+ Hits         3541     5227     +1686     
- Misses       4099    15361    +11262     
- Partials      142      257      +115     

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[ngopalak-redhat]

/test e2e-apparmor-profile

[k8s-ci-robot]

@ngopalak-redhat: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/test e2e-apparmor-profile

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[ngopalak-redhat]

cc @haircommander @saschagrunert

[saschagrunert]

/ok-to-test

[ngopalak-redhat]

@saschagrunert / @haircommander Can you please review?

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ngopalak-redhat, saschagrunert

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• OWNERS [saschagrunert]

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