fix: remove deprecated spec.preserveUnknownFields

[meskinemohamed]

• Remove deprecated spec.preserveUnknownFields: false from CRD definitions
• This field defaults to false in CRD v1 and is deprecated in favor of x-kubernetes-preserve-unknown-fields

Related to:

• spec.preserveUnknownFields has been deprecated in favor of x-kubernetes-preserve-unknown-fields: true in the CRD v1 gatekeeper#3996
• fix: remove deprecated spec.preserveUnknownFields gatekeeper#4276

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.56%. Comparing base (76869f8) to head (c781d4a).
⚠️ Report is 144 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #644       +/-   ##
===========================================
- Coverage   54.68%   43.56%   -11.12%     
===========================================
  Files          71       97       +26     
  Lines        5241     5380      +139     
===========================================
- Hits         2866     2344      -522     
- Misses       2073     2733      +660     
- Partials      302      303        +1     

Flag	Coverage Δ
unittests	43.56% <ø> (-11.12%)	⬇️

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[Copilot]

Pull request overview

This PR removes the deprecated spec.preserveUnknownFields field from CustomResourceDefinition (CRD) specifications. In CRD apiextensions.k8s.io/v1, this field defaults to false and has been deprecated in favor of using x-kubernetes-preserve-unknown-fields at the schema level.

• Removed preserveUnknownFields: false from ConstraintTemplate CRD definitions
• Eliminated redundant kustomize patch that was setting this deprecated field

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
constraint/pkg/schema/yaml_constant.go	Removed deprecated preserveUnknownFields: false from the CRD YAML constant string
constraint/deploy/crds.yaml	Removed deprecated preserveUnknownFields: false from the deployed CRD manifest
constraint/config/crds/kustomization.yaml	Removed the entire kustomize patch section that was setting the deprecated field, reorganizing the file structure

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

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[JaydipGabani]

@meskinemohamed these changes look good, thanks for working on this!

can you run make manifests && make generate and push the changes? After this can you replace frameworks vendor in the gatekeeper PR for the same with latest commit -

replace github.com/open-policy-agent/frameworks/constraint => https://github.com/meskinemohamed/frameworks <commit-id>

After replcaing you will need to run go mod tidy && go mod vendor and then push changes to GK pr.

[JaydipGabani]

lgtm