CNFCERT-1258: Add kustomize validation check

[sebrandon1]

Similar to: openshift-kni/telco-reference#433

Changes:

• Adds a quick PR check that attempts to kustomize build appropriate files. Only runs against main.
• Adds a make path for make test-kustomize which runs the script. Users can run this locally as well as there are safeguards to ensure kustomize exists first.
• Skips YAMLs that might require external plugins. See EXCLUDED_DIRS.

Example run:

$ make test-kustomize 
Checking all kustomization.yaml files can build successfully...

  ./deployment/kustomize/base: OK
  ./deployment/kustomize/overlays/default: OK
  ./deployment/kustomize/overlays/openshift: OK
  ./deployment/kustomize/overlays/openshift/rbac: OK

Summary: Checked 4 kustomization.yaml files
All kustomization files validated successfully!

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: sebrandon1
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[sebrandon1]

https://github.com/openshift-kni/mixed-cpu-node-plugin/actions/runs/18956092913/job/54133159934?pr=18 It's already passing! 🎉

[openshift-ci]

@sebrandon1: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/ci-e2e	ad5c7cb	link	true	/test ci-e2e

Full PR test history. Your PR dashboard.

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[openshift-ci-robot]

@sebrandon1: This pull request references CNFCERT-1258 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.22.0" version, but no target version was set.

Details

In response to this:

Similar to: openshift-kni/telco-reference#433

Changes:

• Adds a quick PR check that attempts to kustomize build appropriate files. Only runs against main.
• Adds a make path for make test-kustomize which runs the script. Users can run this locally as well as there are safeguards to ensure kustomize exists first.
• Skips YAMLs that might require external plugins. See EXCLUDED_DIRS.

Example run:

$ make test-kustomize 
Checking all kustomization.yaml files can build successfully...

 ./deployment/kustomize/base: OK
 ./deployment/kustomize/overlays/default: OK
 ./deployment/kustomize/overlays/openshift: OK
 ./deployment/kustomize/overlays/openshift/rbac: OK

Summary: Checked 4 kustomization.yaml files
All kustomization files validated successfully!

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 openshift-eng/jira-lifecycle-plugin repository.