Feature Overview (aka. Goal Summary)  

Add a clear, non-bypassable warning when enabling TechPreviewNoUpgrade feature set to inform users about the lack of rollback support and production readiness.

Goals (aka. expected user outcomes)

Users will be explicitly warned about the implications of enabling TechPreview features, preventing accidental production use and subsequent requests for unsupported rollback operations

Requirements (aka. Acceptance Criteria):

• A clear, non-bypassable warning message must be displayed when TechPreviewNoUpgrade or any TechPreview feature gate is selected during Day-1 cluster installation (e.g., via openshift-install or assisted installer).

• A clear, non-bypassable warning message must be displayed when updating the FeatureGate resource in a running cluster on Day-2.

• The warning message should state: "⚠️ You are enabling TechPreview features. These are not supported for production use. Once enabled, they cannot be rolled back or selectively removed. The only recovery path is to destroy and recreate the cluster. Proceed only if this is acceptable."

• The system should prevent users from proceeding without acknowledging the warning.

Anyone reviewing this Feature needs to know which deployment configurations that the Feature will apply to (or not) once it's been completed.  Describe specific needs (or indicate N/A) for each of the following deployment scenarios. For specific configurations that are out-of-scope for a given release, ensure you provide the OCPSTRAT (for the future to be supported configuration) as well.

Customer Considerations

Provide any additional customer-specific considerations that must be made when designing and delivering the Feature.  Initial completion during Refinement status.

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Documentation Considerations

Provide information that needs to be considered and planned so that documentation will meet customer needs.  If the feature extends existing functionality, provide a link to its current documentation. Initial completion during Refinement status.

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Interoperability Considerations

Which other projects, including ROSA/OSD/ARO, and versions in our portfolio does this feature impact?  What interoperability test scenarios should be factored by the layered products?  Initial completion during Refinement status.

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