Feature Overview (aka. Goal Summary)  

An elevator pitch (value statement) that describes the Feature in a clear, concise way.  Complete during New status.

As a cluster administrator, I would like to migrate my existing (that does not currently use Azure AD Workload Identity) cluster to use Azure AD Workload Identity

Goals (aka. expected user outcomes)

The observable functionality that the user now has as a result of receiving this feature. Include the anticipated primary user type/persona and which existing features, if any, will be expanded. Complete during New status.

Many customers would like to migrate to Azure AD Workload Identity with minimal downtime but have numerous existing clusters and an aversion to supporting two concurrent operational requirements. Therefore they would like to migrate existing Azure clusters to take advantage of using Many customers would like to migrate to Azure Managed Identity but have numerous existing clusters and an aversion to supporting two concurrent operational requirements. Therefore they would like to migrate existing Azure clusters to Managed Identity in a safe manner after they have been upgraded to a version of OCP supporting that feature (4.14+) in a safe manner after they have been upgraded to a version of OCP supporting that feature (4.14+).

Requirements (aka. Acceptance Criteria):

A list of specific needs or objectives that a feature must deliver in order to be considered complete.  Be sure to include nonfunctional requirements such as security, reliability, performance, maintainability, scalability, usability, etc.  Initial completion during Refinement status.

Provide a documented method for migration to Azure AD Workload Identity for OpenShift 4.14+ with minimal downtime, and without customers having to start over with a new cluster using AZ Workload Identity and migrating over their workload. If there is risk of workload disruptive or downtime, we will keep to inform customers of this risk and have them accept this risk.

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.

Use Cases (Optional):

Include use case diagrams, main success scenarios, alternative flow scenarios.  Initial completion during Refinement status.

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Questions to Answer (Optional):

Include a list of refinement / architectural questions that may need to be answered before coding can begin.  Initial completion during Refinement status.

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Out of Scope

High-level list of items that are out of scope.  Initial completion during Refinement status.

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Background

Provide any additional context is needed to frame the feature.  Initial completion during Refinement status.

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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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