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  1. OpenShift Container Platform (OCP) Strategy
  2. OCPSTRAT-246

Expose routing and subnet details from IPAM CNI for SR-IOV devices to pod

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      Feature Overview (aka. Goal Summary)  

      Expose routing and subnet details from IPAM CNI for vfio-pci SR-IOV devices to Pod

      Goals (aka. expected user outcomes)

      For a vfio-pci SR-IOV device (as opposed to kernel ones), the IP stack is implemented in the application itself, likely with the help of DPDK libraries. This implies that the application running inside the Pod must me aware of of what subnet prefix to use and what routes should be set up.
      The information on subnet prefix and default gw (and additional routes) is available in the IPAM CNI but it is currently not exposed to the application running inside the Pod.

      By exposing  all the information which is available in the IPAM CNI to the application running in the Pod directly we overcome a suboptimal way of exposing it via helm chat. 

      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.

       

      Use Cases (Optional):

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

       

      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.

       

      Out of Scope

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

       

      Background

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

       

      Customer Considerations

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

       

      Documentation Considerations

      Provide information that needs to be considered and planned so that documentation will meet customer needs.  Initial completion during Refinement status.

       

      Interoperability Considerations

      Which other projects 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.

            ddharwar@redhat.com Deepthi Dharwar
            ddharwar@redhat.com Deepthi Dharwar
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              Created:
              Updated: