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      Feature Overview

      • Kubernetes offers different ways to consume, one could request persistent volumes that survive pod termination or ask for a ephemeral storage space that will be consumed during the lifetime of the pod.
      • This feature tracks the improvements around ephemeral storage as some workloads rely on reliable temporary storage space such as batch jobs, caching services or any app that does not care whether the data is stored persistently across restarts



      As described in the kubernetes "ephemeral volumes" documentation this features tracks GA and improvements in

      OCPPLAN-9193 Implemented local ephemeral capacity management as well as CSI Generic ephemeral volume. This feature tracks the remaining work to GA CSI ephemeral in-inline volume, specially the admission plugin to make the feature secure and prevent any insecure driver from using it. Ephemeral in-line is required by some CSI as key feature to operate (e.g SecretStore CSI), ODF is also planning to GA ephemeral in-line with ceph CSI. 


      Requirement Notes isMvp?
      CI - MUST be running successfully with test automation This is a requirement for ALL features. YES
      Release Technical Enablement Provide necessary release enablement details and documents. YES

      Use Cases

      This Section:

      • As an OCP user I want to consume ephemeral storage for my workload
      • As an OCP user I would like to include my PV definition directly in my app definition
      • As an OCP admin I would like to offer ephemeral volumes to my users though CSI
      • As a partner I would like to onboard a driver that relies on CSI inline volumes

      Customer Considerations

      • Make sure each ephemeral volume option is clearly identified and documented for each purpose.
      • Make sure we highlight ephemeral volume options that require a specific driver support

            rh-gs-gcharot Gregory Charot
            rh-gs-gcharot Gregory Charot
            Penghao Wang Penghao Wang
            Lisa Pettyjohn Lisa Pettyjohn
            Jonathan Dobson Jonathan Dobson
            Eric Rich Eric Rich
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