Epic Goal

• The goal of this epic is to productise (test & document) the generic ephemeral volumes feature. Generic ephemeral volumes allow any CSI driver to provide ephemeral volumes to pods.

The different options to consume ephemeral volumes are available here

https://kubernetes.io/docs/concepts/storage/ephemeral-volumes/

Why is this important?

• Some customers would like to leverage their storage backend (via CSI) to host ephemeral volumes
• HostPath, emptyDir don't allow to set quotas on the ephemeral volumes which can lead to node capacity issues.
• Worker nodes may not have local large disk capacity.
• It brings value added to ephemeral volumes (snapshot, clone, etc)
•   The feature GAed upstream (1.23)
  • https://kubernetes.io/blog/2021/12/07/kubernetes-1-23-release-announcement/
  • Keep up with upstream features 

Scenarios

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Acceptance Criteria

• CI - MUST be running successfully with tests automated
• Release Technical Enablement - Provide necessary release enablement details and documents.
• ...

Dependencies (internal and external)

1. ...

Previous Work (Optional):

1. …

Open questions::

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Done Checklist

• CI - CI is running, tests are automated and merged.
• Release Enablement <link to Feature Enablement Presentation>
• DEV - Upstream code and tests merged: <link to meaningful PR or GitHub Issue>
• DEV - Upstream documentation merged: <link to meaningful PR or GitHub Issue>
• DEV - Downstream build attached to advisory: <link to errata>
• QE - Test plans in Polarion: <link or reference to Polarion>
• QE - Automated tests merged: <link or reference to automated tests>
• DOC - Downstream documentation merged: <link to meaningful PR>