Epic Goal

The openshift-sdn CNI plug-in is sunsetting according to the following progression:

1. deprecation notice delivered at 4.14 (Release Notes, What's Next presentation)
2. removal as an install-time option at 4.15+
3. removal as an option and EOL support at 4.17 GA

Why is this important?

All development effort is directed to the default primary CNI plug-in, ovn-kubernetes, which has feature parity with the older openshift-sdn CNI plug-in that has been feature frozen for the entire 4.x timeframe. In order to best serve our customers now and in the future, we are reducing our support footprint to the dominant plug-in, only. 

Acceptance Criteria

• CI - MUST be running successfully with tests automated
• Release Technical Enablement - Provide necessary release enablement details and documents.
• The openshift-sdn CNI plug-in will no longer be an install-time option for newly installed 4.15+ clusters across installation options.
• Customer clusters currently using openshift-sdn that upgrade to 4.15 or 4.16 with openshift-sdn will remain fully supported.
• EUS customers using openshift-sdn on an earlier release (e.g. 4.12 or 4.14) will still be able to upgrade to 4.16 and receive full support of the openshift-sdn plug-in.

Open questions::

• Will clusters using openshift-sdn and upgrading from earlier versions to 4.15 and 4.16 still be supported?
  • YES
• My customer has a hard requirement for the ability to install openshift-sdn 4.15 clusters. Is there any exceptions to support that?
  • Customers can file a Support Exception for consideration, and the reason for the requirement (expectation: rare) must be clarified.

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>