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  1. OpenShift Node
  2. OCPNODE-3718

Enable autoSizingReserved by default for new OCP clusters

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    • Enable autoSizingReserved by default for new OCP clusters
    • Product / Portfolio Work
    • OCPSTRAT-2483Only for CNV + new cluster starting OCP 4.21 (Enabled autoSizingReserved by default)
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      OCP/Telco Definition of Done
      Epic Template descriptions and documentation.

      <--- Cut-n-Paste the entire contents of this description into your new Epic --->

      Epic Goal

      • Enable the "AutoSizingReserved" field of the "KubeletConfig" object to "true" for all the new OCP cluster installations

      Why is this important?

      • Enabling this field to true by default would set the optimal system reserved values for the system resources like cpu, memory

      Scenarios

      1. Resources like cpu, memory should be optimally allocated to the system components to avoid the resource starvation which leads to the node failure.
      2. The AutoSizingReserved feature when enabled, calculates the system-reserved resources based on the installed CPU, memory on each node.

      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. Reviews from MCO team as the code changes would be mainly in machine-config-operator code base (i.e. KubeletConfigController)
      2. CNV team's help on testing this feature on CNV clusters
      3.  

      Previous Work (Optional):

      1. https://access.redhat.com/solutions/5843241 

      Open questions::

      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>

              svanka@redhat.com Sai Ramesh Vanka
              svanka@redhat.com Sai Ramesh Vanka
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                Created:
                Updated: