Node status flapping between Ready and NotReady during cluster installation - F5 load balancer

Solution Verified - Updated -

Issue

  • Nodes intermittently change status between Ready and NotReady during OpenShift or Kubernetes cluster installation.
  • Cluster installation fails to complete or proceeds with instability in node communication.
  • The cluster installation eventually finished after several hours.

Environment

  • Red Hat OpenShift Container Platform 4.x
  • F5 load balancer

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