How to limit the backend pool of an AWS load balancer to specific nodes in OpenShift

Solution Verified - Updated -

Issue

In an OpenShift IPI cluster, load balancers (LBs) are observed performing health checks on all nodes in the cluster, not just those labelled as infrastructure nodes, or running router pods. How can the endpoint targets be limited to just the infrastructure nodes?

Environment

  • OpenShift 4.x
  • AWS

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