Curls from pod to service are failing in OpenShift 4.x

Solution In Progress - Updated -

Issue

When a pod running inside an OpenShift 4 cluster calls another service running in the same platform, it is expected that service lookup will succeed. In this scenario, there are failures to complete the request when calling to the service name:

  • Curls to .
    .. fail to resolve/connect
  • Curls .
    ... DO resolve #(Note additional period at the end, declaring this an absolute lookup).
  • Curls to :
    DO resolve/connect successfully

Environment

  • Red Hat OpenShift Container Platform (RHOCP) 4.x

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