OpenShift 4 Authentication Operator Degraded with Reason: RouteHealthDegraded

Solution Verified - Updated -

Issue

Unable to complete installation of cluster due to the Authentication Operator being in a Degraded status:

message: 'RouteHealthDegraded: failed to GET route: dial tcp: lookup oauth-openshift.apps.openshift.example.com
on 172.30.0.10:53: no such host'

Environment

  • Red Hat OpenShift Container Platform
    • 4.x

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