Etcd upgrade fails with DNS clash in OCP on Azure

Solution In Progress - Updated -

Issue

  • OpenShift upgrade failed with the following error
EtcdMemberIPMigratorDegraded: unable to locate a node for peerURL=https://etcd-2.example.com:2380, dnsErrors=lookup _etcd-server-ssl._tcp.example.com on 172.30.0.10:53: no such host
  • The upgrade failed with the above error and did not proceed ahead

Environment

  • Red Hat OpenShift Container Platform
    • 4.4

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