How to set CoreDNS Operator into unmanaged state

Solution Verified - Updated -

Issue

  • During troubleshooting an issue Red Hat Support Engineer has requested changes be performed to the CoreDNS configurations and deployments, these configurations are controlled by the OpenShift Cluster DNS Operator, which manages most of the resources within the openshift-dns namespace.

  • To perform changes to these managed resources, the Cluster DNS Operator must be disabled first.

  • The Cluster Version Operator (CVO) manages the Cluster DNS Operator and most of the resources in the openshift-dns-operator namespace. Therefore, the Cluster DNS Operator must be removed from the CVO management before it can be disabled to allow changes to the DNS configurations.

NOTE: This should not be performed without the request of an Red Hat OpenShift Support Engineers and will result in the OpenShift Cluster in an unsupported state

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

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