DNS forwarding in OSD/ROSA clusters

Solution Unverified - Updated -

Environment

  • Red Hat OpenShift Service on AWS (ROSA)
    • 4
  • Red Hat OpenShift Dedicated (OSD)
    • 4

Issue

  • Is DNS forwarding supported in OSD/ROSA clusters?
  • How to configure the DNS forwarding in OSD or ROSA cluster.

Resolution

The DNS forwarding is possible in OSD and ROSA clusters configuring the DNS operator as explained in the Red Hat OpenShift Container Platform documentation: Using DNS forwarding.

Root Cause

The DNS forwarding is possible in OSD and ROSA.

Diagnostic Steps

Check the content of the DNS operator:

$ oc get dns.operator default -o yaml

Check the configuration in the DNS configmap:

$ oc get cm dns-default -n openshift-dns -o yaml

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