Is DNS Horizontal Autoscaling Supported?

Problem

CoreDNS is running as a deployment with only a single replica. Is it possible to dynamically scale the deployment, such as with DNS Horizontal Autoscaling?

Environment

• Platform9 Managed Kubernetes - v4.2 and Higher

Answer

• Yes. DNS Horizontal Autoscaling has been verified on PMK (as per the listed versions) and may be deployed and configured following the upstream documentation.
• It is not, however, supported natively within PMK - i.e. there is no support for enabling or configuring this via our UI or Qbert API when deploying or modifying a cluster - yet.
• The feature may be more fully incorporated in the future based on feedback and support for the related idea ( PMK8-I-123).