Cannot start or stop VMs in OpenShift Virtualization with a "missing parent template" error.

Solution Verified - Updated -

Issue

  • In OpenShift Virtualization, starting or stopping VMs fails with an error like this:

    "Internal error occurred: admission webhook \"virtualmachine-admission.ssp.kubevirt.io\" denied the request: missing parent template (key=openshift/windows2k22-server-medium)

Environment

  • OpenShift Container Platform (OCP) 4.14
  • OpenShift Virtualization 4.14

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