OCP upgrades to 4.4 fail due to MCO

Solution In Progress - Updated -

Issue

  • Upgrades to 4.4 fail intermittently with degraded MCO.
  • The machine-config-controller shows the following logs:
Error syncing kubeletconfig cluster: GenerateMachineConfigsforRole failed with error failed to execute template: template: /etc/mcc/templates/common/vsphere/files/vsphere-NetworkManager-kni-conf.yaml:6:16: executing "/etc/mcc/templates/common/vsphere/files/vsphere-NetworkManager-kni-conf.yaml" at <.Infra.Status.PlatformStatus.VSphere>: nil pointer evaluating *v1.Infrastructure.Status

Environment

  • Openshift Container Platform, v4.3+
  • VSphere
  • Installation type: UPI

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