This container can be pulled via:
  docker pull registry.opensuse.org/virtualization/containerfile/kubevirt/virt-exportserver:1.5.2
  docker pull registry.opensuse.org/virtualization/containerfile/kubevirt/virt-exportserver:1.5.2-Virt.1699.204.3
  docker pull registry.opensuse.org/virtualization/containerfile/kubevirt/virt-exportserver:1.5.2.Virt.1699.18.473

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.