This container can be pulled via:
  docker pull registry.opensuse.org/kubevirt/virt-exportproxy:1.8.3
  docker pull registry.opensuse.org/kubevirt/virt-exportproxy:1.8.3-1.1
  docker pull registry.opensuse.org/kubevirt/virt-exportproxy:1.8.3.5.1339

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.