This container can be pulled via:
  docker pull registry.opensuse.org/home/antaloala/sriov-test/images/ib-sriov-cni:v1.2.1
  docker pull registry.opensuse.org/home/antaloala/sriov-test/images/ib-sriov-cni:v1.2.1-1.4

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.