This container can be pulled via:
  docker pull registry.opensuse.org/home/antaloala/sriov-test/images/node-feature-discovery:v0.15.7
  docker pull registry.opensuse.org/home/antaloala/sriov-test/images/node-feature-discovery:v0.15.7-1.4

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.