This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/flannel:0.24.2
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/flannel:0.24.2-9.73
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/flannel:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.