This container can be pulled via:
  docker pull registry.opensuse.org/home/favogt/bsc1198102/containerfile/bci/bci-init:15.4
  docker pull registry.opensuse.org/home/favogt/bsc1198102/containerfile/bci/bci-init:15.4.121.37

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.