This container can be pulled via:
  docker pull registry.opensuse.org/kernel/tools/images/sle_15_sp7/kbuild:15.7
  docker pull registry.opensuse.org/kernel/tools/images/sle_15_sp7/kbuild:15.7.3.30
  docker pull registry.opensuse.org/kernel/tools/images/sle_15_sp7/kbuild:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.