This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/busybox:1.37.0
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/busybox:1.37.0-17.36
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/busybox:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.