This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp6/6-1380/containerfile/suse/nginx:1.21
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp6/6-1380/containerfile/suse/nginx:1.21-35.3
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp6/6-1380/containerfile/suse/nginx:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.