This container can be pulled via:
  docker pull registry.opensuse.org/home/tinita/single-instance-openqa/containers15.6/openqa-single-instance:latest
  docker pull registry.opensuse.org/home/tinita/single-instance-openqa/containers15.6/opensuse/openqa-single-instance:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.