This container can be pulled via:
  docker pull registry.opensuse.org/home/kukuk/containerfile/mqtt-timer:1.24.0
  docker pull registry.opensuse.org/home/kukuk/containerfile/mqtt-timer:1.24.0-3.381
  docker pull registry.opensuse.org/home/kukuk/containerfile/mqtt-timer:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.