This container can be pulled via:
  docker pull registry.opensuse.org/uyuni/monitoring-alertmanager:0.28.1
  docker pull registry.opensuse.org/uyuni/monitoring-alertmanager:2026.06
  docker pull registry.opensuse.org/uyuni/monitoring-alertmanager:2026.06.7.16.uyuni6
  docker pull registry.opensuse.org/uyuni/monitoring-alertmanager:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.