This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/prometheus:3
  docker pull registry.opensuse.org/opensuse/prometheus:3.2
  docker pull registry.opensuse.org/opensuse/prometheus:3.2.1
  docker pull registry.opensuse.org/opensuse/prometheus:3.2.1-28.110
  docker pull registry.opensuse.org/opensuse/prometheus:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.