This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/prometheus:2
  docker pull registry.opensuse.org/opensuse/prometheus:2.55
  docker pull registry.opensuse.org/opensuse/prometheus:2.55.1
  docker pull registry.opensuse.org/opensuse/prometheus:2.55.1-25.38
  docker pull registry.opensuse.org/opensuse/prometheus:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.