This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/tomcat:9-2.9
  docker pull registry.opensuse.org/opensuse/tomcat:9.0-2.9
  docker pull registry.opensuse.org/opensuse/tomcat:9.0.91
  docker pull registry.opensuse.org/opensuse/tomcat:9.0.91-2.9

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.