This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/images/containerfile/metallb-speaker:latest
  docker pull registry.opensuse.org/isv/suse/edge/images/containerfile/metallb-speaker:v0.13.10
  docker pull registry.opensuse.org/isv/suse/edge/images/containerfile/metallb-speaker:v0.13.10-2.5

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.