This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/metallb/images/endpoint-copier-operator:v0.1.0
  docker pull registry.opensuse.org/isv/suse/edge/metallb/images/endpoint-copier-operator:v0.1.0-2.78

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.