This container can be pulled via:
  docker pull registry.opensuse.org/home/dcassany/elemental/teal52/15.3/rancher/elemental-operator:0.4.3
  docker pull registry.opensuse.org/home/dcassany/elemental/teal52/15.3/rancher/elemental-operator:0.4.3-15.8
  docker pull registry.opensuse.org/home/dcassany/elemental/teal52/15.3/rancher/elemental-operator:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.