This container can be pulled via:
  docker pull registry.opensuse.org/home/dcassany/elemental/charts/elemental/elemental-operator:0.4.3
  docker pull registry.opensuse.org/home/dcassany/elemental/charts/elemental/elemental-operator:0.4.3-build27.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.