This container can be pulled via:
  docker pull registry.opensuse.org/home/dcassany/branches/isv/rancher/elemental/staging/charts/rancher/elemental-operator-chart:1.6.3
  docker pull registry.opensuse.org/home/dcassany/branches/isv/rancher/elemental/staging/charts/rancher/elemental-operator-chart:1.6.3-17.1
  docker pull registry.opensuse.org/home/dcassany/branches/isv/rancher/elemental/staging/charts/rancher/elemental-operator-chart:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.