This container can be pulled via:
  docker pull registry.opensuse.org/home/dcassany/branches/elemental/staging/charts/elemental/elemental-operator:latest
  docker pull registry.opensuse.org/home/dcassany/branches/elemental/staging/charts/elemental/elemental-operator:v0.6.3
  docker pull registry.opensuse.org/home/dcassany/branches/elemental/staging/charts/elemental/elemental-operator:v0.6.3-build36.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.