This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/helm:3
  docker pull registry.opensuse.org/opensuse/helm:3.18
  docker pull registry.opensuse.org/opensuse/helm:3.18.2
  docker pull registry.opensuse.org/opensuse/helm:3.18.2-28.3

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.