This container can be pulled via:
  docker pull registry.opensuse.org/isv/suseinfra/itpe/images/images/gitlab-runner:1.0.0
  docker pull registry.opensuse.org/isv/suseinfra/itpe/images/images/gitlab-runner:1.0.0.83.11
  docker pull registry.opensuse.org/isv/suseinfra/itpe/images/images/gitlab-runner:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.