This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp7/containerfile/suse/kubectl:1.30
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp7/containerfile/suse/kubectl:1.30.6
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp7/containerfile/suse/kubectl:1.30.6-4.17

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.