This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/opensuse/kubectl:1.30
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/opensuse/kubectl:1.30.9
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/opensuse/kubectl:1.30.9-2.16

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.