This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/kube-apiserver:latest
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/kube-apiserver:v1.31.2
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/kube-apiserver:v1.31.2-6.42

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.