This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/kube-proxy:v1.31.6
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/kubic/kube-proxy:v1.31.6-5.102

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.