This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/kube-proxy:latest
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/kube-proxy:v1.37.0
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/kube-proxy:v1.37.0-7.298

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.