This container can be pulled via:
  docker pull registry.opensuse.org/systemsmanagement/uyuni/snapshots/2022.11/containers/uyuni/proxy-tftpd:2022.11
  docker pull registry.opensuse.org/systemsmanagement/uyuni/snapshots/2022.11/containers/uyuni/proxy-tftpd:2022.11.30.6.uyuni2
  docker pull registry.opensuse.org/systemsmanagement/uyuni/snapshots/2022.11/containers/uyuni/proxy-tftpd:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.