"istio_version":    args.IstioVersion,
		"VM_IMAGE_NAME":    vmImageName(target),
		"VM_IMAGE_VERSION": vmImageVersion(target),
	}
	// Only needed for crane - buildx does it automagically
	if architecture != "" {
		os, arch, _ := strings.Cut(architecture, "/")
		m["TARGETARCH"] = arch
		m["TARGETOS"] = os
	}
	return m
}

func vmImageName(target string) string {
	if !strings.HasPrefix(target, "app_sidecar") {