if versionPB, ok := md[istioVersionKey]; ok {
		version = versionPB.GetStringValue()
	}
	if shaPB, ok := md[istioProxyShaKey]; ok {
		sha = shaPB.GetStringValue()
		if shaParts := strings.Split(sha, ":"); len(shaParts) > 1 {
			sha = shaParts[1]
		}
	}

	return
}

func (c *ConfigWriter) getUserAgentVersionInfo(bootstrapDump *adminv3.BootstrapConfigDump) string {
	const (
		buildLabelKey = "build.label"