public static void main(String[] args) {
        Map<String, Object> map = new HashMap<>();
        map.put(DSS_ENV_LABEL_KEY, "dev");
        EnvDSSLabel label = (EnvDSSLabel) LabelBuilderFactoryContext.getLabelBuilderFactory().getLabels(map).get(0);
        System.out.println("label: " + label.getEnv());
    }
Used to mark the env of this micro-services.
dss-commons/dss-common/src/main/java/com/webank/wedatasphere/dss/common/label/EnvDSSLabel.java