src/config/config.js

/*
 * Copyright 2017-present Open Networking Foundation

 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at

 * http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

(function () {
  'use strict';

  // NOTE do we still need CLI args?
  // Won't be better to use NODE_ENV and the native node-yaml-config feature

  const argv = require('yargs').argv;
  const path = require('path');
  const yaml_config = require('node-yaml-config');
  const logger = require('../config/logger.js');

  // if a config file is specified in as a CLI arguments use that one
  const cfgFile = argv.config || 'config.yml';

  let config;
  try {
    logger.log('debug', `Loading ${path.join(__dirname, cfgFile)}`);
    config = yaml_config.load(path.join(__dirname, cfgFile));
    logger.log('debug', `Parsed config: ${JSON.stringify(config)}`);
  }
  catch(e) {
    logger.log('debug', `No ${cfgFile} found, using default params`);
  }

  module.exports = {
    gateway: {
      port: (config && config.gateway) ? config.gateway.port : 3000
    },
    kafka_bootstrap_servers: ( config && config.kafka_bootstrap_servers ) ?
      config.kafka_bootstrap_servers : ['cord-kafka:9092']
  };
})();