Access configurable values in emberjs ember-cli

application.js

# app/adapters/application.js
import DS from 'ember-data';
import config from '../config/environment';

export default DS.ActiveModelAdapter.extend({
  host: config.apiUrl
});

environment.js

  if (environment === 'production') {
    ENV.apiUrl = 'http://cabbyguide.herokuapp.com/api/v1';
    ENV.production = true;
  }