{
  "development": {
    "username": "eli",
    "password": "",
    "database": "elitest4",
    "host": "127.0.0.1",
    "dialect": "postgres"
  },
  "test": {
    "username": "root",
    "password": null,
    "database": "database_test",
    "host": "127.0.0.1",
    "dialect": "mysql"
  },
  "production": {
    "username": "root",
    "password": null,
    "database": "database_production",
    "host": "127.0.0.1",
    "dialect": "mysql"
  }
}

'use strict';

const fs = require('fs');
const path = require('path');
const Sequelize = require('sequelize');
const basename = path.basename(__filename);
const env = process.env.NODE_ENV || 'development';
const config = require(__dirname + '/../config/config.json')[env];
const db = {};

let sequelize;
if (config.use_env_variable) {
  sequelize = new Sequelize(process.env[config.use_env_variable], config);
} else {
  sequelize = new Sequelize(config.database, config.username, config.password, config);
}

fs

FROM node:8.10.0-alpine
EXPOSE 8000
COPY . /home/app
WORKDIR /home/app
COPY package.json ./
RUN npm install
CMD ["npm", "start"]

# docker-compose.yml
version: "3"
services:
  app:
    build: .
    depends_on:
      - postgres
    ports:
      - "8000:8000"
    environment:
      - PORT=8000
      - NODE_ENV=dev
      - ENV_NAME=local
      - DATABASE_URL=postgres://postgres:user@db:5432/testdemo
  postgres:
    image: postgres:9.6.8-alpine
    expose:
      - 5432
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: user
      POSTGRES_DB: db