khatthaphone/Dockerfile

## commands
mkdir nodeapp
cd nodeapp
npm init
npm install --save express

## Dockerfile
FROM node:12

WORKDIR /app

COPY package.json .
RUN npm install

COPY  . .
CMD ["npm", "run", "start"]

## index.js
const express = require('express');
const app = express();

app.get('/', (req, res) => {
    return res.send('<html><body>Sample made with ♥️</body></html>');
});

const port = process.env.port | 8080;

app.listen(port, () => {
    console.log('listing on port:', port);
});

## package.json
{
  "name": "nodeapp",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "express": "^4.17.1"
  },
  "devDependencies": {},
  "scripts": {
    "start": "node index.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC"
}
	FROM node:12

	WORKDIR /app

	COPY package.json .
	RUN npm install

	COPY . .
	CMD ["npm", "run", "start"]
	const express = require('express');
	const app = express();

	app.get('/', (req, res) => {
	return res.send('<html><body>Sample made with ♥️</body></html>');
	});

	const port = process.env.port \| 8080;

	app.listen(port, () => {
	console.log('listing on port:', port);
	});
	{
	"name": "nodeapp",
	"version": "1.0.0",
	"description": "",
	"main": "index.js",
	"dependencies": {
	"express": "^4.17.1"
	},
	"devDependencies": {},
	"scripts": {
	"start": "node index.js",
	"test": "echo \"Error: no test specified\" && exit 1"
	},
	"author": "",
	"license": "ISC"
	}