Node.js Web on Docker

Node Docker, Node JS Comments

Node.js Web on Docker

1. init Project

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npm init
npm install
git init
git add .
git -commit -m "git init"

2. Edit package.json

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{
  "name": "nodejs_docker",
  "version": "1.0.0",
  "description": "nodejs_docker",
  "main": "index.js",
  "scripts": {
    "start": "node index.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1"
  }
}

3. Install express.js

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npm install express --save

4.Creat index.js

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'use strict';

const express = require('express');

// Constants
const PORT = 8080;
const HOST = '0.0.0.0';

// App
const app = express();
app.get('/', (req, res) => {
  res.send('Hello world\n');
});

app.listen(PORT, HOST);
console.log(`Running on http://${HOST}:${PORT}`);

5. Creat Dockerfile

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FROM node:8

# Create app directory
WORKDIR /usr/src/app

# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./

RUN npm install
# If you are building your code for production
# RUN npm ci --only=production

# Bundle app source
COPY . .

EXPOSE 8080
CMD [ "npm", "start" ]

6. Build Docker Images

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docker build -t node-web-app .

7. Docker Run

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docker run -p 49160:8080 -d --name node-web-app node-web-app

8. Demo

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curl 127.0.0.1:49160

範例連結

參考