Node.js Projects with Docker¶

Tổng hợp các loại project Node.js phổ biến với Dockerfile tương ứng.

1. Basic Node.js Application¶

Package.json¶

{
  "name": "basic-nodejs",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "start": "node index.js"
  }
}

index.js¶

console.log("Hello World from Basic Node.js!");

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

2. Express.js Web Server¶

Package.json¶

{
  "name": "express-app",
  "version": "1.0.0",
  "main": "app.js",
  "scripts": {
    "start": "node app.js"
  },
  "dependencies": {
    "express": "^4.18.0"
  }
}

app.js¶

const express = require("express");
const app = express();
const port = 3000;

app.get("/", (req, res) => {
  res.send("Hello World from Express!");
});

app.listen(port, () => {
  console.log(`Express app listening at http://localhost:${port}`);
});

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

3. Next.js Application¶

Package.json¶

{
  "name": "nextjs-app",
  "version": "1.0.0",
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start"
  },
  "dependencies": {
    "next": "^14.0.0",
    "react": "^18.0.0",
    "react-dom": "^18.0.0"
  }
}

pages/index.js¶

export default function Home() {
  return <h1>Hello World from Next.js!</h1>;
}

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build
EXPOSE 3000
CMD ["npm", "start"]

4. Nest.js Application¶

Package.json¶

{
  "name": "nestjs-app",
  "version": "1.0.0",
  "scripts": {
    "start": "nest start",
    "build": "nest build"
  },
  "dependencies": {
    "@nestjs/core": "^10.0.0",
    "@nestjs/common": "^10.0.0",
    "@nestjs/platform-express": "^10.0.0"
  }
}

src/main.ts¶

import { NestFactory } from "@nestjs/core";
import { AppModule } from "./app.module";

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  await app.listen(3000);
  console.log("Hello World from NestJS!");
}
bootstrap();

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build
EXPOSE 3000
CMD ["npm", "run", "start:prod"]

5. Fastify Application¶

Package.json¶

{
  "name": "fastify-app",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "fastify": "^4.0.0"
  }
}

server.js¶

const fastify = require("fastify")({ logger: true });

fastify.get("/", async (request, reply) => {
  return { message: "Hello World from Fastify!" };
});

const start = async () => {
  try {
    await fastify.listen({ port: 3000, host: "0.0.0.0" });
    console.log("Fastify server running on port 3000");
  } catch (err) {
    fastify.log.error(err);
    process.exit(1);
  }
};
start();

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

6. Koa.js Application¶

Package.json¶

{
  "name": "koa-app",
  "version": "1.0.0",
  "main": "app.js",
  "scripts": {
    "start": "node app.js"
  },
  "dependencies": {
    "koa": "^2.14.0"
  }
}

app.js¶

const Koa = require("koa");
const app = new Koa();

app.use(async (ctx) => {
  ctx.body = "Hello World from Koa!";
});

app.listen(3000, () => {
  console.log("Koa server running on port 3000");
});

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

7. Socket.io Application¶

Package.json¶

{
  "name": "socketio-app",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "socket.io": "^4.7.0",
    "express": "^4.18.0"
  }
}

server.js¶

const express = require("express");
const { createServer } = require("http");
const { Server } = require("socket.io");

const app = express();
const server = createServer(app);
const io = new Server(server);

app.get("/", (req, res) => {
  res.send("<h1>Hello World from Socket.io!</h1>");
});

io.on("connection", (socket) => {
  console.log("A user connected");
  socket.emit("message", "Hello from Socket.io server!");
});

server.listen(3000, () => {
  console.log("Socket.io server running on port 3000");
});

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

8. GraphQL with Apollo Server¶

Package.json¶

{
  "name": "graphql-app",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "apollo-server-express": "^3.12.0",
    "express": "^4.18.0",
    "graphql": "^16.0.0"
  }
}

server.js¶

const express = require("express");
const { ApolloServer, gql } = require("apollo-server-express");

const typeDefs = gql`
  type Query {
    hello: String
  }
`;

const resolvers = {
  Query: {
    hello: () => "Hello World from GraphQL!",
  },
};

async function startServer() {
  const app = express();
  const server = new ApolloServer({ typeDefs, resolvers });

  await server.start();
  server.applyMiddleware({ app });

  app.listen(3000, () => {
    console.log(
      `GraphQL server ready at http://localhost:3000${server.graphqlPath}`
    );
  });
}

startServer();

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

9. REST API with Express + MongoDB¶

Package.json¶

{
  "name": "rest-api-mongo",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "express": "^4.18.0",
    "mongoose": "^7.0.0",
    "cors": "^2.8.5"
  }
}

server.js¶

const express = require("express");
const mongoose = require("mongoose");
const cors = require("cors");

const app = express();
app.use(cors());
app.use(express.json());

// Simple in-memory data for demo
let users = [{ id: 1, name: "Hello World User" }];

app.get("/api/users", (req, res) => {
  res.json(users);
});

app.get("/", (req, res) => {
  res.send("Hello World from REST API!");
});

app.listen(3000, () => {
  console.log("REST API server running on port 3000");
});

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

10. TypeScript Node.js Application¶

Package.json¶

{
  "name": "typescript-app",
  "version": "1.0.0",
  "main": "dist/index.js",
  "scripts": {
    "build": "tsc",
    "start": "node dist/index.js",
    "dev": "ts-node src/index.ts"
  },
  "dependencies": {
    "express": "^4.18.0"
  },
  "devDependencies": {
    "@types/express": "^4.17.0",
    "@types/node": "^20.0.0",
    "typescript": "^5.0.0",
    "ts-node": "^10.9.0"
  }
}

src/index.ts¶

import express from "express";

const app = express();
const port = 3000;

app.get("/", (req, res) => {
  res.send("Hello World from TypeScript!");
});

app.listen(port, () => {
  console.log(`TypeScript app listening at http://localhost:${port}`);
});

tsconfig.json¶

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "commonjs",
    "outDir": "./dist",
    "rootDir": "./src",
    "strict": true,
    "esModuleInterop": true
  }
}

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
COPY tsconfig.json ./
RUN npm install
COPY src ./src
RUN npm run build
EXPOSE 3000
CMD ["npm", "start"]

11. Microservice với Redis¶

Package.json¶

{
  "name": "microservice-redis",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "express": "^4.18.0",
    "redis": "^4.6.0"
  }
}

server.js¶

const express = require("express");
const redis = require("redis");

const app = express();
const client = redis.createClient({
  host: process.env.REDIS_HOST || "localhost",
  port: process.env.REDIS_PORT || 6379,
});

app.get("/", async (req, res) => {
  try {
    await client.set("message", "Hello World from Microservice with Redis!");
    const message = await client.get("message");
    res.json({ message });
  } catch (error) {
    res.json({ message: "Hello World from Microservice!" });
  }
});

app.listen(3000, () => {
  console.log("Microservice running on port 3000");
});

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

12. WebSocket Server¶

Package.json¶

{
  "name": "websocket-server",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "ws": "^8.14.0"
  }
}

server.js¶

const WebSocket = require("ws");

const wss = new WebSocket.Server({ port: 3000 });

wss.on("connection", function connection(ws) {
  console.log("Client connected");

  ws.send("Hello World from WebSocket Server!");

  ws.on("message", function incoming(message) {
    console.log("received: %s", message);
    ws.send(`Echo: ${message}`);
  });

  ws.on("close", function close() {
    console.log("Client disconnected");
  });
});

console.log("WebSocket server running on port 3000");

Dockerfile¶

FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

Docker Compose Examples¶

Basic Multi-Service Setup¶

version: "3.8"
services:
  express-app:
    build: ./express-app
    ports:
      - "3001:3000"

  nextjs-app:
    build: ./nextjs-app
    ports:
      - "3002:3000"

  api-service:
    build: ./rest-api-mongo
    ports:
      - "3003:3000"
    depends_on:
      - mongodb

  mongodb:
    image: mongo:latest
    ports:
      - "27017:27017"

  redis:
    image: redis:alpine
    ports:
      - "6379:6379"

Production-Ready Setup¶

version: "3.8"
services:
  app:
    build:
      context: .
      dockerfile: Dockerfile.prod
    restart: unless-stopped
    environment:
      - NODE_ENV=production
    ports:
      - "80:3000"
    depends_on:
      - db
      - redis

  db:
    image: postgres:15-alpine
    restart: unless-stopped
    environment:
      POSTGRES_DB: myapp
      POSTGRES_USER: user
      POSTGRES_PASSWORD: password
    volumes:
      - postgres_data:/var/lib/postgresql/data

  redis:
    image: redis:alpine
    restart: unless-stopped

volumes:
  postgres_data:

Optimization Tips¶

Multi-stage Dockerfile¶

# Build stage
FROM node:18-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production

# Production stage
FROM node:18-alpine AS production
WORKDIR /app
COPY --from=builder /app/node_modules ./node_modules
COPY . .
EXPOSE 3000
USER node
CMD ["npm", "start"]

.dockerignore¶

node_modules
npm-debug.log
.git
.gitignore
README.md
.env
.nyc_output
coverage
.cache

Tất cả các project trên đều có thể build và chạy với Docker. Mỗi project đại diện cho một pattern phổ biến trong Node.js development.

Node.js Projects with Docker¶

1. Basic Node.js Application¶

Package.json¶

index.js¶

Dockerfile¶

2. Express.js Web Server¶

Package.json¶

app.js¶

Dockerfile¶

3. Next.js Application¶

Package.json¶

pages/index.js¶

Dockerfile¶

4. Nest.js Application¶

Package.json¶

src/main.ts¶

Dockerfile¶

5. Fastify Application¶

Package.json¶

server.js¶

Dockerfile¶

6. Koa.js Application¶

Package.json¶

app.js¶

Dockerfile¶

7. Socket.io Application¶

Package.json¶

server.js¶

Dockerfile¶

8. GraphQL with Apollo Server¶

Package.json¶

server.js¶

Dockerfile¶

9. REST API with Express + MongoDB¶

Package.json¶

server.js¶

Dockerfile¶

10. TypeScript Node.js Application¶

Package.json¶

src/index.ts¶

tsconfig.json¶

Dockerfile¶

11. Microservice với Redis¶

Package.json¶

server.js¶

Dockerfile¶

12. WebSocket Server¶

Package.json¶

server.js¶

Dockerfile¶

Docker Compose Examples¶

Basic Multi-Service Setup¶

Production-Ready Setup¶

Optimization Tips¶

Multi-stage Dockerfile¶

.dockerignore¶

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