Node socket.io docker

bash 复制代码

npm install express

bash 复制代码

npm install socket.io

javascript 复制代码

const express = require('express');
const http = require('http');
const socketIO = require('socket.io');

const app = express();
const server = http.createServer(app);
const io = socketIO(server);

io.on('connection', (socket) => {
    console.log('User connected');

    socket.on('chat message', (msg) => {
        console.log('message: ' + msg);
        io.emit('chat message', msg); // to all
    });

    socket.on('disconnect', () => {
        console.log('User disconnected');
    });
});

server.listen(24525, () => {
    console.log('Node Server is running on port 24525');
});

bash 复制代码

FROM node:16-alpine

WORKDIR /usr/src/app

COPY package*.json ./
RUN npm ci --only=production

COPY . .

EXPOSE 24525

CMD ["node", "skio.js"]

bash 复制代码

docker build -t nodeskio .

docker run -p 24525:24525 -d nodeskio

##login push

#docker login
#docker push your-image-name

bash 复制代码

npm install socket.io-client

javascript 复制代码

const io = require('socket.io-client');
const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

const socket = io.connect('http://localhost:24525');

socket.on('connect', () => {
    console.log('Connected to server');
});

// 监听从服务器接收到的消息
socket.on('chat message', (msg) => {
    console.log('Message from server:', msg);
});

// 处理用户输入并发送到服务器
rl.on('line', (input) => {
    if (input.toLowerCase() === 'exit') {
        console.log('Exiting...');
        rl.close();
        process.exit(0);
    } else {
        socket.emit('chat message', input);
    }
});

// 处理关闭事件
rl.on('close', () => {
    socket.disconnect();
    console.log('Connection closed.');
});

bash 复制代码

npm run