docker & nodejs & mongodb Nodejs 应用简单的访问Mongodb 部署至Docker

Posted 2020-11-12 musiq66

docker & nodejs & mongodb

Nodejs 应用简单的访问Mongodb 部署至Docker

原文地址 https://www.cnblogs.com/zhangyanbo/p/5851644.html （自己操作时遇到不能继续的情况，所以稍做了修改完善）

目录结构

.
├── app.js
├── controller
├── Dockerfile
├── model
├── node_modules
├── package.json
├── router
└── schemas

1.本地简单的写能运行起来的一个nodejs (demo可写的更简单 一个post一个get即可)

schemas/user.js

var mongoose = require(\'mongoose\')
 
var UserSchema = new mongoose.Schema({
    name:{
        unique:true,
        type:String
    },
    password:{
        type:String
    },
    role:{
        type:Number,
        default:5
    }
})
UserSchema.statics = {
    fetch:function(cb){
        return this.find({})
        .exec(cb)
    },
    findById:function(id,cb){
        return this.findOne({_id:id}).exec(cb)
    }
}
module.exports = UserSchema

model/user.js　　

var mongoose = require(\'mongoose\')
 
var UserSchema = require(\'../schemas/user\')
 
var User = mongoose.model(\'User\',UserSchema);
 
module.exports = User;

controller/user.js

var User = require(\'../model/user\')
 
exports.list = function(req,res){
    User.fetch(function(err,users){
        if(err) {console.log(err)}
        res.send(users);
    })
}
exports.save = function(req,res){
    console.log(req.query.name);
    var name = req.query.name || \'noname\';
    var password = \'abcdefg\';
    var user = new User({"name":name,"password":"123456"})
     
    user.save(function(err){
        if(err)
        {
            console.log(\'false\');
            res.send("fails");
            return;
        }
        res.redirect(\'/\');
    })
}

./app.js

var express = require(\'express\');
var router = express.Router();
var mongoose = require(\'mongoose\')
 
//var dbURL = \'mongodb://localhost:27017/imooc\';
var dbURL = \'mongodb://mongodb/imooc\';//mongodb这个名字是 在--link=aaa:bbb时的名字 即bbb
mongoose.connect(dbURL);
 
var app = express();
 
app.listen(3000,function(){
    console.log("server start. Listen port:3000");
});
 
require(\'./router/router\')(app)

router/router.js

var User = require(\'../controller/user\')
 
var _ = require(\'underscore\')
 
module.exports = function(app){
    app.get(\'/\',User.list)
    app.get(\'/user\',User.save);
}

确保本地能够正常运行。

2.npm安装express mongoose underscore

$ npm install express mongoose underscore

3.在app.js文件目录编写dockerfile

FROM node
RUN mkdir -p /home/src
COPY . /home/src
RUN cd /home/src; npm install --registry=https://registry.npm.taobao.org
EXPOSE 3000
CMD ["node", "/home/src/app.js"]

4.docker pull mongo

5.docker run -it --name mongodb mongo

进入终端

cd /home
mkdir db
mongod --dbpath=\'/home/db\'

启动mongodb服务

6.docker build -t nodejsdemo ./　

docker run -it -p 3000:3000 --name nodejsdemo --link=mongodb:mongodb modejsdemo

此时控制台可以看到 server start Listen port:3000

浏览器访问 192.168.99.100:3000