Nodejs 应用简单的访问Mongodb 部署至Docker
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
},
//0 1 2 3 4
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.js
var User = require('../app/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.在app.js文件目录编写dockerfile
FROM node COPY . /home/src RUN cd /home/src; npm install 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