Nodejs 應用簡單的訪問Mongodb 部署至Docker
1.本地簡單的寫能運行起來的一個nodejs (demo可寫的更簡單 一個post一個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這個名字是 在--link=aaa:bbb時的名字 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); }
確保本地能夠正常運行。
2.在app.js文件目錄編寫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 進入終端
cd /home mkdir db mongod --dbpath='/home/db' 啟動mongodb服務
6.docker build -t nodejsdemo ./
docker run -it -p 3000:3000 --name nodejsdemo --link=mongodb:mongodb modejsdemo
此時控制台可以看到 server start Listen port:3000
瀏覽器訪問 192.168.99.100:3000