Write a simple Node project
The project address
The directory structure is as follows:
App.js is as follows:
// app.js
const express = require('express')
var mongoose = require('mongoose');
const app = express()
mongoose.connect('mongodb://mongodb/test');
var kittySchema = mongoose.Schema({
name: String
});
kittySchema.methods.speak = function () {
var greeting = this.name
? "Meow name is " + this.name
: "I don't have a name";
console.log(greeting);
}
var Kitten = mongoose.model('Kitten', kittySchema);
app.get('/create', (req, res) => {
var fluffy = new Kitten({ name: 'fluffy' });
fluffy.save(function (err, fluffy) {
if (err) return console.error(err);
fluffy.speak();
});
res.send(fluffy.speak())
})
app.get('/', (req, res) => {
Kitten.find(function (err, kittens) {
if (err) return console.error(err);
res.send(kittens)
})
// res.send('hello aa')
})
app.listen(3000.console.log('Example app listening on port 3000! '))
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Write Dockerfile
FROM node:latest
RUN mkdir -p /home/project
WORKDIR /home/project
RUN chmod -R 777 /home/project
COPY . /home/project
RUN npm install
EXPOSE 3000
ENTRYPOINT ["npm"."run"]
CMD ["start"]
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Install the docker
Please refer to www.runoob.com/docker/maco…
Docker packages node projects as images
In the project root directory
docker build -t node .
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Docker runs mongo containers
Docker pulls the Mongo image
docker pull mongo
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Docker starts with mongo containers
docker run -p 27017:27017 -v $PWD/db:/data/db -d --name mongodb mongo:latest
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Docker Running Node project
docker run -d --name nodeapp --link=mongodb:mongodb -p 3000:3000 node
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Note:
- Mongodb: the first mongodb is the name of the mongo container and the second mongodb is the address of the mongodb service in app.js