Enter docker-compose up command to pull node packages and run the app.
Code's hot-reload is provided by nodemon.
docker-compose.yml
version: '3'
services:
app:
image: node:14
command: bash -c "yarn && yarn start"
restart: unless-stopped
volumes:
- '.:/usr/src/app'
working_dir: /usr/src/app
ports:
- '3300:3300'
links:
- mongo
mongo:
restart: unless-stopped
image: mongo
ports:
- '27017:27017'
package.json
{
"scripts": {
"start": "nodemon index.js"
},
"dependencies": {
"express": "^4.17.1",
"nodemon": "^2.0.4"
}
}
index.js
const express = require('express');
const app = express();
const port = 3300;
app.get('/', (req, res) => {
res.send('Hello World!')
});
app.listen(port, () => {
console.log(`Example app listening at http://localhost:${port}`)
});