DOCKER_COMPOSE MONGO & NODEJS EXAMPLE

npm init

npm i express mongoose

Create new folder src with index.js and database.js files

- connect to server  $ node src/index.js

Create Dockerfile whit node image

- install https://hub.docker.com/_/node
- create file .dockerignore for node_modules
- script package.json start

$ docker build -t hellonode .
$ docker images
$ docker run -p 4000:3000 hellonode

Create docker-compose.yml file

- install docker compose https://docs.docker.com/compose/install/  Linux
- insert mongo image https://hub.docker.com/_/mongo
- links mongo at docker-compose.yml file web services

Require mongoose from database.js file

- connect to mongo not localhost

Require database.js from index.js

$ docker-compose -v $ docker-compose build $ docker images $ docker-compose up

Create routes folder and index.routes.js - Router from express

Insert in docker-compose.yml file volumes

Create .gitignore and README.md files

$ docker-compose build $ docker images $ docker-compose up

See volumes

$ docker ps $ docker exec -it exampleapp bash

ls -a

Install nodemon and babel

$ npm install --save-dev @babel/core @babel/cli @babel/preset-env @babel/node $ npm install --save-dev nodemon

• Create .babelrc
• Change script to package.json "start": "nodemon --exec babel-node index.js",

$ docker-compose stop $ docker-compose build $ docker-compose up

Check Browser http://localhost:5000/

Insert docker logs none from mongo image

$ docker-compose build $ docker-compose up