Dockerizing a full-stack Node.js and React application with MongoDB using Docker Compose has become an increasingly popular trend in software development. This beginner's guide provides a step-by-step walkthrough on how to containerize a simple Node.js backend, a React frontend, and MongoDB using Docker, along with Docker Compose.

The process begins by creating a directory structure for the project, followed by the creation of Dockerfiles for both the Node.js and React applications. A docker-compose.yml file is then configured to manage the services, including MongoDB. This allows developers to package their code and dependencies into a portable, lightweight unit, making it easier to share and deploy their application.

The guide also provides instructions on how to start all services together using Docker Compose, ensuring that the Node.js backend and React frontend can be accessed at http://localhost:5000 and http://localhost:3000 respectively. Additionally, the guide covers how to stop and remove all containers and associated resources when development is complete.

This setup allows developers to run their application stack in separate containers, ensuring a consistent and portable environment across different machines. With Docker, developers can easily share their entire application stack, including its dependencies, with their team or deploy it in any Docker-supported environment.

Source: https://dev.to/ghassenyaa/a-beginners-guide-to-dockerizing-a-full-stack-nodejs-and-react-application-with-mongodb-using-docker-compose-4fmh