Docker compose: Learn how to use Docker Compose

Learn how to use Docker Compose to define and run multi-container applications with this detailed introduction to the tool. Docker Compose is an orchestration tool for defining and running multi-container Docker applications . Imagine you have a complex application with separate components—a web server, a backend API, a database, and a caching layer. Each component runs in its own isolated container. To achieve this we need to define a docker-compose .yml. docker-compose .yml file The compose file is a YML file defining services, networks, and volumes for a Docker container. There are several versions of the compose file format available – 1, 2, 2.x, and 3.x. Before proceeding further, here's a important note to us from the Docker Compose team. 🔧 What is Docker ? Docker is a platform for packaging applications into containers — lightweight, portable units that bundle your app with its dependencies.