⚙️ Understanding Docker Compose

Docker Compose is a tool used to define and run multi-container Docker applications. It uses a YAML configuration file (

docker-compose.yml

) to describe how your services, networks, and volumes work together.

🚀 Why Use Docker Compose?

Simplifies managing multi-container applications
Centralizes configuration for services, ports, volumes, and networks
Eliminates the need for long and complex
```
docker run
```
commands
Enables repeatable development and testing environments

🧪 Example: Node.js with MongoDB

A basic Compose setup for a Node.js app that uses MongoDB:

version: '3.8'
 
services:
  app:
    build: .
    ports:
      - "3000:3000"
    depends_on:
      - mongo
    environment:
      - MONGO_URL=mongodb://mongo:27017/mydb
 
  mongo:
    image: mongo:6
    ports:
      - "27017:27017"
    volumes:
      - mongo-data:/data/db
 
volumes:
  mongo-data:

Cammands Dockerfile