<aside> 📚 📁 Category: Docker

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Overview

Docker Compose is a tool for defining and running multi-container Docker applications. Use YAML to configure your application's services, networks, and volumes.

<aside> ℹ️ Why It Matters: Understanding Docker Compose is essential for building robust, scalable, and secure modern applications.

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Key Concepts

• [x] Services - Define application containers
• [x] Networks - Container communication
• [x] Volumes - Persistent data storage
• [x] Environment Variables - Configuration
• [x] Depends_on - Service dependencies
• [x] Health Checks - Service readiness
• [x] Profiles - Conditional service startup
• [x] Override Files - Environment-specific configs

Common Use Cases

<aside> 💡 Where to Apply Docker Compose

                        Local development environments
                        Testing with multiple services
                        Application + database setup
                        Microservices orchestration (dev)
                        CI/CD testing environments
                        Demo and POC environments

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Best Practices

• [x] Use version 3.8+ of compose file format
• [x] Define explicit networks for service isolation
• [x] Use named volumes for persistence
• [x] Set resource limits for containers