Docker Containerization Skill

Summary

Docker provides containerization for packaging applications with their dependencies into isolated, portable units. Containers ensure consistency across development, testing, and production environments, eliminating "works on my machine" problems.

When to Use

• Local Development: Consistent dev environments across team members
• CI/CD Pipelines: Reproducible build and test environments
• Microservices: Isolated services with independent scaling
• Production Deployment: Portable applications across cloud providers
• Database/Service Testing: Ephemeral databases for integration tests
• Legacy Application Isolation: Run incompatible dependencies side-by-side

Quick Start