Docker

When to Use

• Containerizing applications
• Local development environments
• CI/CD pipelines

When NOT to Use

• Serverless-only deployments where containers are not part of the architecture (e.g., pure AWS Lambda, Cloudflare Workers)
• Local development without containers where native tooling is preferred
• Simple scripts or utilities that do not need isolation or reproducible environments

Core Patterns

1. Multi-Stage Builds