Docker Build for Python/FastAPI Applications

Overview

Containerize Python and FastAPI applications using Docker with production-grade multi-stage builds, layer caching, security hardening, and Docker Compose orchestration. All patterns target Python 3.12+, use uv for dependency management, and follow the principle of minimal, reproducible images.

Refer to the asset templates bundled with this skill for ready-to-use starting points:

• assets/Dockerfile.fastapi -- production multi-stage Dockerfile
• assets/Dockerfile.dev -- development Dockerfile with hot reload
• assets/docker-compose.yml -- Compose stack with PostgreSQL and Redis
• assets/.dockerignore -- ignore rules for lean build contexts