What problem does it solve?
This Skill helps you containerize applications correctly by producing Dockerfiles and Compose setups that are smaller, faster to build, and safer to run in production.
Core Features & Use Cases
- Dockerfile optimization & multi-stage builds: Improves layer caching, reduces image size, and separates build vs runtime artifacts.
- Container security hardening: Enforces non-root execution, safer defaults, and secret-handling patterns.
- Compose orchestration & validation: Adds health checks, dependency ordering, networking structure, and resource limits for reliability.
- Cross-platform and build performance: Supports multi-arch builds and build cache strategies (e.g., BuildKit cache mounts).
Real-world use: you have a service that builds successfully but produces large images, has weak defaults (e.g., runs as root), and fails intermittently due to missing health checks and ordering—this Skill guides you to a production-ready container setup.
Quick Start
Tell the AI: "Using the docker-expert skill, review my Dockerfile and docker-compose.yml, harden it for production, optimize image size with multi-stage builds, and propose concrete changes with a validation plan."
