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multi-stage-dockerfile

Generate optimized multi-stage Dockerfiles with explicit base image tags and non-root users.

6|2|Updated Jan 6, 2026
Search Tags:#security#build#docker#dockerfile#container#best-practices#multistage
One-click install
npx skills add https://github.com/acaprino/claude-code-daodan --skill multi-stage-dockerfile-acaprino
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: multi-stage-dockerfile
Source: https://github.com/acaprino/claude-code-daodan/tree/main/plugins/docker/skills/multi-stage-dockerfile
Command: npx skills add https://github.com/acaprino/claude-code-daodan --skill multi-stage-dockerfile-acaprino

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automate the creation of optimized multi-stage Dockerfiles that clearly separate build and runtime environments, resulting in smaller, more secure container images and fewer deployment issues.

Core Features & Use Cases

  • Two-stage builds that isolate compilation and runtime dependencies to minimize final image size.
  • Use exact versioned base images and consider distroless or minimal runtimes for security and reproducibility.
  • Guidance on layer caching, file permissions, and non-root users to improve performance and security.
  • Real-world scenarios include building applications in Node, Python, Go, or Java with reliable, repeatable Dockerfiles.

Quick Start

Create a minimal two-stage Dockerfile for a sample application and verify the final image size.

Frequently Asked Questions about multi-stage-dockerfile

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create a multi-stage Dockerfile to minimize image size?▼

To minimize image size, create a multi-stage Dockerfile that isolates build dependencies in a builder stage and copies only runtime artifacts to a minimal final image, reducing the overall container footprint.

What are the best practices for securing Docker container environments?▼

Securing Docker containers involves using explicit versioned base images, considering distroless or minimal runtimes, and configuring non-root users to minimize the runtime attack surface and improve deployment safety.

Can I use multi-stage Docker builds for Node, Python, Go, and Java projects?▼

Yes, multi-stage Docker builds support Node, Python, Go, and Java projects by providing a reliable builder-runtime separation that ensures reproducible images across different language ecosystems.

How does layer ordering in a Dockerfile affect build caching?▼

Proper layer ordering in a Dockerfile maximizes build caching by placing frequently changing instructions, like application code copies, after stable dependencies, speeding up subsequent builds significantly.

Why should I use distroless or minimal base images for my containers?▼

Distroless or minimal base images reduce the container attack surface by excluding unnecessary operating system utilities and libraries, resulting in smaller, more secure, and reproducible runtime environments.

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