container-best-practices

Apply Dockerfile best practices for secure multi-stage container builds.

Updated Mar 20, 2026

Search Tags:#security #docker #dockerfile #container #compose #multi-stage

Ready to run

npx skills add https://github.com/jfriisj/coding-agents --skill container-best-practices-jfriisj

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: container-best-practices
Source: https://github.com/jfriisj/coding-agents/tree/main/context-ligt-workflow/skills/container-best-practices
Command: npx skills add https://github.com/jfriisj/coding-agents --skill container-best-practices-jfriisj

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Expert guidance on structuring Dockerfiles, multi-stage builds, security, and Compose to help teams create predictable, secure container images.

Core Features & Use Cases

Architectural structure guidance for Dockerfiles, including use of .dockerignore, absolute WORKDIR, and COPY over ADD practices.
Security hardening recommendations such as running as a non-root user, pinning base images, and adding HEALTHCHECK and metadata labels.
Multi-stage build patterns and Compose configurations to isolate build dependencies and simplify deployment across environments.

Quick Start

Refactor your Dockerfile to implement secure, multi-stage builds with explicit stages and non-root execution.

Frequently Asked Questions about container-best-practices

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

FAQPage Schema

How do I create a secure Dockerfile with non-root execution?▼

To create a secure Dockerfile, you should enforce non-root execution, pin base images, and add health checks. This approach ensures predictable, maintainable containers by applying security hardening guidelines to your Docker builds.

What is the best way to structure Docker multi-stage builds for Node, Python, or Go?▼

The best way to structure Docker multi-stage builds is to isolate build dependencies using explicit stages. This pattern simplifies deployment across environments and ensures predictable, secure images for Node, Python, or Go projects.

How does a .dockerignore file improve container security and build predictability?▼

A .dockerignore file improves container security by excluding sensitive files from the build context. Combined with using absolute WORKDIR and COPY over ADD, it helps architect maintainable Dockerfiles and predictable container images.

Can I use Docker Compose to configure multi-stage builds across different environments?▼

Yes, you can use Docker Compose to configure multi-stage builds across environments. Compose configurations work with multi-stage patterns to isolate build dependencies and simplify deployment for predictable, secure images.

Why should I pin base images and add metadata labels to my Docker containers?▼

You should pin base images and add metadata labels to prevent unauthorized access and ensure predictable container builds. These security hardening practices guarantee maintainable Docker images by enforcing strict version control and traceability.