docker

Installation
Summary

Containerize applications with isolated, portable units ensuring consistency across development, testing, and production.

  • Supports three core workflows: local development with hot-reload volumes, CI/CD image building and testing, and production deployment with health checks and resource limits
  • Includes multi-stage builds to optimize image size, layer caching strategies, and .dockerignore patterns for faster builds
  • Docker Compose enables multi-container applications with service dependencies, networking, and volume management in a single YAML file
  • Covers framework-specific patterns for Node.js, Python, TypeScript, and Go, plus security best practices including non-root users, minimal base images, and secret management
  • Provides debugging tools (logs, exec, inspect, stats) and troubleshooting guidance for common issues like port conflicts, permission errors, and performance bottlenecks
SKILL.md

Docker Containerization Skill

Summary

Docker provides containerization for packaging applications with their dependencies into isolated, portable units. Containers ensure consistency across development, testing, and production environments, eliminating "works on my machine" problems.

When to Use

  • Local Development: Consistent dev environments across team members
  • CI/CD Pipelines: Reproducible build and test environments
  • Microservices: Isolated services with independent scaling
  • Production Deployment: Portable applications across cloud providers
  • Database/Service Testing: Ephemeral databases for integration tests
  • Legacy Application Isolation: Run incompatible dependencies side-by-side

Quick Start

1. Create Dockerfile

FROM node:18-alpine
WORKDIR /app
Related skills
Installs
713
GitHub Stars
43
First Seen
Jan 23, 2026