Docker

Skill GNSubrahmanyam/agentic-skills/skills/docker

Professional-grade Agentic Skills for modern software engineering. Built from real-world best practices, official documentation, and production experience.

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npx -y skills add GNSubrahmanyam/agentic-skills --skill docker

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Comprehensive containerization framework with production-ready patterns for Django, FastAPI, and Celery applications. Use when deploying applications, managing environments, or implementing microservices architecture.

SKILL.md

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Docker Containerization Best Practices

Comprehensive containerization framework with 60+ rules across Dockerfile optimization, multi-service orchestration, production deployment, and development workflows. Designed for reliable, scalable container deployments from development to production.

When to Apply

Reference these guidelines when:

Containerizing Django, FastAPI, or Celery applications
Setting up multi-service architectures with Docker Compose
Implementing production deployment pipelines
Managing development environments consistently
Scaling containerized applications
Optimizing container performance and security

Rule Categories by Priority

| Priority | Category | Impact | Files Created | Prefix | | --- | --- | --- | --- | --- | --- | | 1 | Container Fundamentals | CRITICAL | 4 | dockerfile- | | 2 | Docker Build | CRITICAL | 4 | build- | | 3 | Application Containers | CRITICAL | 5 | app- | | 4 | Docker Compose | HIGH | 8 | compose- | | 5 | Orchestration | HIGH | 3 | swarm- | | 6 | Security | HIGH | 3 | security- | | 7 | Production Deployment | HIGH | 2 | deploy- | | 8 | Observability | MEDIUM | 3 | logging- | | 9 | Development Workflow | MEDIUM | 2 | dev- | | 10 | Infrastructure | MEDIUM | 3 | infra- | | 11 | Advanced Features | LOW | 3 | advanced- |

Quick Reference

1. Container Fundamentals (CRITICAL)

dockerfile-security: Secure base images and vulnerability scanning
dockerfile-optimization: Multi-stage builds and layer caching
dockerfile-best-practices: Proper user management and signal handling
image-management: Tagging strategies and registry usage

2. Docker Build (CRITICAL)

build-buildx: Advanced build features with Buildx
build-multiplatform: Cross-platform image building
build-cache: Build caching for faster builds
build-security: Secrets, SSH, and attestations in builds

3. Application Containers (CRITICAL)

app-django: Django containerization with static files and migrations
app-fastapi: FastAPI async containerization with Uvicorn
app-celery: Celery containerization with broker integration
app-database: Database containerization with persistence
app-redis: Redis containerization for caching and data structures

4. Docker Compose (HIGH)

compose-development: Development environment orchestration
compose-production: Production-ready service composition
compose-networking: Service communication and isolation
compose-volumes: Data persistence and sharing
compose-configs-secrets: Configuration and secrets management
compose-multiple-files: Multiple compose files and includes
compose-environment: Environment variables and interpolation
compose-cli-advanced: Advanced CLI commands and project management

5. Orchestration (HIGH)

swarm-setup: Docker Swarm cluster management
swarm-services: Swarm service deployment and scaling
swarm-networking: Swarm overlay networking and security

6. Security (HIGH)

security-scanning: Docker Scout vulnerability scanning
security-hardening: Container runtime security hardening
security-compliance: Security compliance and best practices

7. Production Deployment (HIGH)

deploy-registry: Container registry management and security
deploy-scaling: Horizontal scaling and load balancing

8. Observability (MEDIUM)

logging-drivers: Docker logging drivers and configuration
logging-aggregation: Log aggregation and monitoring
logging-troubleshooting: Debugging and troubleshooting containers

9. Development Workflow (MEDIUM)

dev-hot-reload: Development with live code reloading
dev-testing: Testing in containerized environments
dev-debugging: Container debugging and troubleshooting
dev-testing: Testing in containerized environments

10. Infrastructure (MEDIUM)

infra-networking: Container networking patterns
infra-security: Container runtime security
infra-storage: Persistent storage and backups

11. Advanced Features (LOW)

advanced-desktop: Docker Desktop features and development
advanced-context: Docker context management
advanced-api: Docker API and programmatic access

Quick Start

📖 Overview: skills/docker-skill/SKILL.md
📚 Complete Reference: skills/docker-skill/AGENTS.md
🔍 Specific Rules: skills/docker-skill/rules/[category]-[rule-name].md