mwguerra/claude-code-plugins/compose

Claude Code and agent skill by mwguerra/claude-code-plugins

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Generate Compose configs with services, networking, volumes, and health checks

Install

npx vskill@latest install mwguerra/claude-code-plugins/compose

SKILL.md

Docker Compose Configuration Skill

Overview

This skill generates Docker Compose configurations for multi-container applications. It creates properly structured compose files with:

  • Service definitions
  • Network configuration
  • Volume management
  • Health checks
  • Dependencies
  • Environment configuration

Activation

Use this skill when:

  • Creating a new compose file
  • Adding services to existing compose
  • Configuring container orchestration
  • Setting up development or production environments

Process

1. Understand Requirements

Gather information about:

  • Required services (web, api, database, cache, etc.)
  • Environment (development/production)
  • Networking needs (internal, external, SSL)
  • Persistence requirements
  • Scaling needs
2. Consult Documentation

Read relevant documentation:

  • 03-compose-fundamentals.md for structure
  • 04-networking.md for networks
  • 05-databases.md for database services
  • 06-services.md for dependencies
  • 08-volumes.md for persistence
3. Generate Configuration

Create compose file following best practices:

yaml
# Modern compose (no version field)
services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - NODE_ENV=production
    depends_on:
      db:
        condition: service_healthy
    networks:
      - frontend
      - backend
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3000/health"]
      interval: 30s
      timeout: 10s
      retries: 3
 
  db:
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${DB_USER}
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_DB: ${DB_NAME}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - backend
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USER}"]
      interval: 10s
      timeout: 5s
      retries: 5
 
volumes:
  postgres_data:
 
networks:
  frontend:
  backend:
    internal: true

Service Patterns

Web Application
yaml
services:
  web:
    build: .
    ports:
      - "80:80"
    depends_on:
      - api
API Service
yaml
services:
  api:
    build: ./api
    expose:
      - "3000"
    environment:
      - DATABASE_URL=postgresql://user:pass@db:5432/app
    depends_on:
      db:
        condition: service_healthy
Database Service
yaml
services:
  db:
    image: postgres:16-alpine
    volumes:
      - db_data:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: ${DB_PASSWORD}
    healthcheck:
      test: ["CMD-SHELL", "pg_isready"]
      interval: 10s
      retries: 5
Cache Service
yaml
services:
  redis:
    image: redis:7-alpine
    command: redis-server --appendonly yes
    volumes:
      - redis_data:/data
Background Worker
yaml
services:
  worker:
    build: .
    command: npm run worker
    depends_on:
      - db
      - redis

Network Patterns

Internal Database Network
yaml
networks:
  backend:
    internal: true  # No external access
External Shared Network
yaml
networks:
  proxy:
    external: true
    name: traefik_proxy

Volume Patterns

Named Volume
yaml
volumes:
  postgres_data:
Bind Mount (Development)
yaml
volumes:
  - ./src:/app/src
Anonymous Volume
yaml
volumes:
  - /app/node_modules

Environment Patterns

Direct Values
yaml
environment:
  - NODE_ENV=production
From .env File
yaml
env_file:
  - .env
With Defaults
yaml
environment:
  - DB_HOST=${DB_HOST:-localhost}

Output

Generated compose file includes:

  • All required services
  • Proper network configuration
  • Volume definitions
  • Health checks
  • Dependency management
  • Environment configuration
  • Comments for complex settings

Security

  • Security scanPassed, 95 of 100Pattern checks on the skill's files.
  • Model reviewPassed

See the full security report

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