generating-docker-compose-files

name	generating-docker-compose-files
description	Execute use when you need to work with Docker Compose. This skill provides Docker Compose file generation with comprehensive guidance and automation. Trigger with phrases like "generate docker-compose", "create compose file", or "configure multi-container app".
allowed-tools	Read, Write, Edit, Grep, Glob, Bash(docker:*), Bash(kubectl:*)
version	1.28.0
author	Jeremy Longshore <[e-mail]>
license	MIT
tags	["devops","docker","docker-compose"]
compatibility	Designed for Claude Code

Generating Docker Compose Files

Overview

Generate production-ready docker-compose.yml files for multi-container applications. Define services, networks, volumes, health checks, resource limits, and environment-specific overrides for local development, testing, and single-host production deployments.

Prerequisites

• Docker Engine 20.10+ and Docker Compose v2 (docker compose version)
• Application Dockerfiles for each service or pre-built images available
• Understanding of service dependencies and inter-service communication ports
• Environment variable values or .env files for configuration
• Sufficient disk space and memory for all containers defined in the stack

Instructions

1. Scan the project for existing Dockerfiles, docker-compose*.yml files, and application entry points
2. Identify all services that compose the application stack (web server, API, database, cache, message queue, worker)
3. Define each service with image or build context, port mappings, and environment variables
4. Configure service dependencies using depends_on with health check conditions to ensure proper startup order
5. Create named volumes for persistent data (database files, uploads, cache) and bind mounts for development hot-reload
6. Define custom bridge networks to isolate service groups (frontend, backend, data tier)
7. Add health checks for each service to enable dependency-aware startup and container orchestrator integration
8. Set resource limits (deploy.resources.limits) for CPU and memory to prevent a single container from exhausting the host
9. Create environment-specific override files: docker-compose.override.yml for development, docker-compose.prod.yml for production
10. Validate the configuration with docker compose config to check for syntax errors

Output

• docker-compose.yml with service definitions, networks, and volumes
• Environment-specific override files (docker-compose.override.yml, docker-compose.prod.yml)
• .env file template with documented variables
• Dockerfiles for services that require custom builds
• Helper scripts for common operations (start.sh, stop.sh, logs.sh)