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ln-730-devops-setup

Type: L2 Domain Coordinator Category: 7XX Project Bootstrap Parent: ln-700-project-bootstrap

Coordinates DevOps infrastructure setup by delegating to specialized workers.

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Purpose & Scope

Orchestrates the complete DevOps setup for a project:

• Does: Auto-detect stack, delegate to workers, verify configuration
• Does NOT: Generate files directly (delegates to ln-731, ln-732, ln-733)

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Overview

Aspect	Details
Input	Project directory with source code
Output	Docker, CI/CD, environment configuration
Workers	ln-731 (Docker), ln-732 (CI/CD), ln-733 (Environment)
Mode	Auto-detect (no user prompts)

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Supported Stacks

Component	Option 1	Option 2
Frontend	React/Vite + Nginx	-
Backend	.NET 8/9	Python (FastAPI/Django)
Database	PostgreSQL	-
CI/CD	GitHub Actions	-

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Workflow

Phase 1: Pre-flight Validation

Check required tools and project structure:

• Verify Docker is installed (docker --version)
• Verify docker-compose is available
• Check for existing DevOps files (warn if overwriting)

Output: Validation report or STOP with instructions

Phase 2: Project Analysis (Auto-detect)

Detect project stack automatically:

Detection	Method	Files to Check
Frontend	Package.json presence	src/frontend/package.json, package.json
Backend .NET	.csproj/.sln presence	*.sln, src/**/*.csproj
Backend Python	requirements.txt/pyproject.toml	requirements.txt, pyproject.toml
Database	Connection strings in code	appsettings.json, .env.example
Existing CI/CD	Workflow files	.github/workflows/, azure-pipelines.yml

Version Detection:

• Node.js: Read from package.json engines or use node -v
• .NET: Read from *.csproj TargetFramework
• Python: Read from pyproject.toml or runtime.txt
• PostgreSQL: Default to latest stable (17)

Output: Stack configuration object with detected versions

Phase 3: Worker Delegation

Delegate to workers in parallel (independent tasks):

ln-730 (Coordinator)
    |
    +---> ln-731-docker-generator (via Agent tool)
    |         Input: stack config, versions
    |         Output: Dockerfile.*, docker-compose.yml, .dockerignore
    |
    +---> ln-732-cicd-generator (via Agent tool)
    |         Input: stack config, detected commands
    |         Output: .github/workflows/ci.yml
    |
    +---> ln-733-env-configurator (via Agent tool)
              Input: detected environment variables
              Output: .env.example, .env.development, .gitignore updates

Error Handling:

• If worker fails, log error and continue with others
• Report all failures at the end
• Suggest manual fixes for failed components

Phase 4: Configuration Verification

Verify generated configuration:

• Run docker-compose config to validate syntax
• Check all referenced files exist
• Verify no secrets in committed files

Output: Verification report

Phase 5: Completion Report

Generate summary:

• List all created files
• Show detected stack configuration
• Provide next steps for user

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Generated Files

Docker (ln-731)

• Dockerfile.frontend - Multi-stage build for frontend
• Dockerfile.backend - Multi-stage build for backend
• docker-compose.yml - Service orchestration
• docker-compose.override.yml - Development overrides (optional)
• .dockerignore - Build context exclusions

CI/CD (ln-732)

• .github/workflows/ci.yml - Main CI pipeline

Environment (ln-733)

• .env.example - Template with all variables
• .env.development - Development defaults
• .env.production - Production template (placeholders)
• .gitignore updates - Secrets protection

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Critical Notes

1. Auto-detect Only: No interactive prompts. Uses detected values or sensible defaults.
2. Idempotent: Check file existence before creation. Warn before overwriting.
3. Parallel Execution: Workers are independent, can run in parallel.
4. Error Recovery: Continue on partial failures, report all issues at end.
5. Version Pinning: Use detected versions, not hardcoded values.

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Definition of Done

• Pre-flight validation passed
• Stack auto-detected successfully
• All workers completed (or failures documented)
• docker-compose config validates successfully
• No secrets in generated files
• Completion report displayed

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Reference Files

• Worker: ../ln-731-docker-generator/SKILL.md
• Worker: ../ln-732-cicd-generator/SKILL.md
• Worker: ../ln-733-env-configurator/SKILL.md

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Version: 1.1.0 Last Updated: 2026-01-10