ln-732-cicd-generator

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ln-732-cicd-generator

Type: L3 Worker Category: 7XX Project Bootstrap Parent: ln-730-devops-setup

Generates GitHub Actions CI pipeline for automated testing and validation.

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Purpose & Scope

Creates CI/CD workflow for GitHub:

• Does: Generate .github/workflows/ci.yml with lint, test, build, docker jobs
• Does NOT: Configure deployment, manage secrets, set up CD pipelines

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Inputs

Input	Source	Description
Stack Type	ln-730 coordinator	backend-dotnet, backend-python
Versions	Auto-detected	Node.js, .NET or Python versions
Frontend Path	Auto-detected	Path to frontend directory
Build Commands	Auto-detected	npm scripts, dotnet/pytest commands

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Outputs

File	Purpose	Template
.github/workflows/ci.yml	Main CI pipeline	github_ci_dotnet.template.yml or github_ci_python.template.yml

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Workflow

Phase 1: Stack Analysis

Determine which template to use:

Detection	Backend Template
.sln or .csproj present	github_ci_dotnet.template.yml
requirements.txt or pyproject.toml present	github_ci_python.template.yml

Detect commands:

• Frontend: Read scripts from package.json (lint, build, test)
• .NET: Standard dotnet restore/build/test
• Python: pip install, ruff lint, pytest

Phase 2: Variable Substitution

Replace template variables:

Variable	Source	Default
{{NODE_VERSION}}	package.json engines	22
{{DOTNET_VERSION}}	*.csproj TargetFramework	9.0.x
{{PYTHON_VERSION}}	pyproject.toml	3.12
{{FRONTEND_PATH}}	Directory detection	src/frontend

Phase 3: Directory Creation

Create .github/workflows/ directory if not exists.

Phase 4: File Generation

Generate ci.yml from selected template:

1. Check if workflow already exists (warn before overwrite)
2. Apply variable substitution
3. Write to .github/workflows/ci.yml
4. Validate YAML syntax

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Generated Pipeline Structure

Jobs Overview

Job	Purpose	Dependencies
frontend	Lint, build, test React/Vite	None
backend	Build, test .NET or Python	None
docker	Build images, health checks	frontend, backend

Frontend Job Steps

1. Checkout code
2. Setup Node.js with caching
3. Install dependencies (npm ci)
4. Run linter (npm run lint)
5. Build application (npm run build)
6. Run tests (npm test)

Backend Job Steps (.NET)

1. Checkout code
2. Setup .NET SDK
3. Restore dependencies (dotnet restore)
4. Build (dotnet build)
5. Run tests (dotnet test)

Backend Job Steps (Python)

1. Checkout code
2. Setup Python with pip caching
3. Install dependencies (pip install -r requirements.txt)
4. Run linter (ruff check)
5. Run tests (pytest)

Docker Job Steps

1. Checkout code
2. Build images (docker compose build)
3. Start containers (docker compose up -d)
4. Wait for startup (30 seconds)
5. Health check frontend (port 3000)
6. Health check backend (port 5000/8000)
7. Show logs on failure
8. Stop containers (docker compose down)

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Triggers

Event	Branches
Push	main, develop
Pull Request	main

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Best Practices Applied

Practice	Implementation
Dependency caching	npm cache, pip cache
Pinned versions	actions/checkout@v4, setup-node@v4
Parallel jobs	frontend and backend run in parallel
Fail fast	docker job waits for both to succeed
Clean up	docker compose down runs always
Debug support	logs shown on failure

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Quality Criteria

Generated workflow must:

• [ ] Pass YAML syntax validation
• [ ] Use pinned action versions (not @latest)
• [ ] Include dependency caching
• [ ] Have health checks for docker job
• [ ] Clean up resources on completion

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Critical Notes

1. GitHub Actions Only: This skill generates only GitHub Actions workflows. No Azure/GitLab support.
2. Template-based: Use templates from references/. Do NOT hardcode workflow contents.
3. Idempotent: Check if .github/workflows/ exists. Warn before overwriting ci.yml.
4. Version Detection: Use detected versions, not hardcoded defaults.

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Reference Files

File	Purpose
github_ci.template.yml	Full template with comments
github_ci_dotnet.template.yml	Compact .NET stack template
github_ci_python.template.yml	Compact Python stack template

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Version: 1.1.0 Last Updated: 2026-01-10