Ln 115 Devops Docs Creator

DevOps Documentation Creator

L3 Worker that creates runbook.md. CONDITIONAL - only invoked when project has Docker or deployment config.

Purpose & Scope

• Creates runbook.md (if hasDocker)
• Receives Context Store from ln-110-project-docs-coordinator
• Step-by-step setup and deployment instructions
• Troubleshooting guide
• Never gathers context itself; uses coordinator input

Invocation (who/when)

• ln-110-project-docs-coordinator: CONDITIONALLY invoked when:
  • hasDocker=true (Dockerfile or docker-compose.yml detected)
• Never called directly by users

Inputs

From coordinator:

• contextStore: Context Store with DevOps-specific data
  • DOCKER_COMPOSE_DEV (development setup)
  • DOCKER_COMPOSE_PROD (production setup)
  • ENV_VARIABLES (from .env.example)
  • STARTUP_SEQUENCE (services order)
  • DEPLOYMENT_TARGET (AWS, Vercel, Heroku)
  • CI_CD_PIPELINE (from .github/workflows)
  • DOCKER_SERVICES (parsed from docker-compose.yml services)
  • DEPLOYMENT_SCALE ("single" | "multi" | "auto-scaling" | "gpu-based")
  • DEVOPS_CONTACTS (from CODEOWNERS, package.json author, git log)
  • HAS_GPU (detected from docker-compose nvidia runtime)
• targetDir: Project root directory
• flags: { hasDocker }

Documents Created (1, conditional)

Workflow

Phase 1: Check Conditions

1. Parse flags from coordinator
2. If !hasDocker: return early with empty result

Phase 2: Create Document

1. Check if file exists (idempotent)
2. If exists: skip with log
3. If not exists:
   • Copy template
   • Replace placeholders with Context Store values
   • Populate setup steps from package.json scripts
   • Extract env vars from .env.example
   • Mark [TBD: X] for missing data
4. Conditional Section Pruning:
   • If DEPLOYMENT_SCALE != "multi" or "auto-scaling": Remove scaling/load balancer sections
   • If !HAS_GPU: Remove GPU-related sections (nvidia runtime, CUDA)
   • If service not in DOCKER_SERVICES: Remove that service's examples (e.g., no Redis = no Redis commands)
   • If DEVOPS_CONTACTS empty: Mark {{KEY_CONTACTS}} as [TBD: Provide DevOps team contacts via Q50]
   • Populate {{SERVICE_DEPENDENCIES}} ONLY from DOCKER_SERVICES (no generic examples)
   • Populate {{PORT_MAPPING}} ONLY from docker-compose.yml ports section

Phase 3: Self-Validate

1. Check SCOPE tag
2. Validate sections:
   • Local Development Setup (prerequisites, install, run)
   • Deployment (platform, build, deploy steps)
   • Troubleshooting (common errors, debugging)
3. Check env vars documented
4. Check Maintenance section

Phase 4: Return Status

{
  "created": ["docs/project/runbook.md"],
  "skipped": [],
  "tbd_count": 0,
  "validation": "OK"
}

Critical Notes

• Conditional: Skip entirely if no Docker detected
• Heavy auto-discovery: Most data from docker-compose.yml, .env.example, package.json
• Reproducible: Setup steps must be testable and repeatable
• Idempotent: Never overwrite existing files

Definition of Done

• Condition checked (hasDocker)
• Document created if applicable
• Setup steps, deployment, troubleshooting documented
• All env vars from .env.example included
• Status returned to coordinator

Reference Files

• Templates: references/templates/runbook_template.md
• Questions: references/questions_devops.md (Q46-Q51)

Version: 1.0.0 Last Updated: 2025-12-19