@mindfiredigital/adac-cost

A modular AWS cost calculator engine for ADAC. Estimates monthly cloud costs using AWS pricing data, with optional breakdowns by service and category.

Features

• Cost calculator engine (TypeScript)
• Embedded AWS pricing data (JSON snapshot)
• Monthly cost estimates
• Cost breakdowns by service and category (when enabled in the calculator)
• Supports multiple service groups:
  • Compute (EC2, ECS, Lambda)
  • Database (RDS, DynamoDB)
  • Storage (S3, EBS)
  • Networking (ALB, data transfer)
• Extensible for new services and providers
• Dynamic Service Mapping: Automatically recognizes services by the standard service field in YAML or explicit type/subtype declarations.
• Diagram Integration: Calculated costs are automatically embedded as tooltips in generated architecture diagrams.

File Structure

packages/cost/
  src/
    index.ts
    calculator.ts               # CostCalculator class
    pricing/
      aws-pricing.ts            # AWS pricing helper
      pricing-data.json         # Compressed pricing data snapshot
    calculators/
      compute-calculator.ts     # EC2 / compute services
      database-calculator.ts    # RDS / database services
      storage-calculator.ts     # S3, EBS, etc.
      networking-calculator.ts  # ALB, data transfer
    types/
      index.ts
      cost-types.ts
  __tests__/
    calculator.test.ts
    calculator.integration.test.ts
    calculators/
      compute-calculator.test.ts
  package.json
  tsconfig.json
  README.md

CLI integration (diagram + cost)

The cost engine is typically used through the diagram CLI provided by @mindfiredigital/adac-diagram. From the monorepo root you can render diagrams with cost annotations:

# Kubernetes example (yearly, on‑demand pricing)
pnpm cli diagram .\yamls\kubernetes.adac.yaml -o test.svg --cost --period yearly --pricing on_demand

# Data pipeline example (yearly, on‑demand pricing)
pnpm cli diagram .\yamls\data_pipeline.adac.yaml -o test.svg --cost --period yearly --pricing on_demand

Flags:

• --cost – enable cost calculation and overlay totals/breakdowns on the diagram.
• --period <period> – aggregation period (monthly, yearly, etc.).
• --pricing <model> – pricing model (on_demand, reserved, etc., depending on support).