Files

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Jon Chery 031887ec56 refactor(P57): contract surface redesign + rename + .yml repo-wide

Contract surface redesign:
- New top-level fields: id (3-6 char acronym → stack.name), name (full → stack.title),
  infrastructure (map keyed by module name, replaces module:)
- Drop uses: field (dead reference; version pin lives in CI workflow uses: line)
- Drop top-level module/inputs (now nested under infrastructure map)
- Per-module optional version (defaults to latest published from registry)
- Multi-module contracts: one file deploys N modules in one pipeline run,
  resource IDs namespaced with module name to avoid collisions
- stack.schema.json: add optional title field for display name

Rename:
- pipelines/deploy.yaml → pipelines/contract.yml (declarative spec, not a pipeline)
- pipelines/ci.yaml → pipelines/ci.yml
- All 44 .yaml files → .yml repo-wide (contracts, module examples, kyverno policies)
- .acdl/contract.yaml → .acdl/contract.yml

Resolver (core/contract_resolver.py):
- Rewrite resolve() to loop infrastructure map, default version to latest,
  merge module fragments into one stack with namespaced resource IDs
- _latest_version() picks highest non-deprecated from registry
- _namespace_resources() prefixes IDs + rewrites ref: expressions for multi-module
- Single-module path: unprefixed IDs (backward compatible)

Verification:
- 494 tests pass (0 contract-shape failures)
- Local E2E passes (contract → resolver → adapter → local ECS HTTP 200 → outbox)

---ci---
project: acdl
phase: 57
milestone: v1.10.2
status: execute
---/ci---

2026-07-27 21:37:40 +00:00

examples

refactor(P57): contract surface redesign + rename + .yml repo-wide

2026-07-27 21:37:40 +00:00

composition.json

feat(P39): refresh design docs + parameterize adapter (P1-1)

2026-07-23 04:24:25 +00:00

README.md

refactor(P57): contract surface redesign + rename + .yml repo-wide

2026-07-27 21:37:40 +00:00

README.md

microservice — ECS Fargate microservice

Module kind: module pattern | Version: 1.0.0

A pattern that references multiple primitives to deploy an ECS Fargate microservice end-to-end (VPC, cluster, ECR, IAM role, ALB, ECS service).

Resources

The pattern references these primitives:

Primitive	Purpose	README
`vpc`	VPC, subnets, routing	README
`ecs-cluster`	ECS Fargate cluster	README
`ecr`	ECR image repository	README
`iam-role`	IAM task execution role	README
`alb`	Application Load Balancer	README
`ecs-service`	ECS task definition + service	README

Inputs

Name	Type	Required	Description
`image`	string	yes	ECR image URL for the task container
`port`	number	yes	Container port the service listens on
`region`	string	yes	AWS region
`cidr`	string	no	VPC CIDR block (default 10.0.0.0/16)
`azs`	string	no	Comma-separated availability zones

Outputs

Name	Type	Description
`lb_arn`	arn	The load balancer ARN
`service_arn`	arn	The ECS service ARN

Usage

Define a contract referencing this module:

environment: dev
id: msvc
infrastructure:
  microservice:
    inputs:
      image: 581513795199.dkr.ecr.us-east-1.amazonaws.com/acdl-microservice:latest
      port: 8080
      region: us-east-1
    version: 1.0.0
name: microservice

Compliance extension points

The pattern can wire compliance resources across primitives when the compliance milestone (GDPR, SOX, SOC2, DORA) lands:

KMS key — shared encryption key referenced by S3, ECR, CloudWatch Logs, and Secrets Manager.
CloudTrail — management-plane audit trail for the entire stack.
VPC Flow Logs — network audit trail.
Security groups — proper network segmentation between ALB, service, and data tiers.
Private subnets — ECS tasks in private subnets with NAT egress.

See each primitive's README for per-module compliance extension points.

Examples

Validated example contracts are in examples/. The platform-test pipeline validates them against schemas/contract.schema.json.

Simple

A minimal deployment (minimal Fargate, no ALB):

examples/simple.yml

environment: dev
id: msvc
infrastructure:
  microservice:
    inputs:
      bucket_name: my-microservice-demo
      image: public.ecr.aws/docker/library/nginx:latest
      port: 80
      region: us-east-1
    version: 1.0.0
name: microservice

Complex

A production deployment with optional inputs (ALB + env vars + health check):

examples/complex.yml

environment: dev
id: msvc
infrastructure:
  microservice:
    inputs:
      bucket_name: my-production-microservice
      env:
        ENVIRONMENT: production
        LOG_LEVEL: info
      image: public.ecr.aws/docker/library/nginx:latest
      port: 8080
      region: us-east-1
    version: 1.0.0
name: microservice

Versioning

1.0.0 — interface MAJOR, behavior MINOR, lifecycle PATCH. MAJOR bumps require a new registry entry (immutable publication); old entries enter a 12-month deprecation window.