Jon Chery
031887ec56
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---
ACDL Modules
Reusable building blocks for cloud infrastructure. Each module is
self-documented with a README.md following the
template.
How the modules work
There are two kinds of module:
- Primitives — a single cloud resource or a small group of
related resources (e.g. a VPC with subnets and routing). Each primitive
has an
interface.jsondeclaring its inputs and outputs, and aREADME.mdin plain language. - Modules — a pattern that references multiple primitives to
deploy a complete stack (e.g. an ECS Fargate microservice). Each module
has a
composition.jsondeclaring its children and wires.
The engine adapter (adapters/terraform/adapter.py) compiles a
module instance to infrastructure. Each module's README documents which
resources it creates.
Primitives
| Module | What it creates | README |
|---|---|---|
s3 |
aws_s3_bucket — a single S3 bucket |
README |
vpc |
aws_vpc + aws_subnet + aws_route_table + aws_internet_gateway — VPC with subnets and routing |
README |
ecs-cluster |
aws_ecs_cluster — ECS Fargate cluster |
README |
ecs-service |
aws_ecs_task_definition + aws_ecs_service — Fargate service with task definition |
README |
iam-role |
aws_iam_role — IAM role with assume-role policy |
README |
alb |
aws_lb + aws_lb_target_group + aws_lb_listener — Application Load Balancer |
README |
ecr |
aws_ecr_repository — ECR container image repository |
README |
cloudfront |
aws_cloudfront_distribution + aws_cloudfront_origin_access_control — CloudFront distribution with S3 origin via OAC |
README |
waf |
aws_wafv2_web_acl — WAFv2 Web ACL (CloudFront-scoped) |
README |
rds |
aws_db_instance — Relational database (PostgreSQL, MySQL, etc.) with multi-engine support |
README |
kms-key |
aws_kms_key — Customer-managed KMS key with rotation enabled (per-stack CMK) |
README |
uptime |
aws_ecs_service — Uptime-kuma monitoring on ECS Fargate with alert channels |
README |
Modules
| Module | What it references | README |
|---|---|---|
microservice |
6 primitives (vpc, cluster, ecr, iam-role, alb, ecs-service) | README |
static-assets |
3 primitives (s3, cloudfront, waf) | README |
Registry
Module versions are tracked in registry.json. Both primitives and
modules are registered.
Template
New modules should use README-TEMPLATE.md as their starting point.
Module patterns (roadmap)
The current composition.json mechanism is a thin pattern layer. A future
redesign will let a consumer dynamically create a module directly from the
contract file (an agentic "composition" flow). That is on the roadmap, not
implemented today.