Files
acdl/modules/l2/microservice
Jon Chery e1be05287b feat(P39): refresh design docs + parameterize adapter (P1-1)
---ci---
project: acdl
phase: 39
milestone: v1.9
status: execute
---/ci---

Phase 39 — design-doc-refresh-and-p1-1-parameterization:

Design docs (REQ-100, REQ-101):
- hitl_matrix_design.md: 'dev-only spike'/'v1.2 wires the gates' framing
  replaced with v1.9 wired-gates reality; 8-concern matrix marked
  implemented (offline-testable subset + signed evidence artifacts,
  D-084); v1.9 wiring section cross-references hitl_gates.py +
  attestation_matrix.py; approver_dr noted.
- audit_ledger_design.md: outbox marked shipped+production since v1.8;
  S3 Object Lock + JWS + async worker + DLQ + daily checkpoints clearly
  labeled 'Deferred to a future milestone (D-083)'; RPO/RTO table updated;
  approver fields note v1.9 hitl_gates.attest.

P1-1 adapter parameterization (REQ-102, D-085):
- ecs-service interface.json: desired_count (default 1), launch_type
  (FARGATE), family (app) inputs added.
- alb interface.json: load_balancer_type (application), target_type (ip).
- adapter.py: hardcoded defaults replaced with inputs.get(<name>, <default>);
  hardcoded 'acdl-microservice-rt'/'acdl-microservice-igw' Name tags
  derive from the VPC name input.
- contract_resolver.py: child_input_map routes wires to the sub-resource
  that declares the input (desired_count → aws:ecs:service, family →
  aws:ecs:task_definition, target_type → targetgroup, etc.).
- microservice composition.json: wires added for the new inputs.

Tests: +21 (test_p1_1_adapter_parameterization.py, test_design_docs_current.py).
371 passed; run_ci.sh green; run_platform.sh --check-only green; v1.1 S3
regression preserved.
2026-07-23 04:24:25 +00:00
..

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:

uses: acdl/pipelines/deploy.yaml@v1.6
module: microservice
environment: dev
inputs:
  image: 581513795199.dkr.ecr.us-east-1.amazonaws.com/acdl-microservice:latest
  port: 8080
  region: us-east-1

Compliance extension points

The pattern can wire compliance resources across primitives when the compliance milestone (GDPR, SOX, SOC2, HIPAA, 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.yaml

# Simple microservice deployment (minimal Fargate, no ALB)
uses: acdl/pipelines/deploy.yaml@v1.6
module: microservice
environment: dev
inputs:
  bucket_name: my-microservice-demo
  region: us-east-1
  image: public.ecr.aws/docker/library/nginx:latest
  port: 80

Complex

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

examples/complex.yaml

# Complex microservice with ALB + env vars + health check
uses: acdl/pipelines/deploy.yaml@v1.6
module: microservice
environment: dev
inputs:
  bucket_name: my-production-microservice
  region: us-east-1
  image: public.ecr.aws/docker/library/nginx:latest
  port: 8080
  env:
    LOG_LEVEL: info
    ENVIRONMENT: production

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.