Files

T

Jon Chery ac18c98385 feat(P1): kyverno-json engine core + PolicyEngine protocol (REQ-291..294, 308, 309)

core/policy_engine.py: PolicyEngine Protocol (PEP 544, runtime_checkable)
+ PolicyEngineRegistry (selects from config.json.policy.engine) + NullEngine
fallback (NULL_ENGINE_INACTIVE when policy key absent).

adapters/kyverno-json/: KyvernoJsonEngine — shells to , translates
native output → list[dict] PCR records (engine: "kyverno", ruleId KJ_ prefix,
severity via nova.cloudinit.dev/severity annotation, default info).
is_configured() guards on  → KJ_ENGINE_NOT_CONFIGURED SKIPPED PCR
(distinct from NullEngine). Defensive parsing (malformed → error PCR).

config.json: new  object {engine: kyverno-json, policy_root}.

scripts/install-kyverno-json.sh: go install kj@latest (D-115).
CI (.gitea + .github): install Go + kj for policy-engine tests (best-effort;
tests skip when kj absent).

tests: 24 pass, 2 skip (kj not installed). 132 existing tests unchanged.
NullEngine satisfies PolicyEngine Protocol (G-Q8a — proves swap boundary).

---ci---
project: acdl
phase: 1
milestone: v1.25
status: execute
phase_role: execution
requirements:
  covered: [REQ-291, REQ-292, REQ-293, REQ-294, REQ-308, REQ-309]
  partial: []
---/ci---

2026-08-12 18:19:16 +00:00

kyverno

Merge milestone/v1.16-nova-simplification — v1.16 complete (Nova Simplification: 20-phase NFR sweep + final; tag v1.15.26)

2026-08-01 13:37:18 +00:00

kyverno-json

feat(P1): kyverno-json engine core + PolicyEngine protocol (REQ-291..294, 308, 309)

2026-08-12 18:19:16 +00:00

terraform

feat(P2): env-transition detect-and-destroy — REQ-282..287

2026-08-12 14:30:24 +00:00

wiz

feat(P4): pipeline hardening — Checkov before plan, Wiz-or-Checkov on plan (REQ-250)

2026-08-11 14:10:42 +00:00

.gitkeep

phase: 6, status: plan-as-execute, persona: lead-developer, task: T-6.1..T-6.4

2026-07-21 18:27:21 +00:00

README.md

Merge milestone/v1.16-nova-simplification — v1.16 complete (Nova Simplification: 20-phase NFR sweep + final; tag v1.15.26)

2026-08-01 13:37:18 +00:00

README.md

Nova Adapters

Overview

Adapters translate the engine-agnostic Target Stack IR to engine-specific formats. The Terraform adapter is the primary adapter (IR → HCL). Policy adapters translate security tool output into normalized PolicyCheckResult records that the confidence signal consumes in an engine-agnostic way.

Existing Adapters

Adapter	Path	Input	Output	Purpose
Terraform adapter	`adapters/terraform/adapter.py`	Stack instance JSON	Terraform HCL (`main.tf`, `terraform.tf`, `providers.tf`)	Compiles IR to Terraform
Checkov adapter	`adapters/terraform/policy/checkov_adapter.py`	Checkov JSON	`PolicyCheckResult` records	Translates Checkov results
Wiz adapter	`adapters/wiz/wiz_adapter.py`	Wiz API issues JSON	`PolicyCheckResult` records	Translates Wiz security findings
Kyverno adapter	`adapters/kyverno/kyverno_adapter.py`	Kyverno PolicyReport JSON	`PolicyCheckResult` records	K8s-native policy translation

How to Write an Adapter

Terraform Adapter Extension

Add a stack type → Terraform type mapping to TYPE_MAP.
Add non-identity input mappings to INPUT_MAP.
Add non-identity output mappings to OUTPUT_MAP.
Add a specialized _emit_resource branch if the resource needs nested blocks (e.g. inline policies, rule sets).

Policy Adapter Pattern

Define SEVERITY_MAP and RESULT_MAP dicts that translate the engine's native severity/result vocabulary to the PolicyCheckResult enums.
Implement _to_pcr(raw_record, contract_id) → PolicyCheckResult dict.
Implement adapt(input_path, contract_id) → list of PolicyCheckResult dicts.
Implement is_configured() → bool (env var check) so the platform can skip the adapter when credentials are absent.

How to Wire an Adapter

Terraform adapter — invoked by scripts/run_platform.sh Step 3 (terraform-plan).
Checkov adapter — invoked by scripts/run_platform.sh Step 5 (checkov).
Wiz / Kyverno adapters — optional Steps 5b/5c, run only when the relevant env vars are set.
All policy adapters output records that are validated against schemas/policy_check_result.schema.json.

Dependencies

jsonschema, pyyaml — used by all adapters for loading and validating inputs.
boto3 — used by the Wiz adapter for AWS API access.
checkov — used by the Checkov adapter to run policy scans.
No external deps for the Terraform adapter (pure Python).

How to Test Adapters

tests/test_adapter.py — Terraform adapter (TYPE_MAP, resource emission, refs, outputs).
tests/test_checkov_adapter.py — Checkov adapter.
tests/test_wiz_adapter.py — Wiz adapter.
tests/test_kyverno_adapter.py — Kyverno adapter.
All adapter tests load fixtures from tests/fixtures/ and use moto for AWS mocking.

Where to Write Tests

tests/test_<adapter_name>.py paired with tests/fixtures/<adapter>_fixture.json.

Adding a New Adapter

Create adapters/<name>/<name>_adapter.py.
Implement adapt() and (for policy adapters) is_configured().
Add the adapter's engine name to the engine enum in schemas/policy_check_result.schema.json if it is a policy adapter.
Write a test (tests/test_<name>_adapter.py) plus a fixture (tests/fixtures/<name>_fixture.json).
Add it to scripts/run_platform.sh if it is invoked at runtime.
Update this README.