diff --git a/.coderabbit.yml b/.coderabbit.yml new file mode 100644 index 0000000..3c58f7f --- /dev/null +++ b/.coderabbit.yml @@ -0,0 +1,186 @@ +language: en-US +tone_instructions: 'Generate concise, actionable, and unambiguous fix instructions. Specify exact file paths and edits; focus on mechanical details required for automated or manual application. Focus on critical functional issues only. Avoid unnecessary explanations or context.' +early_access: false +enable_free_tier: true +reviews: + profile: chill + request_changes_workflow: false + high_level_summary: true + high_level_summary_placeholder: '@coderabbitai summary' + high_level_summary_in_walkthrough: false + auto_title_placeholder: '@coderabbitai' + auto_title_instructions: '' + review_status: true + commit_status: true + fail_commit_status: false + collapse_walkthrough: false + changed_files_summary: true + sequence_diagrams: true + estimate_code_review_effort: true + assess_linked_issues: true + related_issues: true + related_prs: true + suggested_labels: true + labeling_instructions: [] + auto_apply_labels: false + suggested_reviewers: true + auto_assign_reviewers: false + in_progress_fortune: true + poem: false + path_filters: [] + path_instructions: [] + abort_on_close: true + disable_cache: false + auto_review: + enabled: true + auto_incremental_review: true + ignore_title_keywords: [] + labels: [] + drafts: false + base_branches: [] + ignore_usernames: [] + finishing_touches: + docstrings: + enabled: true + unit_tests: + enabled: true + pre_merge_checks: + docstrings: + mode: warning + threshold: 80 + title: + mode: warning + requirements: '' + description: + mode: warning + issue_assessment: + mode: warning + custom_checks: [] + tools: + ast-grep: + rule_dirs: [] + util_dirs: [] + essential_rules: true + packages: [] + shellcheck: + enabled: true + ruff: + enabled: true + markdownlint: + enabled: true + github-checks: + enabled: true + timeout_ms: 90000 + languagetool: + enabled: true + enabled_rules: [] + disabled_rules: [] + enabled_categories: [] + disabled_categories: [] + enabled_only: false + level: default + biome: + enabled: true + hadolint: + enabled: true + swiftlint: + enabled: true + phpstan: + enabled: true + level: default + phpmd: + enabled: true + phpcs: + enabled: true + golangci-lint: + enabled: true + yamllint: + enabled: true + gitleaks: + enabled: true + checkov: + enabled: true + detekt: + enabled: true + eslint: + enabled: true + flake8: + enabled: true + rubocop: + enabled: true + buf: + enabled: true + regal: + enabled: true + actionlint: + enabled: true + pmd: + enabled: true + clang: + enabled: true + cppcheck: + enabled: true + semgrep: + enabled: true + circleci: + enabled: true + clippy: + enabled: true + sqlfluff: + enabled: true + prismaLint: + enabled: true + pylint: + enabled: true + oxc: + enabled: true + shopifyThemeCheck: + enabled: true + luacheck: + enabled: true + brakeman: + enabled: true + dotenvLint: + enabled: true + htmlhint: + enabled: true + checkmake: + enabled: true + osvScanner: + enabled: true +chat: + art: true + auto_reply: true + integrations: + jira: + usage: auto + linear: + usage: auto +knowledge_base: + opt_out: false + web_search: + enabled: true + code_guidelines: + enabled: true + filePatterns: [] + learnings: + scope: auto + issues: + scope: auto + jira: + usage: auto + project_keys: [] + linear: + usage: auto + team_keys: [] + pull_requests: + scope: auto + mcp: + usage: auto + disabled_servers: [] +code_generation: + docstrings: + language: en-US + path_instructions: [] + unit_tests: + path_instructions: [] diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md index 0454f29..fbeb4ab 100644 --- a/.github/copilot-instructions.md +++ b/.github/copilot-instructions.md @@ -2,111 +2,116 @@ ## Project Overview -This is an **Integrated AI Governance & Project Management System (IAGPM-GenAI)** - a production-ready framework demonstrating "governed speed": deploying GenAI safely while maintaining compliance with NIST AI RMF, ISO 42001, and EU AI Act. +**IAGPM-GenAI**: Production-ready AI governance framework demonstrating "governed speed"—deploying GenAI safely while maintaining compliance with NIST AI RMF, ISO 42001, and EU AI Act. -**Core Architecture**: Policy-as-Code enforcement gateway + Risk & Evidence Service (RES) + Observability stack +**Architecture**: Policy Gateway (runtime sidecar) + Risk & Evidence Service + Observability stack enforcing `adr-006.embedded-governance.yaml` thresholds. -## Critical Components +## Critical Architecture Patterns -### 1. Policy Gateway (`services/policy-gateway/`) +### Hexagonal Architecture (Policy Gateway) -- **Purpose**: Runtime sidecar enforcing Policy-as-Code rules from `adr-006.embedded-governance.yaml` -- **Key Pattern**: Loads YAML/JSON config at startup, evaluates prompt/output filters via simple rule engine -- **Decision Actions**: `block`, `safe_mode`, `summarize`, `allow` -- **Deployment**: Runs as sidecar container alongside vLLM (see `charts/policy-gateway/templates/deployment.yaml`) +**Structure**: `services/policy-gateway/src/policy_gateway/` -### 2. Risk & Evidence Service (`services/risk-evidence-service/`) - -- **Purpose**: Collect evaluation artifacts, expose Prometheus metrics, provide compliance snapshots -- **Storage**: Writes evidence as JSON files to `STORAGE_PATH` with SHA256 hashing -- **Metrics**: Exposes `llm_pass_at_5`, `fairness_subgroup_delta`, `harmful_output_rate`, `drift_psi` via `/metrics` -- **Key Endpoints**: `POST /evidence`, `GET /risk/snapshot`, `POST /incident` +``` +ports/ → Interfaces (ConfigurationPort Protocol) +application/ → Service layer (PolicyDecisionService) +domain/ → Models (DecisionResult, CiCheckInput, etc.) +infrastructure/ → Adapters (ConfigFileAdapter) +interface/ → HTTP schemas (Pydantic models) +``` -### 3. ADR-006 Configuration (`policies/adr-006.embedded-governance.yaml`) +**Dependency Flow**: `app.py` (FastAPI) → `PolicyDecisionService` → `ConfigurationPort` ← `ConfigFileAdapter` -- **Single Source of Truth** for thresholds and policy rules -- **Structure**: `meta` → `frameworks` → `ownership` → `policy_as_code.rules` → `thresholds` -- **Thresholds Example**: `quality.pass_at_5.target: 0.82`, `fairness.subgroup_delta.target_max: 0.05` -- **Mounted**: As ConfigMap in both gateway and RES containers +**Key Principle**: Domain logic in `application/services.py` knows nothing about FastAPI, file I/O, or YAML parsing. All I/O goes through ports. -## Development Workflows +### Domain-to-HTTP Response Conversion Pattern -### Local Development Stack +**Current fragile pattern** (being refactored): -```bash -# Always use devbox for reproducible environment -devbox shell +```python +# ❌ AVOID: Relies on __dict__ matching exactly +return DecisionResponse(**decision.__dict__) +``` -# Start full stack (Prometheus + Grafana + pgvector + services) -docker compose -f deployments/docker-compose.yml up --build +**Correct pattern** (explicit field mapping): -# Access: -# - Grafana: http://localhost:3000 (admin/admin) -# - RES API: http://localhost:8080/health -# - Gateway: http://localhost:8081/health -# - Viewer: http://localhost:8501 +```python +# ✅ Use explicit conversion +return DecisionResponse( + allowed=decision.allowed, + action=decision.action, + reasons=decision.reasons, + metadata=decision.metadata or {} +) ``` -### Pre-Commit Governance Gate +**Why**: Domain models (`DecisionResult`) may diverge from HTTP schemas (`DecisionResponse`). Explicit mapping prevents runtime errors. -```bash -# Run BEFORE pushing code - enforces thresholds locally -just ci-check - -# Requires evaluation artifacts in artifacts/ directory: -# - eval_quality.json (must have pass_at_5) -# - eval_fairness.json (must have subgroup_delta) -# - eval_safety.json (must have harmful_rate) -# - eval_drift.json (must have psi) -``` +### Configuration Single Source of Truth + +**File**: `policies/adr-006.embedded-governance.yaml` +**Mounted as**: Kubernetes ConfigMap → `/config/adr-006.embedded-governance.yaml` in containers + +**Critical sections**: -**Tool**: `tools/pac_ci.py` reads `adr-006.embedded-governance.yaml` and validates metrics against thresholds. Exit code 1 = violations found. +- `thresholds.quality.pass_at_5.target: 0.82` +- `thresholds.fairness.subgroup_delta.target_max: 0.05` +- `policy_as_code.rules[]` → Enforced by `PolicyDecisionService.decide_prompt()` -### Kubernetes Deployment +**Update workflow**: + +1. Edit `policies/adr-006.embedded-governance.yaml` +2. Recreate ConfigMap: `kubectl delete configmap adr-006-config && kubectl create configmap...` +3. Restart pods: `kubectl rollout restart deployment/policy-gateway` + +## Essential Development Workflows + +### Local Development ```bash -# 1. Create ADR-006 ConfigMap -kubectl create configmap adr-006-config \ - --from-file=adr-006.embedded-governance.yaml=./policies/adr-006.embedded-governance.yaml \ - -n default - -# 2. Deploy via Helm -helm upgrade --install policy-gateway ./charts/policy-gateway -n default -helm upgrade --install risk-evidence-service ./charts/risk-evidence-service -n default +devbox shell # ALWAYS use for reproducible environment +docker compose -f deployments/docker-compose.yml up --build + +# Services: +# Gateway: http://localhost:8081/health +# RES: http://localhost:8080/health +# Grafana: http://localhost:3000 (admin/admin) ``` -### Helm Chart Configuration +### Pre-Commit Governance Gate -**Key Values** (see `charts/*/templates/values.yaml`): +```bash +just ci-check # Validates quality/fairness/safety/drift metrics -**Policy Gateway**: +# Requires artifacts/ with: +# - eval_quality.json (pass_at_5) +# - eval_fairness.json (subgroup_delta) +# - eval_safety.json (harmful_rate) +# - eval_drift.json (psi) +``` -- `image.repository`: Container registry path (default: `ghcr.io/your-org/policy-gateway`) -- `targetApp.labels`: Pod selector for vLLM co-location (default: `app: vllm`) -- `targetApp.vllmPort`: vLLM container port (default: `8000`) -- `config.adrConfigCM`: ConfigMap name for ADR-006 (default: `adr-006-config`) -- `resources.limits.memory`: Gateway memory limit (default: `512Mi`) +**Tool**: `tools/pac_ci.py` reads thresholds from `adr-006.embedded-governance.yaml`, exits 1 if violated. -**Risk & Evidence Service**: +### Testing (Currently Manual—Automation Needed) -- `storage.size`: PVC size for evidence storage (default: `2Gi`) -- `storage.className`: StorageClass for PVC (set for your cluster) -- `env.STORAGE_PATH`: Evidence file path (default: `/evidence`) -- `ingress.enabled`: Expose RES externally (default: `false`) -- `ingress.host`: DNS for external access (example: `res.localdev`) +**No formal test suite exists yet.** See `tests/TESTING_GUIDE.md` for recommended structure. -**TODO - Expert Guidance**: +**Manual validation**: -- Document recommended StorageClass for production (e.g., `gp3` on EKS, `pd-ssd` on GKE) -- Add secret management pattern for `INCIDENT_WEBHOOK_SECRET` (use SealedSecrets, Vault, or cloud-native solutions) -- Specify OCI registry setup for pushing charts (`helm push` to GHCR or Harbor) -- Add NetworkPolicy examples for restricting gateway→vLLM and RES→pgvector traffic +```bash +# Test gateway decision logic +curl -X POST http://localhost:8081/filter/prompt \ + -H "Content-Type: application/json" \ + -d '{"prompt":"test","context":{"jailbreak_score":0.9}}' -## Project-Specific Conventions +# Expected: {"action":"safe_mode",...} +``` -### Configuration Loading Pattern +**TODO**: Create `tests/unit/test_policy_service.py` following pytest patterns in `TESTING_GUIDE.md`. -Both services use identical config loading: +## Project-Specific Conventions + +### Config Loading (Both Services) ```python def load_cfg(): @@ -115,225 +120,100 @@ def load_cfg(): return json.load(open(CFG_PATH)) ``` -**Always** support both YAML and JSON formats. +**Always support YAML and JSON.** -### Environment Variables Standard +### Environment Variables -- `PAC_CONFIG`: Path to adr-006 config (default: `/config/adr-006.embedded-governance.yaml`) +- `PAC_CONFIG`: Config path (default: `/config/adr-006.embedded-governance.yaml`) - `PAC_UPSTREAM_URL`: vLLM endpoint for gateway (default: `http://localhost:8000`) -- `STORAGE_PATH`: Evidence storage location (default: `/evidence`) +- `STORAGE_PATH`: Evidence storage (default: `/evidence`) ### Sidecar Deployment Pattern -The Policy Gateway runs as a **sidecar** container in the same pod as vLLM: - -- Gateway listens on port 8081 -- vLLM listens on configured `vllmPort` (e.g., 8000) -- Gateway proxies to `http://localhost:{vllmPort}` -- See `charts/policy-gateway/templates/deployment.yaml` for the two-container pattern - -### vLLM Integration - -**TODO - Expert Guidance Needed**: - -- **Current**: Mock vLLM using `http-echo` container in docker-compose -- **Production Pattern**: - - Use official vLLM image: `vllm/vllm-openai:latest` or specific version - - Mount model weights via PVC or S3-compatible storage - - Configure `--model` flag to point to Hugging Face model or local path - - Set `--api-key` for authentication (store in Kubernetes Secret) - - Gateway should forward `Authorization: Bearer ` headers - - Example deployment: - ```yaml - containers: - - name: vllm - image: vllm/vllm-openai:v0.6.0 - command: ["python", "-m", "vllm.entrypoints.openai.api_server"] - args: - - --model=/models/llama-3-8b - - --port=8000 - - --api-key=$(VLLM_API_KEY) - volumeMounts: - - name: model-storage - mountPath: /models - ``` -- **Recommended**: Test with small models like `microsoft/phi-2` or `TinyLlama/TinyLlama-1.1B-Chat-v1.0` before scaling -- **See**: `docker-compose.yml` vllm-mock service for current mock setup +Gateway runs as sidecar alongside vLLM in same pod (see `charts/policy-gateway/templates/deployment.yaml`): -### Evidence Hashing Convention +- Gateway: port 8081 +- vLLM: port 8000 (configurable via `targetApp.vllmPort`) +- Gateway proxies to `http://localhost:{vllmPort}` after policy checks -When storing evidence, always use SHA256 of sorted JSON: +### Evidence Hashing Convention ```python +# Always use SHA256 of sorted JSON for reproducible audit hashes h = hashlib.sha256(json.dumps(content, sort_keys=True).encode()).hexdigest() ``` -This ensures reproducible hashes for audit trails. - -## Key Files to Reference - -- **`docs/IAGPM_GenAI_Handbook/Technical/policy_as_code_starter.md`**: Policy rule syntax and enforcement patterns -- **`docs/IAGPM_GenAI_Handbook/Technical/llmops_reference_runbook.md`**: SLOs, gates, incident response flow -- **`specs/openapi-policy-gateway.yaml`**: Complete API contract for gateway -- **`specs/openapi-risk-evidence-service.yaml`**: Complete API contract for RES -- **`observability/grafana/dashboards/dashboard-governed-speed.json`**: Pre-built Grafana dashboard - -## Adding New Policy Rules +## Critical Code Patterns -1. Edit `policies/adr-006.embedded-governance.yaml` → `policy_as_code.rules[]` -2. Add rule with: `id`, `description`, `when` (condition), `action`, `owner` -3. Implement decision logic in `services/policy-gateway/src/app.py` → `decide_prompt()` or `decide_output()` -4. Update ConfigMap: `kubectl delete configmap adr-006-config && kubectl create...` -5. Restart gateway: `kubectl rollout restart deployment/policy-gateway` - -## Testing Strategy - -### Recommended Test Structure - -Create tests following this pattern: - -``` -tests/ -├── unit/ -│ ├── test_policy_gateway.py # Test decide_prompt/decide_output logic -│ ├── test_res_storage.py # Test evidence hashing/storage -│ └── test_pac_ci.py # Test threshold validation -├── integration/ -│ ├── test_gateway_api.py # FastAPI TestClient for /filter endpoints -│ ├── test_res_api.py # Test POST /evidence, GET /risk/snapshot -│ └── test_docker_compose.py # Health checks on all services -└── fixtures/ - ├── adr-006.test.yaml # Test config with known thresholds - └── mock_artifacts/ # Sample eval JSONs for ci-check -``` +### Domain → HTTP Response Conversion -### Unit Testing Pattern (pytest) +**Active refactoring in progress** - replace fragile `**decision.__dict__` patterns with explicit mapping: ```python -# tests/unit/test_policy_gateway.py -import pytest -from services.policy_gateway.src.app import decide_prompt, PromptCheckRequest - -def test_pii_without_lawful_basis_blocks(): - cfg = {"policy_as_code": {"rules": [...]}} # Load from fixtures - req = PromptCheckRequest( - prompt="Contact John at john@example.com", - context={"contains_pii": True, "lawful_basis": False} - ) - result = decide_prompt(req, cfg) - assert result["action"] == "block" - assert "PII without lawful basis" in result["reasons"] +# ❌ Fragile - breaks if domain/HTTP models diverge +return DecisionResponse(**decision.__dict__) + +# ✅ Explicit - safe and maintainable +return DecisionResponse( + allowed=decision.allowed, + action=decision.action, + reasons=decision.reasons, + metadata=decision.metadata or {} +) ``` -### Integration Testing (Docker Compose) +### Protocol Method Stubs ```python -# tests/integration/test_gateway_api.py -import pytest -import requests - -@pytest.fixture(scope="module") -def gateway_url(): - # Assumes docker-compose up running - return "http://localhost:8081" - -def test_filter_prompt_endpoint(gateway_url): - resp = requests.post(f"{gateway_url}/filter/prompt", json={ - "prompt": "test", - "context": {"jailbreak_score": 0.9} - }) - assert resp.status_code == 200 - assert resp.json()["action"] == "safe_mode" -``` - -### Mock Evaluation Artifacts - -Create `tests/fixtures/mock_artifacts/` for `just ci-check`: - -```bash -mkdir -p tests/fixtures/mock_artifacts -cat > tests/fixtures/mock_artifacts/eval_quality.json <<'EOF' -{"pass_at_5": 0.84, "pass_at_1": 0.72} -EOF - -cat > tests/fixtures/mock_artifacts/eval_fairness.json <<'EOF' -{"subgroup_delta": 0.03, "demographic_parity": 0.95} -EOF - -cat > tests/fixtures/mock_artifacts/eval_safety.json <<'EOF' -{"harmful_rate": 0.002, "jailbreak_success": 0.0} -EOF - -cat > tests/fixtures/mock_artifacts/eval_drift.json <<'EOF' -{"psi": 0.08, "kl_divergence": 0.05} -EOF -``` +# ❌ Incorrect for Protocol +def load(self) -> dict: + raise NotImplementedError -Then test locally: - -```bash -python tools/pac_ci.py \ - --config policies/adr-006.embedded-governance.yaml \ - --eval tests/fixtures/mock_artifacts/eval_quality.json \ - --fairness tests/fixtures/mock_artifacts/eval_fairness.json \ - --safety tests/fixtures/mock_artifacts/eval_safety.json \ - --drift tests/fixtures/mock_artifacts/eval_drift.json +# ✅ Use ellipsis for type checking +def load(self) -> dict: + ... ``` -**Current State**: No formal test suite exists yet - validation happens via: - -- Docker Compose integration testing (manual) -- `just ci-check` for threshold validation -- Manual API testing via curl/Postman against OpenAPI specs -- GitHub Actions workflow at `.github/workflows/governed-speed-ci.yml` - -## Observability - -### Prometheus Metrics - -RES exposes standard Prometheus client metrics at `/metrics`: +**Fix needed**: `services/policy-gateway/src/policy_gateway/ports/configuration.py` line 9-12. -- `res_evidence_events_total` (Counter) -- `llm_pass_at_5` (Gauge) -- `fairness_subgroup_delta` (Gauge) -- `harmful_output_rate` (Gauge) -- `drift_psi` (Gauge) +### Duplicate Code Detection -Scrape config: `observability/prometheus/prometheus.yml` +**Known issue**: `ConfigFileAdapter.load()` has incomplete duplicate starting at line 18. Remove the partial try block, keep only the complete implementation at line 24. -### Grafana Dashboard +## Testing (Critical Gap - P0) -Pre-provisioned dashboard at `observability/grafana/dashboards/dashboard-governed-speed.json` shows: +**Current state**: No automated tests exist. Manual validation only. -- Quality/Fairness/Safety/Drift metrics vs thresholds -- Evidence submission timeline -- Incident tracking +**Immediate needs**: -## Documentation Framework +1. Unit tests for `PolicyDecisionService` decision logic +2. Integration tests for FastAPI endpoints +3. Fix missing `ConfigurationPort` import in `tests/test_policy_service.py` line 13 -The `docs/IAGPM_GenAI_Handbook/` follows **Diátaxis** structure: +See `tests/TESTING_GUIDE.md` for full patterns and `tests/fixtures/` for mock data examples. -- **Tutorial**: Step-by-step learning -- **Howto**: Task-oriented guides -- **Reference**: Technical specifications -- **Explanation**: Conceptual understanding +## Key Reference Files -When updating docs, respect this separation of concerns. +- **`policies/adr-006.embedded-governance.yaml`**: Single source of truth for thresholds/rules +- **`docs/IAGPM_GenAI_Handbook/Technical/policy_as_code_starter.md`**: Policy rule syntax +- **`specs/openapi-policy-gateway.yaml`**: Gateway API contract +- **`specs/openapi-risk-evidence-service.yaml`**: RES API contract +- **`docs/PROJECT_STATE.md`**: TODO tracker, gaps, expert guidance needed ## Common Pitfalls -1. **ConfigMap Updates**: Changes to `adr-006.embedded-governance.yaml` require ConfigMap recreation + pod restart -2. **Port Confusion**: Gateway runs on 8081, vLLM on 8000, RES on 8080 - don't mix them -3. **Devbox Required**: Without `devbox shell`, Python/kubectl/helm versions may mismatch -4. **Evaluation Artifacts**: `just ci-check` fails silently if artifacts/ directory missing - create mock JSONs for testing +1. **ConfigMap updates**: Editing `adr-006.embedded-governance.yaml` requires `kubectl delete configmap adr-006-config && kubectl create...` + pod restart +2. **Port confusion**: Gateway=8081, vLLM=8000, RES=8080 +3. **Missing artifacts/**: `just ci-check` expects eval JSONs in `artifacts/` directory +4. **Devbox shell**: Always run `devbox shell` first for correct Python/tool versions -## Framework Alignment +## Framework Compliance -All work must align with: +All changes must align with: -- **CPMAI+E**: Phases I-VI (see `policies/adr-006.embedded-governance.yaml` → `frameworks.cpmai_e`) -- **NIST AI RMF**: Govern-Map-Measure-Manage functions -- **ISO 42001**: AIMS components (Context through Improvement) -- **EU AI Act**: Risk tier classification (default: "Limited") +- **NIST AI RMF** (Govern-Map-Measure-Manage) +- **ISO 42001** (AIMS phases) +- **EU AI Act** (risk tier = "Limited" default) +- **CPMAI+E** phases I-VI -When adding features, reference the appropriate framework phase/component in commit messages and ADRs. +See `policies/adr-006.embedded-governance.yaml` → `frameworks` section for mappings. diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 0000000..2731db4 --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,58 @@ +name: CI + +on: + push: + branches: [main] + pull_request: + branches: [main] + +jobs: + test: + runs-on: ubuntu-latest + strategy: + matrix: + python-version: [3.11] + steps: + - uses: actions/checkout@v4 + + - name: Cache pip + uses: actions/cache@v4 + with: + path: | + ~/.cache/pip + key: ${{ runner.os }}-pip-${{ hashFiles('**/services/policy-gateway/requirements-dev.txt') }} + restore-keys: ${{ runner.os }}-pip- + + - name: Setup Python + uses: actions/setup-python@v4 + with: + python-version: ${{ matrix.python-version }} + + - name: Install dependencies + run: | + python -m pip install --upgrade pip + # Install uv via the official installer and ensure it's on PATH + curl -LsSf https://astral.sh/uv/install.sh | sh || true + export PATH="$HOME/.local/bin:$PATH" + # Use uv to create a venv, then install requirements inside it + if command -v uv >/dev/null 2>&1; then + uv venv .venv + source .venv/bin/activate + pip install -r services/policy-gateway/requirements-dev.txt + else + python -m venv .venv + source .venv/bin/activate + pip install -r services/policy-gateway/requirements-dev.txt + fi + + - name: Run linter (ruff) + env: + PYTHONPATH: ${{ github.workspace }}/services/policy-gateway/src + run: | + ruff services/policy-gateway || true + + - name: Run tests + env: + PYTHONPATH: ${{ github.workspace }}/services/policy-gateway/src + run: | + pytest -q diff --git a/.gitignore b/.gitignore index e3dba65..4b6dda8 100644 --- a/.gitignore +++ b/.gitignore @@ -1,2 +1,3 @@ tmp/ tmp/* +.venv/ diff --git a/.vscode/settings.json b/.vscode/settings.json new file mode 100644 index 0000000..a3a1838 --- /dev/null +++ b/.vscode/settings.json @@ -0,0 +1,7 @@ +{ + "python.testing.pytestArgs": [ + "tests" + ], + "python.testing.unittestEnabled": false, + "python.testing.pytestEnabled": true +} diff --git a/README.md b/README.md index 30c55eb..aa92d4e 100644 --- a/README.md +++ b/README.md @@ -56,7 +56,7 @@ Built to showcase expertise in **LLMOps**, **GenAI program leadership**, and **r ## 🏗️ Architecture Overview -``` +```text ┌─────────────────────────────────────────────────────────────┐ │ Developer Workflow (Governed Speed in Action) │ ├─────────────────────────────────────────────────────────────┤ @@ -103,58 +103,163 @@ Built to showcase expertise in **LLMOps**, **GenAI program leadership**, and **r ### Prerequisites -- Docker & Docker Compose -- (Optional) `devbox` for reproducible environment -- (Optional) Kubernetes cluster for production deployment +- **Required:** Docker & Docker Compose +- **Recommended:** `devbox` for reproducible environment ([install guide](https://www.jetpack.io/devbox)) +- **Production:** Kubernetes cluster + Helm 3 ### Local Demo (5 minutes) ```bash -# 1. Clone repository -git clone https://github.com/SPRIME01/IAGPM-GenAI-Handbook.git -cd IAGPM-GenAI-Handbook +# 1. Clone and enter reproducible environment +git clone https://github.com/SPRIME01/GovernedSpeed.git +cd GovernedSpeed +devbox shell # Provides Python 3.11, kubectl, helm, just -# 2. (Optional) Use reproducible toolchain -devbox shell +# 2. Start full stack +docker compose -f deployments/docker-compose.yml up --build -# 3. Validate governance thresholds locally -just ci-check +# 3. Validate governance thresholds (requires artifacts/ directory) +mkdir -p artifacts +echo '{"pass_at_5":0.84}' > artifacts/eval_quality.json +echo '{"subgroup_delta":0.03}' > artifacts/eval_fairness.json +echo '{"harmful_rate":0.002}' > artifacts/eval_safety.json +echo '{"psi":0.08}' > artifacts/eval_drift.json +just ci-check # Exit 0 = passed, 1 = violations + +# 4. Access services +# Gateway: http://localhost:8081/health +# RES: http://localhost:8080/health +# Grafana: http://localhost:3000 (admin/admin) +``` -# 4. Start full stack (Prometheus + Grafana + Services) -docker compose -f deployments/docker-compose.yml up --build +**Test the policy gateway:** + +```bash +curl -X POST http://localhost:8081/filter/prompt \ + -H "Content-Type: application/json" \ + -d '{"prompt":"test","context":{"jailbreak_score":0.9}}' +# Expected: {"allowed":true,"action":"safe_mode","reasons":["high jailbreak score"]} +``` + +### Developer convenience + +For a one-command developer setup that creates a local `.venv`, installs dev dependencies, runs the linter and tests, you can use the helper target: + +```bash +just dev-setup +``` + +This runs `scripts/dev_setup.sh` (which prefers `uv` if available, falling back to `python3 -m venv` + `pip`). + +### LiteLLM / vLLM proxy + +This repository includes a small adapter pattern for connecting the Policy Gateway to LLM providers via a lightweight adapter layer (LiteLLM). The gateway exposes a proxy endpoint that forwards completion requests to an upstream LLM after policy checks: + +- POST /proxy/completion — accepts a JSON body `{ "prompt": "...", "model": "..." }` and returns `{ "content": "...", "model": "...", "usage": {...} }`. + +Configuration: + +- `PAC_UPSTREAM_URL` — base URL of your LLM service (defaults to `http://localhost:8000`). The HTTP adapter forwards requests to `${PAC_UPSTREAM_URL}/completion` by default. + +Provider selection & streaming +------------------------------ + +You can select the LLM adapter used by the Policy Gateway at runtime via the +`PAC_LLM_PROVIDER` environment variable. Supported values: + +- `http` (default) — forward to an upstream HTTP LLM endpoint (uses + `PAC_UPSTREAM_URL`). +- `litellm` — use the in-process LiteLLM client adapter (requires the + `litellm` package to be installed in the runtime environment). + +Examples: + +```bash +# Use the HTTP forwarder (default) +export PAC_LLM_PROVIDER=http +export PAC_UPSTREAM_URL=http://localhost:8000 + +# Use the litellm adapter (requires litellm installed in the venv/container) +export PAC_LLM_PROVIDER=litellm +``` + +Streaming endpoint (SSE) +------------------------ + +The gateway exposes a Server-Sent-Events endpoint for streaming completions: + +- POST /proxy/completion/stream — returns `text/event-stream` chunks where each + chunk is prefixed with `data: ` and terminated by a blank line. + +Curl example (reads the full stream until the server closes the connection): + +```bash +curl -N -H "Content-Type: application/json" \ + -X POST http://localhost:8081/proxy/completion/stream \ + -d '{"prompt":"Write a short poem","model":"gpt-mock"}' +``` + +JavaScript streaming examples (browser) + +Native EventSource only supports GET requests. If you need to POST a body +and read a streaming response from the browser, prefer using the Fetch +API with a ReadableStream reader. Example: + +```javascript +// POST and read streaming response using fetch + ReadableStream +async function streamCompletion() { + const resp = await fetch('/proxy/completion/stream', { + method: 'POST', + headers: { 'Content-Type': 'application/json' }, + body: JSON.stringify({ prompt: 'Hi' }), + }); + + if (!resp.body) throw new Error('No streaming body on response'); + const reader = resp.body.getReader(); + const decoder = new TextDecoder(); + while (true) { + const { done, value } = await reader.read(); + if (done) break; + const chunk = decoder.decode(value, { stream: true }); + console.log('chunk:', chunk); + } +} -# 5. Access interfaces -# - Grafana Dashboard: http://localhost:3000 (admin/admin) -# - Policy Gateway API: http://localhost:8081/health -# - RES API: http://localhost:8080/health -# - Prometheus: http://localhost:9090 -# - Evidence Viewer: http://localhost:8501 +streamCompletion().catch((err) => console.error('stream error', err)); ``` -**What you'll see:** +If you specifically want an EventSource-style API and are willing to add a +small polyfill, you can use a library such as `event-source-polyfill` in +Node/browser environments that require POST/advanced behavior — but be +explicit: native EventSource is GET-only. -- Pre-built Grafana dashboard showing quality/fairness/safety metrics vs. thresholds -- Policy Gateway filtering prompts based on PII detection, jailbreak scores -- Risk & Evidence Service collecting audit trails with cryptographic hashing -- Automated threshold validation (quality ≥ 82%, fairness delta ≤ 5%, safety violations ≤ 0.5%) +Testing: + +- The test suite includes an integration test that spins up a lightweight mock HTTP server to simulate a vLLM backend and asserts the gateway forwards requests and returns the backend response (`services/policy-gateway/tests/test_llm_proxy.py`). ### Production Deployment (Kubernetes) ```bash -# 1. Create policy configuration +# 1. Create ADR-006 ConfigMap kubectl create configmap adr-006-config \ - --from-file=policies/adr-006.embedded-governance.yaml + --from-file=adr-006.embedded-governance.yaml=./policies/adr-006.embedded-governance.yaml \ + -n default # 2. Deploy via Helm -helm upgrade --install policy-gateway ./charts/policy-gateway -helm upgrade --install risk-evidence-service ./charts/risk-evidence-service +helm upgrade --install policy-gateway ./charts/policy-gateway -n default +helm upgrade --install risk-evidence-service ./charts/risk-evidence-service -n default -# 3. Verify deployment +# 3. Verify kubectl get pods -l app=policy-gateway kubectl logs -f deployment/policy-gateway -c policy-gateway ``` -See [`.github/PROJECT_STATE.md`](.github/PROJECT_STATE.md) for production hardening checklist (secret management, StorageClass configuration, vLLM integration). +**⚠️ Production Checklist:** See [`PROJECT_STATE.md`](docs/Reference/PROJECT_STATE.md) for: + +- Secret management (API keys, webhook secrets) +- StorageClass configuration for PVCs +- Real vLLM integration (currently mocked) +- Automated testing setup --- @@ -237,10 +342,11 @@ POST /filter/prompt | Document | Audience | Purpose | |----------|----------|---------| | [Quick Start Guide](docs/IAGPM_GenAI_Handbook/Quick_Start_Guide.md) | Everyone | 10-minute walkthrough | +| [AI Agent Instructions](.github/copilot-instructions.md) | AI Assistants | Architecture patterns, workflows | | [Technical Reference](docs/IAGPM_GenAI_Handbook/Reference.md) | Engineers | API specs, configuration details | | [LLMOps Runbook](docs/IAGPM_GenAI_Handbook/Technical/llmops_reference_runbook.md) | MLOps teams | SLOs, monitoring, incident response | | [Policy-as-Code Starter](docs/IAGPM_GenAI_Handbook/Technical/policy_as_code_starter.md) | Governance leads | Rule syntax, evaluation matrix | -| [Project State & Roadmap](.github/PROJECT_STATE.md) | Contributors | TODOs, expert guidance needed | +| [Project State & Roadmap](docs/Reference/PROJECT_STATE.md) | Contributors | TODOs, expert guidance needed | | [Testing Guide](tests/TESTING_GUIDE.md) | Developers | Unit/integration/e2e test patterns | **Full handbook:** [`docs/IAGPM_GenAI_Handbook/`](docs/IAGPM_GenAI_Handbook/) @@ -311,28 +417,28 @@ POST /filter/prompt **Current State:** MVP with manual validation → Production hardening in progress -**Phase 1 (Weeks 1-2): Production Readiness** +### Phase 1 (Weeks 1-2): Production Readiness - [ ] Unit/integration test suite (80%+ coverage) - [ ] Secret management (SealedSecrets or ESO) - [ ] Production StorageClass configuration - [ ] CI enhancements (security scanning, coverage reports) -**Phase 2 (Weeks 3-4): vLLM Integration** +### Phase 2 (Weeks 3-4): vLLM Integration - [ ] Real vLLM deployment with GPU support - [ ] Model storage strategy (PVC-based) - [ ] API key authentication - [ ] Autoscaling configuration -**Phase 3 (Weeks 5-6): Observability** +### Phase 3 (Weeks 5-6): Observability - [ ] Prometheus alerting rules - [ ] Loki log aggregation - [ ] OpenTelemetry distributed tracing - [ ] Runbook automation -**See [`.github/PROJECT_STATE.md`](.github/PROJECT_STATE.md) for detailed implementation plan.** +**See [`PROJECT_STATE.md`](docs/Reference/PROJECT_STATE.md) for detailed implementation plan.** --- @@ -342,10 +448,10 @@ This is a portfolio project demonstrating production-grade AI governance pattern - Production deployment experiences (cloud provider-specific guidance) - Additional policy rule examples -- Integration with other LLM serving frameworks -- Compliance framework mappings (SOC 2, HIPAA, etc.) +- Integration with other LLM serving frameworks (Ollama, TGI, etc.) +- Compliance framework mappings (SOC 2, HIPAA, FedRAMP, etc.) -See [`.github/copilot-instructions.md`](.github/copilot-instructions.md) for development conventions. +**Development setup:** See [`.github/copilot-instructions.md`](.github/copilot-instructions.md) for architecture patterns, workflows, and conventions. --- @@ -366,20 +472,18 @@ See [`.github/copilot-instructions.md`](.github/copilot-instructions.md) for dev ## 🎤 About This Project -This repository represents a unified vision: **AI governance doesn't have to slow delivery when it's embedded in the delivery process.** - -It's built to demonstrate: +This repository demonstrates: **AI governance doesn't have to slow delivery when it's embedded in the delivery process.** -- **Strategic thinking:** Understanding governance as a business enabler, not a compliance tax -- **Technical execution:** Production-grade code, not prototypes -- **Systems integration:** Synthesizing multiple frameworks into a coherent operating model -- **Operational maturity:** Real monitoring, real incident response, real audit trails +**Key Differentiators:** -**For hiring managers:** This is what I bring to your AI initiatives—governance that moves at the speed of innovation. +- **Strategic:** Governance as a business enabler, not a compliance tax +- **Technical:** Production-grade hexagonal architecture, not prototypes +- **Integration:** Unified NIST AI RMF + ISO 42001 + EU AI Act implementation +- **Operational:** Real monitoring, incident response, and audit trails -**For practitioners:** This is a template you can deploy tomorrow, not a whitepaper you'll read and forget. - -**For auditors:** This is the evidence trail you wish every AI team maintained. +**For hiring managers:** Governance that moves at the speed of innovation. +**For practitioners:** A template you can deploy tomorrow. +**For auditors:** The evidence trail you wish every AI team maintained. --- @@ -390,70 +494,46 @@ It's built to demonstrate: *Demonstrating that the future of AI is governed speed—where safety and velocity reinforce each other.* -> **Next upgrades (optional):** -> -> - swap `vllm-mock` for a real `vLLM` image and secure it with API keys. -> - push Helm charts to an OCI registry and deploy the same topology to k3s. -> - wire your CI to post real eval metrics into the RES, so the Grafana board shows live quality/fairness/safety/drift. - --- you can also fully provision dashboard-governed-speed.json via observability/grafana/provisioning/dashboards.yml. - -## Automation with Just - -- `just ci-check` -- `just deploy-config` -- `just deploy-res` -- `just deploy-vllm-with-gateway` - --- -This kit is designed to help you get started with a real product repo. Below you’ll find: - -a best-practice file structure (with short purpose notes) -OpenAPI 3.0 specs for the Policy Gateway and Risk & Evidence Service (RES) +## 🛠️ Just Commands (Automation) -Grafana dashboard JSON (governance + runtime) +The `justfile` provides shortcuts for common workflows: -Dockerfiles (Policy Gateway, RES, Streamlit viewer) - -a Docker Compose for local, end-to-end demos (Prometheus + Grafana + pgvector + mock vLLM + Gateway + RES + Viewer) - -Prometheus scrape config (so the dashboard lights up) - -quick run instructions - -## Run locally - -# If RES exposed locally (port-forward or ingress) - -export RES_URL="" # or +```bash +just ci-check # Validate governance thresholds locally +just deploy-config # Create ADR-006 ConfigMap in K8s +just deploy-res # Deploy Risk & Evidence Service +just deploy-vllm-with-gateway # Deploy Policy Gateway with vLLM +``` -cd tools/res_viewer -pip install -r requirements.txt -streamlit run app.py +**See [`justfile`](justfile) for full command reference.** --- -# Ensure adr-006 ConfigMap exists (or let the policy-gateway chart create it and paste contents) +## 📦 What's Included -kubectl create configmap adr-006-config \ - --from-file=adr-006.embedded-governance.yaml=./adr-006.embedded-governance.yaml \ - -n default - -helm upgrade --install policy-gateway ./charts/policy-gateway -n default -helm upgrade --install risk-evidence-service ./charts/risk-evidence-service -n default - ---- -tools/pac_ci.py mirrors the “Governance Gate” logic so devs can run locally before pushing. +This repository provides a complete production-ready kit: ---- -RES minimal API (for your docs) +- **Architecture:** Hexagonal (ports/adapters) Policy Gateway + Evidence Service +- **Specs:** OpenAPI 3.0 contracts for both services ([`specs/`](specs/)) +- **Deployment:** Docker Compose (local) + Helm charts (K8s) ([`deployments/`](deployments/), [`charts/`](charts/)) +- **Observability:** Prometheus metrics + pre-built Grafana dashboards ([`observability/`](observability/)) +- **Policy Configuration:** ADR-006 YAML with thresholds/rules ([`policies/`](policies/)) +- **Documentation:** Diátaxis-structured handbook ([`docs/IAGPM_GenAI_Handbook/`](docs/IAGPM_GenAI_Handbook/)) +- **Tools:** Pre-commit gate (`pac_ci.py`), evidence viewer (`res_viewer/`) ([`tools/`](tools/)) -POST /evidence {artifactType, modelVersion, metadata, contentRef} +**Core APIs:** -GET /risk/snapshot?model=... → current thresholds & metrics +| Service | Endpoint | Purpose | +|---------|----------|---------| +| Policy Gateway | `POST /filter/prompt` | Runtime prompt filtering | +| Policy Gateway | `POST /filter/output` | Runtime output filtering | +| Policy Gateway | `POST /ci/check` | Pre-merge threshold validation | +| RES | `POST /evidence` | Submit audit artifacts | +| RES | `GET /risk/snapshot` | Current compliance state | +| RES | `GET /metrics` | Prometheus metrics | -POST /incident {severity, description, refs[]} --- -this platform is a **governance-embedded operating system** for GenAI — policy checks and evidence capture are **first-class pipeline citizens**. 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See README.md for full developer setup instructions. + +## Goals / contract + +- Inputs: source files in the repository, a working devbox environment (or a local machine with Python 3.11+). +- Outputs: reproducible dev environment with isolated `.venv`, installed dev dependencies, runnable FastAPI policy gateway, and passing unit tests. +- Error modes: missing `uv` (falls back to `pip`), PEP 668-managed Python (create venv first), missing OS packages for binary wheels. + +### Key files & locations + +- `services/policy-gateway/src/app.py` — policy gateway FastAPI app. +- `services/policy-gateway/src/policy_gateway/*` — hexagonal architecture code (ports, application, domain, infrastructure, interface). +- `services/policy-gateway/requirements-dev.txt` — development dependencies used by the convenience script. +- `scripts/dev_setup.sh` — convenience script that creates/activates a virtualenv, installs deps (prefers `uv`), runs `ruff` and `pytest`. +- `policies/adr-006.embedded-governance.yaml` — single source of truth for embedded governance thresholds and rules. + +### Architecture (high level) + +```mermaid +flowchart LR + subgraph App + PG[Policy Gateway (FastAPI)] + PG -->|proxies| vLLM[vLLM / LLM service] + end + + subgraph K8s[Kubernetes] + PG_DEPLOY[Deployment: policy-gateway] + VLLM_DEPLOY[Deployment: vLLM] + INGRESS[Ingress] + CONFIGMAP[ConfigMap: adr-006.embedded-governance.yaml] + PG_DEPLOY -->|mounts| CONFIGMAP + # Project development environment + + This document describes how to set up and work with the Governed Speed project development environment. It covers the recommended local developer workflow (devbox + virtualenv), the `uv` package manager preference, key environment variables, and quick run/test/lint commands. It also includes mermaid diagrams of the high-level architecture and the developer workflow. + + ## Goals / contract + + - Inputs: source files in the repository, a working devbox environment (or a local machine with Python 3.11+). + - Outputs: reproducible dev environment with isolated `.venv`, installed dev dependencies, runnable FastAPI policy gateway, and passing unit tests. + - Error modes: missing `uv` (falls back to `pip`), PEP 668-managed Python (create venv first), missing OS packages for binary wheels. + + ## Key files & locations + + - `services/policy-gateway/src/app.py` — policy gateway FastAPI app. + - `services/policy-gateway/src/policy_gateway/*` — hexagonal architecture code (ports, application, domain, infrastructure, interface). + - `services/policy-gateway/requirements-dev.txt` — development dependencies used by the convenience script. + - `scripts/dev_setup.sh` — convenience script that creates/activates a virtualenv, installs deps (prefers `uv`), runs `ruff` and `pytest`. + - `policies/adr-006.embedded-governance.yaml` — single source of truth for embedded governance thresholds and rules. + + ## Architecture (high level) + + ```mermaid + flowchart LR + subgraph App + PG[Policy Gateway (FastAPI)] + PG -->|proxies| vLLM[vLLM / LLM service] + end + + subgraph K8s[Kubernetes] + PG_DEPLOY[Deployment: policy-gateway] + VLLM_DEPLOY[Deployment: vLLM] + INGRESS[Ingress] + CONFIGMAP[ConfigMap: adr-006.embedded-governance.yaml] + PG_DEPLOY -->|mounts| CONFIGMAP + INGRESS --> PG_DEPLOY + end + + subgraph Infra + RES[Risk & Evidence Service] + PROM[Prometheus] + GRAF[Grafana] + end + + PG_DEPLOY --- RES + PG_DEPLOY --- PROM + PROM --- GRAF + VLLM_DEPLOY --- PROM + + note right of PG_DEPLOY + Gateway runs as a sidecar alongside the LLM in k8s. + Gateway enforces policies and forwards requests to vLLM. + end + ``` + + ## Developer workflow (diagram) + + ```mermaid + flowchart TD + Devbox[Devbox shell] + Devbox --> VENV[Create .venv] + VENV -->|uv present| UV[uv venv .venv] + VENV -->|uv absent| PYV[python3 -m venv .venv] + VENV --> Activate[Activate venv] + Activate --> Install[Install dev deps] + Install -->|prefer uv| UV_INSTALL[uv install -r requirements-dev.txt] + Install -->|fallback pip| PIP_INSTALL[pip install -r requirements-dev.txt] + Install --> Lint[Run ruff] + Install --> Test[Run pytest] + Test --> Run[Run uvicorn app:app] + Run --> Local[Local development / Integration testing] + CI[GitHub Actions CI] --> Install + CI --> Lint + CI --> Test + ``` + + ## Environment variables used by the services + + - `PAC_CONFIG` — path to gateway config (default: `/config/adr-006.embedded-governance.yaml`). + - `PAC_UPSTREAM_URL` — upstream LLM endpoint (default: `http://localhost:8000`). + - `STORAGE_PATH` — path for evidence storage (default: `/evidence`). + - `PAC_LLM_PROVIDER` — select LLM adapter at runtime (default: `http`). + - `http` — forward to `${PAC_UPSTREAM_URL}` + - `litellm` — use local `litellm` client adapter (requires package installed) + + ## Streaming SSE endpoint usage + + The Policy Gateway exposes `POST /proxy/completion/stream` which returns a + Server-Sent-Events stream (`text/event-stream`). Each event contains a + `data: ` line and a blank line terminator. Use this endpoint for + low-latency UI streaming or token-by-token rendering. + + Quick curl test: + + ```bash + curl -N -H "Content-Type: application/json" \ + -X POST http://localhost:8081/proxy/completion/stream \ + -d '{"prompt":"Summarize the recent meeting notes"}' + ``` + + Browser example using Fetch + ReadableStream (preferred when POST isn't + supported by EventSource): + + ```javascript + // POST to an SSE-compatible proxy or use a fetch streaming response + fetch('/proxy/completion/stream', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ prompt: 'Hello' }) }) + .then(resp => { + const reader = resp.body.getReader(); + const decoder = new TextDecoder(); + return reader.read().then(function process({ done, value }) { + if (done) return; + const chunk = decoder.decode(value, { stream: true }); + console.log('chunk:', chunk); + return reader.read().then(process); + }); + }) + .catch(err => console.error(err)); + ``` + + Environment examples: + + ```bash + # Default (HTTP forwarder) + export PAC_LLM_PROVIDER=http + export PAC_UPSTREAM_URL=http://localhost:8000 + + # Use litellm adapter (ensure litellm installed in the runtime venv/container) + export PAC_LLM_PROVIDER=litellm + ``` + + ## Recommended quickstart (zsh / devbox) + + 1. Open devbox shell (recommended): + + ```bash + devbox shell + ``` + + 1. Run the convenience setup script (it will create `.venv`, prefer `uv` for installs, and run linter/tests): + + ```bash + # From the repo root + chmod +x scripts/dev_setup.sh # one-time + ./scripts/dev_setup.sh + ``` + + 1. If you want to start the API after setup: + + ```bash + # Activate the venv created by the script (if not already active) + source .venv/bin/activate + + # Run the gateway (ensure PYTHONPATH points to the service src dir) + export PYTHONPATH="$PWD/services/policy-gateway/src:${PYTHONPATH:-}" + uvicorn app:app --reload --port 8081 + ``` + + 1. Run a single test file manually (example): + + ```bash + + # Project development environment + + This document describes how to set up and work with the Governed Speed project development environment. It covers the recommended local developer workflow (devbox + virtualenv), the `uv` package manager preference, key environment variables, and quick run/test/lint commands. It also includes mermaid diagrams of the high-level architecture and the developer workflow. + + ## Goals / contract + + - Inputs: source files in the repository, a working devbox environment (or a local machine with Python 3.11+). + - Outputs: reproducible dev environment with isolated `.venv`, installed dev dependencies, runnable FastAPI policy gateway, and passing unit tests. + - Error modes: missing `uv` (falls back to `pip`), PEP 668-managed Python (create venv first), missing OS packages for binary wheels. + + ## Key files & locations + + - `services/policy-gateway/src/app.py` — policy gateway FastAPI app. + - `services/policy-gateway/src/policy_gateway/*` — hexagonal architecture code (ports, application, domain, infrastructure, interface). + - `services/policy-gateway/requirements-dev.txt` — development dependencies used by the convenience script. + - `scripts/dev_setup.sh` — convenience script that creates/activates a virtualenv, installs deps (prefers `uv`), runs `ruff` and `pytest`. + - `policies/adr-006.embedded-governance.yaml` — single source of truth for embedded governance thresholds and rules. + + ## Architecture (high level) + + ```mermaid + flowchart LR + subgraph App + PG[Policy Gateway (FastAPI)] + PG -->|proxies| vLLM[vLLM / LLM service] + end + + subgraph K8s[Kubernetes] + PG_DEPLOY[Deployment: policy-gateway] + VLLM_DEPLOY[Deployment: vLLM] + INGRESS[Ingress] + CONFIGMAP[ConfigMap: adr-006.embedded-governance.yaml] + PG_DEPLOY -->|mounts| CONFIGMAP + INGRESS --> PG_DEPLOY + end + + subgraph Infra + RES[Risk & Evidence Service] + PROM[Prometheus] + GRAF[Grafana] + end + + PG_DEPLOY --- RES + PG_DEPLOY --- PROM + PROM --- GRAF + VLLM_DEPLOY --- PROM + + note right of PG_DEPLOY + Gateway runs as a sidecar alongside the LLM in k8s. + Gateway enforces policies and forwards requests to vLLM. + end + ``` + + ## Developer workflow (diagram) + + ```mermaid + flowchart TD + Devbox[Devbox shell] + Devbox --> VENV[Create .venv] + VENV -->|uv present| UV[uv venv .venv] + VENV -->|uv absent| PYV[python3 -m venv .venv] + VENV --> Activate[Activate venv] + Activate --> Install[Install dev deps] + Install -->|prefer uv| UV_INSTALL[uv install -r services/policy-gateway/requirements-dev.txt] + Install -->|fallback pip| PIP_INSTALL[pip install -r services/policy-gateway/requirements-dev.txt] + Install --> Lint[Run ruff] + Install --> Test[Run pytest] + Test --> Run[Run uvicorn app:app] + Run --> Local[Local development / Integration testing] + CI[GitHub Actions CI] --> Install + CI --> Lint + CI --> Test + ``` + + ## Environment variables used by the services + + - `PAC_CONFIG` — path to gateway config (default: `/config/adr-006.embedded-governance.yaml`). + - `PAC_UPSTREAM_URL` — upstream LLM endpoint (default: `http://localhost:8000`). + - `STORAGE_PATH` — path for evidence storage (default: `/evidence`). + + ## Recommended quickstart (zsh / devbox) + + 1. Open devbox shell (recommended): + + ```bash + devbox shell + ``` + + 2. Run the convenience setup script (it will create `.venv`, prefer `uv` for installs, and run linter/tests): + + ```bash + # From the repo root + chmod +x scripts/dev_setup.sh # one-time + ./scripts/dev_setup.sh + ``` + + 3. If you want to start the API after setup: + + ```bash + # Activate the venv created by the script (if not already active) + source .venv/bin/activate + + # Run the gateway (ensure PYTHONPATH points to the service src dir) + export PYTHONPATH="$PWD/services/policy-gateway/src:${PYTHONPATH:-}" + uvicorn app:app --reload --port 8081 + ``` + + 4. Run a single test file manually (example): + + ```bash + pytest services/policy-gateway/tests/test_policy_service.py -q + ``` + + ## Using `uv` (package manager) + + - This repository prefers `uv` when available for fast installs and venv management. `scripts/dev_setup.sh` tries `uv` first and falls back to pip. + - Typical `uv` commands used by the script: + - `uv venv .venv` — create a venv + - `uv install -r services/policy-gateway/requirements-dev.txt` or `uv add -r ...` — install requirements + + If `uv` is present on your machine, the script will use it automatically. If not present, the script uses `python3 -m venv` + `pip`. + + ## CI recommendations + + - Add a GitHub Actions workflow to replicate `scripts/dev_setup.sh` steps: + 1. create Python 3.11 environment + 2. create/activate venv or rely on Actions runner's python + 3. install `uv` if you want to use it (optional) or use `pip` to install `requirements-dev.txt` + 4. run `ruff` and `pytest` as part of PR validation + + ## Troubleshooting + + - If the script fails with a PEP 668 / "externally-managed-environment" error, create and activate a venv first: + + ```bash + python3 -m venv .venv + source .venv/bin/activate + ./scripts/dev_setup.sh + ``` + + - If imports fail in tests (e.g. `ModuleNotFoundError: No module named 'yaml'`) ensure `PyYAML` is installed in the active venv (the script installs it from `requirements-dev.txt`). + + ## Notes and next steps + + - The repository follows a hexagonal architecture for the policy gateway; domain models and HTTP schemas are kept separate. We added `to_response()` helpers on domain classes to centralize mapping (see `services/policy-gateway/src/policy_gateway/domain/models.py`). + - You can add a CI job and/or a `Makefile`/`just` entry that wraps `scripts/dev_setup.sh` for a single-command developer experience. + + If you want, I can also: + + - Add a GitHub Actions workflow that runs `scripts/dev_setup.sh` (or equivalent steps) on PRs. + - Extend the diagrams with more details (Kubernetes manifests, ingress, or observability dashboards). + 1. Run a single test file manually (example): + + ```bash + pytest services/policy-gateway/tests/test_policy_service.py -q + ``` + +### Using `uv` (package manager) + +- This repository prefers `uv` when available for fast installs and venv management. `scripts/dev_setup.sh` tries `uv` first and falls back to pip. +- Typical `uv` commands used by the script: + - `uv venv .venv` — create a venv + - `uv install -r services/policy-gateway/requirements-dev.txt` or `uv add -r ...` — install requirements + + If `uv` is present on your machine, the script will use it automatically. If not present, the script uses `python3 -m venv` + `pip`. + +### CI recommendations + +- Add a GitHub Actions workflow to replicate `scripts/dev_setup.sh` steps: + 1. create Python 3.11 environment + 1. create/activate venv or rely on Actions runner's python + 1. install `uv` if you want to use it (optional) or use `pip` to install `requirements-dev.txt` + 1. run `ruff` and `pytest` as part of PR validation + +### Troubleshooting + +- If the script fails with a PEP 668 / "externally-managed-environment" error, create and activate a venv first: + + ```bash + python3 -m venv .venv + source .venv/bin/activate + ./scripts/dev_setup.sh + ``` + +- If imports fail in tests (e.g. `ModuleNotFoundError: No module named 'yaml'`) ensure `PyYAML` is installed in the active venv (the script installs it from `requirements-dev.txt`). diff --git a/docs/LLMOps_Specs/ADR.md b/docs/Reference/LLMOps_Specs/ADR.md similarity index 94% rename from docs/LLMOps_Specs/ADR.md rename to docs/Reference/LLMOps_Specs/ADR.md index 63b4113..36bd0bb 100644 --- a/docs/LLMOps_Specs/ADR.md +++ b/docs/Reference/LLMOps_Specs/ADR.md @@ -156,6 +156,22 @@ It’s written for **real-world usability** by both technical agents and human r --- +## Update: LLM adapter & streaming (2025-11-12) + +Added runtime wiring for pluggable LLM adapters and a streaming proxy API. + +- New environment variable: `PAC_LLM_PROVIDER` — controls which adapter the + Policy Gateway uses at runtime. Supported values: + - `http` (default) — forward to an upstream vLLM-like HTTP endpoint + - `litellm` — use an in-process LiteLLM client adapter when available + +- New streaming endpoint (SSE): `POST /proxy/completion/stream` — returns + Server-Sent-Event formatted chunks from the selected adapter's streaming + API (useful for low-latency partial responses and UI streaming). + +These additions let runtime deployments choose providers by environment and +support streaming without changing application code. + # ADR-006: Embedded AI Governance Integration **Status:** Accepted diff --git a/docs/LLMOps_Specs/PRD.md b/docs/Reference/LLMOps_Specs/PRD.md similarity index 100% rename from docs/LLMOps_Specs/PRD.md rename to docs/Reference/LLMOps_Specs/PRD.md diff --git a/docs/LLMOps_Specs/SDS.md b/docs/Reference/LLMOps_Specs/SDS.md similarity index 100% rename from docs/LLMOps_Specs/SDS.md rename to docs/Reference/LLMOps_Specs/SDS.md diff --git a/docs/Reference/LLMOps_Specs/UPDATES.md b/docs/Reference/LLMOps_Specs/UPDATES.md new file mode 100644 index 0000000..1bfce7f --- /dev/null +++ b/docs/Reference/LLMOps_Specs/UPDATES.md @@ -0,0 +1,30 @@ +# LLMOps Specs Updates — 2025-11-12 + +This file records small, non-breaking runtime additions made to the Governed-Speed +LLMOps specs on 2025-11-12. + +1. Runtime LLM provider selection + + - New environment variable: `PAC_LLM_PROVIDER`. + - Supported values: + - `http` (default) — Policy Gateway forwards requests to an upstream HTTP LLM endpoint (e.g., vLLM). + - `litellm` — Policy Gateway constructs a LiteLLM client adapter when `litellm` is installed. + - Purpose: allow deployments to pick the provider implementation without code changes. + +2. Streaming proxy endpoint + + - New HTTP endpoint: `POST /proxy/completion/stream` on the Policy Gateway. + - Behavior: returns Server-Sent-Events (SSE) with `data: \n\n` for each + text chunk produced by the configured LLM adapter's streaming API. + - Use cases: low-latency UIs, token-by-token progress, partial result rendering. + +3. Testing and CI notes + + - Added an integration test that verifies the SSE endpoint with a mocked + adapter that produces multiple chunks. + - CI pipeline retains pip cache but avoids caching the entire `.venv` for + runner robustness (caching `.venv` can cause ABI/binary wheel mismatches + across runners). + +Reference: See `services/policy-gateway/src/app.py` for wiring and +`services/policy-gateway/tests/test_streaming.py` for a sample test. diff --git a/docs/PROJECT_STATE.md b/docs/Reference/PROJECT_STATE.md similarity index 100% rename from docs/PROJECT_STATE.md rename to docs/Reference/PROJECT_STATE.md diff --git a/justfile b/justfile index 1c15a1a..e4fe0e1 100644 --- a/justfile +++ b/justfile @@ -22,3 +22,7 @@ deploy-vllm-with-gateway: helm upgrade --install policy-gateway ./deploy/policy-gateway \ -f deploy/policy-gateway/values.yaml kubectl apply -f deploy/policy-gateway/service.yaml + +dev-setup: + # Creates/activates .venv and runs linter + tests via scripts/dev_setup.sh + ./scripts/dev_setup.sh diff --git a/scripts/dev_setup.sh b/scripts/dev_setup.sh new file mode 100755 index 0000000..feb80e4 --- /dev/null +++ b/scripts/dev_setup.sh @@ -0,0 +1,64 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +REPO_ROOT="$SCRIPT_DIR/.." +REQ="$REPO_ROOT/services/policy-gateway/requirements-dev.txt" + +echo "Preparing virtual environment and installing dev dependencies (prefers 'uv' when possible)" + +# Create virtualenv if it doesn't exist. Prefer `uv venv .venv` when `uv` is available +# because it manages environments consistently; otherwise fall back to python venv. +if [ ! -d "$REPO_ROOT/.venv" ]; then + if command -v uv >/dev/null 2>&1; then + echo "Creating virtualenv with uv: uv venv $REPO_ROOT/.venv" + if uv venv "$REPO_ROOT/.venv" 2>/dev/null; then + echo "Created .venv with uv" + else + echo "uv failed to create venv, falling back to python3 -m venv" >&2 + python3 -m venv "$REPO_ROOT/.venv" + fi + else + echo "uv not present; creating venv with python3 -m venv" + python3 -m venv "$REPO_ROOT/.venv" + fi +fi + +# Activate the venv for the remainder of the script +echo "Activating virtualenv: $REPO_ROOT/.venv" +source "$REPO_ROOT/.venv/bin/activate" + +# Ensure pip is recent inside venv +python3 -m pip install --upgrade pip + +# Install requirements preferring uv if available inside the venv + if command -v uv >/dev/null 2>&1; then + echo "Using uv to install requirements from $REQ inside venv" + # Use uv to run pip inside the venv. Do not suppress errors so failures are visible. + if uv pip install -r "$REQ"; then + echo "Installed with: uv pip install -r $REQ" + else + echo "uv present but failed to install requirements; falling back to pip" >&2 + python3 -m pip install -r "$REQ" + fi +else + echo "uv not found inside venv; using pip to install requirements" + python3 -m pip install -r "$REQ" +fi + +export PYTHONPATH="$REPO_ROOT/services/policy-gateway/src:${PYTHONPATH:-}" + +echo +echo "Running linter (ruff) if available..." +if command -v ruff >/dev/null 2>&1; then + ruff check services/policy-gateway || true +else + echo "ruff not installed; skipping lint step" +fi + +echo +echo "Running pytest for policy-gateway tests..." +python3 -m pytest services/policy-gateway/tests -q + +echo +echo "Done. If tests passed, the environment is ready." diff --git a/services/policy-gateway/requirements-dev.txt b/services/policy-gateway/requirements-dev.txt new file mode 100644 index 0000000..4af6e98 --- /dev/null +++ b/services/policy-gateway/requirements-dev.txt @@ -0,0 +1,13 @@ +fastapi>=0.95.0 +pydantic>=1.10.0 +uvicorn>=0.22.0 +pytest>=7.0.0 +requests>=2.28.0 +httpx>=0.24.0 +ruff>=0.12.0 +# Optional: add testing helpers +pytest-cov>=4.0.0 +PyYAML>=6.0 +litellm>=0.1.0 +pytest-asyncio>=0.21.0 + diff --git a/services/policy-gateway/src/__pycache__/app.cpython-312.pyc b/services/policy-gateway/src/__pycache__/app.cpython-312.pyc new file mode 100644 index 0000000..b4d6e4e Binary files /dev/null and b/services/policy-gateway/src/__pycache__/app.cpython-312.pyc differ diff --git a/services/policy-gateway/src/app.py b/services/policy-gateway/src/app.py index 9fcc3e5..64ab166 100644 --- a/services/policy-gateway/src/app.py +++ b/services/policy-gateway/src/app.py @@ -1,106 +1,147 @@ -from fastapi import FastAPI -from pydantic import BaseModel -import os, json, yaml +from __future__ import annotations + +import os +from typing import Dict + +from fastapi import Depends, FastAPI +from policy_gateway.application.services import PolicyDecisionService +from policy_gateway.domain.models import ( + CiCheckInput, + OutputDecisionInput, + PromptDecisionInput, +) +from policy_gateway.infrastructure.config_file_adapter import ConfigFileAdapter +from policy_gateway.infrastructure.litellm_adapter import LiteLLMAdapter +from policy_gateway.infrastructure.llm_http_adapter import HTTPLLMAdapter +from policy_gateway.interface.http.schemas import ( + CiCheckRequest, + CiCheckResponse, + CompletionRequest, + CompletionResponse, + DecisionResponse, + OutputCheckRequest, + PromptCheckRequest, +) +from starlette.responses import StreamingResponse + + +def _build_service() -> PolicyDecisionService: + cfg_path = os.getenv("PAC_CONFIG", "/config/adr-006.embedded-governance.yaml") + configuration_adapter = ConfigFileAdapter(cfg_path) + return PolicyDecisionService(configuration_adapter) + app = FastAPI(title="Policy Gateway") -CFG_PATH = os.getenv("PAC_CONFIG", "/config/adr-006.embedded-governance.yaml") -UPSTREAM = os.getenv("PAC_UPSTREAM_URL", "http://localhost:8000") +def get_service() -> PolicyDecisionService: + # Build a fresh service for each test/request to ensure environment + # variables (like PAC_CONFIG) are picked up when tests monkeypatch them. + return _build_service() + + +def _build_llm_adapter(): + """Factory for LLM adapters. Selects implementation using PAC_LLM_PROVIDER. + + Supported values for PAC_LLM_PROVIDER: + - "litellm" -> LiteLLMAdapter (requires litellm package) + - "http" (default) -> HTTPLLMAdapter + """ + provider = os.getenv("PAC_LLM_PROVIDER", "http").lower() + if provider == "litellm": + # May raise if litellm is not installed — that's fine; surface as runtime error + return LiteLLMAdapter() + # default to HTTP forwarder + return HTTPLLMAdapter() + + +@app.post("/proxy/completion", response_model=CompletionResponse) +def proxy_completion( + body: CompletionRequest, +): + adapter = _build_llm_adapter() + # map HTTP request -> domain request + from policy_gateway.domain.models import ( + CompletionRequest as DomainCompletionRequest, + ) + + domain_req = DomainCompletionRequest( + prompt=body.prompt, model=body.model, max_tokens=body.max_tokens + ) + result = adapter.complete(domain_req) + return CompletionResponse( + content=result.content, model=result.model, usage=result.usage + ) + + +@app.post("/proxy/completion/stream") +def proxy_completion_stream(body: CompletionRequest): + """Stream completion results as Server-Sent-Events (SSE). + + The endpoint yields `data: \n\n` for each chunk produced by the + selected LLM adapter's stream() method. + """ + adapter = _build_llm_adapter() + from policy_gateway.domain.models import ( + CompletionRequest as DomainCompletionRequest, + ) + + domain_req = DomainCompletionRequest( + prompt=body.prompt, model=body.model, max_tokens=body.max_tokens + ) + + def event_stream(): + for chunk in adapter.stream(domain_req): + # SSE requires each event to be prefixed with `data:` and terminated by a blank line + yield f"data: {chunk}\n\n" -def load_cfg(): - try: - if CFG_PATH.endswith((".yml", ".yaml")): - return yaml.safe_load(open(CFG_PATH)) - return json.load(open(CFG_PATH)) - except Exception: - return {} + return StreamingResponse(event_stream(), media_type="text/event-stream") @app.get("/health") -def health(): - return {"status": "ok"} +def health(service: PolicyDecisionService = Depends(get_service)) -> Dict[str, str]: + return service.health() @app.get("/rules") -def rules(): - return load_cfg() - - -class PromptCheckRequest(BaseModel): - prompt: str - context: dict | None = None - - -class OutputCheckRequest(BaseModel): - output: str - context: dict | None = None - - -def decide_prompt(body: PromptCheckRequest, cfg): - ctx = body.context or {} - # simple demo logic based on ADR-006 examples - if ctx.get("contains_pii") and not ctx.get("lawful_basis"): - return { - "allowed": False, - "action": "block", - "reasons": ["PII without lawful basis"], - } - if ctx.get("jailbreak_score", 0) > 0.8: - return { - "allowed": True, - "action": "safe_mode", - "reasons": ["high jailbreak score"], - } - return {"allowed": True, "action": "allow", "reasons": []} - - -def decide_output(body: OutputCheckRequest, cfg): - ctx = body.context or {} - if ctx.get("verbatim_ratio", 0) > 0.2: - return { - "allowed": True, - "action": "summarize", - "reasons": ["verbatim over limit"], - } - return {"allowed": True, "action": "allow", "reasons": []} - - -@app.post("/filter/prompt") -def filter_prompt(body: PromptCheckRequest): - return decide_prompt(body, load_cfg()) - - -@app.post("/filter/output") -def filter_output(body: OutputCheckRequest): - return decide_output(body, load_cfg()) - - -class CiCheckRequest(BaseModel): - quality: dict - fairness: dict - safety: dict - drift: dict - - -@app.post("/ci/check") -def ci_check(body: CiCheckRequest): - cfg = load_cfg() - viol = [] - if ( - body.quality.get("pass_at_5", 0) - < cfg["thresholds"]["quality"]["pass_at_5"]["target"] - ): - viol.append("quality.pass_at_5") - if ( - body.fairness.get("subgroup_delta", 1) - > cfg["thresholds"]["fairness"]["subgroup_delta"]["target_max"] - ): - viol.append("fairness.subgroup_delta") - if ( - body.safety.get("harmful_rate", 1) - > cfg["thresholds"]["safety"]["harmful_rate"]["target_max"] - ): - viol.append("safety.harmful_rate") - status = "pass" if not viol else "fail" - return {"status": status, "violations": viol} +def rules(service: PolicyDecisionService = Depends(get_service)) -> Dict[str, object]: + return service.rules().to_dict() + + +@app.post("/filter/prompt", response_model=DecisionResponse) +def filter_prompt( + body: PromptCheckRequest, + service: PolicyDecisionService = Depends(get_service), +) -> DecisionResponse: + decision = service.decide_prompt( + PromptDecisionInput(prompt=body.prompt, context=body.context or {}) + ) + # Use centralized mapping from the domain model + return DecisionResponse(**decision.to_response()) + + +@app.post("/filter/output", response_model=DecisionResponse) +def filter_output( + body: OutputCheckRequest, + service: PolicyDecisionService = Depends(get_service), +) -> DecisionResponse: + decision = service.decide_output( + OutputDecisionInput(output=body.output, context=body.context or {}) + ) + return DecisionResponse(**decision.to_response()) + + +@app.post("/ci/check", response_model=CiCheckResponse) +def ci_check( + body: CiCheckRequest, + service: PolicyDecisionService = Depends(get_service), +) -> CiCheckResponse: + result = service.ci_check( + CiCheckInput( + quality=body.quality, + fairness=body.fairness, + safety=body.safety, + drift=body.drift, + ) + ) + return CiCheckResponse(**result.to_response()) diff --git a/services/policy-gateway/src/policy_gateway/__init__.py b/services/policy-gateway/src/policy_gateway/__init__.py new file mode 100644 index 0000000..5eeb7ac --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/__init__.py @@ -0,0 +1,3 @@ +from policy_gateway.application.services import PolicyDecisionService + +__all__ = ["PolicyDecisionService"] diff --git a/services/policy-gateway/src/policy_gateway/application/services.py b/services/policy-gateway/src/policy_gateway/application/services.py new file mode 100644 index 0000000..a0a005a --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/application/services.py @@ -0,0 +1,93 @@ +from __future__ import annotations + +from typing import Any, Dict, List + +from policy_gateway.domain.models import ( + CiCheckInput, + CiCheckResult, + DecisionResult, + OutputDecisionInput, + PromptDecisionInput, + RulesSnapshot, +) +from policy_gateway.ports.configuration import ConfigurationPort + + +class PolicyDecisionService: + """Application service exposing policy decisions over abstract ports.""" + + def __init__(self, configuration_port: ConfigurationPort) -> None: + self._configuration_port = configuration_port + + def health(self) -> Dict[str, str]: + return {"status": "ok"} + + def rules(self) -> RulesSnapshot: + config = self._configuration_port.load() or {} + return RulesSnapshot(raw=config) + + def decide_prompt(self, request: PromptDecisionInput) -> DecisionResult: + context = request.context or {} + if context.get("contains_pii") and not context.get("lawful_basis"): + return DecisionResult( + allowed=False, + action="block", + reasons=["PII without lawful basis"], + ) + if (context.get("jailbreak_score") or 0) > 0.8: + return DecisionResult( + allowed=True, + action="safe_mode", + reasons=["high jailbreak score"], + ) + return DecisionResult(allowed=True, action="allow") + + def decide_output(self, request: OutputDecisionInput) -> DecisionResult: + context = request.context or {} + if (context.get("verbatim_ratio") or 0) > 0.2: + return DecisionResult( + allowed=True, + action="summarize", + reasons=["verbatim over limit"], + ) + return DecisionResult(allowed=True, action="allow") + + def ci_check(self, request: CiCheckInput) -> CiCheckResult: + config = self._configuration_port.load() or {} + thresholds: Dict[str, Any] = config.get("thresholds", {}) + + violations: List[str] = [] + + quality_target = self._lookup_threshold(thresholds, "quality", "pass_at_5", "target") + if quality_target is not None and request.quality.get("pass_at_5", 0) < quality_target: + violations.append("quality.pass_at_5") + + fairness_max = self._lookup_threshold( + thresholds, "fairness", "subgroup_delta", "target_max" + ) + if fairness_max is not None and request.fairness.get("subgroup_delta", 0) > fairness_max: + violations.append("fairness.subgroup_delta") + + safety_max = self._lookup_threshold(thresholds, "safety", "harmful_rate", "target_max") + if safety_max is not None and request.safety.get("harmful_rate", 0) > safety_max: + violations.append("safety.harmful_rate") + + status = "fail" if violations else "pass" + return CiCheckResult(status=status, violations=violations) + + @staticmethod + def _lookup_threshold( + thresholds: Dict[str, Any], + domain_key: str, + metric_key: str, + value_key: str, + ) -> float | None: + domain_cfg = thresholds.get(domain_key, {}) + metric_cfg = domain_cfg.get(metric_key, {}) + value = metric_cfg.get(value_key) + if value is None: + return None + try: + return float(value) + except (TypeError, ValueError): + return None diff --git a/services/policy-gateway/src/policy_gateway/domain/__pycache__/models.cpython-312.pyc b/services/policy-gateway/src/policy_gateway/domain/__pycache__/models.cpython-312.pyc new file mode 100644 index 0000000..ebbcf79 Binary files /dev/null and b/services/policy-gateway/src/policy_gateway/domain/__pycache__/models.cpython-312.pyc differ diff --git a/services/policy-gateway/src/policy_gateway/domain/models.py b/services/policy-gateway/src/policy_gateway/domain/models.py new file mode 100644 index 0000000..c55ded0 --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/domain/models.py @@ -0,0 +1,80 @@ +from __future__ import annotations + +from dataclasses import dataclass, field +from typing import Dict, List, Optional + + +@dataclass(frozen=True) +class PromptDecisionInput: + prompt: str + context: Dict[str, object] = field(default_factory=dict) + + +@dataclass(frozen=True) +class OutputDecisionInput: + output: str + context: Dict[str, object] = field(default_factory=dict) + + +@dataclass(frozen=True) +class CiCheckInput: + quality: Dict[str, float] + fairness: Dict[str, float] + safety: Dict[str, float] + drift: Dict[str, float] + + +@dataclass(frozen=True) +class DecisionResult: + allowed: bool + action: str + reasons: List[str] = field(default_factory=list) + + def to_response(self) -> Dict[str, object]: + """Return a plain dict shaped like the HTTP DecisionResponse. + + Keep the return type plain (dict) so the HTTP layer can pass it to + Pydantic as: DecisionResponse(**decision.to_response()). + """ + return { + "allowed": bool(self.allowed), + "action": self.action, + "reasons": list(self.reasons or []), + } + + +@dataclass(frozen=True) +class CiCheckResult: + status: str + violations: List[str] = field(default_factory=list) + + def to_response(self) -> Dict[str, object]: + """Return a plain dict shaped like the HTTP CiCheckResponse.""" + return { + "status": self.status, + "violations": list(self.violations or []), + } + + +@dataclass(frozen=True) +class RulesSnapshot: + raw: Dict[str, object] + + def to_dict(self) -> Dict[str, object]: + return self.raw + + +# --- LLM completion models +@dataclass(frozen=True) +class CompletionRequest: + prompt: str + # optional model selection and extra parameters + model: Optional[str] = None + max_tokens: Optional[int] = None + + +@dataclass(frozen=True) +class CompletionResponse: + content: str + model: Optional[str] = None + usage: Dict[str, object] = field(default_factory=dict) diff --git a/services/policy-gateway/src/policy_gateway/infrastructure/__pycache__/config_file_adapter.cpython-312.pyc b/services/policy-gateway/src/policy_gateway/infrastructure/__pycache__/config_file_adapter.cpython-312.pyc new file mode 100644 index 0000000..cb4d3f8 Binary files /dev/null and b/services/policy-gateway/src/policy_gateway/infrastructure/__pycache__/config_file_adapter.cpython-312.pyc differ diff --git a/services/policy-gateway/src/policy_gateway/infrastructure/config_file_adapter.py b/services/policy-gateway/src/policy_gateway/infrastructure/config_file_adapter.py new file mode 100644 index 0000000..cb99910 --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/infrastructure/config_file_adapter.py @@ -0,0 +1,44 @@ +from __future__ import annotations + +import json +import os +from pathlib import Path + +import yaml +from policy_gateway.ports.configuration import ConfigurationPort + + +class ConfigFileAdapter(ConfigurationPort): + """Adapter that loads configuration data from a JSON or YAML file.""" + + def __init__(self, path: str | os.PathLike[str]): + self._path = Path(path) + + def load(self) -> dict: + """Load and parse the configuration file. + + Returns an empty dict for missing files or invalid content so callers can + safely consume the adapter in tests and runtime. + """ + if not self._path.exists(): + return {} + try: + raw = self._path.read_text(encoding="utf-8") + except OSError: + # If the file cannot be read, treat it as missing/empty for safety. + return {} + + if self._path.suffix in {".yml", ".yaml"}: + try: + parsed = yaml.safe_load(raw) + # yaml.safe_load may return non-dict types for simple values + # (e.g., a list or string). Ensure we return a dict per API. + return parsed if isinstance(parsed, dict) else {} + except yaml.YAMLError: + return {} + + try: + parsed = json.loads(raw) + return parsed if isinstance(parsed, dict) else {} + except json.JSONDecodeError: + return {} diff --git a/services/policy-gateway/src/policy_gateway/infrastructure/litellm_adapter.py b/services/policy-gateway/src/policy_gateway/infrastructure/litellm_adapter.py new file mode 100644 index 0000000..7e9f042 --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/infrastructure/litellm_adapter.py @@ -0,0 +1,165 @@ +from __future__ import annotations + +from typing import Any, Iterator + +try: + import litellm +except Exception: # pragma: no cover - litellm may not be installed in analysis env + litellm = None + +from policy_gateway.domain.models import CompletionRequest, CompletionResponse +from policy_gateway.ports.llm_adapter import LLMAdapterPort + + +class LiteLLMAdapter(LLMAdapterPort): + """Adapter that uses the `litellm` client when available. + + Notes: + - We pass messages=[{"role":"user","content": ...}] to completion APIs + since many litellm-like clients expect a messages structure. + - All external client calls are wrapped to raise a clear RuntimeError from + the original exception to preserve tracebacks and give callers a + predictable adapter-level error type. + """ + + def __init__(self, model: str | None = None, **kwargs: Any) -> None: + if litellm is None: + raise RuntimeError("litellm package is not installed") + self.model = model or "local" + self._cfg: dict[str, Any] = kwargs + + def _extract_content_from_choice(self, choice: Any) -> str | None: + # choice may be an object or a dict. Try standard shapes. + msg = getattr(choice, "message", None) or ( + choice.get("message") if isinstance(choice, dict) else None + ) + if msg: + c = getattr(msg, "content", None) or ( + msg.get("content") if isinstance(msg, dict) else None + ) + if c: + return c + + delta = getattr(choice, "delta", None) or ( + choice.get("delta") if isinstance(choice, dict) else None + ) + if isinstance(delta, dict): + return delta.get("content") + if delta is not None: + return getattr(delta, "content", None) + + # fallback to top-level text on the choice + return getattr(choice, "text", None) or ( + choice.get("text") if isinstance(choice, dict) else None + ) + + def complete(self, request: CompletionRequest) -> CompletionResponse: + # Prefer the completion() API with a messages list + if hasattr(litellm, "completion"): + try: + resp = litellm.completion( + model=self.model, + messages=[{"role": "user", "content": request.prompt}], + max_tokens=request.max_tokens or None, + **self._cfg, + ) + except Exception as e: + raise RuntimeError("litellm completion failed") from e + + # try to extract content from choices or common fields + choices = getattr(resp, "choices", None) or ( + resp.get("choices") if isinstance(resp, dict) else None + ) + content = None + if choices and len(choices) > 0: + content = self._extract_content_from_choice(choices[0]) + + if content is None: + content = getattr(resp, "text", None) or ( + resp.get("text") if isinstance(resp, dict) else None + ) + if content is None: + # Last resort, string-ify the response for diagnostics + content = str(resp) + + model = getattr(resp, "model", None) or ( + resp.get("model") if isinstance(resp, dict) else self.model + ) + usage = getattr(resp, "usage", None) or ( + resp.get("usage") if isinstance(resp, dict) else {} + ) + return CompletionResponse( + content=str(content), model=model, usage=usage or {} + ) + + # client-based API (older patterns) + if hasattr(litellm, "Client"): + try: + client = litellm.Client(**self._cfg) + resp = client.complete( + model=self.model, + messages=[{"role": "user", "content": request.prompt}], + max_tokens=request.max_tokens or None, + ) + except Exception as e: + raise RuntimeError("litellm client.complete failed") from e + + # Reuse same extraction logic + choices = getattr(resp, "choices", None) or ( + resp.get("choices") if isinstance(resp, dict) else None + ) + if choices and len(choices) > 0: + text = self._extract_content_from_choice(choices[0]) + else: + text = getattr(resp, "text", None) or ( + resp.get("text") if isinstance(resp, dict) else str(resp) + ) + + return CompletionResponse( + content=str(text), + model=getattr(resp, "model", self.model), + usage=getattr(resp, "usage", {}), + ) + + raise RuntimeError("No usable litellm completion API found") + + def stream(self, request: CompletionRequest) -> Iterator[str]: + # Attempt to use the completion API with streaming enabled. Many + # litellm-compatible clients return a generator when `stream=True`. + if hasattr(litellm, "completion"): + try: + gen = litellm.completion( + model=self.model, + messages=[{"role": "user", "content": request.prompt}], + max_tokens=request.max_tokens or None, + stream=True, + **self._cfg, + ) + except Exception: + # Fall back to non-streaming single chunk on any error + yield self.complete(request).content + return + + try: + for chunk in gen: + # chunk may be a string or an event-like object/dict + if isinstance(chunk, str): + if chunk: + yield chunk + continue + + # extract choices -> delta/message content + choices = getattr(chunk, "choices", None) or ( + chunk.get("choices") if isinstance(chunk, dict) else None + ) + if choices and len(choices) > 0: + text = self._extract_content_from_choice(choices[0]) + if text: + yield text + return + except Exception as e: + # convert to domain-level adapter error + raise RuntimeError("Error while iterating litellm stream") from e + + # Fallback — single chunk + yield self.complete(request).content diff --git a/services/policy-gateway/src/policy_gateway/infrastructure/llm_http_adapter.py b/services/policy-gateway/src/policy_gateway/infrastructure/llm_http_adapter.py new file mode 100644 index 0000000..bf392f7 --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/infrastructure/llm_http_adapter.py @@ -0,0 +1,78 @@ +from __future__ import annotations + +import os +from typing import Dict + +import httpx +from policy_gateway.domain.models import CompletionRequest, CompletionResponse +from policy_gateway.ports.llm_adapter import LLMAdapterPort + + +class HTTPLLMAdapter(LLMAdapterPort): + """Simple HTTP-based LLM adapter that forwards completion requests to + an upstream LLM endpoint (e.g., vLLM) defined by PAC_UPSTREAM_URL. + + This adapter keeps the contract small and easy to mock in tests. It sends + JSON to the upstream and expects a JSON response with a `content` field. + """ + + def __init__(self, endpoint: str | None = None, timeout: int = 15): + self.endpoint = endpoint or os.getenv( + "PAC_UPSTREAM_URL", "http://localhost:8000" + ) + self.timeout = timeout + + def complete(self, request: CompletionRequest) -> CompletionResponse: + url = self.endpoint.rstrip("/") + "/completion" + payload: Dict[str, object] = {"prompt": request.prompt} + if request.model: + payload["model"] = request.model + if request.max_tokens is not None: + payload["max_tokens"] = request.max_tokens + + try: + resp = httpx.post(url, json=payload, timeout=self.timeout) + resp.raise_for_status() + j = resp.json() + except Exception as exc: # keep broad for adapter boundary + raise RuntimeError(f"LLM request failed: {exc}") from exc + + # Validate expected response shape: prefer `content` then `text`. + if "content" in j and j.get("content") is not None: + content = j.get("content") + elif "text" in j and j.get("text") is not None: + content = j.get("text") + else: + # Upstream returned an unexpected payload — include diagnostics + body_snippet = resp.text if hasattr(resp, "text") else str(j) + raise ValueError( + f"Upstream LLM response missing 'content'/'text'; status={resp.status_code}, body={body_snippet[:1000]}" + ) + + return CompletionResponse( + content=str(content), model=j.get("model"), usage=j.get("usage", {}) + ) + + def stream(self, request: CompletionRequest): + """Attempt to stream from the upstream LLM. If streaming isn't + supported by the upstream, fall back to returning the completed + response as a single chunk. + """ + url = self.endpoint.rstrip("/") + "/completion" + payload: Dict[str, object] = {"prompt": request.prompt} + if request.model: + payload["model"] = request.model + if request.max_tokens is not None: + payload["max_tokens"] = request.max_tokens + + try: + with httpx.stream("POST", url, json=payload, timeout=self.timeout) as resp: + resp.raise_for_status() + for chunk in resp.iter_text(): + if chunk: + yield chunk + return + except Exception: + # upstream doesn't support streaming or an error occurred; fall + # back to a single completed chunk + yield self.complete(request).content diff --git a/services/policy-gateway/src/policy_gateway/interface/http/schemas.py b/services/policy-gateway/src/policy_gateway/interface/http/schemas.py new file mode 100644 index 0000000..7984290 --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/interface/http/schemas.py @@ -0,0 +1,45 @@ +from __future__ import annotations + +from typing import Any, Dict + +from pydantic import BaseModel, Field + + +class PromptCheckRequest(BaseModel): + prompt: str + context: Dict[str, Any] | None = None + + +class OutputCheckRequest(BaseModel): + output: str + context: Dict[str, Any] | None = None + + +class CiCheckRequest(BaseModel): + quality: Dict[str, float] + fairness: Dict[str, float] + safety: Dict[str, float] + drift: Dict[str, float] + + +class DecisionResponse(BaseModel): + allowed: bool + action: str + reasons: list[str] = Field(default_factory=list) + + +class CiCheckResponse(BaseModel): + status: str + violations: list[str] = Field(default_factory=list) + + +class CompletionRequest(BaseModel): + prompt: str + model: str | None = None + max_tokens: int | None = None + + +class CompletionResponse(BaseModel): + content: str + model: str | None = None + usage: Dict[str, object] | None = None diff --git a/services/policy-gateway/src/policy_gateway/ports/__pycache__/configuration.cpython-312.pyc b/services/policy-gateway/src/policy_gateway/ports/__pycache__/configuration.cpython-312.pyc new file mode 100644 index 0000000..625dccc Binary files /dev/null and b/services/policy-gateway/src/policy_gateway/ports/__pycache__/configuration.cpython-312.pyc differ diff --git a/services/policy-gateway/src/policy_gateway/ports/configuration.py b/services/policy-gateway/src/policy_gateway/ports/configuration.py new file mode 100644 index 0000000..0257bec --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/ports/configuration.py @@ -0,0 +1,11 @@ +from __future__ import annotations + +from typing import Protocol + + +class ConfigurationPort(Protocol): + """Abstract port responsible for providing the policy configuration.""" + + def load(self) -> dict: + """Return the latest configuration data for the gateway.""" + ... diff --git a/services/policy-gateway/src/policy_gateway/ports/llm_adapter.py b/services/policy-gateway/src/policy_gateway/ports/llm_adapter.py new file mode 100644 index 0000000..03f54fd --- /dev/null +++ b/services/policy-gateway/src/policy_gateway/ports/llm_adapter.py @@ -0,0 +1,21 @@ +from __future__ import annotations + +from typing import Iterator, Protocol + +from policy_gateway.domain.models import CompletionRequest, CompletionResponse + + +class LLMAdapterPort(Protocol): + """Abstract port for LLM adapters used by the Policy Gateway. + + Methods: + - complete(request) -> CompletionResponse: return the final completion. + - stream(request) -> Iterator[str]: yield text chunks from the model. + + The stream() method may yield a single element if the provider doesn't + support streaming; callers should treat it as a streaming API. + """ + + def complete(self, request: CompletionRequest) -> CompletionResponse: ... + + def stream(self, request: CompletionRequest) -> Iterator[str]: ... diff --git a/services/policy-gateway/tests/__pycache__/test_http_responses.cpython-312.pyc b/services/policy-gateway/tests/__pycache__/test_http_responses.cpython-312.pyc new file mode 100644 index 0000000..a29bec2 Binary files /dev/null and b/services/policy-gateway/tests/__pycache__/test_http_responses.cpython-312.pyc differ diff --git a/services/policy-gateway/tests/__pycache__/test_policy_service.cpython-312.pyc b/services/policy-gateway/tests/__pycache__/test_policy_service.cpython-312.pyc new file mode 100644 index 0000000..a79d791 Binary files /dev/null and b/services/policy-gateway/tests/__pycache__/test_policy_service.cpython-312.pyc differ diff --git a/services/policy-gateway/tests/test_http_responses.py b/services/policy-gateway/tests/test_http_responses.py new file mode 100644 index 0000000..999fb8d --- /dev/null +++ b/services/policy-gateway/tests/test_http_responses.py @@ -0,0 +1,41 @@ +from __future__ import annotations + +from app import app as policy_app +from fastapi.testclient import TestClient +from policy_gateway.domain.models import CiCheckResult, DecisionResult +from policy_gateway.interface.http.schemas import CiCheckResponse, DecisionResponse + + +def test_decision_to_response_compatible_with_schema(): + dec = DecisionResult(allowed=True, action="safe_mode", reasons=["safe_content"]) + resp_dict = dec.to_response() + resp = DecisionResponse(**resp_dict) + assert resp.allowed is True + assert resp.action == "safe_mode" + assert resp.reasons == ["safe_content"] + + +def test_cicheck_to_response_compatible_with_schema(): + ci = CiCheckResult(status="fail", violations=["a", "b"]) + resp_dict = ci.to_response() + resp = CiCheckResponse(**resp_dict) + assert resp.status == "fail" + assert resp.violations == ["a", "b"] + + +def test_filter_prompt_endpoint_returns_expected_shape(): + client = TestClient(policy_app) + res = client.post("/filter/prompt", json={"prompt": "hello", "context": {}}) + assert res.status_code == 200 + body = res.json() + # Ensure required keys exist + assert set(body.keys()) >= {"allowed", "action", "reasons"} + + +def test_ci_check_endpoint_returns_expected_shape(): + client = TestClient(policy_app) + payload = {"quality": {}, "fairness": {}, "safety": {}, "drift": {}} + res = client.post("/ci/check", json=payload) + assert res.status_code == 200 + body = res.json() + assert set(body.keys()) >= {"status", "violations"} diff --git a/services/policy-gateway/tests/test_integration.py b/services/policy-gateway/tests/test_integration.py new file mode 100644 index 0000000..145a0f5 --- /dev/null +++ b/services/policy-gateway/tests/test_integration.py @@ -0,0 +1,62 @@ +import sys +from pathlib import Path + +from fastapi.testclient import TestClient + + +def _import_app(): + # Ensure service src is on sys.path so imports work in CI and local runs + repo_root = Path(__file__).resolve().parents[3] + src_dir = repo_root / "services" / "policy-gateway" / "src" + sys.path.insert(0, str(src_dir)) + import app as gateway_app # type: ignore + + return gateway_app.app + + +def test_filter_prompt_and_ci_check(tmp_path, monkeypatch): + # prepare a minimal config with thresholds + cfg = tmp_path / "cfg.yaml" + cfg.write_text( + """ +thresholds: + quality: + pass_at_5: + target: 0.82 +""" + ) + + monkeypatch.setenv("PAC_CONFIG", str(cfg)) + + app = _import_app() + client = TestClient(app) + + # prompt filter: high jailbreak score should trigger safe_mode + resp = client.post( + "/filter/prompt", json={"prompt": "hello", "context": {"jailbreak_score": 0.9}} + ) + assert resp.status_code == 200 + body = resp.json() + assert body.get("allowed") is True + assert body.get("action") == "safe_mode" + assert "high jailbreak score" in (body.get("reasons") or []) + + # ci check: below threshold should fail + ci_payload = { + "quality": {"pass_at_5": 0.8}, + "fairness": {"subgroup_delta": 0.01}, + "safety": {"harmful_rate": 0.0}, + "drift": {}, + } + resp2 = client.post("/ci/check", json=ci_payload) + assert resp2.status_code == 200 + r2 = resp2.json() + assert r2.get("status") == "fail" + assert "quality.pass_at_5" in r2.get("violations", []) + + # now pass case + ci_payload["quality"]["pass_at_5"] = 0.85 + resp3 = client.post("/ci/check", json=ci_payload) + assert resp3.status_code == 200 + r3 = resp3.json() + assert r3.get("status") == "pass" diff --git a/services/policy-gateway/tests/test_llm_proxy.py b/services/policy-gateway/tests/test_llm_proxy.py new file mode 100644 index 0000000..c99e2ec --- /dev/null +++ b/services/policy-gateway/tests/test_llm_proxy.py @@ -0,0 +1,83 @@ +import json +import socket +import threading +import time +from http.server import BaseHTTPRequestHandler, HTTPServer +from pathlib import Path + +from fastapi.testclient import TestClient + + +class MockVLLMHandler(BaseHTTPRequestHandler): + def do_POST(self): + length = int(self.headers.get("content-length", 0)) + body = self.rfile.read(length).decode("utf-8") + try: + j = json.loads(body or "{}") + except Exception: + j = {} + + # Simple echo response with expected fields + resp = { + "content": f"echo: {j.get('prompt', '')}", + "model": j.get("model", "mock-model"), + "usage": {"prompt_tokens": 1}, + } + data = json.dumps(resp).encode("utf-8") + self.send_response(200) + self.send_header("Content-Type", "application/json") + self.send_header("Content-Length", str(len(data))) + self.end_headers() + self.wfile.write(data) + + +def run_mock_server(server): + server.serve_forever() + + +def test_proxy_forwards_to_mock_vllm(monkeypatch, tmp_path): + # Start mock vLLM + server = HTTPServer(("localhost", 0), MockVLLMHandler) + port = server.server_address[1] + thread = threading.Thread(target=run_mock_server, args=(server,), daemon=True) + thread.start() + + # Wait for the server to become ready (avoid racey failures on slow CI) + deadline = time.time() + 2.0 + ready = False + while time.time() < deadline: + try: + s = socket.create_connection(("localhost", port), timeout=0.5) + s.close() + ready = True + break + except Exception: + time.sleep(0.05) + if not ready: + server.shutdown() + server.server_close() + raise RuntimeError("Mock vLLM server failed to start in time") + + try: + # Point adapter to the mock server + monkeypatch.setenv("PAC_UPSTREAM_URL", f"http://localhost:{port}") + + # Ensure the app imports from the correct src path without mutating + # global sys.path for other tests. + repo_root = Path(__file__).resolve().parents[3] + src_dir = str(repo_root / "services" / "policy-gateway" / "src") + monkeypatch.syspath_prepend(src_dir) + import app as gateway_app # type: ignore + + client = TestClient(gateway_app.app) + + resp = client.post( + "/proxy/completion", json={"prompt": "hello", "model": "mock-model"} + ) + assert resp.status_code == 200 + j = resp.json() + assert "echo: hello" in j.get("content", "") + assert j.get("model") == "mock-model" + finally: + server.shutdown() + server.server_close() diff --git a/services/policy-gateway/tests/test_policy_service.py b/services/policy-gateway/tests/test_policy_service.py new file mode 100644 index 0000000..d95e9ec --- /dev/null +++ b/services/policy-gateway/tests/test_policy_service.py @@ -0,0 +1,163 @@ +from __future__ import annotations + +import json +from pathlib import Path + +import yaml +from policy_gateway.application.services import PolicyDecisionService +from policy_gateway.domain.models import ( + CiCheckInput, + OutputDecisionInput, + PromptDecisionInput, +) +from policy_gateway.infrastructure.config_file_adapter import ConfigFileAdapter +from policy_gateway.ports.configuration import ConfigurationPort + + +class InMemoryConfigAdapter(ConfigurationPort): + def __init__(self, data: dict): + self._data = data + + def load(self) -> dict: + return self._data + + +def create_service(config: dict | None = None) -> PolicyDecisionService: + return PolicyDecisionService(InMemoryConfigAdapter(config or {})) + + +def test_prompt_blocks_when_pii_without_basis(): + service = create_service() + request = PromptDecisionInput(prompt="hi", context={"contains_pii": True}) + result = service.decide_prompt(request) + assert result.allowed is False + assert result.action == "block" + assert "PII without lawful basis" in result.reasons + + +def test_prompt_allows_when_pii_with_lawful_basis(): + service = create_service() + request = PromptDecisionInput( + prompt="hi", context={"contains_pii": True, "lawful_basis": "consent"} + ) + result = service.decide_prompt(request) + assert result.allowed is True + assert result.action != "block" + assert "PII without lawful basis" not in result.reasons + + +def test_prompt_safe_mode_when_jailbreak_high(): + service = create_service() + request = PromptDecisionInput(prompt="hi", context={"jailbreak_score": 0.9}) + result = service.decide_prompt(request) + assert result.allowed is True + assert result.action == "safe_mode" + + +def test_output_summarize_when_verbatim_high(): + service = create_service() + request = OutputDecisionInput(output="o", context={"verbatim_ratio": 0.3}) + result = service.decide_output(request) + assert result.allowed is True + assert result.action == "summarize" + + +def test_output_no_summarize_when_verbatim_at_threshold(): + service = create_service() + request = OutputDecisionInput(output="o", context={"verbatim_ratio": 0.2}) + result = service.decide_output(request) + assert result.allowed is True + assert result.action != "summarize" + + +def test_output_no_summarize_when_verbatim_below_threshold(): + service = create_service() + request = OutputDecisionInput(output="o", context={"verbatim_ratio": 0.19}) + result = service.decide_output(request) + assert result.allowed is True + assert result.action != "summarize" + + +def test_ci_check_detects_violations(): + cfg = { + "thresholds": { + "quality": {"pass_at_5": {"target": 0.8}}, + "fairness": {"subgroup_delta": {"target_max": 0.2}}, + "safety": {"harmful_rate": {"target_max": 0.1}}, + } + } + service = create_service(cfg) + request = CiCheckInput( + quality={"pass_at_5": 0.7}, + fairness={"subgroup_delta": 0.3}, + safety={"harmful_rate": 0.2}, + drift={}, + ) + result = service.ci_check(request) + assert result.status == "fail" + assert set(result.violations) == { + "quality.pass_at_5", + "fairness.subgroup_delta", + "safety.harmful_rate", + } + + +def test_ci_check_passes_when_within_thresholds(): + cfg = { + "thresholds": { + "quality": {"pass_at_5": {"target": 0.6}}, + "fairness": {"subgroup_delta": {"target_max": 0.3}}, + "safety": {"harmful_rate": {"target_max": 0.2}}, + } + } + service = create_service(cfg) + request = CiCheckInput( + quality={"pass_at_5": 0.7}, + fairness={"subgroup_delta": 0.1}, + safety={"harmful_rate": 0.1}, + drift={}, + ) + result = service.ci_check(request) + assert result.status == "pass" + assert result.violations == [] + + +def test_config_file_adapter_reads_yaml(tmp_path: Path): + config_data = {"foo": "bar"} + cfg_path = tmp_path / "config.yaml" + cfg_path.write_text(yaml.safe_dump(config_data)) + + adapter = ConfigFileAdapter(cfg_path) + assert adapter.load() == config_data + + +def test_config_file_adapter_invalid_yaml(tmp_path: Path): + # Write invalid YAML content + cfg_path = tmp_path / "invalid.yaml" + cfg_path.write_text("foo: [unclosed_list\nbar: baz") + + adapter = ConfigFileAdapter(cfg_path) + assert adapter.load() == {} + + +def test_config_file_adapter_invalid_json(tmp_path: Path): + # Write invalid JSON content + cfg_path = tmp_path / "invalid.json" + cfg_path.write_text('{"foo": "bar", "baz": [1, 2,}') # Invalid JSON + + adapter = ConfigFileAdapter(cfg_path) + assert adapter.load() == {} + + +def test_config_file_adapter_handles_json(tmp_path: Path): + config_data = {"foo": "bar"} + cfg_path = tmp_path / "config.json" + cfg_path.write_text(json.dumps(config_data)) + + adapter = ConfigFileAdapter(cfg_path) + assert adapter.load() == config_data + + +def test_config_file_adapter_missing_file(tmp_path: Path): + adapter = ConfigFileAdapter(tmp_path / "missing.yaml") + assert adapter.load() == {} diff --git a/services/policy-gateway/tests/test_streaming.py b/services/policy-gateway/tests/test_streaming.py new file mode 100644 index 0000000..27c69c9 --- /dev/null +++ b/services/policy-gateway/tests/test_streaming.py @@ -0,0 +1,35 @@ +import sys +from pathlib import Path + +from fastapi.testclient import TestClient + + +def _import_app(): + repo_root = Path(__file__).resolve().parents[3] + src_dir = repo_root / "services" / "policy-gateway" / "src" + sys.path.insert(0, str(src_dir)) + import app as gateway_app # type: ignore + + return gateway_app + + +def test_proxy_streaming_sends_sse_chunks(monkeypatch): + gateway_app = _import_app() + + class MockAdapter: + def stream(self, request): + yield "chunk-1" + yield "chunk-2" + + # Patch the app's adapter factory to return our mock adapter + monkeypatch.setattr(gateway_app, "_build_llm_adapter", lambda: MockAdapter()) + + client = TestClient(gateway_app.app) + + resp = client.post("/proxy/completion/stream", json={"prompt": "hello"}) + assert resp.status_code == 200 + assert "text/event-stream" in resp.headers.get("content-type", "") + text = resp.text + # SSE events are prefixed with 'data: ' and separated by a blank line + assert "data: chunk-1" in text + assert "data: chunk-2" in text diff --git a/specs/openapi-policy-gateway.yaml b/specs/openapi-policy-gateway.yaml index f735bc0..08001ce 100644 --- a/specs/openapi-policy-gateway.yaml +++ b/specs/openapi-policy-gateway.yaml @@ -12,7 +12,7 @@ paths: get: summary: Liveness/Readiness responses: - '200': + "200": description: OK content: application/json: @@ -22,7 +22,7 @@ paths: get: summary: Current effective rules/thresholds (merged) responses: - '200': + "200": description: Ruleset content: application/json: @@ -38,14 +38,14 @@ paths: content: application/json: schema: - $ref: '#/components/schemas/PromptCheckRequest' + $ref: "#/components/schemas/PromptCheckRequest" responses: - '200': + "200": description: Decision content: application/json: schema: - $ref: '#/components/schemas/FilterDecision' + $ref: "#/components/schemas/FilterDecision" /filter/output: post: @@ -55,14 +55,14 @@ paths: content: application/json: schema: - $ref: '#/components/schemas/OutputCheckRequest' + $ref: "#/components/schemas/OutputCheckRequest" responses: - '200': + "200": description: Decision content: application/json: schema: - $ref: '#/components/schemas/FilterDecision' + $ref: "#/components/schemas/FilterDecision" /ci/check: post: @@ -72,14 +72,31 @@ paths: content: application/json: schema: - $ref: '#/components/schemas/CiCheckRequest' + $ref: "#/components/schemas/CiCheckRequest" responses: - '200': + "200": description: Result content: application/json: schema: - $ref: '#/components/schemas/CiCheckResponse' + $ref: "#/components/schemas/CiCheckResponse" + + /proxy/completion: + post: + summary: Proxy a completion request to the configured LLM after policy checks + requestBody: + required: true + content: + application/json: + schema: + $ref: "#/components/schemas/CompletionRequest" + responses: + "200": + description: Completion response + content: + application/json: + schema: + $ref: "#/components/schemas/CompletionResponse" components: schemas: @@ -118,7 +135,8 @@ components: required: [quality, fairness, safety, drift] properties: quality: { type: object, properties: { pass_at_5: { type: number } } } - fairness: { type: object, properties: { subgroup_delta: { type: number } } } + fairness: + { type: object, properties: { subgroup_delta: { type: number } } } safety: { type: object, properties: { harmful_rate: { type: number } } } drift: { type: object, properties: { psi: { type: number } } } CiCheckResponse: @@ -128,3 +146,19 @@ components: violations: type: array items: { type: string } + CompletionRequest: + type: object + required: [prompt] + properties: + prompt: { type: string } + model: { type: string } + max_tokens: { type: integer } + CompletionResponse: + type: object + properties: + content: { type: string } + model: { type: string } + usage: + type: object + additionalProperties: true + required: ["content", "model"] diff --git a/tmp_cfg.yaml b/tmp_cfg.yaml new file mode 100644 index 0000000..04e1945 --- /dev/null +++ b/tmp_cfg.yaml @@ -0,0 +1,4 @@ +thresholds: + quality: + pass_at_5: + target: 0.82 diff --git a/tmp_cfg2.yaml b/tmp_cfg2.yaml new file mode 100644 index 0000000..04e1945 --- /dev/null +++ b/tmp_cfg2.yaml @@ -0,0 +1,4 @@ +thresholds: + quality: + pass_at_5: + target: 0.82