493 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			Markdown
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			493 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			Markdown
		
	
	
		
			Executable File
		
	
	
	
	
| # API & CLI Reference
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| 
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| *Purpose* – give operators and integrators a single, authoritative spec for REST/GRPC calls **and** first‑party CLI tools (`stella-cli`, `zastava`, `stella`).  
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| Everything here is *source‑of‑truth* for generated Swagger/OpenAPI and the `--help` screens in the CLIs.
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| 
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| ---
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| 
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| ## 0 Quick Glance
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| 
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| | Area               | Call / Flag                                 | Notes                                                                          |
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| | ------------------ | ------------------------------------------- | ------------------------------------------------------------------------------ |
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| | Scan entry         | `POST /scan`                                | Accepts SBOM or image; sub‑5 s target                                          |
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| | Delta check        | `POST /layers/missing`                      | <20 ms reply; powers *delta SBOM* feature                                      |
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| | Rate‑limit / quota | —                                           | Headers **`X‑Stella‑Quota‑Remaining`**, **`X‑Stella‑Reset`** on every response |
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| | Policy I/O         | `GET /policy/export`, `POST /policy/import` | YAML now; Rego coming                                                          |
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| | Policy lint        | `POST /policy/validate`                     | Returns 200 OK if ruleset passes                                               |
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| | Auth               | `POST /connect/token` (OpenIddict)          | Client‑credentials preferred                                                   |
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| | Health             | `GET /healthz`                              | Simple liveness probe                                                          |
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| | Attestation *      | `POST /attest` (TODO Q1‑2026)               | SLSA provenance + Rekor log                                                    |
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| | CLI flags          | `--sbom-type` `--delta` `--policy-file`     | Added to `stella`                                                             |
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| 
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| \* Marked **TODO** → delivered after sixth month (kept on Feature Matrix “To Do” list).
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| 
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| ---
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| 
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| ## 1 Authentication
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| 
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| Stella Ops uses **OAuth 2.0 / OIDC** (token endpoint mounted via OpenIddict).
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| 
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| ```
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| POST /connect/token
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| Content‑Type: application/x-www-form-urlencoded
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| 
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| grant_type=client_credentials&
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| client_id=ci‑bot&
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| client_secret=REDACTED&
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| scope=stella.api
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| ```
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| 
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| Successful response:
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| 
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| ```json
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| {
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|   "access_token": "eyJraWQi...",
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|   "token_type": "Bearer",
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|   "expires_in": 3600
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| }
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| ```
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| 
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| > **Tip** – pass the token via `Authorization: Bearer <token>` on every call.
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| 
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| ---
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| 
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| ## 2 REST API
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| 
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| ### 2.0 Obtain / Refresh Offline‑Token
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| 
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| ```text
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| POST /token/offline
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| Authorization: Bearer <admin‑token>
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| ```
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| 
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| | Body field | Required | Example | Notes |
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| |------------|----------|---------|-------|
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| | `expiresDays` | no | `30` | Max 90 days |
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| 
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| ```json
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| {
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|   "jwt": "eyJhbGciOiJSUzI1NiIsInR5cCI6...",
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|   "expires": "2025‑08‑17T00:00:00Z"
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| }
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| ```
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| 
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| Token is signed with the backend’s private key and already contains
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| `"maxScansPerDay": {{ quota_token }}`.
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| 
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| 
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| ### 2.1 Scan – Upload SBOM **or** Image
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| 
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| ```
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| POST /scan
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| ```
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| 
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| | Param / Header       | In     | Required | Description                                                           |
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| | -------------------- | ------ | -------- | --------------------------------------------------------------------- |
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| | `X‑Stella‑Sbom‑Type` | header | no       | `trivy-json-v2`, `spdx-json`, `cyclonedx-json`; omitted ➞ auto‑detect |
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| | `?threshold`         | query  | no       | `low`, `medium`, `high`, `critical`; default **critical**             |
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| | body                 | body   | yes      | *Either* SBOM JSON *or* Docker image tarball/upload URL               |
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| 
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| Every successful `/scan` response now includes:
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| 
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| | Header | Example |
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| |--------|---------|
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| | `X‑Stella‑Quota‑Remaining` | `129` |
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| | `X‑Stella‑Reset` | `2025‑07‑18T23:59:59Z` |
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| | `X‑Stella‑Token‑Expires` | `2025‑08‑17T00:00:00Z` |
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| 
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| **Response 200** (scan completed):
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| 
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| ```json
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| {
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|   "digest": "sha256:…",
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|   "summary": {
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|     "Critical": 0,
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|     "High": 3,
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|     "Medium": 12,
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|     "Low": 41
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|   },
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|   "policyStatus": "pass",
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|   "quota": {
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|     "remaining": 131,
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|     "reset": "2025-07-18T00:00:00Z"
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|   }
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| }
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| ```
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| 
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| **Response 202** – queued; polling URL in `Location` header.
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| 
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| ---
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| 
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| ### 2.2 Delta SBOM – Layer Cache Check
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| 
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| ```
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| POST /layers/missing
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| Content‑Type: application/json
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| Authorization: Bearer <token>
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| ```
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| 
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| ```json
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| {
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|   "layers": [
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|     "sha256:d38b...",
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|     "sha256:af45..."
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|   ]
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| }
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| ```
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| 
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| **Response 200** — <20 ms target:
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| 
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| ```json
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| {
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|   "missing": [
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|     "sha256:af45..."
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|   ]
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| }
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| ```
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| 
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| Client then generates SBOM **only** for the `missing` layers and re‑posts `/scan`.
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| 
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| ---
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| 
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| ### 2.3 Policy Endpoints
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| 
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| | Method | Path               | Purpose                              |
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| | ------ | ------------------ | ------------------------------------ |
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| | `GET`  | `/policy/export`   | Download live YAML ruleset           |
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| | `POST` | `/policy/import`   | Upload YAML or Rego; replaces active |
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| | `POST` | `/policy/validate` | Lint only; returns 400 on error      |
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| | `GET`  | `/policy/history`  | Paginated change log (audit trail)   |
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| 
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| ```yaml
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| # Example import payload (YAML)
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| version: "1.0"
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| rules:
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|   - name: Ignore Low dev
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|     severity: [Low, None]
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|     environments: [dev, staging]
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|     action: ignore
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| ```
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| 
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| Validation errors come back as:
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| 
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| ```json
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| {
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|   "errors": [
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|     {
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|       "path": "$.rules[0].severity",
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|       "msg": "Invalid level 'None'"
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|     }
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|   ]
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| }
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| ```
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| 
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| ---
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| 
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| ### 2.4 Attestation (Planned – Q1‑2026)
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| 
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| ```
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| POST /attest
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| ```
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| 
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| | Param       | Purpose                               |
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| | ----------- | ------------------------------------- |
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| | body (JSON) | SLSA v1.0 provenance doc              |
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| |             | Signed + stored in local Rekor mirror |
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| 
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| Returns `202 Accepted` and `Location: /attest/{id}` for async verify.
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| 
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| ---
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| 
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| ## 3 StellaOps CLI (`stellaops-cli`)
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| 
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| The new CLI is built on **System.CommandLine 2.0.0‑beta5** and mirrors the Feedser backend REST API.  
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| Configuration follows the same precedence chain everywhere:
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| 
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| 1. Environment variables (e.g. `API_KEY`, `STELLAOPS_BACKEND_URL`, `StellaOps:ApiKey`)  
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| 2. `appsettings.json` → `appsettings.local.json`  
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| 3. `appsettings.yaml` → `appsettings.local.yaml`  
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| 4. Defaults (`ApiKey = ""`, `BackendUrl = ""`, cache folders under the current working directory)
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| 
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| **Authority auth client resilience settings**
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| 
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| | Setting | Environment variable | Default | Purpose |
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| |---------|----------------------|---------|---------|
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| | `StellaOps:Authority:Resilience:EnableRetries` | `STELLAOPS_AUTHORITY_ENABLE_RETRIES` | `true` | Toggle Polly wait-and-retry handlers for discovery/token calls |
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| | `StellaOps:Authority:Resilience:RetryDelays` | `STELLAOPS_AUTHORITY_RETRY_DELAYS` | `1s,2s,5s` | Comma/space-separated backoff sequence (HH:MM:SS) |
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| | `StellaOps:Authority:Resilience:AllowOfflineCacheFallback` | `STELLAOPS_AUTHORITY_ALLOW_OFFLINE_CACHE_FALLBACK` | `true` | Reuse cached discovery/JWKS metadata when Authority is temporarily unreachable |
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| | `StellaOps:Authority:Resilience:OfflineCacheTolerance` | `STELLAOPS_AUTHORITY_OFFLINE_CACHE_TOLERANCE` | `00:10:00` | Additional tolerance window added to the discovery/JWKS cache lifetime |
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| 
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| See `docs/dev/32_AUTH_CLIENT_GUIDE.md` for recommended profiles (online vs. air-gapped) and testing guidance.
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| 
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| | Command | Purpose | Key Flags / Arguments | Notes |
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| |---------|---------|-----------------------|-------|
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| | `stellaops-cli scanner download` | Fetch and install scanner container | `--channel <stable\|beta\|nightly>` (default `stable`)<br>`--output <path>`<br>`--overwrite`<br>`--no-install` | Saves artefact under `ScannerCacheDirectory`, verifies digest/signature, and executes `docker load` unless `--no-install` is supplied. |
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| | `stellaops-cli scan run` | Execute scanner container against a directory (auto-upload) | `--target <directory>` (required)<br>`--runner <docker\|dotnet\|self>` (default from config)<br>`--entry <image-or-entrypoint>`<br>`[scanner-args...]` | Runs the scanner, writes results into `ResultsDirectory`, emits a structured `scan-run-*.json` metadata file, and automatically uploads the artefact when the exit code is `0`. |
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| | `stellaops-cli scan upload` | Re-upload existing scan artefact | `--file <path>` | Useful for retries when automatic upload fails or when operating offline. |
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| | `stellaops-cli db fetch` | Trigger connector jobs | `--source <id>` (e.g. `redhat`, `osv`)<br>`--stage <fetch\|parse\|map>` (default `fetch`)<br>`--mode <resume|init|cursor>` | Translates to `POST /jobs/source:{source}:{stage}` with `trigger=cli` |
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| | `stellaops-cli db merge` | Run canonical merge reconcile | — | Calls `POST /jobs/merge:reconcile`; exit code `0` on acceptance, `1` on failures/conflicts |
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| | `stellaops-cli db export` | Kick JSON / Trivy exports | `--format <json\|trivy-db>` (default `json`)<br>`--delta`<br>`--publish-full/--publish-delta`<br>`--bundle-full/--bundle-delta` | Sets `{ delta = true }` parameter when requested and can override ORAS/bundle toggles per run |
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| | `stellaops-cli auth <login\|logout\|status\|whoami>` | Manage cached tokens for StellaOps Authority | `auth login --force` (ignore cache)<br>`auth status`<br>`auth whoami` | Uses `StellaOps.Auth.Client`; honours `StellaOps:Authority:*` configuration, stores tokens under `~/.stellaops/tokens` by default, and `whoami` prints subject/scope/expiry |
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| | `stellaops-cli auth revoke export` | Export the Authority revocation bundle | `--output <directory>` (defaults to CWD) | Writes `revocation-bundle.json`, `.json.jws`, and `.json.sha256`; verifies the digest locally and includes key metadata in the log summary. |
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| | `stellaops-cli auth revoke verify` | Validate a revocation bundle offline | `--bundle <path>` `--signature <path>` `--key <path>`<br>`--verbose` | Verifies detached JWS signatures, reports the computed SHA-256, and can fall back to cached JWKS when `--key` is omitted. |
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| | `stellaops-cli config show` | Display resolved configuration | — | Masks secret values; helpful for air‑gapped installs |
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| 
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| When running on an interactive terminal without explicit override flags, the CLI uses Spectre.Console prompts to let you choose per-run ORAS/offline bundle behaviour.
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| 
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| **Startup diagnostics**
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| 
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| - `stellaops-cli` now loads Authority plug-in manifests during startup (respecting `Authority:Plugins:*`) and surfaces analyzer warnings when a plug-in weakens the baseline password policy (minimum length **12** and all character classes required).
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| - Follow the log entry’s config path and raise `passwordPolicy.minimumLength` to at least 12 while keeping `requireUppercase`, `requireLowercase`, `requireDigit`, and `requireSymbol` set to `true` to clear the warning; weakened overrides are treated as actionable security deviations.
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| 
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| **Logging & exit codes**
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| 
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| - Structured logging via `Microsoft.Extensions.Logging` with single-line console output (timestamps in UTC).  
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| - `--verbose / -v` raises log level to `Debug`.  
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| - Command exit codes bubble up: backend conflict → `1`, cancelled via `CTRL+C` → `130`, scanner exit codes propagate as-is.
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| 
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| **Artifact validation**
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| 
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| - Downloads are verified against the `X-StellaOps-Digest` header (SHA-256). When `StellaOps:ScannerSignaturePublicKeyPath` points to a PEM-encoded RSA key, the optional `X-StellaOps-Signature` header is validated as well.
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| - Metadata for each bundle is written alongside the artefact (`*.metadata.json`) with digest, signature, source URL, and timestamps.
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| - Retry behaviour is controlled via `StellaOps:ScannerDownloadAttempts` (default **3** with exponential backoff).
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| - Successful `scan run` executions create timestamped JSON artefacts inside `ResultsDirectory` plus a `scan-run-*.json` metadata envelope documenting the runner, arguments, timing, and stdout/stderr. The artefact is posted back to Feedser automatically.
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| 
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| #### Trivy DB export metadata (`metadata.json`)
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| 
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| `stellaops-cli db export --format trivy-db` (and the backing `POST /jobs/export:trivy-db`) always emits a `metadata.json` document in the OCI layout root. Operators consuming the bundle or delta updates should inspect the following fields:
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| 
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| | Field | Type | Purpose |
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| | ----- | ---- | ------- |
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| | `mode` | `full` \| `delta` | Indicates whether the current run rebuilt the entire database (`full`) or only the changed files (`delta`). |
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| | `baseExportId` | string? | Export ID of the last full baseline that the delta builds upon. Only present for `mode = delta`. |
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| | `baseManifestDigest` | string? | SHA-256 digest of the manifest belonging to the baseline OCI layout. |
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| | `resetBaseline` | boolean | `true` when the exporter rotated the baseline (e.g., repo change, delta chain reset). Treat as a full refresh. |
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| | `treeDigest` | string | Canonical SHA-256 digest of the JSON tree used to build the database. |
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| | `treeBytes` | number | Total bytes across exported JSON files. |
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| | `advisoryCount` | number | Count of advisories included in the export. |
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| | `exporterVersion` | string | Version stamp of `StellaOps.Feedser.Exporter.TrivyDb`. |
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| | `builder` | object? | Raw metadata emitted by `trivy-db build` (version, update cadence, etc.). |
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| | `delta.changedFiles[]` | array | Present when `mode = delta`. Each entry lists `{ "path": "<relative json>", "length": <bytes>, "digest": "sha256:..." }`. |
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| | `delta.removedPaths[]` | array | Paths that existed in the previous manifest but were removed in the new run. |
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| 
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| When the planner opts for a delta run, the exporter copies unmodified blobs from the baseline layout identified by `baseManifestDigest`. Consumers that cache OCI blobs only need to fetch the `changedFiles` and the new manifest/metadata unless `resetBaseline` is true.
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| When pushing to ORAS, set `feedser:exporters:trivyDb:oras:publishFull` / `publishDelta` to control whether full or delta runs are copied to the registry. Offline bundles follow the analogous `includeFull` / `includeDelta` switches under `offlineBundle`.
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| 
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| Example configuration (`appsettings.yaml`):
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| 
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| ```yaml
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| feedser:
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|   exporters:
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|     trivyDb:
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|       oras:
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|         enabled: true
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|         publishFull: true
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|         publishDelta: false
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|       offlineBundle:
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|         enabled: true
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|         includeFull: true
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|         includeDelta: false
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| ```
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| 
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| 
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| **Authentication**
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| 
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| - API key is sent as `Authorization: Bearer <token>` automatically when configured.  
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| - Anonymous operation is permitted only when Feedser runs with
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|   `authority.allowAnonymousFallback: true`. This flag is temporary—plan to disable
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|   it before **2025-12-31 UTC** so bearer tokens become mandatory.
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| 
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| Authority-backed auth workflow:
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| 1. Configure Authority settings via config or env vars (see sample below). Minimum fields: `Url`, `ClientId`, and either `ClientSecret` (client credentials) or `Username`/`Password` (password grant).  
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| 2. Run `stellaops-cli auth login` to acquire and cache a token. Use `--force` if you need to ignore an existing cache entry.  
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| 3. Execute CLI commands as normal—the backend client injects the cached bearer token automatically and retries on transient 401/403 responses with operator guidance.  
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| 4. Inspect the cache with `stellaops-cli auth status` (shows expiry, scope, mode) or clear it via `stellaops-cli auth logout`.  
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| 5. Run `stellaops-cli auth whoami` to dump token subject, audience, issuer, scopes, and remaining lifetime (verbose mode prints additional claims).
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| 6. Expect Feedser to emit audit logs for each `/jobs*` request showing `subject`,
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|    `clientId`, `scopes`, `status`, and whether network bypass rules were applied.
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| 
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| Tokens live in `~/.stellaops/tokens` unless `StellaOps:Authority:TokenCacheDirectory` overrides it. Cached tokens are reused offline until they expire; the CLI surfaces clear errors if refresh fails.
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| 
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| **Configuration file template**
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| 
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| ```jsonc
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| {
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|   "StellaOps": {
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|     "ApiKey": "your-api-token",
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|     "BackendUrl": "https://feedser.example.org",
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|     "ScannerCacheDirectory": "scanners",
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|     "ResultsDirectory": "results",
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|     "DefaultRunner": "docker",
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|     "ScannerSignaturePublicKeyPath": "",
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|     "ScannerDownloadAttempts": 3,
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|     "Authority": {
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|       "Url": "https://authority.example.org",
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|       "ClientId": "feedser-cli",
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|       "ClientSecret": "REDACTED",
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|       "Username": "",
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|       "Password": "",
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|       "Scope": "feedser.jobs.trigger",
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|       "TokenCacheDirectory": ""
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|     }
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|   }
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| }
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| ```
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| 
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| Drop `appsettings.local.json` or `.yaml` beside the binary to override per environment.
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| 
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| ---
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| 
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| ### 2.5 Misc Endpoints
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| 
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| | Path       | Method | Description                  |
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| | ---------- | ------ | ---------------------------- |
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| | `/healthz` | GET    | Liveness; returns `"ok"`     |
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| | `/metrics` | GET    | Prometheus exposition (OTel) |
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| | `/version` | GET    | Git SHA + build date         |
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| 
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| ---
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| 
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| ### 2.6 Authority Admin APIs
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| 
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| Administrative endpoints live under `/internal/*` on the Authority host and require the bootstrap API key (`x-stellaops-bootstrap-key`). Responses are deterministic and audited via `AuthEventRecord`.
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| 
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| | Path | Method | Description |
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| | ---- | ------ | ----------- |
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| | `/internal/revocations/export` | GET | Returns the revocation bundle (JSON + detached JWS + digest). Mirrors the output of `stellaops-cli auth revoke export`. |
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| | `/internal/signing/rotate` | POST | Promotes a new signing key and marks the previous key as retired without restarting the service. |
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| 
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| **Rotate request body**
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| 
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| ```json
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| {
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|   "keyId": "authority-signing-2025",
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|   "location": "../certificates/authority-signing-2025.pem",
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|   "source": "file",
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|   "provider": "default"
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| }
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| ```
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| 
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| The API responds with the active `kid`, previous key (if any), and the set of retired key identifiers. Always export a fresh revocation bundle after rotation so downstream mirrors receive signatures from the new key.
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| 
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| ---
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| 
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| ## 3 First‑Party CLI Tools
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| 
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| ### 3.1 `stella`
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| 
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| > *Package SBOM + Scan + Exit code* – designed for CI.
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| 
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| ```
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| Usage: stella [OPTIONS] IMAGE_OR_SBOM
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| ```
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| 
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| | Flag / Option   | Default                 | Description                                        |
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| | --------------- | ----------------------- | -------------------------------------------------- |
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| | `--server`      | `http://localhost:8080` | API root                                           |
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| | `--token`       | *env `STELLA_TOKEN`*    | Bearer token                                       |
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| | `--sbom-type`   | *auto*                  | Force `trivy-json-v2`/`spdx-json`/`cyclonedx-json` |
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| | `--delta`       | `false`                 | Enable delta layer optimisation                    |
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| | `--policy-file` | *none*                  | Override server rules with local YAML/Rego         |
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| | `--threshold`   | `critical`              | Fail build if ≥ level found                        |
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| | `--output-json` | *none*                  | Write raw scan result to file                      |
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| | `--wait-quota`  | `true`                  | If 429 received, automatically wait `Retry‑After` and retry once. |
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| 
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| **Exit codes**
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| 
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| | Code | Meaning                                     |
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| | ---- | ------------------------------------------- |
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| | 0    | Scan OK, policy passed                      |
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| | 1    | Vulnerabilities ≥ threshold OR policy block |
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| | 2    | Internal error (network etc.)               |
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| 
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| ---
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| 
 | ||
| ### 3.2 `stella‑zastava`
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| 
 | ||
| > *Daemon / K8s DaemonSet* – watch container runtime, push SBOMs.
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| 
 | ||
| Core flags (excerpt):
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| 
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| | Flag             | Purpose                            |
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| | ---------------- | ---------------------------------- |
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| | `--mode`         | `listen` (default) / `enforce`     |
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| | `--filter-image` | Regex; ignore infra/busybox images |
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| | `--threads`      | Worker pool size                   |
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| 
 | ||
| ---
 | ||
| 
 | ||
| ### 3.3 `stellopsctl`
 | ||
| 
 | ||
| > *Admin utility* – policy snapshots, feed status, user CRUD.
 | ||
| 
 | ||
| Examples:
 | ||
| 
 | ||
| ```
 | ||
| stellopsctl policy export > policies/backup-2025-07-14.yaml
 | ||
| stellopsctl feed refresh  # force OSV merge
 | ||
| stellopsctl user add dev-team --role developer
 | ||
| ```
 | ||
| 
 | ||
| ---
 | ||
| 
 | ||
| ## 4 Error Model
 | ||
| 
 | ||
| Uniform problem‑details object (RFC 7807):
 | ||
| 
 | ||
| ```json
 | ||
| {
 | ||
|   "type": "https://stella-ops.org/probs/validation",
 | ||
|   "title": "Invalid request",
 | ||
|   "status": 400,
 | ||
|   "detail": "Layer digest malformed",
 | ||
|   "traceId": "00-7c39..."
 | ||
| }
 | ||
| ```
 | ||
| 
 | ||
| ---
 | ||
| 
 | ||
| ## 5 Rate Limits
 | ||
| 
 | ||
| Default **40 requests / second / token**.  
 | ||
| 429 responses include `Retry-After` seconds header.
 | ||
| 
 | ||
| ---
 | ||
| 
 | ||
| ## 6 FAQ & Tips
 | ||
| 
 | ||
| * **Skip SBOM generation in CI** – supply a *pre‑built* SBOM and add `?sbom-only=true` to `/scan` for <1 s path.  
 | ||
| * **Air‑gapped?** – point `--server` to `http://oukgw:8080` inside the Offline Update Kit.  
 | ||
| * **YAML vs Rego** – YAML simpler; Rego unlocks time‑based logic (see samples).  
 | ||
| * **Cosign verify plug‑ins** – enable `SCANNER_VERIFY_SIG=true` env to refuse unsigned plug‑ins.
 | ||
| 
 | ||
| ---
 | ||
| 
 | ||
| ## 7 Planned Changes (Beyond 6 Months)
 | ||
| 
 | ||
| These stay in *Feature Matrix → To Do* until design is frozen.
 | ||
| 
 | ||
| | Epic / Feature               | API Impact Sketch                  |
 | ||
| | ---------------------------- | ---------------------------------- |
 | ||
| | **SLSA L1‑L3** attestation   | `/attest` (see §2.4)               |
 | ||
| | Rekor transparency log       | `/rekor/log/{id}` (GET)            |
 | ||
| | Plug‑in Marketplace metadata | `/plugins/market` (catalog)        |
 | ||
| | Horizontal scaling controls  | `POST /cluster/node` (add/remove)  |
 | ||
| | Windows agent support        | Update LSAPI to PDE, no API change |
 | ||
| 
 | ||
| ---
 | ||
| 
 | ||
| ## 8 References
 | ||
| 
 | ||
| * OpenAPI YAML → `/openapi/v1.yaml` (served by backend)  
 | ||
| * OAuth2 spec: <https://datatracker.ietf.org/doc/html/rfc6749>  
 | ||
| * SLSA spec: <https://slsa.dev/spec/v1.0>  
 | ||
| 
 | ||
| ---
 | ||
| 
 | ||
| ## 9 Changelog (truncated)
 | ||
| 
 | ||
| * **2025‑07‑14** – added *delta SBOM*, policy import/export, CLI `--sbom-type`.  
 | ||
| * **2025‑07‑12** – initial public reference.
 | ||
| 
 | ||
| ---
 |