330 lines
9.9 KiB
Markdown
330 lines
9.9 KiB
Markdown
# API & CLI Reference
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*Purpose* – give operators and integrators a single, authoritative spec for REST/GRPC calls **and** first‑party CLI tools (`santech`, `zastava`, `stellopsctl`).
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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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## 0 Quick Glance
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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 `santech` |
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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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## 1 Authentication
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Stella Ops uses **OAuth 2.0 / OIDC** (token endpoint mounted via OpenIddict).
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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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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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Successful response:
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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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> **Tip** – pass the token via `Authorization: Bearer <token>` on every call.
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---
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## 2 REST API
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### 2.0 Obtain / Refresh Offline‑Token
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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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| Body field | Required | Example | Notes |
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|------------|----------|---------|-------|
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| `expiresDays` | no | `30` | Max 90 days |
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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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Token is signed with the backend’s private key and already contains
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`"maxScansPerDay": 333`.
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### 2.1 Scan – Upload SBOM **or** Image
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```
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POST /scan
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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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Every successful `/scan` response now includes:
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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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**Response 200** (scan completed):
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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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**Response 202** – queued; polling URL in `Location` header.
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---
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### 2.2 Delta SBOM – Layer Cache Check
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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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```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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**Response 200** — <20 ms target:
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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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Client then generates SBOM **only** for the `missing` layers and re‑posts `/scan`.
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---
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### 2.3 Policy Endpoints
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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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```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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Validation errors come back as:
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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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### 2.4 Attestation (Planned – Q1‑2026)
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```
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POST /attest
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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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Returns `202 Accepted` and `Location: /attest/{id}` for async verify.
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---
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### 2.5 Misc Endpoints
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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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## 3 First‑Party CLI Tools
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### 3.1 `stella‑santech`
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> *Package SBOM + Scan + Exit code* – designed for CI.
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```
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Usage: santech [OPTIONS] IMAGE_OR_SBOM
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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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**Exit codes**
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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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### 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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| 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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---
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### 3.3 `stellopsctl`
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> *Admin utility* – policy snapshots, feed status, user CRUD.
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Examples:
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```
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stellopsctl policy export > policies/backup-2025-07-14.yaml
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stellopsctl feed refresh # force OSV merge
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stellopsctl user add dev-team --role developer
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```
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---
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## 4 Error Model
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Uniform problem‑details object (RFC 7807):
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```json
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{
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"type": "https://stella-ops.ru/probs/validation",
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"title": "Invalid request",
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"status": 400,
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"detail": "Layer digest malformed",
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"traceId": "00-7c39..."
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}
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```
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---
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## 5 Rate Limits
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Default **40 requests / second / token**.
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429 responses include `Retry-After` seconds header.
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---
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## 6 FAQ & Tips
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* **Skip SBOM generation in CI** – supply a *pre‑built* SBOM and add `?sbom-only=true` to `/scan` for <1 s path.
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* **Air‑gapped?** – point `--server` to `http://oukgw:8080` inside the Offline Update Kit.
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* **YAML vs Rego** – YAML simpler; Rego unlocks time‑based logic (see samples).
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* **Cosign verify plug‑ins** – enable `SCANNER_VERIFY_SIG=true` env to refuse unsigned plug‑ins.
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---
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## 7 Planned Changes (Beyond 6 Months)
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These stay in *Feature Matrix → To Do* until design is frozen.
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| Epic / Feature | API Impact Sketch |
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| ---------------------------- | ---------------------------------- |
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| **SLSA L1‑L3** attestation | `/attest` (see §2.4) |
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| Rekor transparency log | `/rekor/log/{id}` (GET) |
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| Plug‑in Marketplace metadata | `/plugins/market` (catalog) |
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| Horizontal scaling controls | `POST /cluster/node` (add/remove) |
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| Windows agent support | Update LSAPI to PDE, no API change |
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---
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## 8 References
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* OpenAPI YAML → `/openapi/v1.yaml` (served by backend)
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* OAuth2 spec: <https://datatracker.ietf.org/doc/html/rfc6749>
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* SLSA spec: <https://slsa.dev/spec/v1.0>
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---
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## 9 Changelog (truncated)
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* **2025‑07‑14** – added *delta SBOM*, policy import/export, CLI `--sbom-type`.
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* **2025‑07‑12** – initial public reference.
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---
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