# StellaOps Scanner

Scanner analyses container images layer-by-layer, producing deterministic SBOM fragments, diffs, and signed reports.

## Responsibilities
- Expose APIs (WebService) for scan orchestration, diffing, and artifact retrieval.
- Run Worker analyzers for OS, language, and native ecosystems with restart-only plug-ins.
- Store SBOM fragments and artifacts in RustFS/object storage.
- Publish DSSE-ready metadata for Signer/Attestor and downstream policy evaluation.

## Key components
- `StellaOps.Scanner.WebService` minimal API host.
- `StellaOps.Scanner.Worker` analyzer executor.
- Analyzer libraries under `StellaOps.Scanner.Analyzers.*`.

## Integrations & dependencies
- Scheduler for job intake and retries.
- Policy Engine for evidence handoff.
- Export Center / Offline Kit for artifact packaging.

## Operational notes
- CAS caches, bounded retries, DSSE integration.
- Monitoring dashboards (see ./operations/analyzers-grafana-dashboard.json).
- RustFS migration playbook.

## Related resources
- ./operations/analyzers.md
- ./operations/analyzers-grafana-dashboard.json
- ./operations/rustfs-migration.md
- ./operations/entrypoint.md

## Backlog references
- DOCS-SCANNER updates tracked in ../../TASKS.md.
- Analyzer parity work in src/Scanner/**/TASKS.md.

## Epic alignment
- **Epic 6 – Vulnerability Explorer:** provide policy-aware scan outputs, explain traces, and findings ledger hooks for triage workflows.
- **Epic 10 – Export Center:** generate export-ready artefacts, manifests, and DSSE metadata for bundles.