7503c19b8f
- Implemented comprehensive tests for verdict artifact generation to ensure deterministic outputs across various scenarios, including identical inputs, parallel execution, and change ordering. - Created helper methods for generating sample verdict inputs and computing canonical hashes. - Added tests to validate the stability of canonical hashes, proof spine ordering, and summary statistics. - Introduced a new PowerShell script to update SHA256 sums for files, ensuring accurate hash generation and file integrity checks.
33 lines
2.2 KiB
Markdown
33 lines
2.2 KiB
Markdown
# Airgap Overview
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This page orients teams before diving into per-component runbooks. It summarises modes, lifecycle, and governance responsibilities for sealed deployments.
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## Modes
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- **Sealed**: deny-all egress; only preloaded bundles (mirror + bootstrap) allowed. Requires exported time anchors and offline trust roots.
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- **Constrained**: limited egress to allowlisted registries and NTP; mirror bundles still preferred.
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- **Connected**: full egress for staging; must remain policy-compatible with sealed mode.
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## Lifecycle
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1. **Prepare bundles**: export mirror + bootstrap packs (images/charts, SBOMs, DSSE metadata) signed and hashed.
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2. **Stage & verify**: load bundles into the offline store, verify hashes/DSSE, record mirrorGeneration.
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3. **Activate**: flip sealed toggle; enforce deny-all egress and policy banners; register bundles with Excititor/Export Center.
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4. **Operate**: run periodic staleness checks, apply time anchors, and audit imports via timeline events.
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5. **Refresh/rollback**: import next mirrorGeneration or roll back using previous manifest + hashes.
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## Responsibilities
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- **AirGap Controller Guild**: owns network posture (deny-all, allowlists), sealed-mode policy banners, and change control.
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- **Export Center / Evidence Locker Guilds**: produce and verify bundle manifests, DSSE envelopes, and Merkle roots.
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- **Module owners** (Excititor, Concelier, etc.): honor sealed-mode toggles, emit staleness headers, and refuse unsigned/unknown bundles.
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- **Ops/Signals Guild**: maintain time anchors and observability sinks compatible with sealed deployments.
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## Rule banner (sealed mode)
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Display a top-of-console banner when `sealed=true`:
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- "Sealed mode: no external egress. Only registered bundles permitted. Imports logged; violations trigger audit."
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- Include current `mirrorGeneration`, bundle manifest hash, and time-anchor status.
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## Related docs
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- `docs/airgap/airgap-mode.md` — deeper policy shapes per mode.
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- `docs/airgap/bundle-repositories.md` — mirror/bootstrap bundle structure.
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- `docs/airgap/staleness-and-time.md` — time anchors and staleness checks.
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- `docs/airgap/controller.md` / `docs/airgap/importer.md` — controller + importer references.
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