AOS Hub / Docs

Certification examples

The repository contains executable examples that double as production certification fixtures. They are the best implementation-backed starting points for custom Rust integrations, but most are not installed as operator commands and most gate names are not accepted by crucible selftest.

#End-to-end scenario examples

Example	What it proves	Repository check
`crucible-nginx-curl-http-200.rs`	Builds a workload guest, generates canonical scenario TOML, runs two live VMs, and grades a guest-originated HTTP result.	`checks.crucible.phase7.nginxCurlHttp200`
`crucible-qemu-live-world-network.rs`	Two live guests, deterministic lossy route, guest receipt, search choice, exact checkpoint, and fresh-process replay.	Included by `checks.crucible.phase2.qemuLiveNetworkIo`
`crucible-qemu-signal-shared-cause.rs`	One event drives network forwarder power loss, storage cache loss, and node crash/restart with exact evidence and replay.	`checks.crucible.phase7.signalSharedCause`

The Nginx/Curl program is explained in the quickstart. For new fault authoring, begin with the shared-cause example: it shows the complete topology, signal, binding, target, effect, artifact-store, lifecycle, evidence, checkpoint, and replay path in one place.

#QEMU protocol and adapter examples

Area	Examples	Representative check
Genesis, quantum stepping, preemption	`crucible-qemu-live-genesis`, `-live-node-step`, `-live-plugin-quantum`, `-live-plugin-preemption`	`checks.crucible.phase2.qemuLiveGenesisExecutor` and related phase-2 checks
Fingerprints and exact snapshots	`crucible-qemu-fingerprint`, `-live-plugin-fingerprint`, `-live-exact-snapshot`	`checks.crucible.phase2.qemuSingleVmFingerprint`, `qemuExactSnapshotRestore`
Network	`crucible-qemu-live-network-io` plus the world-network API example above	`checks.crucible.phase2.qemuLiveNetworkIo`
Block storage	`crucible-qemu-live-block-realization`, `-live-block-io`, `-live-block-node`	`checks.crucible.phase2.qemuLiveBlockIo`
9p	`crucible-qemu-live-ninep-io`	`checks.crucible.phase2.qemuLive9pIo`
Node lifecycle	`crucible-qemu-live-node-lifecycle-fault`	`checks.crucible.phase2.qemuLiveNodeLifecycleFault`
CPU, memory, interrupt, clock, accelerator	`crucible-qemu-live-fault-hardware` and its matrix modules	`checks.crucible.phase2.qemuLiveFaultHardware`
Coverage and terminal boundaries	`crucible-qemu-live-coverage`, `-live-terminal-horizon`, `-live-terminal-targets`	Related phase-2 checks

All source files are under crates/crucible-qemu/examples and crates/crucible-api/examples.

#Running the supported checks

Build the complete package and run its public live subset first:

nix build .#pkg-crucible
./result/bin/crucible selftest

Maintainers can build a named repository check directly, for example:

nix-build -A checks.crucible.phase7.signalSharedCause

Repository checks are hermetic and supply the matching QEMU, plugin, kernel, root image, initrd, and run directory. The check path named in the table is the nix-build -A attribute; Crucible's nested repository checks are not all flattened into flake checks outputs.

Do not invoke the examples with host-built QEMU or replace their AOS package dependencies with host tools. Their results certify the versioned process and shared-memory boundary only when the matched closure is used.

#Reading an example safely

Separate fixture details from reusable contracts:

guest payload constants and instruction budgets are fixture-specific;
World, WorldFaultTopology, signal, binding, and property construction are reusable authoring patterns;
ProductionVmLifecycleConfig demonstrates the direct Rust lifecycle path, not an additional CLI configuration file;
machine-readable key=value output is a gate contract, not the canonical event-log format; and
helper modules under an example directory are part of that certification executable, not a stable library API.

For accepted CLI syntax use the command reference. For public Rust contracts use the crate rustdoc and the types re-exported by crucible and crucible-api.