Add `FirecrackerGateway`, the Firecracker implementation of the shared `Gateway` service — completing the trio (docker, macOS, firecracker) behind one uniform contract. The gateway here is a whole microVM, so the adapter composes `infra_vm`'s VM primitives (boot, SSH secret push, netpool links) into the ABC surface: `connect_to_orchestrator(url, token)` parses the orchestrator guest IP off the URL and boots the gateway VM seeding the pre-minted token; `address()` is the gateway link's guest IP; `ca_cert_pem()` fetches over SSH (adapting the running VM when this process didn't boot it); `provisioning_transport()` is the SSH exec/cp transport. Trust-model alignment with the other backends: minting moves out of `_push_gateway_jwt` to the host composition point — `ensure_running` mints the role-scoped `gateway` JWT and threads it through `boot_gateway(orch_ip, token)`, so the push step only writes the token the gateway presents (#469). `infra_vm` keeps driving the orchestrator+gateway pair as a singleton and gains gateway-only helpers (`gateway_running`/`stop_gateway`/`gateway_guest_ip`/ `adopted_gateway_vm`); the consolidated launch reads the gateway's transport + CA off the service. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Tests
Plain-Python test suite using stdlib unittest. No external
dependencies. Unit tests run anywhere Python 3 is present; integration
tests run through the backend named by BOT_BOTTLE_BACKEND (default
docker) and skip cleanly when that backend isn't available on the host.
Layout
tests/
fixtures.py # JSON manifest builders (shared)
_backend.py # backend selection + skip guards (shared)
unit/
test_egress.py
test_egress_addon_core.py
test_manifest_egress.py
test_dlp_detectors.py
test_manifest_runtime.py
... # many others; see unit/ directory
integration/
test_gateway_image.py
test_dry_run_plan.py
test_orphan_cleanup.py
...
canaries/ # opt-in; see below (currently empty)
Classification falls out of the directory — no hand-maintained list to keep in sync.
Running
python -m unittest discover -t . -s tests/unit -v # unit only
python -m unittest discover -t . -s tests/integration -v # integration only
python -m unittest discover -t . -s tests -v # both (recursive)
python -m unittest tests.unit.test_manifest_egress # one file
Discovery is invoked with -t . (top-level dir = repo root) so the
bot_bottle package on sys.path resolves correctly.
What the integration tests cover
test_dry_run_plan.py—cli.py start --dry-run --format=jsonemits a structured plan that contains the resolved egress allowlist and the bottle's runtime, and creates zero Docker resources.test_orphan_cleanup.py—network_removeis idempotent against missing resources, so the EXIT trap can call it unconditionally.test_gateway_image.py— builds Dockerfile.gateway and probes that gitleaks / mitmdump / supervise are all reachable inside the gateway image.
Canaries
tests/canaries/ holds upstream-regression checks gated on
BOT_BOTTLE_RUN_CANARIES=1 and not part of the per-push suite.
They're invoked by the scheduled canaries workflow. Currently
no canaries are defined.
BOT_BOTTLE_RUN_CANARIES=1 python -m unittest discover -t . -s tests/canaries -v
What's NOT covered
bot_bottle/ssh.pyend-to-end (would need a fake SSH host inside the container).- A live SSH-through-git-gate tunnel against a real Tailscale-style IP.
- DLP false-positive measurements.
- TLS handling / cert pinning behavior.
Adding a test
-
Pick the directory:
tests/unit/for a pure unit test,tests/integration/for one that needs a backend. -
Filename:
test_<topic>.py. -
Boilerplate:
import unittest from bot_bottle.<module> import <symbol> class TestThing(unittest.TestCase): def test_x(self): ... if __name__ == "__main__": unittest.main() -
Skip guards live in
tests._backendand gate on the backend's own readiness check,bot_bottle.backend.has_backend— the same probe behind./cli.py backend status:- Backend-agnostic tests (go through
get_bottle_backend()) decorate the class with@skip_unless_selected_backend_available()— the test runs against whichever backendBOT_BOTTLE_BACKENDselects and skips unless that backend is available (checking, e.g., Linux +/dev/kvmfor Firecracker rather than unrelated Docker availability). - Backend-specific tests (exercise
DockerBroker,DockerGateway,backend.docker.*, …) decorate with@skip_unless_backend("docker")so they no-op under a run targeting a different backend.
Each CI integration job runs
./cli.py backend status --backend=<name>as a preflight, which prints a clear per-check summary and exits non-zero when the backend is missing — so absent infrastructure fails the job instead of hiding among per-testunittest.skiplines. - Backend-agnostic tests (go through