Give each service its own store package + manager, and cut the supervise module
along the control/data-plane boundary so nothing in the shared layer reaches up
into the orchestrator.
Stores, by owner:
- bot_bottle/store/ keeps only the shared base (DbStore, migrations) and the
concrete stores that aren't service-owned (audit_store, config_store).
- bot_bottle/orchestrator/store/ now houses the orchestrator-owned stores —
queue_store (supervise queue), secret_store, config_store — plus a new
orchestrator store_manager that migrates them (composing audit/config
downward from the base). The old shared store_manager is gone.
Supervise plane, by tier:
- bot_bottle/supervisor/ (NEUTRAL, importable by every tier including the
gateway): types.py (the Proposal/Response/AuditEntry wire types + the tool/
status/poll constants + the shared daemon constants moved out of
supervise.py) and plan.py (SupervisePlan, a pure DTO).
- bot_bottle/orchestrator/supervisor/ (orchestrator-only): queue.py (the
queue/audit I/O wrappers + render_diff + sha256_hex) and supervise.py (the
Supervise lifecycle that stages the DB via the store manager). Its __init__
re-exports the neutral vocabulary so orchestrator-side callers import from
one place.
The gateway now imports only bot_bottle.supervisor.types (never
bot_bottle.supervise), so the data plane holds no code dependency on the
orchestrator — it reaches the queue over the control-plane RPC. This removes
the circular import that moving queue_store under orchestrator introduced
(supervise -> orchestrator -> service -> supervise).
supervise_types.py -> supervisor/types.py; supervise.py deleted (split). Full
unit suite green (2251).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds a Firecracker-based backend for Linux, providing mature KVM-based
microVM isolation to replace smolmachines/libkrun (issue #342, closes
the dead-end tracked in #332).
Architecture:
- Guest control over SSH (dropbear injected into the rootfs) on a
point-to-point TAP link. `ssh -t` forwards SIGWINCH natively, so no
resize bridge is needed.
- Networking: a one-time, root-provisioned pool of user-owned TAP
devices (no shared bridge → no docker0/virbr0/cni0 collisions) plus a
dedicated `table inet bot_bottle_fc` nftables table (independent of
Docker/ufw/firewalld rules). `./cli.py firecracker setup` prints the
host-appropriate config (NixOS module or sudo script).
- Rootfs: `docker export` → ext4 via `mke2fs -d` (rootless, no mount),
cached by image digest; per-bottle SSH pubkey + IP passed via the
kernel cmdline.
- Sidecar: reuses the Docker bundle, published on the slot's host TAP IP.
- Fail-closed isolation: TAP pool verified at preflight; the egress
boundary is proven empirically post-boot (before the agent runs) by a
canary probe — the VM must fail to reach the host directly, or launch
is refused.
Linux hosts with Firecracker + KVM now default to this backend;
macOS stays on macos-container.
Not yet validated end-to-end on live hardware (requires the one-time
network pool). Unit tests + pyright pass.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G8p32HJgPoS1hLPWubbftM
didericis