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bot-bottle/bot_bottle/backend/smolmachines/backend.py
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didericis-claude 37a780acf6
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refactor: make AgentProvisionPlan the source of truth for instance_name, prompt_file, image, dockerfile, guest_home
Drop the parallel fields passed through prepare() → _resolve_plan and
read everything from agent_provision instead. The provider plugin now
declares its own guest_home (so the backend stops hardcoding
"/home/node") and the wrapper that builds the provision plan accepts
instance_name and prompt_file, which providers store on the plan.

DockerBottlePlan and SmolmachinesBottlePlan expose container_name /
machine_name, image / agent_image, dockerfile_path /
agent_dockerfile_path, and prompt_file as properties that delegate to
agent_provision so existing call sites keep working unchanged.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-08 19:23:19 +00:00

94 lines
3.2 KiB
Python

"""SmolmachinesBottleBackend — the smolmachines implementation of
BottleBackend (PRD 0023).
Per PRD 0050 the per-provider provisioning steps (prompt, skills,
the declarative provision-plan apply, supervise MCP registration)
live on the `AgentProvider` plugin under `bot_bottle/contrib/`. The
smolmachines backend only owns the steps that are about backend
infrastructure: CA install (no-op for now), workspace, git copy-in."""
from __future__ import annotations
from contextlib import contextmanager
from pathlib import Path
from typing import Generator, Sequence
from .. import ActiveAgent, Bottle, BottleBackend, BottleSpec
from . import cleanup as _cleanup
from . import enumerate as _enumerate
from . import launch as _launch
from . import resolve_plan as _resolve_plan
from . import smolvm as _smolvm
from .bottle import SmolmachinesBottle
from .bottle_cleanup_plan import SmolmachinesBottleCleanupPlan
from .bottle_plan import SmolmachinesBottlePlan
# from .provision import workspace as _workspace
class SmolmachinesBottleBackend(
BottleBackend["SmolmachinesBottlePlan", "SmolmachinesBottleCleanupPlan"]
):
"""smolmachines backend. Selected by
`BOT_BOTTLE_BACKEND=smolmachines`."""
name = "smolmachines"
@classmethod
def is_available(cls) -> bool:
"""`smolvm` on PATH. The backend additionally needs macOS
for libkrun + TSI, but `enumerate_active` / `cleanup` are
host-shell ops that gracefully no-op on Linux too — the
runtime check happens at `prepare`."""
return _smolvm.is_available()
def _resolve_plan(
self,
spec: BottleSpec,
*,
slug: str,
resolved_env,
agent_provision_plan,
egress_plan,
git_gate_plan,
supervise_plan,
stage_dir: Path,
) -> SmolmachinesBottlePlan:
return _resolve_plan.resolve_plan(
spec,
slug=slug,
resolved_env=resolved_env,
agent_provision_plan=agent_provision_plan,
egress_plan=egress_plan,
supervise_plan=supervise_plan,
git_gate_plan=git_gate_plan,
stage_dir=stage_dir,
)
@contextmanager
def launch(
self, plan: SmolmachinesBottlePlan
) -> Generator[SmolmachinesBottle, None, None]:
with _launch.launch(plan, provision=self.provision) as bottle:
yield bottle
# def provision_workspace(
# self, plan: SmolmachinesBottlePlan, bottle: Bottle
# ) -> None:
# _workspace.provision_workspace(plan, bottle)
def supervise_mcp_url(self, plan: SmolmachinesBottlePlan) -> str:
"""The smolmachines guest reaches the supervise sidecar via a
host-published random port the launch step pinned earlier
(`http://<loopback_ip>:<random_port>/`). `agent_supervise_url`
on the plan is "" when the bottle has no sidecar."""
return plan.agent_supervise_url
def prepare_cleanup(self) -> SmolmachinesBottleCleanupPlan:
return _cleanup.prepare_cleanup()
def cleanup(self, plan: SmolmachinesBottleCleanupPlan) -> None:
_cleanup.cleanup(plan)
def enumerate_active(self) -> Sequence[ActiveAgent]:
return _enumerate.enumerate_active()