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bot-bottle/bot_bottle/backend/docker/backend.py
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didericis-claude 31236b95a1
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refactor(types): move loaded manifest from BottleSpec to BottlePlan
BottleSpec.manifest was ManifestIndex | Manifest — a union encoding
two lifecycle stages in one field. The union was unjustifiable:
it forced a type-narrowing workaround (loaded_manifest property)
on every consumer.

Clean split:
- BottleSpec.manifest: ManifestIndex (always; CLI-supplied intent)
- BottlePlan.manifest: Manifest (always; loaded by _validate())

_validate() returns the loaded Manifest directly. prepare() passes
it to _resolve_plan(), which stores it on the plan. All provisioner
code now reads plan.manifest.agent / plan.manifest.bottle — no
union, no asserts, no type: ignore.
2026-06-22 23:05:34 -04:00

109 lines
3.9 KiB
Python

"""DockerBottleBackend — the Docker implementation of BottleBackend.
This module is a thin façade. The real work lives in four siblings:
- resolve_plan.py — Docker-specific resolution into a DockerBottlePlan
- launch.py — bring-up + teardown context manager
- cleanup.py — orphan enumeration + removal
- enumerate.py — active-agent listing
The base class's `prepare` template runs cross-backend host-side
validation before calling `_resolve_plan` here.
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
Docker backend only owns the steps that are about backend
infrastructure: CA install and git copy-in.
"""
from __future__ import annotations
import shutil
from contextlib import contextmanager
from pathlib import Path
from typing import Generator, Sequence
from ...supervise import SUPERVISE_HOSTNAME, SUPERVISE_PORT
from ...agent_provider import AgentProvisionPlan
from ...egress import EgressPlan
from ...env import ResolvedEnv
from ...git_gate import GitGatePlan
from ...supervise import SupervisePlan
from ...manifest import Manifest
from .. import ActiveAgent, 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 .bottle import DockerBottle
from .bottle_cleanup_plan import DockerBottleCleanupPlan
from .bottle_plan import DockerBottlePlan
class DockerBottleBackend(BottleBackend["DockerBottlePlan", "DockerBottleCleanupPlan"]):
"""Docker backend implementation. Selected by BOT_BOTTLE_BACKEND
when set to `docker`; retained as a legacy/example backend."""
name = "docker"
@classmethod
def is_available(cls) -> bool:
"""`docker` on PATH is sufficient; we don't probe `docker info`
eagerly because the cross-backend enumerator runs this on
every `list active` and we'd pay a subprocess per call. A
broken daemon will surface its own error during prepare /
launch."""
return shutil.which("docker") is not None
def _preflight(self) -> None:
_resolve_plan.preflight()
def _build_guest_env(self, resolved_env: ResolvedEnv) -> dict[str, str]:
return _resolve_plan.build_guest_env(resolved_env)
def _resolve_plan(
self,
spec: BottleSpec,
*,
manifest: Manifest,
slug: str,
resolved_env: ResolvedEnv,
agent_provision_plan: AgentProvisionPlan,
egress_plan: EgressPlan,
git_gate_plan: GitGatePlan,
supervise_plan: SupervisePlan | None,
stage_dir: Path,
) -> DockerBottlePlan:
return _resolve_plan.resolve_plan(
spec,
manifest=manifest,
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: DockerBottlePlan) -> Generator[DockerBottle, None, None]:
with _launch.launch(plan, provision=self.provision) as bottle:
yield bottle
def supervise_mcp_url(self, plan: DockerBottlePlan) -> str:
"""Docker bottles reach the supervise sidecar via the
compose-network alias `supervise:9100`. No per-bottle URL
plumbing needed; the alias resolves inside the bridge."""
if plan.supervise_plan is None:
return ""
return f"http://{SUPERVISE_HOSTNAME}:{SUPERVISE_PORT}/"
def prepare_cleanup(self) -> DockerBottleCleanupPlan:
return _cleanup.prepare_cleanup()
def cleanup(self, plan: DockerBottleCleanupPlan) -> None:
_cleanup.cleanup(plan)
def enumerate_active(self) -> Sequence[ActiveAgent]:
return _enumerate.enumerate_active()