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bot-bottle/claude_bottle/backend/docker/backend.py
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didericis-claude 3b418580a9
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refactor(backend): has_backend() helper + docker/enumerate split + ActiveAgent rename
Addresses PR #78 review feedback:

- New `has_backend(name)` on the backend package + abstract
  `BottleBackend.is_available()` on each concrete subclass.
  Replaces inline `shutil.which("docker") is None` checks in
  docker/cleanup.py:178 and smolmachines/enumerate.py:73.
  Docker → `shutil.which("docker") is not None`; smolmachines
  → `smolvm.is_available()`. Cross-backend `enumerate_active_
  agents()` skips backends whose `is_available()` is False so a
  docker-only host doesn't fail when iterating past
  smolmachines (and vice versa).
- Move docker `enumerate_active` + parser helpers out of
  cleanup.py into a new `backend/docker/enumerate.py`, mirroring
  the smolmachines/enumerate.py layout. cleanup.py is now
  purely about prepare_cleanup / cleanup; the active-listing
  concern owns its own file.
- Drop the `ActiveAgent = ActiveBottle` alias in dashboard.py.
  The canonical name is `ActiveAgent` (the thing running inside
  a bottle is always called "agent" in this codebase; the bottle
  is the container). Renamed `enumerate_active_bottles` →
  `enumerate_active_agents` to match.

Tests:
- `test_backend_selection.TestEnumerateActiveAgents
  .test_skips_unavailable_backends` locks down the
  `is_available()`-gated iteration.
- New `TestHasBackend` covers `has_backend("docker")` consulting
  the backend's `is_available`, and unknown-name → False.
- Existing tests follow the rename; the docker-availability-
  side-effect test in `test_docker_enumerate_active` moves up
  to the cross-backend layer (where the gate lives now).

607 unit tests pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-27 19:03:16 -04:00

82 lines
3.0 KiB
Python

"""DockerBottleBackend — the Docker implementation of BottleBackend.
This module is a thin façade. The real work lives in four siblings:
- prepare.py — host-side 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.
"""
from __future__ import annotations
import shutil
from contextlib import contextmanager
from pathlib import Path
from typing import Generator, Sequence
from .. import ActiveAgent, BottleBackend, BottleSpec
from . import cleanup as _cleanup
from . import enumerate as _enumerate
from . import launch as _launch
from . import prepare as _prepare
from .bottle import DockerBottle
from .bottle_cleanup_plan import DockerBottleCleanupPlan
from .bottle_plan import DockerBottlePlan
from .provision import ca as _ca
from .provision import git as _git
from .provision import prompt as _prompt
from .provision import skills as _skills
from .provision import supervise as _supervise_prov
class DockerBottleBackend(BottleBackend["DockerBottlePlan", "DockerBottleCleanupPlan"]):
"""Docker backend implementation. Selected by CLAUDE_BOTTLE_BACKEND
(default)."""
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 _resolve_plan(self, spec: BottleSpec, *, stage_dir: Path) -> DockerBottlePlan:
return _prepare.resolve_plan(spec, 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 provision_ca(self, plan: DockerBottlePlan, target: str) -> None:
_ca.provision_ca(plan, target)
def provision_prompt(self, plan: DockerBottlePlan, target: str) -> str | None:
return _prompt.provision_prompt(plan, target)
def provision_skills(self, plan: DockerBottlePlan, target: str) -> None:
_skills.provision_skills(plan, target)
def provision_git(self, plan: DockerBottlePlan, target: str) -> None:
_git.provision_git(plan, target)
def provision_supervise(self, plan: DockerBottlePlan, target: str) -> None:
_supervise_prov.provision_supervise(plan, target)
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()