75 lines
2.9 KiB
Python
75 lines
2.9 KiB
Python
"""DockerBottleBackend — the Docker implementation of BottleBackend.
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This module is a thin façade. The real work lives in four siblings:
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- prepare.py — host-side resolution into a DockerBottlePlan
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- launch.py — bring-up + teardown context manager
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- cleanup.py — orphan enumeration + removal
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- enumerate.py — active-agent listing
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The base class's `prepare` template runs cross-backend host-side
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validation before calling `_resolve_plan` here.
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Per PRD 0050 the per-provider provisioning steps (prompt, skills,
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the declarative provision-plan apply, supervise MCP registration)
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live on the `AgentProvider` plugin under `bot_bottle/contrib/`. The
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Docker backend only owns the steps that are about backend
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infrastructure: CA install and git copy-in.
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"""
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from __future__ import annotations
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import shutil
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from contextlib import contextmanager
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from pathlib import Path
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from typing import Generator, Sequence
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from ...supervise import SUPERVISE_HOSTNAME, SUPERVISE_PORT
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from .. import ActiveAgent, BottleBackend, BottleSpec
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from . import cleanup as _cleanup
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from . import enumerate as _enumerate
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from . import launch as _launch
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from . import resolve_plan as _resolve_plan
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from .bottle import DockerBottle
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from .bottle_cleanup_plan import DockerBottleCleanupPlan
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from .bottle_plan import DockerBottlePlan
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class DockerBottleBackend(BottleBackend["DockerBottlePlan", "DockerBottleCleanupPlan"]):
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"""Docker backend implementation. Selected by BOT_BOTTLE_BACKEND
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(default)."""
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name = "docker"
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@classmethod
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def is_available(cls) -> bool:
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"""`docker` on PATH is sufficient; we don't probe `docker info`
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eagerly because the cross-backend enumerator runs this on
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every `list active` and we'd pay a subprocess per call. A
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broken daemon will surface its own error during prepare /
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launch."""
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return shutil.which("docker") is not None
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def _resolve_plan(self, spec: BottleSpec, *, stage_dir: Path) -> DockerBottlePlan:
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return _resolve_plan.resolve_plan(spec, stage_dir=stage_dir)
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@contextmanager
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def launch(self, plan: DockerBottlePlan) -> Generator[DockerBottle, None, None]:
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with _launch.launch(plan, provision=self.provision) as bottle:
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yield bottle
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def supervise_mcp_url(self, plan: DockerBottlePlan) -> str:
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"""Docker bottles reach the supervise sidecar via the
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compose-network alias `supervise:9100`. No per-bottle URL
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plumbing needed; the alias resolves inside the bridge."""
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if plan.supervise_plan is None:
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return ""
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return f"http://{SUPERVISE_HOSTNAME}:{SUPERVISE_PORT}/"
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def prepare_cleanup(self) -> DockerBottleCleanupPlan:
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return _cleanup.prepare_cleanup()
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def cleanup(self, plan: DockerBottleCleanupPlan) -> None:
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_cleanup.cleanup(plan)
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def enumerate_active(self) -> Sequence[ActiveAgent]:
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return _enumerate.enumerate_active()
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