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Additive sandbox provider adapted to this fork's synchronous create_sandbox factory: agent/integrations/e2b.py registered as a lazy-import entry in SANDBOX_FACTORIES, so the e2b/langchain-e2b imports only load when SANDBOX_TYPE=e2b (dark-safe on unset env; unset E2B_API_KEY raises a clean ValueError only when the provider is selected). Supports reconnect-by-id and optional E2B_TEMPLATE. Non-langsmith providers skip the GitHub proxy step, so the GitHub-App token flow is untouched. Upstream: langchain-ai/open-swe 48217b68 (#1489), re-implemented against the fork's sync sandbox lifecycle rather than cherry-picked (upstream ships on the deferred async sandbox.py base). Docs: provider tables/lists in README, CUSTOMIZATION, INSTALLATION; the CUSTOMIZATION registration example now shows the lazy-tuple form the code actually uses. uv.lock refreshed (adds e2b, langchain-e2b, dockerfile-parse).
67 lines
2.6 KiB
Python
67 lines
2.6 KiB
Python
import os
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from collections.abc import Callable
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from importlib import import_module
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from typing import Any
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SandboxFactory = Callable[..., Any]
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SANDBOX_FACTORIES: dict[str, tuple[str, str]] = {
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"langsmith": ("agent.integrations.langsmith", "create_langsmith_sandbox"),
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"daytona": ("agent.integrations.daytona", "create_daytona_sandbox"),
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"modal": ("agent.integrations.modal", "create_modal_sandbox"),
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"runloop": ("agent.integrations.runloop", "create_runloop_sandbox"),
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"e2b": ("agent.integrations.e2b", "create_e2b_sandbox"),
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"local": ("agent.integrations.local", "create_local_sandbox"),
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}
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def _load_sandbox_factory(sandbox_type: str) -> SandboxFactory:
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factory_path = SANDBOX_FACTORIES.get(sandbox_type)
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if factory_path is None:
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supported = ", ".join(sorted(SANDBOX_FACTORIES))
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raise ValueError(f"Invalid sandbox type: {sandbox_type}. Supported types: {supported}")
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module_name, function_name = factory_path
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factory = getattr(import_module(module_name), function_name)
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if not callable(factory):
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raise TypeError(f"Sandbox factory {module_name}.{function_name} is not callable")
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return factory
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def create_sandbox(
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sandbox_id: str | None = None,
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*,
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snapshot_id: str | None = None,
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) -> Any:
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"""Create or reconnect to a sandbox using the configured provider.
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The provider is selected via the SANDBOX_TYPE environment variable.
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Supported values: langsmith (default), daytona, modal, runloop, e2b, local.
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Args:
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sandbox_id: Optional existing sandbox ID to reconnect to.
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snapshot_id: Optional snapshot to boot a new sandbox from. Only the
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langsmith provider honors this; others ignore it. When omitted the
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langsmith provider falls back to DEFAULT_SANDBOX_SNAPSHOT_ID.
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Returns:
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A sandbox backend implementing SandboxBackendProtocol.
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"""
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sandbox_type = os.getenv("SANDBOX_TYPE", "langsmith")
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factory = _load_sandbox_factory(sandbox_type)
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if sandbox_type == "langsmith" and snapshot_id is not None:
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return factory(sandbox_id, snapshot_id=snapshot_id)
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return factory(sandbox_id)
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def validate_sandbox_startup_config() -> None:
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"""Validate the configured sandbox provider's env vars at server startup.
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Raises ValueError if the active provider's configuration is invalid.
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Called from the FastAPI lifespan hook so errors surface at boot rather
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than on the first sandbox creation.
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"""
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sandbox_type = os.getenv("SANDBOX_TYPE", "langsmith")
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if sandbox_type == "langsmith":
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from agent.integrations.langsmith import LangSmithProvider
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LangSmithProvider.validate_startup_config()
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