Files
sand-boxer/src/sandboxer/extensions/base.py
tegwick 952cebf2e9 feat: snapshot/restore checkpoints (SAND-WP-0007)
Add workspace checkpoint API with SnapshotStore, extension hooks on
compose-ssh and saas-stub, manager orchestration, CLI/HTTP surface,
profile.compose-checkpoint, and docs/tests.
2026-06-24 07:57:40 +02:00

66 lines
2.2 KiB
Python

"""Extension author SDK — base contract for sandbox backends."""
from __future__ import annotations
import uuid
from abc import ABC, abstractmethod
from typing import Any
from sandboxer.models import MeterQuote, Profile
class SandboxExtension(ABC):
"""Base class for self-hosted and SaaS sandbox extensions."""
def __init__(self, config: dict[str, Any] | None = None) -> None:
self.config: dict[str, Any] = config or {}
@staticmethod
def new_sandbox_id(inputs: dict[str, str]) -> str:
return inputs.get("sandbox_id") or str(uuid.uuid4())[:8]
@abstractmethod
def provision(
self, profile: Profile, inputs: dict[str, str], host: str
) -> dict[str, str]:
"""Create or attach sandbox resources. Returns a handle dict for later ops."""
@abstractmethod
def wait_ready(self, handle: dict[str, str]) -> dict[str, str]:
"""Confirm reachability. Returns reachability descriptor fields."""
@abstractmethod
def teardown(self, handle: dict[str, str]) -> dict[str, str]:
"""Release sandbox resources. Returns cleanup report fields."""
def estimate_cost(
self,
profile: Profile,
inputs: dict[str, str],
*,
duration_s: int = 3600,
) -> MeterQuote | None:
"""Optional pre-create cost quote (metered SaaS extensions)."""
return None
def meter_actual(self, handle: dict[str, str], *, duration_s: float) -> float | None:
"""Optional post-destroy actual cost in USD."""
return None
def supports_snapshots(self) -> bool:
"""Whether this extension implements checkpoint snapshot/restore."""
return False
def snapshot(self, handle: dict[str, str]) -> dict[str, str]:
"""Capture workspace checkpoint. Returns snapshot metadata including snapshot_id."""
raise NotImplementedError(f"{type(self).__name__} does not support snapshots")
def restore_from_snapshot(
self,
profile: Profile,
snapshot_meta: dict[str, str],
inputs: dict[str, str],
host: str,
) -> dict[str, str]:
"""Provision a new sandbox from a prior checkpoint."""
raise NotImplementedError(f"{type(self).__name__} does not support restore")