108 lines
3.2 KiB
Python
108 lines
3.2 KiB
Python
from dataclasses import dataclass
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from datetime import timedelta
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from uuid import uuid4
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from domain.sandbox import SandboxSession
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from usecase.interface import Clock, Logger, SandboxRuntime, SandboxSessionRepository
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@dataclass(frozen=True, slots=True)
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class CreateSandboxCommand:
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chat_id: str
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class CreateSandbox:
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def __init__(
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self,
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repository: SandboxSessionRepository,
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runtime: SandboxRuntime,
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clock: Clock,
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logger: Logger,
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ttl: timedelta,
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) -> None:
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self._repository = repository
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self._runtime = runtime
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self._clock = clock
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self._logger = logger
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self._ttl = ttl
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def execute(self, command: CreateSandboxCommand) -> SandboxSession:
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now = self._clock.now()
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session = self._repository.get_active_by_chat_id(command.chat_id)
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if session is not None and session.expires_at > now:
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self._logger.info(
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'sandbox_reused',
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attrs={
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'chat_id': command.chat_id,
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'session_id': session.session_id,
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'container_id': session.container_id,
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},
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)
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return session
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if session is not None:
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self._logger.info(
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'sandbox_replaced',
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attrs={
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'chat_id': command.chat_id,
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'session_id': session.session_id,
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'container_id': session.container_id,
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},
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)
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self._runtime.stop(session.container_id)
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self._repository.delete(session.session_id)
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new_session = self._runtime.create(
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session_id=_new_session_id(),
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chat_id=command.chat_id,
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expires_at=now + self._ttl,
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)
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self._repository.save(new_session)
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self._logger.info(
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'sandbox_created',
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attrs={
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'chat_id': command.chat_id,
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'session_id': new_session.session_id,
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'container_id': new_session.container_id,
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},
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)
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return new_session
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class CleanupExpiredSandboxes:
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def __init__(
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self,
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repository: SandboxSessionRepository,
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runtime: SandboxRuntime,
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clock: Clock,
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logger: Logger,
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) -> None:
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self._repository = repository
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self._runtime = runtime
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self._clock = clock
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self._logger = logger
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def execute(self) -> list[SandboxSession]:
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now = self._clock.now()
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expired_sessions = self._repository.list_expired(now)
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cleaned_sessions: list[SandboxSession] = []
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for session in expired_sessions:
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self._runtime.stop(session.container_id)
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self._repository.delete(session.session_id)
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cleaned_sessions.append(session)
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self._logger.info(
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'sandbox_cleaned',
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attrs={
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'chat_id': session.chat_id,
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'session_id': session.session_id,
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'container_id': session.container_id,
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},
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)
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return cleaned_sessions
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def _new_session_id() -> str:
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return uuid4().hex
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