Teknium
204 lines
8.4 KiB
Python
204 lines
8.4 KiB
Python
"""Daytona cloud execution environment.
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Runs commands in Daytona cloud sandboxes via the Python SDK. Persistent mode stops
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the sandbox on cleanup and resumes it next time, preserving the filesystem.
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"""
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import logging
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import math
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import os
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import shlex
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import threading
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from pathlib import Path
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from tools.environments.base import BaseEnvironment, _ThreadedProcessHandle
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from tools.environments.file_sync import (
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FileSyncManager, iter_sync_files, quoted_mkdir_command, quoted_rm_command, unique_parent_dirs,
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)
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from tools.environments.remote_common import ensure_lazy_dep
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logger = logging.getLogger(__name__)
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class DaytonaEnvironment(BaseEnvironment):
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"""Daytona cloud sandbox execution backend.
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Spawn-per-call via _ThreadedProcessHandle wrapping blocking SDK calls; cancel_fn
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is wired to sandbox.stop() for interrupts. Shell timeout wrapper kept (SDK timeout unreliable).
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"""
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_stdin_mode = "heredoc"
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def __init__(self, image: str, cwd: str = "/home/daytona", timeout: int = 60, cpu: int = 1,
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memory: int = 5120, disk: int = 10240, persistent_filesystem: bool = True,
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task_id: str = "default"):
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requested_cwd = cwd
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super().__init__(cwd=cwd, timeout=timeout)
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ensure_lazy_dep("terminal.daytona")
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from daytona import Daytona, CreateSandboxFromImageParams, DaytonaError, Resources, SandboxState
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self._persistent = persistent_filesystem
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self._task_id = task_id
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self._SandboxState = SandboxState
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self._daytona = Daytona()
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self._sandbox = None
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self._lock = threading.Lock()
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memory_gib = max(1, math.ceil(memory / 1024))
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disk_gib = max(1, math.ceil(disk / 1024))
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if disk_gib > 10:
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logger.warning("Daytona: requested disk (%dGB) exceeds platform limit (10GB). "
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"Capping to 10GB.", disk_gib)
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disk_gib = 10
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resources = Resources(cpu=cpu, memory=memory_gib, disk=disk_gib)
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labels = {"hermes_task_id": task_id}
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sandbox_name = f"hermes-{task_id}"
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if self._persistent:
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try:
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self._sandbox = self._daytona.get(sandbox_name)
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self._sandbox.start()
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logger.info("Daytona: resumed sandbox %s for task %s", self._sandbox.id, task_id)
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except DaytonaError:
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self._sandbox = None
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except Exception as e:
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logger.warning("Daytona: failed to resume sandbox for task %s: %s", task_id, e)
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self._sandbox = None
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if self._sandbox is None:
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try:
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# SDK list() is a cursor-paginated iterator (offset pagination is gone).
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legacy = next(iter(self._daytona.list(labels=labels, limit=1)), None)
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if legacy is not None:
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self._sandbox = legacy
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self._sandbox.start()
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logger.info("Daytona: resumed legacy sandbox %s for task %s", self._sandbox.id, task_id)
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except Exception as e:
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logger.debug("Daytona: no legacy sandbox found for task %s: %s", task_id, e)
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self._sandbox = None
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if self._sandbox is None:
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self._sandbox = self._daytona.create(CreateSandboxFromImageParams(
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image=image, name=sandbox_name, labels=labels, auto_stop_interval=0, resources=resources,
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))
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logger.info("Daytona: created sandbox %s for task %s", self._sandbox.id, task_id)
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self._remote_home = "/root"
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try:
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home = self._sandbox.process.exec("echo $HOME").result.strip()
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if home:
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self._remote_home = home
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if requested_cwd in {"~", "/home/daytona"}:
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self.cwd = home
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except Exception:
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pass
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logger.info("Daytona: resolved home to %s, cwd to %s", self._remote_home, self.cwd)
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self._sync_manager = FileSyncManager(
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get_files_fn=lambda: iter_sync_files(f"{self._remote_home}/.hermes"),
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upload_fn=self._daytona_upload,
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delete_fn=self._daytona_delete,
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bulk_upload_fn=self._daytona_bulk_upload,
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bulk_download_fn=self._daytona_bulk_download,
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)
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self._sync_manager.sync(force=True)
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self.init_session()
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def _daytona_upload(self, host_path: str, remote_path: str) -> None:
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"""Upload a single file via Daytona SDK."""
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parent = str(Path(remote_path).parent)
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self._sandbox.process.exec(quoted_mkdir_command([parent]))
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self._sandbox.fs.upload_file(host_path, remote_path)
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def _daytona_bulk_upload(self, files: list[tuple[str, str]]) -> None:
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"""Upload many files in one multipart POST via ``sandbox.fs.upload_files()``."""
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from daytona.common.filesystem import FileUpload
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if not files:
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return
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parents = unique_parent_dirs(files)
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if parents:
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self._sandbox.process.exec(quoted_mkdir_command(parents))
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self._sandbox.fs.upload_files(
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[FileUpload(source=host_path, destination=remote_path) for host_path, remote_path in files]
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)
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def _daytona_bulk_download(self, dest: Path) -> None:
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"""Download remote .hermes/ as a tar archive."""
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rel_base = f"{self._remote_home}/.hermes".lstrip("/")
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# PID-suffixed remote temp path avoids collisions if sync_back runs concurrently.
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remote_tar = f"/tmp/.hermes_sync.{os.getpid()}.tar"
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self._sandbox.process.exec(f"tar cf {shlex.quote(remote_tar)} -C / {shlex.quote(rel_base)}")
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self._sandbox.fs.download_file(remote_tar, str(dest))
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try:
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self._sandbox.process.exec(f"rm -f {shlex.quote(remote_tar)}")
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except Exception:
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pass # best-effort cleanup
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def _daytona_delete(self, remote_paths: list[str]) -> None:
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"""Batch-delete remote files via SDK exec."""
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self._sandbox.process.exec(quoted_rm_command(remote_paths))
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# -- Sandbox lifecycle ----------------------------------------------
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def _ensure_sandbox_ready(self) -> None:
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"""Restart sandbox if it was stopped (e.g., by a previous interrupt)."""
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self._sandbox.refresh_data()
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if self._sandbox.state in {self._SandboxState.STOPPED, self._SandboxState.ARCHIVED}:
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self._sandbox.start()
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logger.info("Daytona: restarted sandbox %s", self._sandbox.id)
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def _before_execute(self) -> None:
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"""Ensure sandbox is ready, then sync files via FileSyncManager."""
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with self._lock:
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self._ensure_sandbox_ready()
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self._sync_manager.sync()
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def _run_bash(self, cmd_string: str, *, login: bool = False, timeout: int = 120,
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stdin_data: str | None = None):
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"""Return a _ThreadedProcessHandle wrapping a blocking Daytona SDK call."""
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sandbox = self._sandbox
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lock = self._lock
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def cancel():
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with lock:
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try:
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sandbox.stop()
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except Exception:
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pass
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shell_cmd = f"bash {'-l ' if login else ''}-c {shlex.quote(cmd_string)}"
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def exec_fn() -> tuple[str, int]:
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response = sandbox.process.exec(shell_cmd, timeout=timeout)
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return (response.result or "", response.exit_code)
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return _ThreadedProcessHandle(exec_fn, cancel_fn=cancel)
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def cleanup(self):
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with self._lock:
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if self._sandbox is None:
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return
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# sync_back runs inside the lock and after the None guard so an
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# already-cleaned-up env can't trigger a 3-attempt retry storm on a nil sandbox.
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if self._sync_manager:
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logger.info("Daytona: syncing files from sandbox...")
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try:
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self._sync_manager.sync_back()
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except Exception as e:
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logger.warning("Daytona: sync_back failed: %s", e)
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try:
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if self._persistent:
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self._sandbox.stop()
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logger.info("Daytona: stopped sandbox %s (filesystem preserved)", self._sandbox.id)
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else:
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self._daytona.delete(self._sandbox)
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logger.info("Daytona: deleted sandbox %s", self._sandbox.id)
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except Exception as e:
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logger.warning("Daytona: cleanup failed: %s", e)
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self._sandbox = None
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