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from __future__ import annotations
import time
import subprocess
from dataclasses import dataclass
from pathlib import Path
from typing import Any
from open_range.protocols import ContainerSet
@dataclass(frozen=True, slots=True)
class BootedSnapshotProject:
"""Booted compose project metadata for a rendered child snapshot."""
project_name: str
compose_file: Path
artifacts_dir: Path
containers: ContainerSet
class ComposeProjectRunner:
"""Boot and tear down rendered snapshot bundles via ``docker compose``."""
def __init__(
self,
*,
build_timeout_s: float = 300.0,
up_timeout_s: float = 300.0,
down_timeout_s: float = 120.0,
health_timeout_s: float = 120.0,
health_poll_interval_s: float = 2.0,
remove_volumes: bool = True,
) -> None:
self.build_timeout_s = build_timeout_s
self.up_timeout_s = up_timeout_s
self.down_timeout_s = down_timeout_s
self.health_timeout_s = health_timeout_s
self.health_poll_interval_s = health_poll_interval_s
self.remove_volumes = remove_volumes
def boot(
self,
*,
snapshot_id: str,
artifacts_dir: Path,
compose: dict[str, Any],
project_name: str | None = None,
) -> BootedSnapshotProject:
compose_file = artifacts_dir / "docker-compose.yml"
project_name = project_name or self.project_name_for(snapshot_id)
self._run(
[
"docker",
"compose",
"-p",
project_name,
"-f",
str(compose_file),
"build",
],
cwd=artifacts_dir,
timeout=self.build_timeout_s,
)
self._run(
[
"docker",
"compose",
"-p",
project_name,
"-f",
str(compose_file),
"up",
"-d",
],
cwd=artifacts_dir,
timeout=self.up_timeout_s,
)
services = list((compose or {}).get("services", {}).keys())
container_ids: dict[str, str] = {}
for service in services:
result = self._run(
[
"docker",
"compose",
"-p",
project_name,
"-f",
str(compose_file),
"ps",
"-q",
service,
],
cwd=artifacts_dir,
timeout=30.0,
)
container_id = result.stdout.strip()
if container_id:
container_ids[service] = container_id
project = BootedSnapshotProject(
project_name=project_name,
compose_file=compose_file,
artifacts_dir=artifacts_dir,
containers=ContainerSet(
project_name=project_name,
container_ids=container_ids,
),
)
self._wait_until_healthy(project, services)
return project
def teardown(self, project: BootedSnapshotProject) -> None:
args = [
"docker",
"compose",
"-p",
project.project_name,
"-f",
str(project.compose_file),
"down",
]
if self.remove_volumes:
args.append("-v")
self._run(
args,
cwd=project.artifacts_dir,
timeout=self.down_timeout_s,
)
@staticmethod
def project_name_for(snapshot_id: str) -> str:
safe = "".join(ch.lower() if ch.isalnum() else "-" for ch in snapshot_id).strip("-")
return f"openrange-{safe}"[:63]
def _wait_until_healthy(
self,
project: BootedSnapshotProject,
services: list[str],
) -> None:
deadline = time.monotonic() + self.health_timeout_s
pending = list(services)
while pending and time.monotonic() < deadline:
still_pending: list[str] = []
for service in pending:
try:
healthy = _run_async(project.containers.is_healthy(service))
except Exception:
healthy = False
if not healthy:
still_pending.append(service)
if not still_pending:
return
pending = still_pending
time.sleep(self.health_poll_interval_s)
if pending:
raise RuntimeError(
"Timed out waiting for healthy services: "
+ ", ".join(pending)
)
@staticmethod
def _run(
args: list[str],
*,
cwd: Path,
timeout: float,
) -> subprocess.CompletedProcess[str]:
result = subprocess.run(
args,
cwd=cwd,
check=False,
capture_output=True,
text=True,
timeout=timeout,
)
if result.returncode != 0:
stderr = result.stderr.strip()
stdout = result.stdout.strip()
detail = stderr or stdout or "unknown docker compose failure"
raise RuntimeError(
f"{' '.join(args)} failed with exit code {result.returncode}: {detail}"
)
return result
def _run_async(coro):
import asyncio
return asyncio.run(coro)
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