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| # Copyright (c) Meta Platforms, Inc. and affiliates. | |
| # All rights reserved. | |
| # | |
| # This source code is licensed under the BSD-style license found in the | |
| # LICENSE file in the root directory of this source tree. | |
| """ | |
| FastAPI application for the Job Scheduler Env Environment. | |
| This module creates an HTTP server that exposes the JobSchedulerEnvEnvironment | |
| over HTTP and WebSocket endpoints, compatible with EnvClient. | |
| Endpoints: | |
| - POST /reset: Reset the environment | |
| - POST /step: Execute an action | |
| - GET /state: Get current environment state | |
| - GET /schema: Get action/observation schemas | |
| - WS /ws: WebSocket endpoint for persistent sessions | |
| Usage: | |
| # Development (with auto-reload): | |
| uvicorn server.app:app --reload --host 0.0.0.0 --port 8000 | |
| # Production: | |
| uvicorn server.app:app --host 0.0.0.0 --port 8000 --workers 4 | |
| # Or run directly: | |
| python -m server.app | |
| """ | |
| from pathlib import Path | |
| from fastapi.responses import HTMLResponse, RedirectResponse | |
| try: | |
| from openenv.core.env_server.http_server import create_app | |
| except Exception as e: # pragma: no cover | |
| raise ImportError( | |
| "openenv is required for the web interface. Install dependencies with '\n uv sync\n'" | |
| ) from e | |
| try: | |
| from models import JobSchedulerEnvAction, JobSchedulerEnvObservation | |
| from .Job_Scheduler_Env_environment import JobSchedulerEnvEnvironment | |
| except ModuleNotFoundError: | |
| from models import JobSchedulerEnvAction, JobSchedulerEnvObservation | |
| from server.Job_Scheduler_Env_environment import JobSchedulerEnvEnvironment | |
| app = create_app( | |
| JobSchedulerEnvEnvironment, | |
| JobSchedulerEnvAction, | |
| JobSchedulerEnvObservation, | |
| env_name="Job_Scheduler_Env", | |
| max_concurrent_envs=1, | |
| ) | |
| _UI_PATH = Path(__file__).parent / "static" / "index.html" | |
| async def ui(): | |
| if _UI_PATH.exists(): | |
| return _UI_PATH.read_text() | |
| return "<html><body><h2>UI not found — use <a href='/docs'>/docs</a> for API access.</h2></body></html>" | |
| async def root(): | |
| return RedirectResponse(url="/ui") | |
| async def web(): | |
| return RedirectResponse(url="/ui") | |
| def main(host: str = "0.0.0.0", port: int = 8000): | |
| """ | |
| Entry point for direct execution via uv run or python -m. | |
| This function enables running the server without Docker: | |
| uv run --project . server | |
| uv run --project . server --port 8001 | |
| python -m Job_Scheduler_Env.server.app | |
| Args: | |
| host: Host address to bind to (default: "0.0.0.0") | |
| port: Port number to listen on (default: 8000) | |
| For production deployments, consider using uvicorn directly with | |
| multiple workers: | |
| uvicorn Job_Scheduler_Env.server.app:app --workers 4 | |
| """ | |
| import uvicorn | |
| uvicorn.run(app, host=host, port=port) | |
| if __name__ == "__main__": | |
| import argparse | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument("--port", type=int, default=8000) | |
| args = parser.parse_args() | |
| main(port=args.port) | |