# 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" @app.get("/ui", response_class=HTMLResponse, include_in_schema=False) async def ui(): if _UI_PATH.exists(): return _UI_PATH.read_text() return "

UI not found — use /docs for API access.

" @app.get("/", response_class=RedirectResponse, include_in_schema=False) async def root(): return RedirectResponse(url="/ui") @app.get("/web", response_class=RedirectResponse, include_in_schema=False) 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)