run_space.py

"""Container entry point: boot the agent, then serve the Streamlit app.

Equivalent to `streamlit run app.py ...` (the Streamlit CLI runs its Tornado
server in this same process), except that the agent's boot (schema check,
stale-run sweep, scheduler, keep-alive) starts immediately on a background
thread instead of waiting for the first page view. The Streamlit page's own
boot() is then a no-op, because agent.autostart.boot_once is per-process.
"""
from __future__ import annotations

import logging
import os
import sys

logging.basicConfig(level=logging.INFO,
                    format="%(asctime)s %(levelname)s %(name)s %(message)s")
log = logging.getLogger("run_space")


def main() -> int:
    from agent import autostart
    autostart.start_in_background()
    log.info("agent boot started in background; serving Streamlit")

    from streamlit.web import cli as stcli
    port = os.environ.get("PORT", "7860")
    sys.argv = [
        "streamlit", "run", "app.py",
        f"--server.port={port}",
        "--server.address=0.0.0.0",
        "--server.headless=true",
        "--server.fileWatcherType=none",
    ]
    return stcli.main()  # runs the server in-process; returns on shutdown


if __name__ == "__main__":
    sys.exit(main())