entrypoint.py

#!/usr/bin/env python3
"""
entrypoint.py — daemon loop for containerised deployments.

Runs collect + alerts on a fixed interval (default 30 min).
Logs go to stdout so `docker logs` / `docker compose logs` works as expected.
"""
import os
import subprocess
import sys
import time

INTERVAL = int(os.environ.get("RUN_INTERVAL_SECONDS", "1800"))
CONFIG = os.environ.get("CONFIG", "config.yaml")
PYTHON = sys.executable


def run(mode: str, extra: list[str] | None = None) -> int:
    cmd = [PYTHON, "watch.py", "--config", CONFIG, "--mode", mode] + (extra or [])
    result = subprocess.run(cmd)
    return result.returncode


def main() -> None:
    print(
        f"[entrypoint] topic-watch starting — config={CONFIG} interval={INTERVAL}s",
        flush=True,
    )
    while True:
        print("[entrypoint] running collect …", flush=True)
        run("collect")

        print("[entrypoint] running alerts …", flush=True)
        run("alerts", ["--send-telegram"])

        print(f"[entrypoint] sleeping {INTERVAL}s …", flush=True)
        time.sleep(INTERVAL)


if __name__ == "__main__":
    main()