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99 lines
3.3 KiB
Python
99 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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"""给看门狗加"最小重启间隔",防止链路成片抖动时反复重启。
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观察到的现象:
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链路差的时候,看门狗每隔 ~40 秒就重启一次隧道。
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而每次重启之后 cloudflared 要重新建连接、约 30~90 秒才稳。
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频繁重启反而让它永远处在"正在重连"的状态,得不偿失。
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调整:
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THRESHOLD 2 -> 3 连续 3 次(约 60 秒)才认定真出问题。
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短抖动(<1 分钟)交给 cloudflared 自己重连。
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MIN_RESTART_GAP = 120 两次重启之间至少隔 2 分钟,
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免得抖起来没完没了地重启。
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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WATCHDOG = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote\relay"
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r"\watchdog.sh")
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OLD = '''THRESHOLD=2 # 连续几次就重启
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STALE_MINUTES=10 # 日志多久没动静算卡死'''
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NEW = '''# 连续几次公网不通才重启。
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# 设 3(约 60 秒)而不是 2:短抖动让 cloudflared 自己重连就好,
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# 频繁重启反而让它一直停在"正在重连"的状态。
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THRESHOLD=3
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STALE_MINUTES=10 # 日志多久没动静算卡死
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# 两次重启之间至少隔这么久(秒)。
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# 链路成片抖动时,这个能防止"重启 -> 刚好 -> 又抖 -> 再重启"的死循环。
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MIN_RESTART_GAP=120'''
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RESTART_OLD = '''restart_tunnel() {
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local why="$1"
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log "$why —— 重启隧道"
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systemctl restart lanremote-tunnel
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write_state 0 0
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sleep 25
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log "重启后地址: $(cat "$URL_FILE" 2>/dev/null || echo '(还没拿到)')"
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exit 0
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}'''
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RESTART_NEW = '''LAST_RESTART_FILE="$RELAY_DIR/watchdog.last_restart"
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restart_tunnel() {
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local why="$1"
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local now last gap
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now=$(date +%s)
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last=0
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[ -f "$LAST_RESTART_FILE" ] && last=$(cat "$LAST_RESTART_FILE" 2>/dev/null || echo 0)
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gap=$((now - last))
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if [ "$gap" -lt "$MIN_RESTART_GAP" ]; then
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# 刚重启过还没到间隔:这次先不重启,
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# 让 cloudflared 自己把连接建起来(它本来就在重试)。
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log "$why —— 但距上次重启才 ${gap} 秒(下限 ${MIN_RESTART_GAP} 秒),先不重启"
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write_state 0 0
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exit 0
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fi
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log "$why —— 重启隧道(距上次 ${gap} 秒)"
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echo "$now" > "$LAST_RESTART_FILE"
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systemctl restart lanremote-tunnel
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write_state 0 0
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sleep 25
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log "重启后地址: $(cat "$URL_FILE" 2>/dev/null || echo '(还没拿到)')"
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exit 0
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}'''
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def main() -> int:
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text = WATCHDOG.read_text(encoding="utf-8")
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ok = True
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if "MIN_RESTART_GAP" in text:
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print(" 已经加过重启间隔")
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else:
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for old, new, tag in ((OLD, NEW, "阈值和间隔常量"),
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(RESTART_OLD, RESTART_NEW, "重启函数加间隔判断")):
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if old in text:
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text = text.replace(old, new, 1)
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print(f" {tag}")
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else:
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print(f" [失败] {tag} —— 锚点没找到")
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ok = False
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WATCHDOG.write_text(text, encoding="utf-8", newline="\n")
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raw = WATCHDOG.read_bytes()
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if b"\r\n" in raw:
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WATCHDOG.write_bytes(raw.replace(b"\r\n", b"\n"))
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print(" 顺手修了 CRLF")
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return 0 if ok else 1
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if __name__ == "__main__":
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sys.exit(main())
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