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xmz7891
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89 lines
2.9 KiB
Bash
89 lines
2.9 KiB
Bash
#!/bin/bash
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# 精确测看门狗的重启路径。
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#
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# 做法：把地址文件临时改成一个**肯定不通**的地址，
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# 连跑 3 次看门狗，看它会不会重启隧道、重启后能不能拿到新地址。
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# 测完把状态恢复。
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set -u
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RELAY_DIR=/root/lanremote-relay
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URL_FILE="$RELAY_DIR/public_url.txt"
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STATE="$RELAY_DIR/watchdog.state"
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REAL_URL=$(cat "$URL_FILE" 2>/dev/null || echo "")
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echo "===== 1. 真实地址 ====="
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echo " ${REAL_URL:-（无）}"
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echo
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echo "===== 2. 临时换成肯定不通的地址 ====="
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echo "https://this-host-does-not-exist-lanremote.invalid" > "$URL_FILE"
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echo 0 > "$STATE"
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cat "$URL_FILE" | sed 's/^/ /'
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echo
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echo "===== 3. 连跑 3 次看门狗（第 3 次应该触发重启）====="
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BEFORE=$(systemctl show lanremote-tunnel -p NRestarts | cut -d= -f2)
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BEFORE_URL=$(cat "$URL_FILE" 2>/dev/null || echo "")
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echo " 重启前 NRestarts = $BEFORE"
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echo
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for i in 1 2 3; do
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echo " --- 第 $i 次 ---"
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systemctl start lanremote-watchdog.service
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sleep 8
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tail -1 "$RELAY_DIR/watchdog.log" 2>/dev/null | sed 's/^/ /'
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done
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echo
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echo "===== 4. 等重启完成并拿到新地址 ====="
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sleep 50
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AFTER=$(systemctl show lanremote-tunnel -p NRestarts | cut -d= -f2)
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echo " 重启后 NRestarts = $AFTER (之前 $BEFORE)"
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NEW_URL=$(cat "$URL_FILE" 2>/dev/null || echo "")
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echo " 新地址: ${NEW_URL:-（还没拿到）}"
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echo
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echo "===== 5. 判定 ====="
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# 注意：NRestarts 只统计 Restart=always 的**自动**重启，
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# 不含 systemctl restart 的手动重启。所以不能拿它判断。
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# 该看的是：日志里有没有「连续 3 次不通」，以及地址有没有变。
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if grep -q "连续 3 次不通" "$RELAY_DIR/watchdog.log" 2>/dev/null; then
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echo " ✓ 看门狗日志里有「连续 3 次不通 -> 重启隧道」"
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else
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echo " ✗ 日志里没看到触发重启"
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fi
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if [ -n "$NEW_URL" ] && [ "$NEW_URL" != "$BEFORE_URL" ]; then
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echo " ✓ 地址确实变了（说明隧道被重启并重新申请了地址）"
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else
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echo " ~ 地址没变"
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fi
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if [ -n "$NEW_URL" ] && [ "$NEW_URL" != "https://this-host-does-not-exist-lanremote.invalid" ]; then
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echo " ✓ 地址文件被 tunnel-run.sh 更新成了新地址"
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else
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echo " ⚠ 地址文件还是旧值"
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fi
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echo
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echo "===== 6. 新地址通不通 ====="
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if [ -n "$NEW_URL" ]; then
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OK=0
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for i in 1 2 3 4 5; do
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C=$(timeout 20 curl -4 -s -o /dev/null -w '%{http_code}' \
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"$NEW_URL/v1/health" 2>/dev/null)
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printf " 第 %d 次: HTTP %s\n" "$i" "${C:-超时}"
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[ "$C" = "200" ] && { OK=1; break; }
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sleep 8
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done
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echo
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if [ "$OK" = "1" ]; then
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echo " ✓ 服务已恢复"
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echo "$NEW_URL" > "$URL_FILE"
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# 失败计数清零
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echo 0 > "$STATE"
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echo
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echo " 当前可用地址: $NEW_URL"
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else
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echo " ✗ 还是不通（这条线路的问题，看门狗会继续重试）"
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fi
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fi
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