dev_1.0.0_yuyr 完成 log和bind模块开发部署测试 (#8)

- [x] 完成log模块镜像构建、本地端到端写日志——收集——查询流程；
- [x] 完成bind模块构建；
- [x] 内置域名IP自动更新脚本，使用 /private/argus/etc目录下文件进行同步，容器启动时自动写IP，定时任务刷新更新DNS服务器IP和DNS规则；

Co-authored-by: root <root@curious.host.com>
Reviewed-on: #8
Reviewed-by: sundapeng <sundp@mail.zgclab.edu.cn>

src/bind/build/argus_dns_sync.sh

@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+WATCH_DIR="/private/argus/etc"
+ZONE_DB="/private/argus/bind/db.argus.com"
+LOCKFILE="/var/lock/argus_dns_sync.lock"
+BACKUP_DIR="/private/argus/bind/.backup"
+SLEEP_SECONDS=10
+RELOAD_SCRIPT="/usr/local/bin/reload-bind9.sh"   # 这里放你已有脚本的路径
+
+mkdir -p "$(dirname "$LOCKFILE")" "$BACKUP_DIR"
+
+is_ipv4() {
+  local ip="$1"
+  [[ "$ip" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]] || return 1
+  IFS='.' read -r a b c d <<<"$ip"
+  for n in "$a" "$b" "$c" "$d"; do
+    (( n >= 0 && n <= 255 )) || return 1
+  done
+  return 0
+}
+
+get_current_ip() {
+  local name="$1"
+  sed -n -E "s/^${name}[[:space:]]+IN[[:space:]]+A[[:space:]]+([0-9.]+)[[:space:]]*$/\1/p" "$ZONE_DB" | head -n1
+}
+
+upsert_record() {
+  local name="$1"
+  local new_ip="$2"
+  local ts
+  ts="$(date +%Y%m%d-%H%M%S)"
+  local changed=0
+
+  cp -a "$ZONE_DB" "$BACKUP_DIR/db.argus.com.$ts.bak"
+
+  local cur_ip
+  cur_ip="$(get_current_ip "$name" || true)"
+
+  if [[ -z "$cur_ip" ]]; then
+    # Ensure the file ends with a newline before adding new record
+    if [[ -s "$ZONE_DB" ]] && [[ $(tail -c1 "$ZONE_DB" | wc -l) -eq 0 ]]; then
+      echo "" >> "$ZONE_DB"
+    fi
+    printf "%-20s IN A %s\n" "$name" "$new_ip" >> "$ZONE_DB"
+    echo "[ADD] ${name} -> ${new_ip}"
+    changed=1
+  elif [[ "$cur_ip" != "$new_ip" ]]; then
+    awk -v n="$name" -v ip="$new_ip" '
+      {
+        if ($1==n && $2=="IN" && $3=="A") {
+          printf "%-20s IN A %s\n", n, ip
+        } else {
+          print
+        }
+      }
+    ' "$ZONE_DB" > "${ZONE_DB}.tmp" && mv "${ZONE_DB}.tmp" "$ZONE_DB"
+    echo "[UPDATE] ${name}: ${cur_ip} -> ${new_ip}"
+    changed=1
+  else
+    echo "[SKIP] ${name} unchanged (${new_ip})"
+  fi
+
+  return $changed
+}
+
+while true; do
+  exec 9>"$LOCKFILE"
+  if flock -n 9; then
+    shopt -s nullglob
+    NEED_RELOAD=0
+
+    for f in "$WATCH_DIR"/*.argus.com; do
+      base="$(basename "$f")"
+      name="${base%.argus.com}"
+      ip="$(grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' "$f" | tail -n1 || true)"
+
+      if [[ -z "$ip" ]] || ! is_ipv4 "$ip"; then
+        echo "[WARN] $f 未找到有效 IPv4，跳过"
+        continue
+      fi
+
+      if upsert_record "$name" "$ip"; then
+        NEED_RELOAD=1
+      fi
+    done
+
+    if [[ $NEED_RELOAD -eq 1 ]]; then
+      echo "[INFO] 检测到 db.argus.com 变更，执行 reload-bind9.sh"
+      bash "$RELOAD_SCRIPT"
+    fi
+
+    flock -u 9
+  else
+    echo "[INFO] 已有同步任务在运行，跳过本轮"
+  fi
+
+  sleep "$SLEEP_SECONDS"
+done
+