dev_1.0.0_yuyr_2：重新提交 PR，增加 master/agent 以及系统集成测试 (#17)

Reviewed-on: #17
Reviewed-by: sundapeng <sundp@mail.zgclab.edu.cn>
Reviewed-by: xuxt <xuxt@zgclab.edu.cn>

src/bind/build/argus_dns_sync.sh

@@ -9,6 +9,9 @@ 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")" "$BACKUP_DIR"
+BACKUP_UID="${ARGUS_BUILD_UID:-2133}"
+BACKUP_GID="${ARGUS_BUILD_GID:-2015}"
+chown -R "$BACKUP_UID:$BACKUP_GID" "$BACKUP_DIR" 2>/dev/null || true
 
 is_ipv4() {
   local ip="$1"
@@ -33,6 +36,7 @@ upsert_record() {
   local changed=0
 
   cp -a "$ZONE_DB" "$BACKUP_DIR/db.argus.com.$ts.bak"
+  chown "$BACKUP_UID:$BACKUP_GID" "$BACKUP_DIR/db.argus.com.$ts.bak" 2>/dev/null || true
 
   local cur_ip
   cur_ip="$(get_current_ip "$name" || true)"
@@ -61,7 +65,10 @@ upsert_record() {
     echo "[SKIP] ${name} unchanged (${new_ip})"
   fi
 
-  return $changed
+  if [[ $changed -eq 1 ]]; then
+    return 0
+  fi
+  return 1
 }
 
 while true; do
@@ -70,7 +77,7 @@ while true; do
     shopt -s nullglob
     NEED_RELOAD=0
 
-    for f in "$WATCH_DIR"/*.argus.com; do
+  for f in "$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)"
@@ -97,4 +104,3 @@ while true; do
 
   sleep "$SLEEP_SECONDS"
 done
-