diff --git a/values.yaml b/values.yaml
index bff0c53..1a76b3b 100644
--- a/values.yaml
+++ b/values.yaml
@@ -44,6 +44,28 @@ wordpress:
       # ads.txt content
       # google.com, pub-0000000000000000, DIRECT, f08c47fec0942fa0
 
+nginx:
+  extraConfig: |
+    # リアルIPの取得設定
+    real_ip_header X-Forwarded-For;
+    real_ip_recursive on;
+    
+    # Kubernetesクラスタ内のIPレンジを信頼
+    set_real_ip_from 10.0.0.0/8;
+    set_real_ip_from 172.16.0.0/12;
+    set_real_ip_from 192.168.0.0/16;
+    
+    # CloudflareやAWS ALB等を使っている場合は追加
+    # set_real_ip_from 173.245.48.0/20;
+    # set_real_ip_from 103.21.244.0/22;
+    # ... (Cloudflareの他のIPレンジ)
+
+  # FastCGIパラメータにリアルIPを渡す
+  fastcgiParams:
+    REMOTE_ADDR: $remote_addr
+    HTTP_X_REAL_IP: $realip_remote_addr
+    HTTP_X_FORWARDED_FOR: $proxy_add_x_forwarded_for
+
 # Service設定
 service:
   type: LoadBalancer