diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..b846f21
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,2 @@
+FROM nginx:alpine
+COPY nginx.conf /etc/nginx/nginx.conf
diff --git a/nginx.conf b/nginx.conf
new file mode 100644
index 0000000..8b8b021
--- /dev/null
+++ b/nginx.conf
@@ -0,0 +1,70 @@
+events {
+    worker_connections 1024;
+}
+
+http {
+    map $http_upgrade $connection_upgrade {
+        default upgrade;
+        ''      close;
+    }
+
+    upstream backend {
+        server backend:8000;
+    }
+
+    upstream frontend {
+        server frontend:5173;
+    }
+
+    server {
+        listen 80;
+        server_name _;
+
+        location /api/ {
+            proxy_pass http://backend;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection $connection_upgrade;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        location /pages/ {
+            proxy_pass http://backend;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection $connection_upgrade;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        # FastAPI MCP (Streamable HTTP) — バッファリング無効でストリーミング応答を即時転送
+        location /mcp {
+            proxy_pass http://backend;
+            proxy_http_version 1.1;
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_read_timeout 300s;
+            proxy_send_timeout 300s;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        location / {
+            proxy_pass http://frontend;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection $connection_upgrade;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+    }
+}