feat: frontend 이미지 생성을 위한 Dockerfile 및 nginx 설정 추가

frontend/.dockerignore

@@ -0,0 +1,6 @@
+node_modules
+.git
+.DS_Store
+npm-debug.log
+dist
+build

frontend/Dockerfile

@@ -0,0 +1,18 @@
+# Stage 1: Build the React app
+FROM node:24 AS builder
+WORKDIR /app
+COPY package.json ./
+COPY package-lock.json ./
+
+RUN npm install --frozen-lockfile
+
+COPY . .
+
+RUN npm run build
+
+# Stage 2: Serve with Nginx
+FROM nginx:latest
+COPY --from=builder /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

frontend/nginx.conf

@@ -0,0 +1,15 @@
+server {
+  listen 80;
+  server_name localhost;
+
+  location / {
+    root   /usr/share/nginx/html;
+    index  index.html index.htm;
+    try_files $uri $uri/ /index.html;
+  }
+
+  error_page   500 502 503 504  /50x.html;
+  location = /50x.html {
+    root   /usr/share/nginx/html;
+  }
+}