Update Dockerfile

Author: rcook0

frontend/Dockerfile

@@ -1,7 +1,27 @@
-FROM node:20
+# --- Stage 1: Build React app ---
+FROM node:18 AS build
 WORKDIR /app
-COPY package.json ./
+
+# Install dependencies
+COPY package.json package-lock.json ./
 RUN npm install
+
+# Copy source and build
 COPY . .
-EXPOSE 8080
-CMD ["npm", "start"]
+RUN npm run build
+
+# --- Stage 2: Serve with Nginx ---
+FROM nginx:alpine
+WORKDIR /usr/share/nginx/html
+
+# Remove default nginx index page
+RUN rm -rf ./*
+
+# Copy built React app from builder
+COPY --from=build /app/build .
+
+# Copy custom nginx config
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]