update docker frontend for gitops

frontend/.dockerignore

@@ -1,4 +1,7 @@
 node_modules
+npm-debug.log
+Dockerfile
+.dockerignore
 .git
 .gitignore
-Dockerfile
+README.md

frontend/Dockerfile

@@ -1,23 +1,42 @@
-FROM node:18-alpine
+# Gunakan base image yang lebih ringan
+FROM node:18-alpine AS builder
 
 # Set working directory
 WORKDIR /app
 
-# Copy package.json & package-lock.json (kalau ada)
+# Copy package.json dan package-lock.json
 COPY package*.json ./
 
-# Install dependencies production-only
+# Install dependencies (termasuk dev) di stage build
-RUN npm install --only=production
+RUN npm ci
 
-# Copy source code
+# Copy semua source code
 COPY . .
 
+# Build React app (kalau ini frontend)
+RUN npm run build
+
+
+# ---------------------------
+# Stage 2: image produksi
+# ---------------------------
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Hanya copy file hasil build dari stage sebelumnya
+COPY --from=builder /app/build ./build
+COPY package*.json ./
+
+# Install hanya dependency production
+RUN npm ci --only=production && npm cache clean --force
+
 # Ubah kepemilikan agar aman di Kubernetes
 RUN chown -R node:node /app
 USER node
 
-# Expose port 3000
+# Expose port
 EXPOSE 3000
 
-# Jalankan app
+# Jalankan app (gunakan serve untuk app React, atau npm start kalau Node server)
-CMD ["npm", "start"]
+CMD ["npx", "serve", "-s", "build"]