update dockerfile frontend for gitops

frontend/Dockerfile

@@ -1,35 +1,33 @@
 # Gunakan base image yang lebih ringan
 FROM node:18-alpine AS builder
 
-# Set working directory
 WORKDIR /app
 
-# Copy package.json dan package-lock.json
+# Copy package.json dan package-lock.json (kalau ada)
 COPY package*.json ./
 
-# Install dependencies (termasuk dev) di stage build
-RUN npm ci
+# Install dependencies (termasuk dev)
+# Ganti npm ci -> npm install biar gak error kalau belum ada lock file
+RUN npm install
 
-# Copy semua source code
+# Copy seluruh source code
 COPY . .
 
-# Build React app (kalau ini frontend)
+# Build React app
 RUN npm run build
 
-
 # ---------------------------
-# Stage 2: image produksi
+# Stage 2: production image
 # ---------------------------
 FROM node:18-alpine
 
 WORKDIR /app
 
-# Hanya copy file hasil build dari stage sebelumnya
+# Copy 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
+# Install serve untuk menyajikan React app
+RUN npm install -g serve && npm cache clean --force
 
 # Ubah kepemilikan agar aman di Kubernetes
 RUN chown -R node:node /app
@@ -38,5 +36,5 @@ USER node
 # Expose port
 EXPOSE 3000
 
-# Jalankan app (gunakan serve untuk app React, atau npm start kalau Node server)
-CMD ["npx", "serve", "-s", "build"]
+# Jalankan app React statis
+CMD ["serve", "-s", "build"]