edit .gitlab-ci

Dockerfile

@@ -1,56 +1,52 @@
 # ============================================================
-# 🏗️  Stage 1 — Builder
+# 🏗️ Stage 1 — Builder
 # ============================================================
 FROM node:20-alpine AS builder
 
-# Install hanya yang diperlukan untuk build
+# Install dependensi dasar
 RUN apk add --no-cache git bash build-base curl
 
 WORKDIR /app
 
-# Copy dependency list terlebih dahulu agar cache efektif
+# Copy dependencies terlebih dahulu agar cache efisien
 COPY package*.json ./
 
-# Gunakan npm ci (lebih cepat, konsisten)
-RUN npm ci --omit=dev
+# Pastikan npm up to date agar mendukung flag terbaru
+RUN npm install -g npm@11 && npm --version
 
-# Copy source code terakhir
+# Install dependency tanpa devDependencies (aman di semua npm versi)
+RUN npm ci --only=production
+
+# Copy seluruh source
 COPY . .
 
-# Buat config agar Next tahu mode static export
+# Buat konfigurasi output Next.js
 RUN echo "const config = { output: 'export', images: { unoptimized: true } }; export default config;" > next.config.mjs
 
-# Build Next.js tanpa Turbopack, lalu hapus cache npm
+# Build project (disable Turbopack agar tidak makan RAM)
 ENV NEXT_DISABLE_TURBOPACK=1
 RUN npx next build && npm cache clean --force
 
-# Tambahkan cache folder _next agar bisa dilayani oleh server
+# Siapkan folder static untuk serve
 RUN mkdir -p .next/server/app/_next && \
     cp -r .next/static .next/server/app/_next/static && \
     cp -r public/assets .next/server/app/ || true
 
 # ============================================================
-# 🧱  Stage 2 — Runtime (super ringan)
+# 🧱 Stage 2 — Runtime
 # ============================================================
 FROM node:20-alpine AS runtime
 
-# Install hanya 1 dependency ringan untuk serving static file
-RUN npm install -g serve && apk add --no-cache tini
+RUN apk add --no-cache tini && npm install -g serve
 
 WORKDIR /app
 
-# Copy hasil build dari stage sebelumnya
 COPY --from=builder /app/.next/server/app ./server
-COPY --from=builder /app/.next/server/app/_next ./server/_next
 COPY --from=builder /app/public ./public
 
-# Set environment minimal
 ENV NODE_ENV=production
 ENV PORT=3000
 
 EXPOSE 3000
-
-# Jalankan lewat tini untuk handle signal & memory leak
 ENTRYPOINT ["/sbin/tini", "--"]
-
 CMD ["serve", "-s", "server", "-l", "3000"]