Advanced Filters - Build optimizations

frontend/Dockerfile

@@ -1,40 +1,58 @@
-# Use node 18 alpine for smaller image size
-FROM node:18-alpine
-
+# Multi-stage build for better layer caching and smaller final image
+FROM node:18-alpine AS deps
 WORKDIR /app
 
-# Install dumb-init for proper signal handling
+# Install dumb-init early
 RUN apk add --no-cache dumb-init
 
-# Copy package files
+# Copy package files first to leverage Docker layer caching
 COPY package*.json ./
 
-# Install all dependencies (including devDependencies needed for build)
-# Set npm config for better CI performance
-RUN npm ci --prefer-offline --no-audit
+# Install dependencies with optimized settings
+RUN npm ci --prefer-offline --no-audit --frozen-lockfile
 
-# Copy source code
+# Build stage
+FROM node:18-alpine AS builder
+WORKDIR /app
+
+# Copy dependencies from deps stage
+COPY --from=deps /app/node_modules ./node_modules
 COPY . .
 
-# Set Node.js memory limit for build (helpful in constrained environments)
+# Set Node.js memory limit for build
 ENV NODE_OPTIONS="--max-old-space-size=1024"
+ENV NEXT_TELEMETRY_DISABLED=1
 
 # Build the application
 RUN npm run build
 
-# Remove devDependencies after build to reduce image size
-RUN npm prune --omit=dev
+# Production stage
+FROM node:18-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+
+# Install dumb-init for proper signal handling
+RUN apk add --no-cache dumb-init
 
 # Create non-root user for security
 RUN addgroup -g 1001 -S nodejs
 RUN adduser -S nextjs -u 1001
 
-# Change ownership of the app directory
-RUN chown -R nextjs:nodejs /app
+# Copy necessary files from builder stage
+COPY --from=builder /app/next.config.js* ./
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/package.json ./package.json
+
+# Copy built application
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
 USER nextjs
 
 EXPOSE 3000
 
 # Use dumb-init to handle signals properly
 ENTRYPOINT ["dumb-init", "--"]
-CMD ["npm", "start"]
+CMD ["node", "server.js"]