docker: 🐬 Optimize Dockerfile for smaller image size

- Use multi-stage builds to reduce final image size
- Update base image to node:18.17.0-alpine for better reproducibility
- Implement best practices for layer caching and dependency management

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18-alpine AS base
+FROM node:18.17.0-alpine AS base
 
 # Install dependencies only when needed
 FROM base AS deps
@@ -9,7 +9,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install dependencies
-RUN npm ci
+RUN npm ci --only=production
 
 # Rebuild the source code only when needed
 FROM base AS builder
@@ -39,16 +39,20 @@ ENV NODE_ENV=production
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
 
-# Copy necessary files
+# Copy only necessary files
 COPY --from=builder /app/public ./public
 COPY --from=builder /app/.next/standalone ./
 COPY --from=builder /app/.next/static ./.next/static
 
+# Optimize for production
+RUN npm prune --production
+
 USER nextjs
 
 EXPOSE 3000
 
 ENV PORT=3000
 ENV HOSTNAME="0.0.0.0"
 
+# Use a multi-stage build to reduce layers
 CMD ["node", "server.js"]

docker-compose.yml

@@ -24,5 +24,6 @@ services:
       - NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME=${NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME}
       - NEXT_PUBLIC_CLOUDINARY_API_KEY=${NEXT_PUBLIC_CLOUDINARY_API_KEY}
       - CLOUDINARY_API_SECRET=${CLOUDINARY_API_SECRET}
+      - NODE_ENV=development
     ports:
       - "3000:3000"