feat: Dockerize web application by adding Dockerfile, .dockerignore, and configuring next.config for standalone output and image optimization.

Dockerfile

@@ -0,0 +1,66 @@
+# ===========================================
+# Web Dockerfile (Next.js)
+# ===========================================
+
+# Stage 1: Dependencies
+FROM node:20-alpine AS deps
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci
+
+# Stage 2: Build
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Copy dependencies from deps stage
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# Set environment variables for build
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV NODE_ENV=production
+
+# Build the application
+RUN npm run build
+
+# Stage 3: Production
+FROM node:20-alpine AS production
+
+WORKDIR /app
+
+# Create non-root user
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nextjs -u 1001
+
+# Set environment variables
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+
+# Copy necessary files from builder
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder /app/.next/static ./.next/static
+
+# Set ownership
+RUN chown -R nextjs:nodejs /app
+
+# Switch to non-root user
+USER nextjs
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:3000 || exit 1
+
+# Start the application
+CMD ["node", "server.js"]