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Dockerfile

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+# Use Node.js 20 Alpine Linux as base image (small and secure)
+FROM node:20-alpine
+
+# Set working directory
+WORKDIR /app
+
+# Create non-root user for security
+RUN addgroup --system --gid 1001 apiserver && \
+    adduser --system --uid 1001 --ingroup apiserver apiserver
+
+# Install curl for health checks
+RUN apk add --no-cache curl
+
+# Copy package files first for better Docker layer caching
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci --only=production && npm cache clean --force
+
+# Copy configuration files
+COPY config.json ./
+COPY .env.production ./.env
+
+# Copy server source code
+COPY server.js ./
+
+# Create necessary directories and set permissions
+RUN mkdir -p /app/data /app/logs && \
+    chown -R apiserver:apiserver /app
+
+# Switch to non-root user
+USER apiserver
+
+# Expose port 3001
+EXPOSE 3001
+
+# Health check to ensure container stays healthy
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+  CMD curl -f http://localhost:3001/api/v1/health \
+      -H "Authorization: Bearer ${API_KEY:-your-secure-api-key-here}" || exit 1
+
+# Set environment variables
+ENV NODE_ENV=production
+ENV PORT=3001
+ENV API_ROOT_DIRECTORY=/app/data
+
+# Start the API server
+CMD ["node", "server.js"]