QR Code MCP Server

# Use official Node.js LTS Alpine image for security and smaller size FROM node:24-alpine AS base # Set working directory WORKDIR /app # Install security updates and required packages RUN apk --no-cache add \ dumb-init \ && rm -rf /var/cache/apk/* # Create non-root user for security RUN addgroup -g 1001 -S nodejs && \ adduser -S qrcode -u 1001 -G nodejs # Copy package files COPY package*.json ./ # Install dependencies with npm ci for reproducible builds RUN npm ci --only=production && \ npm cache clean --force # Development stage FROM base AS development ENV NODE_ENV=development RUN npm ci COPY . . RUN npm run build # Production stage FROM base AS production # Set production environment ENV NODE_ENV=production ENV PORT=3000 # Copy built application from development stage COPY --from=development --chown=qrcode:nodejs /app/dist ./dist COPY --from=development --chown=qrcode:nodejs /app/package*.json ./ # Security: Remove unnecessary packages and clean up RUN npm prune --production && \ rm -rf /root/.npm /tmp/* /var/tmp/* && \ chmod -R 755 /app # Switch to non-root user USER qrcode # Health check HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \ CMD node --version || exit 1 # Expose port (though MCP typically uses stdio) EXPOSE 3000 # Use dumb-init to handle signals properly ENTRYPOINT ["dumb-init", "--"] # Default command CMD ["node", "dist/index.js"]