Dockerfile

# Use official Node.js LTS image
FROM node:18-alpine

# Install cloudflared
RUN apk add --no-cache curl && \
    curl -L --output /usr/local/bin/cloudflared https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64 && \
    chmod +x /usr/local/bin/cloudflared

# Set working directory
WORKDIR /app

# Copy package files and install dependencies
COPY package*.json ./
RUN npm ci --only=production && npm cache clean --force

# Copy application files  
COPY . .

# Create uploads directory structure
RUN mkdir -p uploads/pasted uploads/bin

# Expose port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD node -e "require('http').get('http://localhost:3000', (res) => process.exit(res.statusCode === 401 ? 0 : 1))"

# Start application
CMD ["node", "server.js"]