Dockerfile

# Use Playwright image that already includes browsers + Node
FROM mcr.microsoft.com/playwright:v1.49.0-jammy

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --omit=dev

# Copy application files
COPY . .

# Create non-root user for security
RUN groupadd -r renderer && useradd -r -g renderer renderer && \
    chown -R renderer:renderer /app

# Switch to non-root user
USER renderer

# Expose port
EXPOSE 3000

# Set environment to production
ENV NODE_ENV=production

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD node -e "require('http').get('http://localhost:3000/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

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