MCP Screenshot Server

# Dockerfile for MCP Screenshot Server # Installs the published NPM package FROM node:20-alpine # Install build dependencies and runtime dependencies RUN apk add --no-cache \ # Build tools for native modules python3 \ py3-setuptools \ make \ g++ \ # Runtime dependencies tini \ # X11 and display server xvfb \ x11vnc \ fluxbox \ # Screenshot tools scrot \ imagemagick \ # Image processing cairo \ jpeg \ pango \ giflib \ pixman \ # OCR for PII detection tesseract-ocr \ tesseract-ocr-data-eng \ # Utilities bash \ dbus \ && rm -rf /var/cache/apk/* # Create non-root user for security RUN addgroup -g 1001 -S mcp && \ adduser -u 1001 -S mcp -G mcp # Set working directory WORKDIR /app # Install the published package from NPM RUN npm install -g @ai-capabilities-suite/mcp-screenshot@1.0.2 # Copy Tesseract data COPY --chown=mcp:mcp eng.traineddata /usr/share/tessdata/ # Create directories for screenshots RUN mkdir -p /app/screenshots /tmp/.X11-unix && \ chown -R mcp:mcp /app/screenshots /tmp/.X11-unix # Copy entrypoint script COPY --chown=mcp:mcp docker-entrypoint.sh /app/ RUN chmod +x /app/docker-entrypoint.sh # Set environment variables ENV NODE_ENV=production \ DISPLAY=:99 \ TESSDATA_PREFIX=/usr/share/tessdata \ LOG_LEVEL=info # Expose port for VNC (optional, for debugging) EXPOSE 5900 # Switch to non-root user USER mcp # Use tini as init system for proper signal handling ENTRYPOINT ["/sbin/tini", "--", "/app/docker-entrypoint.sh"] # Run the MCP server CMD ["mcp-screenshot-server"] # Health check HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \ CMD node -e "process.exit(0)" || exit 1 # Labels for metadata LABEL org.opencontainers.image.title="MCP Screenshot Server" \ org.opencontainers.image.description="Enterprise-grade MCP server for screenshot capture and processing" \ org.opencontainers.image.vendor="DigiDefiance" \ org.opencontainers.image.authors="Jessica Mulein <jessica@digitaldefiance.org>" \ org.opencontainers.image.url="https://github.com/digital-defiance/ai-capabilities-suite" \ org.opencontainers.image.source="https://github.com/digital-defiance/ai-capabilities-suite" \ org.opencontainers.image.licenses="MIT"