3fec6813f3
- Add intelligent protocol version negotiation (2024-11-05 for n8n, 2025-03-26 for standard clients) - Fix memory leak potential with async cleanup and connection close handling - Enhance error sanitization for production environments - Add schema validation for n8n nested output workaround - Improve Docker security with unpredictable UIDs/GIDs - Create n8n-friendly tool descriptions to reduce schema validation errors - Add comprehensive protocol negotiation test suite Addresses code review feedback: - Protocol version inconsistency resolved - Memory management improved - Error information leakage fixed - Docker security enhanced 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
88 lines
2.9 KiB
Docker
88 lines
2.9 KiB
Docker
# syntax=docker/dockerfile:1.7
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# Ultra-optimized Dockerfile - minimal runtime dependencies (no n8n packages)
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# Stage 1: Builder (TypeScript compilation only)
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FROM node:22-alpine AS builder
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WORKDIR /app
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# Copy tsconfig files for TypeScript compilation
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COPY tsconfig*.json ./
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# Create minimal package.json and install ONLY build dependencies
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RUN --mount=type=cache,target=/root/.npm \
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echo '{}' > package.json && \
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npm install --no-save typescript@^5.8.3 @types/node@^22.15.30 @types/express@^5.0.3 \
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@modelcontextprotocol/sdk@^1.12.1 dotenv@^16.5.0 express@^5.1.0 axios@^1.10.0 \
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n8n-workflow@^1.96.0 uuid@^11.0.5 @types/uuid@^10.0.0
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# Copy source and build
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COPY src ./src
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# Note: src/n8n contains TypeScript types needed for compilation
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# These will be compiled but not included in runtime
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RUN npx tsc -p tsconfig.build.json
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# Stage 2: Runtime (minimal dependencies)
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FROM node:22-alpine AS runtime
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WORKDIR /app
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# Install only essential runtime tools
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RUN apk add --no-cache curl su-exec && \
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rm -rf /var/cache/apk/*
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# Copy runtime-only package.json
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COPY package.runtime.json package.json
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# Install runtime dependencies with cache mount
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RUN --mount=type=cache,target=/root/.npm \
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npm install --production --no-audit --no-fund
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# Copy built application
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COPY --from=builder /app/dist ./dist
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# Copy pre-built database and required files
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# Cache bust: 2025-07-06-trigger-fix-v3 - includes is_trigger=true for webhook,cron,interval,emailReadImap
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COPY data/nodes.db ./data/
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COPY src/database/schema-optimized.sql ./src/database/
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COPY .env.example ./
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# Copy entrypoint script, config parser, and n8n-mcp command
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COPY docker/docker-entrypoint.sh /usr/local/bin/
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COPY docker/parse-config.js /app/docker/
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COPY docker/n8n-mcp /usr/local/bin/
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RUN chmod +x /usr/local/bin/docker-entrypoint.sh /usr/local/bin/n8n-mcp
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# Add container labels
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LABEL org.opencontainers.image.source="https://github.com/czlonkowski/n8n-mcp"
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LABEL org.opencontainers.image.description="n8n MCP Server - Runtime Only"
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LABEL org.opencontainers.image.licenses="MIT"
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LABEL org.opencontainers.image.title="n8n-mcp"
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# Create non-root user with unpredictable UID/GID
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# Using a hash of the build time to generate unpredictable IDs
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RUN BUILD_HASH=$(date +%s | sha256sum | head -c 8) && \
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UID=$((10000 + 0x${BUILD_HASH} % 50000)) && \
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GID=$((10000 + 0x${BUILD_HASH} % 50000)) && \
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addgroup -g ${GID} -S nodejs && \
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adduser -S nodejs -u ${UID} -G nodejs && \
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chown -R nodejs:nodejs /app
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# Switch to non-root user
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USER nodejs
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# Set Docker environment flag
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ENV IS_DOCKER=true
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# Expose HTTP port
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EXPOSE 3000
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# Set stop signal to SIGTERM (default, but explicit is better)
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STOPSIGNAL SIGTERM
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# Health check
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HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
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CMD curl -f http://127.0.0.1:3000/health || exit 1
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# Optimized entrypoint
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ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
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CMD ["node", "dist/mcp/index.js"]
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