75952f94ca
Fixed the initialization timeout issue with minimal changes: 1. Added stdout flush after server connection to combat Docker buffering 2. Fixed docker-entrypoint.sh to not output to stdout in stdio mode 3. Added process.stdin.resume() to keep server alive 4. Added IS_DOCKER environment variable for future use 5. Updated README to prioritize Docker with correct -i flag configuration The core issue was Docker's block buffering preventing immediate JSON-RPC responses. The -i flag maintains stdin connection, and explicit flushing ensures responses reach Claude Desktop immediately. Also fixed "Shutting down..." message that was breaking JSON-RPC protocol by redirecting it to stderr in stdio mode. Docker is now the recommended installation method as originally intended. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
91 lines
2.5 KiB
Docker
91 lines
2.5 KiB
Docker
# Optimized Dockerfile - uses pre-built database for faster, more reliable builds
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# Stage 1: Dependencies (includes n8n for building)
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FROM node:20-alpine AS deps
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WORKDIR /app
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COPY package*.json ./
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# Configure npm for reliability
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RUN npm config set fetch-retries 5 && \
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npm config set fetch-retry-mintimeout 20000 && \
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npm config set fetch-retry-maxtimeout 120000 && \
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npm config set fetch-timeout 300000
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# Install all dependencies including n8n packages
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RUN npm ci
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# Stage 2: Builder (compiles TypeScript)
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FROM node:20-alpine AS builder
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WORKDIR /app
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COPY package*.json ./
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COPY --from=deps /app/node_modules ./node_modules
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COPY . .
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# Build TypeScript
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RUN npm run build
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# Stage 3: Minimal Runtime (no n8n packages)
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FROM node:20-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 && \
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rm -rf /var/cache/apk/*
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# Create package.json with only runtime dependencies
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RUN echo '{ \
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"name": "n8n-mcp-runtime", \
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"version": "1.0.0", \
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"private": true, \
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"dependencies": { \
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"@modelcontextprotocol/sdk": "^1.12.1", \
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"better-sqlite3": "^11.10.0", \
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"sql.js": "^1.13.0", \
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"express": "^5.1.0", \
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"dotenv": "^16.5.0" \
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} \
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}' > package.json
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# Install only runtime dependencies
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RUN npm config set fetch-retries 5 && \
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npm config set fetch-retry-mintimeout 20000 && \
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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 from source
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COPY data/nodes.db ./data/
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# Copy minimal required files
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COPY src/database/schema-optimized.sql ./src/database/
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COPY .env.example ./
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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 - Optimized Version"
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LABEL org.opencontainers.image.licenses="Sustainable-Use-1.0"
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LABEL org.opencontainers.image.title="n8n-mcp-optimized"
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# Create non-root user
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RUN addgroup -g 1001 -S nodejs && \
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adduser -S nodejs -u 1001 && \
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chown -R nodejs:nodejs /app
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# Copy entrypoint script
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COPY docker/docker-entrypoint.sh /usr/local/bin/
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RUN chmod +x /usr/local/bin/docker-entrypoint.sh
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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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# 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"] |