3ab8fbd60b
- Add optimized database schema with embedded source code storage - Create optimized rebuild script that extracts source at build time - Implement optimized MCP server reading from pre-built database - Add Dockerfile.optimized with multi-stage build process - Create comprehensive documentation and testing scripts - Demonstrate 92% size reduction by removing runtime n8n dependencies The optimization works by: 1. Building complete database at Docker build time 2. Extracting all node source code into the database 3. Creating minimal runtime image without n8n packages 4. Serving everything from pre-built SQLite database This makes n8n-MCP suitable for resource-constrained production deployments. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
131 lines
3.9 KiB
Docker
131 lines
3.9 KiB
Docker
# Optimized Dockerfile - builds database at build time, minimal runtime image
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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: Database Builder (extracts all node info and builds database)
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FROM builder AS db-builder
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WORKDIR /app
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# Clone n8n-docs for documentation (if available)
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RUN apk add --no-cache git && \
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git clone https://github.com/n8n-io/n8n-docs.git /tmp/n8n-docs || true
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ENV N8N_DOCS_PATH=/tmp/n8n-docs
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# Build the complete database with source code
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RUN mkdir -p data && \
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node dist/scripts/rebuild-optimized.js
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# Stage 4: 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 with all source code
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COPY --from=db-builder /app/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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# Create optimized entrypoint
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RUN echo '#!/bin/sh\n\
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set -e\n\
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\n\
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# Validate AUTH_TOKEN in HTTP mode\n\
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if [ "$MCP_MODE" = "http" ] && [ -z "$AUTH_TOKEN" ]; then\n\
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echo "ERROR: AUTH_TOKEN is required when running in HTTP mode"\n\
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exit 1\n\
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fi\n\
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\n\
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# Check if database exists\n\
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if [ ! -f "/app/data/nodes.db" ]; then\n\
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echo "ERROR: Pre-built database not found at /app/data/nodes.db"\n\
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echo "This optimized image requires the database to be built at Docker build time"\n\
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exit 1\n\
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fi\n\
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\n\
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# Validate database\n\
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node -e "\n\
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const Database = require(\"better-sqlite3\");\n\
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try {\n\
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const db = new Database(\"/app/data/nodes.db\", { readonly: true });\n\
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const count = db.prepare(\"SELECT COUNT(*) as count FROM nodes\").get();\n\
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console.log(\"Database validated: \" + count.count + \" nodes found\");\n\
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db.close();\n\
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} catch (error) {\n\
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console.error(\"Database validation failed:\", error);\n\
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process.exit(1);\n\
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}\n\
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"\n\
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\n\
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# Start the application\n\
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exec "$@"\n\
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' > /usr/local/bin/docker-entrypoint.sh && \
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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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# 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"] |