PromptTuner MCP

# Multi-stage build for PromptTuner MCP # Stage 1: Dependencies FROM node:20-alpine AS deps WORKDIR /app # Copy package files COPY package*.json ./ # Install dependencies RUN npm ci --only=production && \ npm cache clean --force # Stage 2: Build FROM node:20-alpine AS builder WORKDIR /app # Copy package files COPY package*.json ./ COPY tsconfig.json ./ # Install all dependencies (including dev) RUN npm ci # Copy source code COPY src ./src # Build TypeScript RUN npm run build # Stage 3: Production FROM node:20-alpine AS runner WORKDIR /app # Set production environment ENV NODE_ENV=production # Create non-root user RUN addgroup -g 1001 -S nodejs && \ adduser -S nodejs -u 1001 # Copy dependencies from deps stage COPY --from=deps --chown=nodejs:nodejs /app/node_modules ./node_modules # Copy built application from builder stage COPY --from=builder --chown=nodejs:nodejs /app/dist ./dist COPY --from=builder --chown=nodejs:nodejs /app/package.json ./ # Switch to non-root user USER nodejs # Expose HTTP port (default: 3000) EXPOSE 3000 # Health check HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \ CMD node -e "require('http').get('http://localhost:3000/health', (r) => r.statusCode === 200 ? process.exit(0) : process.exit(1))" # Default to HTTP mode (can override with CMD in docker-compose) ENTRYPOINT ["node", "dist/index.js"] CMD ["--http", "--host", "0.0.0.0"]