S3 MCP Server

# Build stage FROM node:20-alpine AS builder # Set working directory WORKDIR /app # Install build dependencies RUN apk add --no-cache --virtual .build-deps python3 make g++ # Copy package.json and package-lock.json separately (for better cache optimization) COPY package.json ./ COPY package-lock.json ./ # Install dependencies needed for build RUN npm ci --ignore-scripts && \ npm cache clean --force # Copy source code COPY tsconfig.json ./ COPY src/ ./src/ # Build the application RUN npm run build # Runtime stage FROM node:20-alpine AS runner # Set working directory WORKDIR /app # Create non-root user RUN addgroup -S nodegroup && \ adduser -S nodeuser -G nodegroup # Copy package files COPY package.json ./ COPY package-lock.json ./ # Install production dependencies only RUN npm ci --omit=dev --ignore-scripts && \ npm cache clean --force # Copy built files from builder stage COPY --from=builder /app/dist ./dist/ # Create healthcheck script COPY --chown=nodeuser:nodegroup <<EOF /app/healthcheck.sh #!/bin/sh if [ -f /app/dist/index.js ]; then exit 0 else exit 1 fi EOF # Create entrypoint script that can run HTTP server or keep container alive RUN printf '#!/bin/sh\nif [ "$1" = "http" ]; then\n echo "Starting HTTP MCP Server on port ${PORT:-3000}..."\n exec node dist/index.js --http\nelse\n echo "AWS S3 MCP Server container started. Use docker exec to run commands."\n echo "For MCP Inspector, use: ./run-inspector.sh --docker"\n echo "For HTTP server, use: docker run with http argument"\n exec tail -f /dev/null\nfi\n' > /app/entrypoint.sh && \ chmod +x /app/entrypoint.sh && \ chmod +x /app/healthcheck.sh && \ chown -R nodeuser:nodegroup /app # Set default environment variables ENV NODE_ENV=production \ AWS_REGION=us-east-1 \ S3_MAX_BUCKETS=5 # Configure healthcheck HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 CMD ["/app/healthcheck.sh"] # Switch to non-root user USER nodeuser EXPOSE 3000 # Set entrypoint ENTRYPOINT ["/app/entrypoint.sh"]