FastMail MCP Server

# FastMail MCP Server Dockerfile # Multi-stage build for optimized container size FROM node:20-alpine AS builder # Set working directory WORKDIR /app # Copy package files COPY package*.json ./ # Install dependencies including devDependencies for build RUN npm ci --only=production && npm cache clean --force # Production stage FROM node:20-alpine AS production # Install dumb-init for proper signal handling RUN apk add --no-cache dumb-init # Create app user for security RUN addgroup -g 1001 -S mcp && \ adduser -S mcp -u 1001 # Set working directory WORKDIR /app # Copy dependencies from builder COPY --from=builder /app/node_modules ./node_modules COPY --chown=mcp:mcp package*.json ./ # Copy source code COPY --chown=mcp:mcp src/ ./src/ # Create data directory for potential file operations RUN mkdir -p /app/data && chown -R mcp:mcp /app/data # Copy entrypoint script COPY docker-entrypoint.sh /usr/local/bin/ RUN chmod +x /usr/local/bin/docker-entrypoint.sh # Switch to non-root user USER mcp # Expose MCP stdio port (not actually used but good for documentation) EXPOSE 3000 # Health check to ensure MCP server is responding HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \ CMD node -e "console.log('MCP server health check')" || exit 1 # Set environment variables ENV NODE_ENV=production ENV MCP_TRANSPORT=stdio # Use dumb-init as entrypoint for proper signal handling ENTRYPOINT ["dumb-init", "--"] CMD ["/usr/local/bin/docker-entrypoint.sh"]