Cloud Computing

Already have a Node.js API and wondering whether it can run without a traditional server? Learn how to move a small API endpoint to AWS Lambda, expose it through API Gateway, handle environment variables, structure the handler, and avoid common serverless mistakes.

Learn how to build secure direct-to-S3 file uploads using presigned URLs. This practical tutorial shows how your backend can authorize an upload while the browser sends the file directly to Amazon S3.

Learn how AWS IAM works, how users, roles, and policies control access to AWS resources, and how developers can follow least-privilege practices when building cloud applications.

Understand the differences between Docker containers and virtual machines, including architecture, performance, isolation, resource usage, deployment, and when developers should choose each approach.

Learn what Kubernetes is, why teams use it, how pods, deployments, services, and clusters work, and how Kubernetes fits into modern DevOps.