arghaantu/pipelines-javascript-docker ? reverse-engineered prompt

Build me a simple Node.js web app that uses Express and listens on port 8080, with a basic page or response so I can tell it’s working.

I want it packaged so it can run in Docker, and I also want Kubernetes files that let me deploy it to a cluster, including a deployment and a service. If the app needs any secret or service account setup for Kubernetes, please include clear placeholders and make it easy to swap in my own values.

Also set it up so Azure Pipelines can build the app and the container image, then prepare it for deployment. Keep it as a clean sample project that’s easy to understand and run locally, then move into Docker and Kubernetes without a lot of extra complexity. If you need to check current docs for best practices, go ahead and look them up online.