NestJS in Production: 20 Default Configurations That Can Break Your Kubernetes Cluster (A DevOps Story)

😱 Production went down… because of a default setting Have you ever seen this? The dev team ships a new feature using a modern, elegant, enterprise-ready framework like NestJS .Everything works perfectly on local.QA passes.Production deploys. And suddenly… 500 errors everywhere Kubernetes pods restarting Logs that tell you absolutely nothing The root cause? 👉 A 100kb default request body limit that nobody knew existed. Yes. That tiny default almost ruined our Friday night. 😅 As a DevOps engineer working with Kubernetes and Azure, this was a wake-up call. NestJS is an amazing framework—but defaults are not production-ready by magic . This post is not about blaming developers.It’s about shared responsibility . Framework defaults are convenient.Production environments are not. Below are 20 NestJS defaults and behaviors that every DevOps engineer should be aware of when NestJS lands in a Kubernetes cluster. 1️⃣ The 100kb That Almost Killed PROD (Body Parser) NestJS (with Express under the h