Almost every component of the Kubernetes control plane runs on top of a Watch connection to the API Server. Argo CD, HPA, kubelet, kube-proxy, all of them. When a Watch connection drops, controllers stall, and if they all recover at once, the API Server can go down with them.
This article walks through the internals of the Watch Cache first, then covers what happens when each part of the pipeline breaks.
In October 2025, I read an issue on GitHub. Four months later, 20 PRs had been merged and I'd been invited as a project member.
Here's a record of what happened in between.
When first encountering Kubernetes, it's easy to feel overwhelmed by its complexity and steep learning curve. However, once you overcome this initial barrier and start applying it in production, you begin to experience the powerful conveniences hidden within that complexity.
Installing Kubernetes directly with kubeadm will give you a deeper understanding of how the cluster works internally. This article covers the core architecture and network configurations encountered during the installation process.
Container technology is an essential element in cloud-native environments. This article covers everything from Linux kernel-based technologies to management methods in Kubernetes.