Kubernetes Version Upgrades on EKS Without Downtime: A Production Runbook
Most EKS outages I’ve seen during upgrades weren’t caused by Kubernetes. They were caused by a PodDisruptionBudget nobody remembered writing, a CNI add-on upgraded in the wrong order, or a Helm chart still using an API that was removed two versions ago. The upgrade itself is boring when the preparation is done. This post is

