This conference talk explores how to automate Kubernetes cluster upgrades while achieving zero downtime using Karpenter's disruption mechanism. Learn about the challenges DevOps teams face during cluster upgrades and discover how Karpenter provides a solution that works across major cloud platforms including AWS, Azure, and AlibabaCloud. The presenters from CloudPilot AI and DaoCloud demonstrate how this mechanism makes Kubernetes upgrades safe, controllable, efficient, and significantly reduces operational maintenance pressure. Understand how Karpenter's disruption works through practical examples and gain knowledge on implementing smooth upgrades that ensure continuous and stable service operation.