Beyond the Limits: Scaling Kubernetes Controllers Horizontally - Tim Ebert

This talk addresses the scalability challenges faced by Kubernetes controllers as infrastructure grows, highlighting the limitations of traditional setups that can lead to slow reconciliation times and impact overall cluster stability. The speaker, Tim Ebert, introduces sharding as an innovative solution, demonstrating how to apply proven techniques from distributed databases to horizontally scale controller workloads across multiple instances. He delves into the technical implementation of sharding within Kubernetes controllers, empowering attendees to enhance their infrastructure's performance and overcome existing constraints. With a focus on practical solutions, the session aims to elevate the entire ecosystem of cloud-native platforms by enabling scalable, efficient controller management. Tim Ebert, a core developer and maintainer of Gardener at STACKIT, brings extensive experience in designing and operating cloud-native systems, offering valuable insights into managing Kubernetes at scale.