Beyond the Limits: Scaling Kubernetes Controllers Horizontally

This conference talk explores solutions for Kubernetes controllers that struggle with growing infrastructure demands. Learn how to overcome scalability challenges as Tim Ebert from STACKIT introduces sharding as a groundbreaking approach to horizontally scale controller workloads across multiple instances. Discover how this technique improves reconciliation times, enhances application performance, and increases cluster stability. Dive into the technical implementation details of applying proven sharding mechanisms from distributed databases to effectively partition controller workloads. Understand the underlying concepts and practical steps to implement sharding in your own Kubernetes controllers, helping you unlock the full potential of your infrastructure as it scales.