Switching the Engine (DNS) in Kubernetes: Benchmarks and Possibilities - Michael Grosser

This talk explores the crucial role of DNS in Kubernetes, focusing on its impact on service discovery and reliability. The speaker discusses the transition from Kube-DNS to CoreDNS, highlighting improvements and future possibilities for DNS management. Key topics include common DNS issues like UDP packet loss and tail latency, as well as a comparative analysis of the performance and reliability between Kube-DNS and CoreDNS. The session also delves into advanced features of CoreDNS, including local Daemonset caching, TCP support, prefetching, and DNS over gRPC.