Zero Downtime Upgrades at Scale: How Okta Manages Hundreds of Clusters Daily

Learn how Okta manages and upgrades hundreds of Kubernetes clusters with zero downtime in this conference talk from KubeCon. Discover the challenges and solutions for maintaining large-scale cluster environments that host over 130 services each, with node counts ranging from 20-400 requiring daily updates. Explore the custom-built deployment method that enables quick rollbacks and canary rollouts while minimizing potential issues. Gain practical insights into leveraging open source technologies to address three critical challenges: scaling cluster operations, implementing robust security measures, and executing seamless upgrades without service interruption. Follow along as Okta engineers Jérémy Albuixech and Kahou Lei share their experiences and best practices for managing complex Kubernetes infrastructures at scale.