Multi-Cluster StatefulSet Migration: A Solution to Upgrade Pain

Explore a conference talk that addresses the challenges of migrating stateful workloads in Kubernetes environments. Learn about the operational paradigms needed to support moving state across clusters while maintaining availability during migration. Discover how administrators can safely perform Day 2 operations and maintenance events while protecting data and application state. Gain insights into the complex workflows required for data replication, pod and persistent volume migration, and state management. Examine a potential solution for seamlessly migrating StatefulSets between node pools or across clusters to simplify upgrade and workload migration problems. Delve into the complex patterns developed at Chronosphere for safely migrating stateful workloads and coordinating maintenance operations across multiple zones and regions. Understand the new Kubernetes enhancement called StatefulSet Partition and its integration into multi-cluster deployments, exploring how it can simplify operations and allow focus on core business logic.