KubeCon + CloudNativeCon North America 2024

Most Kubernetes users run more than one cluster, and some run hundreds or more. Crossing cluster boundaries has always been a challenge, because most Kubernetes APIs, tools, and operators are cluster-centric. In fact, there’s a remarkable lack of standard tools and patterns for multi-cluster. Over time users have found ways to stitch clusters together but the community has been asking for standardization.To share multi-cluster tools, Kubernetes sig-multicluster has introduced the “ClusterProfile” API, a critical building block for multi-cluster capabilities. This API provides a canonical way for multicluster controllers and users to iterate over clusters, and to install or manage multi-cluster features. In this talk, we will look at some of the problems inherent to multi-clustering, explain the concepts introduced by this new API and look at implementations and consumers of it.We dive into real life examples of patterns and usage, with products such as Kueue, ArgoCD, and Argo workflow.