Multicluster: The Future of Kubernetes Beyond Cluster Boundaries

Introduction

The SIG Multicluster is the Special Interest Group focused on applying Kubernetes concepts beyond the confines of a single cluster. Traditionally, Kubernetes resources interact only within these boundaries. With the growing prevalence of multicloud and multicluster deployments, the work of SIG Multicluster is becoming increasingly significant. In this blog, Jeremy Olmsted-Thompson from Google and Chris Short from AWS discuss the exciting challenges SIG Multicluster addresses and how you can get involved.

What Specifically Changes for Developers/DevOps Teams?

Over the past few years, SIG Multicluster has evolved to tackle specific issues arising from managing multiple Kubernetes clusters. A central concern is the communication between workloads distributed across multiple clusters. Previously, the focus was more on anticipating potential problems, whereas now, concrete solutions are being developed.

One example is the MCS API, which enables services in different clusters to communicate with each other. This simplifies interoperability and ensures that the functionalities familiar in Kubernetes are also available in a multicluster environment.

Practical Examples or Use Cases

A common scenario addressed by SIG Multicluster is the need for workloads in different clusters to communicate with each other. Suppose you have an application composed of multiple microservices hosted in different clusters. The MCS API assists in seamlessly connecting these microservices, regardless of their locations.

Another example is the introduction of a cluster ID. Previously, there were efforts to define a unique cluster ID that works across multiple clusters. With the MCS API, the need for such an ID has become clearer, and specific requirements for this ID are being established to ensure it remains unique in various contexts.

By actively participating in SIG Multicluster, developers and DevOps teams can not only benefit from the latest developments but also actively contribute to shaping the future of Kubernetes. At ayedo, we support this initiative and assist in implementing multicluster solutions tailored to your company’s specific needs.

Take the opportunity to be part of this exciting development! Check out the SIG Multicluster resources and discover how you can elevate your Kubernetes implementations to the next level.

Source: Kubernetes Blog