The Cluster Inventory API is a part of SIG Multicluster, and this repository serves as the foundation for developing a standardized, robust framework for multi-cluster management in a cloud-native environment.
The Cluster Inventory API aims to provide a consistent and automated approach for applications, frameworks, and toolsets to discover and interact with multiple Kubernetes clusters. The concept of Cluster Inventory is akin to service discovery in a microservices architecture. It allows multi-cluster applications to dynamically discover available clusters and respond to various cluster lifecycle events. Such events include auto-scaling, upgrades, failures, and connectivity issues. This automated inventory management not only facilitates operational efficiency but also supports the integration of diverse multi-cluster management solutions. See the initial proposal in the documentation for more details.
Within the broader Cluster Inventory, the first major component we are introducing is the ClusterProfile API. A Cluster Profile is essentially an individual member of the Cluster Inventory that details the properties and status of a cluster. This API proposes a universal, standardized interface that defines how cluster information should be presented and interacted with across different platforms and implementations.
The ClusterProfile API is designed to establish a shared interface for cluster inventory,
laying the groundwork for multi-cluster tooling by providing a foundational component.
Here are several key benefits and purposes of adopting the ClusterProfile API:
- Standardization: By defining a standard for status reporting and cluster properties, the API facilitates a common understanding that can be shared across various tools and platforms.
- Ease of Integration: Consumers of the API, such as multi-cluster workload schedulers and GitOps tools (e.g., ArgoCD, Kueue), can integrate without needing to navigate the specific implementation details of different cluster management projects.
- Vendor Neutrality: The API provides a vendor-neutral integration point, allowing operations tools and external consumers to define and manage clusters across different cloud environments uniformly.
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