CNStack 2.0 introduces a cloud‑native multi‑cluster service built on Open Cluster Management, offering unified registration, lifecycle management, resource distribution, multi‑tenant authentication, and high‑availability cross‑cluster communication for Kubernetes clusters across clouds.
The Open Cluster Management (OCM) project releases v0.9.0 with enhanced security, service exposure, plugin configurability, API updates, and outlines upcoming features like independent control‑plane deployment, ArgoCD pull‑mode integration, placement strategies, and edge‑scenario support.
This article explains how Open Cluster Management's Placement API selects target clusters for workloads in multi‑cluster Kubernetes environments, covering ManagedClusterSet concepts, Placement spec fields, predicate filtering, prioritizer policies, dynamic scoring, and practical YAML examples that demonstrate weight adjustments and best‑practice scenarios.
The article outlines the latest OCM 0.4.0 release—including addon registration, a new Placement API with YAML examples, the alpha‑stage clusteradm CLI—while previewing the 0.5.0 roadmap, integrations with KubeVela, ArgoCD, Clusternet, and real‑world deployments on Alibaba Cloud.
Open Cluster Management (OCM) is an open‑source, hub‑agent solution that simplifies lifecycle, configuration, and policy management for multiple Kubernetes clusters across hybrid and multi‑cloud environments, detailing its architecture, core primitives, advantages, and real‑world deployments by Ant Group and Alibaba Cloud.
