MultiCluster on OpenShift

End-to-end guides for setting up Istio multi-cluster meshes on OpenShift with ACM and Kiali.

These tutorials walk through setting up Istio multi-cluster meshes on OpenShift using Red Hat Advanced Cluster Management (ACM), the Cluster Observability Operator (COO), and Kiali. ACM provides fleet management and centralized metrics aggregation via Thanos. COO provides Perses metrics dashboards and the distributed tracing console plugin for Tempo, both integrated into the OpenShift console. Each guide builds on the previous one — start with the hub/spoke guide and follow the sequence.


MultiCluster on OpenShift

Install ACM, import a spoke cluster, deploy OSSM 3 with ambient and sidecar demo apps, and configure Kiali to query aggregated metrics from ACM’s central Thanos.

Multi-Primary Mesh

Extend the single-cluster mesh from the hub/spoke guide into a true multi-primary Istio mesh by adding a second spoke cluster, with cross-cluster endpoint discovery and East-West gateways.

Dashboards and Tracing

Add Perses metrics dashboards and Tempo distributed tracing to the multi-primary mesh, both backed by aggregated multi-cluster data.

Last modified July 10, 2026: update ACM config docs (#991) (9d782fc)