Hub UI ​

Hub UI is to manage multiple cluster from a single point. In this guide we will see how you can do that

Hub & Spoke Model

What is OCM? ​

Open Cluster Management (OCM) is a platform for managing multiple Kubernetes clusters from a single control point.

Think of it like this:

  • You run multiple stores across different cities (clusters)
  • You manage them from a central office (hub cluster)

OCM acts as that central office, allowing you to:

  • Monitor clusters
  • Apply configurations
  • Manage workloads
  • Enforce policies across environments

Core Terminology ​

Hub Cluster ​

The central control plane that:

  • Manages other clusters
  • Stores cluster states
  • Distributes applications and policies

Spoke Cluster ​

A cluster connected to a hub

Analogy:

  • Hub = center of a wheel
  • Spokes = connected clusters

Spoke clusters:

  • Run workloads
  • Receive policies/configurations from the hub

Subscription ​

Defines what applications/configurations should be deployed to clusters.

Policy ​

Rules enforced across clusters, such as:

  • Security settings
  • Network configurations
  • Compliance rules
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