第 6 章 Creating infrastructure machine sets
You can create a machine set to host only infrastructure components. You apply specific Kubernetes labels to these machines and then update the infrastructure components to run on only those machines. These infrastructure nodes are not counted toward the total number of subscriptions that are required to run the environment.
Unlike earlier versions of OpenShift Container Platform, you cannot move the infrastructure components to the master machines. To move the components, you must create a new machine set.
6.1. OpenShift Container Platform infrastructure components
The following infrastructure workloads do not incur OpenShift Container Platform worker subscriptions:
- Kubernetes and OpenShift Container Platform control plane services that run on masters
- The default router
- The integrated container image registry
- The cluster metrics collection, or monitoring service, including components for monitoring user-defined projects
- Cluster aggregated logging
- Service brokers
- Red Hat Quay
- Red Hat OpenShift Container Storage
- Red Hat Advanced Cluster Manager
Any node that runs any other container, pod, or component is a worker node that your subscription must cover.
