5.17. Kubernetes Scheduler Operator

Purpose

The Kubernetes Scheduler Operator manages and updates the Kubernetes Scheduler deployed on top of OpenShift Container Platform. The Operator is based on the OpenShift Container Platform library-go framework and it is installed with the Cluster Version Operator (CVO).

The Kubernetes Scheduler Operator contains the following components:

  • Operator
  • Bootstrap manifest renderer
  • Installer based on static pods
  • Configuration observer

By default, the Operator exposes Prometheus metrics through the metrics service.

Project

cluster-kube-scheduler-operator

Configuration

The configuration for the Kubernetes Scheduler is the result of merging:

  • a default configuration.
  • an observed configuration from the spec schedulers.config.openshift.io.

All of these are sparse configurations, invalidated JSON snippets which are merged in order to form a valid configuration at the end.