Custom Scheduler Controller

This repository contains the implementation of the custom scheduler controller component. This component works with the extended Knative Serving implementation. When deployedin a cluster that runs the extended Knative Serving, it will handle the logic for the scheduling of pods running user workload.

The logic is found in the customscheduler_controller.go file. It handles:

• Finding of pods to schedule
• Reading of scheduler configuration, including
  • Scheduler name and namespace within the cluster
  • Reading custom metrics defined by the user
  • Reading the parameters defined by the user
• Executing custom metrics defined by the user
• Passing of custom metrics, parameters, and cluster info to the external scheduling algorithm
• Retrieving the scheduling decision and binding the pod accordingly.

Example external scheduler implementation

The repository also contains examples for the deployment of a custom scheduling algorithm that works with the controller logic to produce scheduling decisions.

Quick Start

To quickly get started, deploy the extended Knative Serving implementation using the quickstart scripts provided in its repository. Then deploy the custom scheduler by executing the deploy.sh script.