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Overview

This folder holds the node resources allocatable plugin implemented as discussed in NodeResourcesLeastAllocatable as score plugin.

Maturity Level

  • 💡 Sample (for demonstrating and inspiring purpose)
  • 👶 Alpha (used in companies for pilot projects)
  • 👦 Beta (used in companies and developed actively)
  • 👨 Stable (used in companies for production workloads)

Node Resources Allocatable Plugin

Resource Weights

Resources are assigned weights based on the plugin args resources param. The base units for CPU are millicores, while the base units for memory are bytes.

Example config:

apiVersion: kubescheduler.config.k8s.io/v1beta2
kind: KubeSchedulerConfiguration
leaderElection:
  leaderElect: false
clientConnection:
  kubeconfig: "REPLACE_ME_WITH_KUBE_CONFIG_PATH"
profiles:
- schedulerName: default-scheduler
  plugins:
    score:
      enabled:
      - name: NodeResourcesAllocatable
  pluginConfig:
  - name: NodeResourcesAllocatable
    args:
      mode: Least
      resources:
      - name: cpu
        weight: 1000000
      - name: memory
        weight: 1

Node Resources Least Allocatable

If plugin args specify the priority param "Least", then nodes with the least allocatable resources are scored highest.

Node Resources Most Allocatable

If plugin args specify the priority param "Most", then nodes with the most allocatable resources are scored highest.