WAS: Controller Integration APIs

[mm4tt]

Enhancement Description

• One-line enhancement description (can be used as a release note): Provide standard API building blocks, shared libraries, and guidelines enabling workload controllers to design native APIs for consuming Workload-Aware Scheduling (WAS) features.
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/blob/master/keps/sig-scheduling/6089-was-controller-apis/README.md
• Discussion Link:
  • Initial Design Document: https://docs.google.com/document/d/1VG7Zto9JYuPG4Anb01WMRryJlfV6met0jgob3T2NjZ4/edit?tab=t.0#heading=h.3s8c0yl3azl9
  • Discussed during WAS integration sync meeting on March 2nd, 2026: https://docs.google.com/document/d/1XSPdK4L3zkAFhAZ3hBQJr2k7JX9CpGD7NeQfujM1PT4/edit?tab=t.0#bookmark=id.nqpz70rt46z
• PRs by stage and milestone:
  • Alpha - v1.37
    • KEP (k/enhancements) update PR(s):
      • KEP 6089: Workload Aware Scheduling Controller APIs #6092
    • Code (k/k) update PR(s):
      • [WAS] KEP-6089: Add Workload config Building Blocks APIs kubernetes#139556
      • [WAS] KEP-6089: Add workloadbuilder library to staging/component-helper kubernetes#139781
      • [WAS] KEP-6089: Support Composite PodGroup for Building blocks APIs and workloadbuilder kubernetes#140717
    • Docs (k/website) update PR(s):
      • [WAS] KEP-6089: Add docs for Workload building blocks APIs and workloadbuilder library website#56325
      • Add Workload Aware Scheduling blog post for 1.37 website#56215
• Beta - v1.38
  • KEP (k/enhancements) update PR(s):
    • kep-6089: promote Workload Aware Scheduling Controller APIs to Beta #6342
  • Code (k/k) update PR(s):
  • Docs (k/website) update(s):

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

/sig scheduling

[k8s-ci-robot]

@mm4tt: The label(s) area/workload-aware-scheduling cannot be applied, because the repository doesn't have them.

Details

In response to this:

Enhancement Description

• One-line enhancement description (can be used as a release note): Provide standard API building blocks, shared libraries, and guidelines enabling workload controllers to design native APIs for consuming Workload-Aware Scheduling (WAS) features.
• Kubernetes Enhancement Proposal: TODO
• Discussion Link:
  • Initial Design Document: https://docs.google.com/document/d/1VG7Zto9JYuPG4Anb01WMRryJlfV6met0jgob3T2NjZ4/edit?tab=t.0#heading=h.3s8c0yl3azl9
  • Discussed during WAS integration sync meeting on March 2nd, 2026: https://docs.google.com/document/d/1XSPdK4L3zkAFhAZ3hBQJr2k7JX9CpGD7NeQfujM1PT4/edit?tab=t.0#bookmark=id.nqpz70rt46z
• PRs by stage and milestone:
• Alpha - v1.37
  • KEP (k/enhancements) update PR(s):
  • Code (k/k) update PR(s):
  • Docs (k/website) update PR(s):

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

/sig scheduling
/area workload-aware-scheduling

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[soltysh]

/sig apps

[macsko]

/milestone v1.37

[kannon92]

/area workload-aware