Enhancement Description

• One-line enhancement description (can be used as a release note): The original dynamic resource allocation (DRA) uses claim and class parameters that are opaque to Kubernetes. With structured parameters, kube-scheduler can handle and Cluster Autoscaler can simulate claim allocation themselves without relying on a third-party driver.

• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/4381-dra-structured-parameters/

• Discussion Link: Batch WG meeting 20231207, DRA intro and plan in that meeting

• Primary contact (assignee): @pohly

• Responsible SIGs: SIG Node

• Enhancement target (which target equals to which milestone):

  • Alpha release target (x.y): 1.30-1.31
  • Beta release target (x.y): 1.32-1.33
  • Stable release target (x.y): 1.34

• Alpha in 1.30

  • KEP (k/enhancements) update PR(s): KEP 4381: add structured parameters for dynamic resource allocation #4384
  • Code (k/k) update PR(s): DRA: structured parameters kubernetes#123516
  • Docs (k/website) update PR(s): DRA in Kubernetes 1.30: adds structured parameters website#45287

• Alpha in 1.31

  • KEP (k/enhancements) update PR(s): KEP-4381: DRA update for 1.31 #4709
  • Code (k/k) update PR(s): DRA for 1.31 kubernetes#125488
  • Docs (k/website) update PR(s): DRA documentation for 1.31 website#46816

• Beta in 1.32

  • KEP (k/enhancements) update PR(s): KEP-4381: DRA: PRR and API for beta of structured parameters in 1.32 #4869
  • Code (k/k) update PR(s):
    • DRA resourceclaims: maintain metric of total and allocated claims kubernetes#127661
    • DRA API: AdminAccess in DeviceRequestAllocationResult + DRAAdminAccess feature gate kubernetes#127266
    • DRA API: implement CEL cost limit kubernetes#128101
    • Kubelet: add DRA latency metrics kubernetes#127146
    • DRA resourceclaims: maintain metric of total and allocated claims kubernetes#127661
    • DRA 1.32 API: promotion to beta kubernetes#127511
  • Docs (k/website) update(s): DRA 1.32: beta website#48330
  • Known issues where fixes won't be backported:
    • DRA resource claim controller: fails to clean up deleted ResourceClaims on startup kubernetes#132334

• Beta in 1.33

  • KEP (k/enhancements) update PR(s): KEP-4381: Update GA graduation criteria #5160
  • Code (k/k) update PR(s):
    • DRA: add user rbac kubernetes#130738
  • Docs (k/website) update(s): none planned
  • Known issues where fixes won't be backported:
    • DRA resource claim controller: fails to clean up deleted ResourceClaims on startup kubernetes#132334

• Stable in 1.34 (enabled by default, not locked to default)

  • KEP (k/enhancements) update PR(s): KEP 4381: DRA structured parameters: updates, promotion to GA #5333
  • Code (k/k) update PR(s):
    • DRA kubelet: add dra_resource_claims_in_use gauge vector kubernetes#131641
    • DRA API: remove obsolete types from v1alpha3 kubernetes#132000
    • DRA scheduler: implement filter timeout kubernetes#132033
    • DRA: automated upgrade/downgrade testing kubernetes#132295
    • DRA: Introduce a helper function producing standardized 'resource.kubernetes.io/pcieRoot' device attributes for DRA drivers kubernetes#132296
    • DRA kubelet: remove v1alpha4 kubernetes#132574
    • DRA resourceslice controller: fix recreation after quick delete kubernetes#132683
    • DRA kubelet: add v1 gRPC kubernetes#132700
    • DRA API: graduation to GA kubernetes#132706
    • DRA E2E: test mixture of extended resources + ResourceClaim kubernetes#132931
  • Docs (k/website) update(s): DRA: core update for 1.34 website#51483

• Stable in 1.35 (enabled by default, locked)

  • KEP (k/enhancements) update PR(s): KEP-4381: DRA: structured parameters update for 1.35 #5622
  • Code (k/k) update PR(s):
    • DRA: CRUD conformance tests kubernetes#133747
    • Promote DRA e2e CRUD tests to Conformance kubernetes#134439
    • make v1 resource version first priority in resource kubernetes#133876
    • DRA: lock to default-on kubernetes#134452
  • Docs (k/website) update(s): Document DRA core as locked to enabled website#52881