Make ConcurrentResourceClaimSyncs configurable (#134701)

* DRA resource claim controller: configurable number of workers

It might never be necessary to change the default, but it is hard to be sure.
It's better to have the option, just in case.

* generate files

* resourceclaimcontroller: normalize validation error message

* Update cmd/kube-controller-manager/app/options/resourceclaimcontroller.go

Co-authored-by: Jordan Liggitt <jordan@liggitt.net>

---------

Co-authored-by: Patrick Ohly <patrick.ohly@intel.com>
Co-authored-by: Jordan Liggitt <jordan@liggitt.net>

Kubernetes-commit: a816a7b1d83970f2fa70fa544f80585a4b44268f

Author: anson627

config/v1alpha1/types.go

@@ -170,6 +170,8 @@ type KubeControllerManagerConfiguration struct {
 	ValidatingAdmissionPolicyStatusController ValidatingAdmissionPolicyStatusControllerConfiguration
 	// DeviceTaintEvictionControllerConfiguration contains elements configuring the device taint eviction controller.
 	DeviceTaintEvictionController DeviceTaintEvictionControllerConfiguration
+	// ResourceClaimControllerConfiguration contains elements configuring the resource claim controller.
+	ResourceClaimController ResourceClaimControllerConfiguration
 }
 
 // AttachDetachControllerConfiguration contains elements describing AttachDetachController.
@@ -499,3 +501,12 @@ type DeviceTaintEvictionControllerConfiguration struct {
 	// The default is 10.
 	ConcurrentSyncs int32
 }
+
+// ResourceClaimControllerConfiguration contains elements configuring the resource claim controller.
+type ResourceClaimControllerConfiguration struct {
+	// ConcurrentSyncs is the number of operations (deleting a pod, updating a ResourcClaim status, etc.)
+	// that will be done concurrently. Larger number = processing, but more CPU (and network) load.
+	//
+	// The default is 50.
+	ConcurrentSyncs int32
+}

config/v1alpha1/zz_generated.deepcopy.go

@@ -7,7 +7,7 @@ go 1.25.0
 godebug default=go1.25
 
 require (
-	k8s.io/apimachinery v0.0.0-20251223142228-10257273d7e7
+	k8s.io/apimachinery v0.0.0-20260107193351-2936fea9b085
 	k8s.io/cloud-provider v0.0.0-20251223151909-65aef96cfa49
 	k8s.io/controller-manager v0.0.0-20251223151716-5616aa98c452
 )
@@ -25,11 +25,15 @@ require (
 	golang.org/x/text v0.31.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	k8s.io/component-base v0.0.0-20251223144127-af45865c7961 // indirect
+	k8s.io/component-base v0.0.0-20251226184832-b8fb4e3d1155 // indirect
 	k8s.io/klog/v2 v2.130.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 // indirect
 	k8s.io/utils v0.0.0-20251219084037-98d557b7f1e7 // indirect
 	sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
 	sigs.k8s.io/randfill v1.0.0 // indirect
 	sigs.k8s.io/structured-merge-diff/v6 v6.3.1 // indirect
 )
+
+replace k8s.io/apiserver => k8s.io/apiserver v0.0.0-20260107185318-a60c92c1b688
+
+replace k8s.io/client-go => k8s.io/client-go v0.0.0-20260107183400-52d9854c37fe

config/v1alpha1/zz_generated.model_name.go

@@ -55,12 +55,12 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 k8s.io/api v0.0.0-20251223142543-49b7fdb8413e h1:LzUvqdOqvu9sv5CRELRFmZyOc0OZpkffmQpQStncYyo=
 k8s.io/api v0.0.0-20251223142543-49b7fdb8413e/go.mod h1:6bJjOS8ww83H+5m1wb7JJw1NHEOZiCabMdNDjRmR2NY=
-k8s.io/apimachinery v0.0.0-20251223142228-10257273d7e7 h1:6PdG2x/Z3kYAoRAoiHaJ/DzTgMdY/E73+GKxrMWJvok=
-k8s.io/apimachinery v0.0.0-20251223142228-10257273d7e7/go.mod h1:4mERM8sOoVa6HQ0eN/MFv1Q18wFYr64mgZRlZqiwnX0=
+k8s.io/apimachinery v0.0.0-20260107193351-2936fea9b085 h1:X3bHuH5ZqP/J26+Oc7sG8nzCx3Iu8MJZD7YC+UrxE3E=
+k8s.io/apimachinery v0.0.0-20260107193351-2936fea9b085/go.mod h1:4mERM8sOoVa6HQ0eN/MFv1Q18wFYr64mgZRlZqiwnX0=
 k8s.io/cloud-provider v0.0.0-20251223151909-65aef96cfa49 h1:qJVchgvEyNlBWiEuoYhts/eZvd4j895XCaYOr+BE4kg=
 k8s.io/cloud-provider v0.0.0-20251223151909-65aef96cfa49/go.mod h1:Cfgs4rD04FR7X/I6A5ImoftkOJlBgx4uyywqXTbuMtg=
-k8s.io/component-base v0.0.0-20251223144127-af45865c7961 h1:EKm+sz3eHar9BFS6EtHmL9+Kf00CrgMHbZ2bYifBCHo=
-k8s.io/component-base v0.0.0-20251223144127-af45865c7961/go.mod h1:ZIC9uvuLPK/4xNNbdRo4OWHw4y6NeD94loNfGDgJqUY=
+k8s.io/component-base v0.0.0-20251226184832-b8fb4e3d1155 h1:AQMc+yP616jEhViFYYZuHtLelMvWpCivQU+sn0Memns=
+k8s.io/component-base v0.0.0-20251226184832-b8fb4e3d1155/go.mod h1:ZIC9uvuLPK/4xNNbdRo4OWHw4y6NeD94loNfGDgJqUY=
 k8s.io/controller-manager v0.0.0-20251223151716-5616aa98c452 h1:g+qr9hSqlbv/lAQvpOiVnz39cQC4tsTqfZ/eXwdEYHU=
 k8s.io/controller-manager v0.0.0-20251223151716-5616aa98c452/go.mod h1:9kGsYLWhV8hbDqYS7vtbCf7QYYl7ttv8Kaw1WytMmAY=
 k8s.io/klog/v2 v2.130.1 h1:n9Xl7H1Xvksem4KFG4PYbdQCQxqc/tTUyrgXaOhHSzk=