Expose Flavors in LocalQueue Status.

apis/kueue/v1beta1/localqueue_types.go

@@ -88,6 +88,12 @@ type LocalQueueStatus struct {
 	// +kubebuilder:validation:MaxItems=16
 	// +optional
 	FlavorUsage []LocalQueueFlavorUsage `json:"flavorUsage"`
+
+	// availableFlavors lists all currently available ResourceFlavors.
+	//
+	// +listType=set
+	// +optional
+	AvailableFlavors []ResourceFlavorReference `json:"availableFlavors"`
 }
 
 const (

charts/kueue/templates/crd/kueue.x-k8s.io_localqueues.yaml

@@ -106,6 +106,15 @@ spec:
                   admitted to a ClusterQueue and that haven't finished yet.
                 format: int32
                 type: integer
+              availableFlavors:
+                description: availableFlavors lists all currently available ResourceFlavors.
+                items:
+                  description: ResourceFlavorReference is the name of the ResourceFlavor.
+                  maxLength: 253
+                  pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
+                  type: string
+                type: array
+                x-kubernetes-list-type: set
               conditions:
                 description: |-
                   Conditions hold the latest available observations of the LocalQueue

config/components/crd/bases/kueue.x-k8s.io_localqueues.yaml

@@ -91,6 +91,15 @@ spec:
                   admitted to a ClusterQueue and that haven't finished yet.
                 format: int32
                 type: integer
+              availableFlavors:
+                description: availableFlavors lists all currently available ResourceFlavors.
+                items:
+                  description: ResourceFlavorReference is the name of the ResourceFlavor.
+                  maxLength: 253
+                  pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
+                  type: string
+                type: array
+                x-kubernetes-list-type: set
               conditions:
                 description: |-
                   Conditions hold the latest available observations of the LocalQueue

pkg/cache/cache.go

@@ -29,6 +29,7 @@ import (
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/klog/v2"
+	"k8s.io/utils/set"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 
@@ -668,6 +669,7 @@ type LocalQueueUsageStats struct {
 	ReservingWorkloads int
 	AdmittedResources  []kueue.LocalQueueFlavorUsage
 	AdmittedWorkloads  int
+	AvailableFlavors   []kueue.ResourceFlavorReference
 }
 
 func (c *Cache) LocalQueueUsage(qObj *kueue.LocalQueue) (*LocalQueueUsageStats, error) {
@@ -683,11 +685,17 @@ func (c *Cache) LocalQueueUsage(qObj *kueue.LocalQueue) (*LocalQueueUsageStats,
 		return nil, errQNotFound
 	}
 
+	availableFlavors := set.New[kueue.ResourceFlavorReference]()
+	for _, rg := range cqImpl.ResourceGroups {
+		availableFlavors.Insert(rg.Flavors...)
+	}
+
 	return &LocalQueueUsageStats{
 		ReservedResources:  filterLocalQueueUsage(qImpl.usage, cqImpl.ResourceGroups),
 		ReservingWorkloads: qImpl.reservingWorkloads,
 		AdmittedResources:  filterLocalQueueUsage(qImpl.admittedUsage, cqImpl.ResourceGroups),
 		AdmittedWorkloads:  qImpl.admittedWorkloads,
+		AvailableFlavors:   availableFlavors.SortedList(),
 	}, nil
 }
 

pkg/controller/core/localqueue_controller.go

@@ -328,6 +328,7 @@ func (r *LocalQueueReconciler) UpdateStatusIfChanged(
 	queue.Status.AdmittedWorkloads = int32(stats.AdmittedWorkloads)
 	queue.Status.FlavorsReservation = stats.ReservedResources
 	queue.Status.FlavorUsage = stats.AdmittedResources
+	queue.Status.AvailableFlavors = stats.AvailableFlavors
 	if len(conditionStatus) != 0 && len(reason) != 0 && len(msg) != 0 {
 		meta.SetStatusCondition(&queue.Status.Conditions, metav1.Condition{
 			Type:               kueue.LocalQueueActive,

site/content/en/docs/reference/kueue.v1beta1.md

@@ -1289,6 +1289,13 @@ workloads assigned to this LocalQueue.</p>
 workloads assigned to this LocalQueue.</p>
 </td>
 </tr>
+<tr><td><code>availableFlavors</code><br/>
+<a href="#kueue-x-k8s-io-v1beta1-ResourceFlavorReference"><code>[]ResourceFlavorReference</code></a>
+</td>
+<td>
+   <p>availableFlavors lists all currently available ResourceFlavors.</p>
+</td>
+</tr>
 </tbody>
 </table>
 
@@ -1619,6 +1626,8 @@ this time would be reset to null.</p>
 
 - [LocalQueueFlavorUsage](#kueue-x-k8s-io-v1beta1-LocalQueueFlavorUsage)
 
+- [LocalQueueStatus](#kueue-x-k8s-io-v1beta1-LocalQueueStatus)
+
 - [PodSetAssignment](#kueue-x-k8s-io-v1beta1-PodSetAssignment)
 
 

test/integration/controller/core/localqueue_controller_test.go

@@ -91,32 +91,60 @@ var _ = ginkgo.Describe("Queue controller", ginkgo.Ordered, ginkgo.ContinueOnFai
 	})
 
 	ginkgo.It("Should update conditions when clusterQueues that its localQueue references are updated", func() {
-		gomega.Eventually(func() []metav1.Condition {
+		gomega.Eventually(func() kueue.LocalQueueStatus {
 			var updatedQueue kueue.LocalQueue
 			gomega.Expect(k8sClient.Get(ctx, client.ObjectKeyFromObject(queue), &updatedQueue)).To(gomega.Succeed())
-			return updatedQueue.Status.Conditions
-		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo([]metav1.Condition{
-			{
-				Type:    kueue.LocalQueueActive,
-				Status:  metav1.ConditionFalse,
-				Reason:  "ClusterQueueDoesNotExist",
-				Message: "Can't submit new workloads to clusterQueue",
+			return updatedQueue.Status
+		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo(kueue.LocalQueueStatus{
+			Conditions: []metav1.Condition{
+				{
+					Type:    kueue.LocalQueueActive,
+					Status:  metav1.ConditionFalse,
+					Reason:  "ClusterQueueDoesNotExist",
+					Message: "Can't submit new workloads to clusterQueue",
+				},
 			},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 
+		emptyUsage := []kueue.LocalQueueFlavorUsage{
+			{
+				Name: flavorModelC,
+				Resources: []kueue.LocalQueueResourceUsage{
+					{
+						Name:  resourceGPU,
+						Total: resource.MustParse("0"),
+					},
+				},
+			},
+			{
+				Name: flavorModelD,
+				Resources: []kueue.LocalQueueResourceUsage{
+					{
+						Name:  resourceGPU,
+						Total: resource.MustParse("0"),
+					},
+				},
+			},
+		}
+
 		ginkgo.By("Creating a clusterQueue")
 		gomega.Expect(k8sClient.Create(ctx, clusterQueue)).To(gomega.Succeed())
-		gomega.Eventually(func() []metav1.Condition {
+		gomega.Eventually(func() kueue.LocalQueueStatus {
 			var updatedQueue kueue.LocalQueue
 			gomega.Expect(k8sClient.Get(ctx, client.ObjectKeyFromObject(queue), &updatedQueue)).To(gomega.Succeed())
-			return updatedQueue.Status.Conditions
-		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo([]metav1.Condition{
-			{
-				Type:    kueue.LocalQueueActive,
-				Status:  metav1.ConditionFalse,
-				Reason:  "ClusterQueueIsInactive",
-				Message: "Can't submit new workloads to clusterQueue",
+			return updatedQueue.Status
+		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo(kueue.LocalQueueStatus{
+			Conditions: []metav1.Condition{
+				{
+					Type:    kueue.LocalQueueActive,
+					Status:  metav1.ConditionFalse,
+					Reason:  "ClusterQueueIsInactive",
+					Message: "Can't submit new workloads to clusterQueue",
+				},
 			},
+			FlavorsReservation: emptyUsage,
+			FlavorUsage:        emptyUsage,
+			AvailableFlavors:   []kueue.ResourceFlavorReference{"model-c", "model-d"},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 
 		ginkgo.By("Creating resourceFlavors")
@@ -135,31 +163,38 @@ var _ = ginkgo.Describe("Queue controller", ginkgo.Ordered, ginkgo.ContinueOnFai
 				Message: "Can admit new workloads",
 			},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
-		gomega.Eventually(func() []metav1.Condition {
+		gomega.Eventually(func() kueue.LocalQueueStatus {
 			var updatedQueue kueue.LocalQueue
 			gomega.Expect(k8sClient.Get(ctx, client.ObjectKeyFromObject(queue), &updatedQueue)).To(gomega.Succeed())
-			return updatedQueue.Status.Conditions
-		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo([]metav1.Condition{
-			{
-				Type:    kueue.LocalQueueActive,
-				Status:  metav1.ConditionTrue,
-				Reason:  "Ready",
-				Message: "Can submit new workloads to clusterQueue",
+			return updatedQueue.Status
+		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo(kueue.LocalQueueStatus{
+			Conditions: []metav1.Condition{
+				{
+					Type:    kueue.LocalQueueActive,
+					Status:  metav1.ConditionTrue,
+					Reason:  "Ready",
+					Message: "Can submit new workloads to clusterQueue",
+				},
 			},
+			FlavorsReservation: emptyUsage,
+			FlavorUsage:        emptyUsage,
+			AvailableFlavors:   []kueue.ResourceFlavorReference{"model-c", "model-d"},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 
 		ginkgo.By("Deleting a clusterQueue")
 		gomega.Expect(k8sClient.Delete(ctx, clusterQueue)).To(gomega.Succeed())
-		gomega.Eventually(func() []metav1.Condition {
+		gomega.Eventually(func() kueue.LocalQueueStatus {
 			var updatedQueue kueue.LocalQueue
 			gomega.Expect(k8sClient.Get(ctx, client.ObjectKeyFromObject(queue), &updatedQueue)).To(gomega.Succeed())
-			return updatedQueue.Status.Conditions
-		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo([]metav1.Condition{
-			{
-				Type:    kueue.LocalQueueActive,
-				Status:  metav1.ConditionFalse,
-				Reason:  "ClusterQueueDoesNotExist",
-				Message: "Can't submit new workloads to clusterQueue",
+			return updatedQueue.Status
+		}, util.Timeout, util.Interval).Should(gomega.BeComparableTo(kueue.LocalQueueStatus{
+			Conditions: []metav1.Condition{
+				{
+					Type:    kueue.LocalQueueActive,
+					Status:  metav1.ConditionFalse,
+					Reason:  "ClusterQueueDoesNotExist",
+					Message: "Can't submit new workloads to clusterQueue",
+				},
 			},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 	})
@@ -239,6 +274,7 @@ var _ = ginkgo.Describe("Queue controller", ginkgo.Ordered, ginkgo.ContinueOnFai
 			},
 			FlavorsReservation: emptyUsage,
 			FlavorUsage:        emptyUsage,
+			AvailableFlavors:   []kueue.ResourceFlavorReference{"model-c", "model-d"},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 
 		ginkgo.By("Setting the workloads quota reservation")
@@ -289,6 +325,7 @@ var _ = ginkgo.Describe("Queue controller", ginkgo.Ordered, ginkgo.ContinueOnFai
 			},
 			FlavorsReservation: fullUsage,
 			FlavorUsage:        emptyUsage,
+			AvailableFlavors:   []kueue.ResourceFlavorReference{"model-c", "model-d"},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 
 		ginkgo.By("Setting the workloads admission checks")
@@ -314,6 +351,7 @@ var _ = ginkgo.Describe("Queue controller", ginkgo.Ordered, ginkgo.ContinueOnFai
 			},
 			FlavorsReservation: fullUsage,
 			FlavorUsage:        fullUsage,
+			AvailableFlavors:   []kueue.ResourceFlavorReference{"model-c", "model-d"},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 
 		ginkgo.By("Finishing workloads")
@@ -333,6 +371,7 @@ var _ = ginkgo.Describe("Queue controller", ginkgo.Ordered, ginkgo.ContinueOnFai
 			},
 			FlavorsReservation: emptyUsage,
 			FlavorUsage:        emptyUsage,
+			AvailableFlavors:   []kueue.ResourceFlavorReference{"model-c", "model-d"},
 		}, util.IgnoreConditionTimestampsAndObservedGeneration))
 	})
 })