feature: Add podgroups statistics

Signed-off-by: JesseStutler <[email protected]>

pkg/cli/podgroup/podgroup.go

@@ -0,0 +1,26 @@
+package podgroup
+
+import "volcano.sh/apis/pkg/apis/scheduling/v1beta1"
+
+type PodGroupStatistics struct {
+	Inqueue   int
+	Pending   int
+	Running   int
+	Unknown   int
+	Completed int
+}
+
+func (pgStats *PodGroupStatistics) StatPodGroupCountsForQueue(pg *v1beta1.PodGroup) {
+	switch pg.Status.Phase {
+	case v1beta1.PodGroupInqueue:
+		pgStats.Inqueue++
+	case v1beta1.PodGroupPending:
+		pgStats.Pending++
+	case v1beta1.PodGroupRunning:
+		pgStats.Running++
+	case v1beta1.PodGroupUnknown:
+		pgStats.Unknown++
+	case v1beta1.PodGroupCompleted:
+		pgStats.Completed++
+	}
+}

pkg/cli/queue/get.go

@@ -28,6 +28,7 @@ import (
 
 	"volcano.sh/apis/pkg/apis/scheduling/v1beta1"
 	"volcano.sh/apis/pkg/client/clientset/versioned"
+	"volcano.sh/volcano/pkg/cli/podgroup"
 )
 
 type getFlags struct {
@@ -63,21 +64,37 @@ func GetQueue(ctx context.Context) error {
 		return err
 	}
 
-	PrintQueue(queue, os.Stdout)
+	// Although the featuregate called CustomResourceFieldSelectors is enabled by default after v1.31, there are still
+	// users using k8s versions lower than v1.31. Therefore we can only get all the podgroups from kube-apiserver
+	// and then filtering them.
+	pgList, err := queueClient.SchedulingV1beta1().PodGroups("").List(ctx, metav1.ListOptions{})
+	if err != nil {
+		return fmt.Errorf("failed to list podgroup for queue %s with err: %v", getQueueFlags.Name, err)
+	}
+
+	pgStats := &podgroup.PodGroupStatistics{}
+	for _, pg := range pgList.Items {
+		if pg.Spec.Queue == getQueueFlags.Name {
+			pgStats.StatPodGroupCountsForQueue(&pg)
+		}
+	}
+
+	PrintQueue(queue, pgStats, os.Stdout)
 
 	return nil
 }
 
 // PrintQueue prints queue information.
-func PrintQueue(queue *v1beta1.Queue, writer io.Writer) {
-	_, err := fmt.Fprintf(writer, "%-25s%-8s%-8s%-8s%-8s%-8s%-8s\n",
-		Name, Weight, State, Inqueue, Pending, Running, Unknown)
+func PrintQueue(queue *v1beta1.Queue, pgStats *podgroup.PodGroupStatistics, writer io.Writer) {
+	_, err := fmt.Fprintf(writer, "%-25s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n",
+		Name, Weight, State, Inqueue, Pending, Running, Unknown, Completed)
 	if err != nil {
 		fmt.Printf("Failed to print queue command result: %s.\n", err)
 	}
-	_, err = fmt.Fprintf(writer, "%-25s%-8d%-8s%-8d%-8d%-8d%-8d\n",
-		queue.Name, queue.Spec.Weight, queue.Status.State, queue.Status.Inqueue,
-		queue.Status.Pending, queue.Status.Running, queue.Status.Unknown)
+
+	_, err = fmt.Fprintf(writer, "%-25s%-8d%-8s%-8d%-8d%-8d%-8d%-8d\n",
+		queue.Name, queue.Spec.Weight, queue.Status.State, pgStats.Inqueue,
+		pgStats.Pending, pgStats.Running, pgStats.Unknown, pgStats.Completed)
 	if err != nil {
 		fmt.Printf("Failed to print queue command result: %s.\n", err)
 	}

pkg/cli/queue/list.go

@@ -28,6 +28,7 @@ import (
 
 	"volcano.sh/apis/pkg/apis/scheduling/v1beta1"
 	"volcano.sh/apis/pkg/client/clientset/versioned"
+	"volcano.sh/volcano/pkg/cli/podgroup"
 )
 
 type listFlags struct {
@@ -53,6 +54,9 @@ const (
 	// Inqueue status of queue
 	Inqueue string = "Inqueue"
 
+	// Completed status of the queue
+	Completed string = "Completed"
+
 	// State is state of queue
 	State string = "State"
 )
@@ -81,22 +85,41 @@ func ListQueue(ctx context.Context) error {
 		fmt.Printf("No resources found\n")
 		return nil
 	}
-	PrintQueues(queues, os.Stdout)
+
+	// Although the featuregate called CustomResourceFieldSelectors is enabled by default after v1.31, there are still
+	// users using k8s versions lower than v1.31. Therefore we can only get all the podgroups from kube-apiserver
+	// and then filtering them.
+	pgList, err := jobClient.SchedulingV1beta1().PodGroups("").List(ctx, metav1.ListOptions{})
+	if err != nil {
+		return fmt.Errorf("failed to list podgroups with err: %v", err)
+	}
+
+	queueStats := make(map[string]*podgroup.PodGroupStatistics, len(queues.Items))
+	for _, queue := range queues.Items {
+		queueStats[queue.Name] = &podgroup.PodGroupStatistics{}
+	}
+
+	for _, pg := range pgList.Items {
+		queueStats[pg.Spec.Queue].StatPodGroupCountsForQueue(&pg)
+	}
+
+	PrintQueues(queues, queueStats, os.Stdout)
 
 	return nil
 }
 
 // PrintQueues prints queue information.
-func PrintQueues(queues *v1beta1.QueueList, writer io.Writer) {
-	_, err := fmt.Fprintf(writer, "%-25s%-8s%-8s%-8s%-8s%-8s%-8s\n",
-		Name, Weight, State, Inqueue, Pending, Running, Unknown)
+func PrintQueues(queues *v1beta1.QueueList, queueStats map[string]*podgroup.PodGroupStatistics, writer io.Writer) {
+	_, err := fmt.Fprintf(writer, "%-25s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n",
+		Name, Weight, State, Inqueue, Pending, Running, Unknown, Completed)
 	if err != nil {
 		fmt.Printf("Failed to print queue command result: %s.\n", err)
 	}
+
 	for _, queue := range queues.Items {
-		_, err = fmt.Fprintf(writer, "%-25s%-8d%-8s%-8d%-8d%-8d%-8d\n",
-			queue.Name, queue.Spec.Weight, queue.Status.State, queue.Status.Inqueue,
-			queue.Status.Pending, queue.Status.Running, queue.Status.Unknown)
+		_, err = fmt.Fprintf(writer, "%-25s%-8d%-8s%-8d%-8d%-8d%-8d%-8d\n",
+			queue.Name, queue.Spec.Weight, queue.Status.State, queueStats[queue.Name].Inqueue, queueStats[queue.Name].Pending,
+			queueStats[queue.Name].Running, queueStats[queue.Name].Unknown, queueStats[queue.Name].Completed)
 		if err != nil {
 			fmt.Printf("Failed to print queue command result: %s.\n", err)
 		}

pkg/controllers/metrics/queue.go

@@ -0,0 +1,93 @@
+package metrics
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+
+	"volcano.sh/apis/pkg/apis/scheduling/v1beta1"
+	"volcano.sh/volcano/pkg/scheduler/metrics"
+)
+
+var (
+	queuePodGroupInqueue = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Subsystem: metrics.VolcanoNamespace,
+			Name:      "queue_pod_group_inqueue_count",
+			Help:      "The number of Inqueue PodGroup in this queue",
+		}, []string{"queue_name"},
+	)
+
+	queuePodGroupPending = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Subsystem: metrics.VolcanoNamespace,
+			Name:      "queue_pod_group_pending_count",
+			Help:      "The number of Pending PodGroup in this queue",
+		}, []string{"queue_name"},
+	)
+
+	queuePodGroupRunning = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Subsystem: metrics.VolcanoNamespace,
+			Name:      "queue_pod_group_running_count",
+			Help:      "The number of Running PodGroup in this queue",
+		}, []string{"queue_name"},
+	)
+
+	queuePodGroupUnknown = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Subsystem: metrics.VolcanoNamespace,
+			Name:      "queue_pod_group_unknown_count",
+			Help:      "The number of Unknown PodGroup in this queue",
+		}, []string{"queue_name"},
+	)
+
+	queuePodGroupCompleted = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Subsystem: metrics.VolcanoNamespace,
+			Name:      "queue_pod_group_completed_count",
+			Help:      "The number of Completed PodGroup in this queue",
+		}, []string{"queue_name"},
+	)
+)
+
+// UpdateQueuePodGroupInqueueCount records the number of Inqueue PodGroup in this queue
+func UpdateQueuePodGroupInqueueCount(queueName string, count int32) {
+	queuePodGroupInqueue.WithLabelValues(queueName).Set(float64(count))
+}
+
+// UpdateQueuePodGroupPendingCount records the number of Pending PodGroup in this queue
+func UpdateQueuePodGroupPendingCount(queueName string, count int32) {
+	queuePodGroupPending.WithLabelValues(queueName).Set(float64(count))
+}
+
+// UpdateQueuePodGroupRunningCount records the number of Running PodGroup in this queue
+func UpdateQueuePodGroupRunningCount(queueName string, count int32) {
+	queuePodGroupRunning.WithLabelValues(queueName).Set(float64(count))
+}
+
+// UpdateQueuePodGroupUnknownCount records the number of Unknown PodGroup in this queue
+func UpdateQueuePodGroupUnknownCount(queueName string, count int32) {
+	queuePodGroupUnknown.WithLabelValues(queueName).Set(float64(count))
+}
+
+// UpdateQueuePodGroupCompletedCount records the number of Completed PodGroup in this queue
+func UpdateQueuePodGroupCompletedCount(queueName string, count int32) {
+	queuePodGroupCompleted.WithLabelValues(queueName).Set(float64(count))
+}
+
+// DeleteQueueMetrics delete all metrics related to the queue
+func DeleteQueueMetrics(queueName string) {
+	queuePodGroupInqueue.DeleteLabelValues(queueName)
+	queuePodGroupPending.DeleteLabelValues(queueName)
+	queuePodGroupRunning.DeleteLabelValues(queueName)
+	queuePodGroupUnknown.DeleteLabelValues(queueName)
+	queuePodGroupCompleted.DeleteLabelValues(queueName)
+}
+
+func UpdateQueueMetrics(queueName string, queueStatus *v1beta1.QueueStatus) {
+	UpdateQueuePodGroupPendingCount(queueName, queueStatus.Pending)
+	UpdateQueuePodGroupRunningCount(queueName, queueStatus.Running)
+	UpdateQueuePodGroupUnknownCount(queueName, queueStatus.Unknown)
+	UpdateQueuePodGroupInqueueCount(queueName, queueStatus.Inqueue)
+	UpdateQueuePodGroupCompletedCount(queueName, queueStatus.Completed)
+}