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fix: apply node affinity to runner pods #215

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Merged
fuweid merged 1 commit into from
Oct 30, 2025
Merged

fix: apply node affinity to runner pods #215

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4 changes: 3 additions & 1 deletion cmd/kperf/commands/runnergroup/run.go
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@ var runCommand = cli.Command{
},
cli.StringSliceFlag{
Name: "affinity",
Usage: "Deploy server to the node with a specific labels (FORMAT: KEY=VALUE[,VALUE])",
Usage: "Deploy server and runners to the node with a specific labels (FORMAT: KEY=VALUE[,VALUE])",
},
cli.IntFlag{
Name: "runner-verbosity",
Expand Down Expand Up @@ -76,6 +76,8 @@ var runCommand = cli.Command{
return fmt.Errorf("only support one runner group right now. will support it after https://github.com/Azure/kperf/issues/25")
}

specs[0].NodeAffinity = affinityLabels

kubeCfgPath := cliCtx.GlobalString("kubeconfig")
return runner.CreateRunnerGroupServer(context.Background(),
kubeCfgPath,
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18 changes: 18 additions & 0 deletions runner/group/handler.go
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Expand Up @@ -374,6 +374,11 @@ func (h *Handler) buildBatchJobObject(uploadURL string) *batchv1.Job {
job.OwnerReferences = append(job.OwnerReferences, *h.ownerRef)
}

job.Spec.Template.ObjectMeta = metav1.ObjectMeta{
Labels: map[string]string{
"app-name-job": h.name,
},
}
job.Spec.Template.Spec = corev1.PodSpec{
Affinity: &corev1.Affinity{},
Containers: []corev1.Container{
Expand Down Expand Up @@ -430,6 +435,19 @@ func (h *Handler) buildBatchJobObject(uploadURL string) *batchv1.Job {
},
},
RestartPolicy: corev1.RestartPolicyNever,
TopologySpreadConstraints: []corev1.TopologySpreadConstraint{
{
MaxSkew: 1,
TopologyKey: "kubernetes.io/hostname",
WhenUnsatisfiable: corev1.ScheduleAnyway,
LabelSelector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"app-name-job": h.name,
},
},
},
},

Volumes: []corev1.Volume{
{
Name: "config",
Expand Down
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