scale test service account token projection in kubemark

test/utils/runners.go

@@ -172,6 +172,8 @@ type RCConfig struct {
 	// Names of the secrets and configmaps to mount.
 	SecretNames    []string
 	ConfigMapNames []string
+
+	ServiceAccountTokenProjections int
 }
 
 func (rc *RCConfig) RCConfigLog(fmt string, args ...interface{}) {
@@ -322,6 +324,10 @@ func (config *DeploymentConfig) create() error {
 		attachConfigMaps(&deployment.Spec.Template, config.ConfigMapNames)
 	}
 
+	for i := 0; i < config.ServiceAccountTokenProjections; i++ {
+		attachServiceAccountTokenProjection(&deployment.Spec.Template, fmt.Sprintf("tok-%d", i))
+	}
+
 	config.applyTo(&deployment.Spec.Template)
 
 	if err := CreateDeploymentWithRetries(config.Client, config.Namespace, deployment); err != nil {
@@ -1241,6 +1247,57 @@ func attachConfigMaps(template *v1.PodTemplateSpec, configMapNames []string) {
 	template.Spec.Containers[0].VolumeMounts = mounts
 }
 
+func attachServiceAccountTokenProjection(template *v1.PodTemplateSpec, name string) {
+	template.Spec.Containers[0].VolumeMounts = append(template.Spec.Containers[0].VolumeMounts,
+		v1.VolumeMount{
+			Name:      name,
+			MountPath: "/var/service-account-tokens/" + name,
+		})
+
+	template.Spec.Volumes = append(template.Spec.Volumes,
+		v1.Volume{
+			Name: name,
+			VolumeSource: v1.VolumeSource{
+				Projected: &v1.ProjectedVolumeSource{
+					Sources: []v1.VolumeProjection{
+						{
+							ServiceAccountToken: &v1.ServiceAccountTokenProjection{
+								Path:     "token",
+								Audience: name,
+							},
+						},
+						{
+							ConfigMap: &v1.ConfigMapProjection{
+								LocalObjectReference: v1.LocalObjectReference{
+									Name: "kube-root-ca-crt",
+								},
+								Items: []v1.KeyToPath{
+									{
+										Key:  "ca.crt",
+										Path: "ca.crt",
+									},
+								},
+							},
+						},
+						{
+							DownwardAPI: &v1.DownwardAPIProjection{
+								Items: []v1.DownwardAPIVolumeFile{
+									{
+										Path: "namespace",
+										FieldRef: &v1.ObjectFieldSelector{
+											APIVersion: "v1",
+											FieldPath:  "metadata.namespace",
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		})
+}
+
 type DaemonConfig struct {
 	Client    clientset.Interface
 	Name      string