for _, f := range opts.Authentication.ServiceAccounts.KeyFiles {
		keys, err := keyutil.PublicKeysFromFile(f)
		if err != nil {
			return nil, nil, fmt.Errorf("failed to parse key file %q: %w", f, err)
		}
		pubKeys = append(pubKeys, keys...)
	}
	config.ServiceAccountIssuerURL = opts.Authentication.ServiceAccounts.Issuers[0]
	config.ServiceAccountJWKSURI = opts.Authentication.ServiceAccounts.JWKSURI

			ctx := context.Background()
			if _, err := client.CoreV1().ServiceAccounts(sa.ObjectMeta.Namespace).Create(ctx, sa, metav1.CreateOptions{}); err != nil {
				if !apierrors.IsAlreadyExists(err) {
					lastError = errors.Wrap(err, "unable to create ServicAccount")
					return false, nil
				}
				if _, err := client.CoreV1().ServiceAccounts(sa.ObjectMeta.Namespace).Update(ctx, sa, metav1.UpdateOptions{}); err != nil {

	oldServiceAccount := shards.ServiceAccounts
	serviceAccounts := sets.String{}
	for _, epShards := range shards.Shards {
		for _, ep := range epShards {
			if ep.ServiceAccount != "" {
				serviceAccounts.Insert(ep.ServiceAccount)
			}
		}
	}

	if !oldServiceAccount.Equals(serviceAccounts) {
		shards.ServiceAccounts = serviceAccounts

	svcPort *networking.ServicePort, svcLabels map[string]string, serviceAccount string,
) *model.ServiceInstance {
	i := makeInstance(cfg, address, port, svcPort, svcLabels, MTLSUnlabelled)
	i.Endpoint.ServiceAccount = spiffe.MustGenSpiffeURIForTrustDomain("cluster.local", i.Service.Attributes.Namespace, serviceAccount)
	return i
}

// nolint: unparam

	dc.deployments.AddEventHandler(parentHandler)
	dc.clients[gvr.Deployment] = NewUntypedWrapper(dc.deployments)

	dc.serviceAccounts = kclient.NewFiltered[*corev1.ServiceAccount](client, filter)
	dc.serviceAccounts.AddEventHandler(parentHandler)
	dc.clients[gvr.ServiceAccount] = NewUntypedWrapper(dc.serviceAccounts)

	dc.namespaces = kclient.NewFiltered[*corev1.Namespace](client, filter)

		expectedError bool
	}{
		{
			name: "create serviceaccount success",
			setupClient: func(client *clientsetfake.Clientset) {
				client.PrependReactor("create", "serviceaccounts", func(clientgotesting.Action) (bool, runtime.Object, error) {
					return true, nil, nil
				})
			},
			expectedError: false,
		},
		{
			name: "create serviceaccount returns error",

					Port:     port.Port,
					Protocol: port.Protocol,
				}
			} else {
				out.Ports[i] = nil
			}
		}
	}

	if s.ServiceAccounts != nil {
		out.ServiceAccounts = make([]string, len(s.ServiceAccounts))
		copy(out.ServiceAccounts, s.ServiceAccounts)
	}
	out.ClusterVIPs = *s.ClusterVIPs.DeepCopy()
	return &out
}

// Equals compares two service objects.

				rbacv1helpers.NewRule("delete").Groups(legacyGroup).Resources("secrets").RuleOrDie(),
				rbacv1helpers.NewRule("get").Groups(legacyGroup).Resources("namespaces", "secrets", "serviceaccounts", "configmaps").RuleOrDie(),
				rbacv1helpers.NewRule("update").Groups(legacyGroup).Resources("secrets", "serviceaccounts").RuleOrDie(),

		}
	case gvr.ServiceAccount:
		l = func(options metav1.ListOptions) (runtime.Object, error) {
			return c.Kube().CoreV1().ServiceAccounts(opts.Namespace).List(context.Background(), options)
		}
		w = func(options metav1.ListOptions) (watch.Interface, error) {
			return c.Kube().CoreV1().ServiceAccounts(opts.Namespace).Watch(context.Background(), options)
		}
	case gvr.ServiceEntry:

	}
	return config, nil
}

func createServiceAccount(client kubernetes.Interface, ns string, serviceAccount string) error {
	scopes.Framework.Debugf("Creating service account for: %s/%s", ns, serviceAccount)
	_, err := client.CoreV1().ServiceAccounts(ns).Create(context.TODO(), &corev1.ServiceAccount{
		ObjectMeta: metav1.ObjectMeta{Name: serviceAccount},
	}, metav1.CreateOptions{})
	return err
}