},
			sa:        "serviceaccount",
			namespace: "namespace",
			success:   true,
		},
		{
			name: "no match namespace",
			identity: []string{
				spiffe.Identity{TrustDomain: "cluster.local", Namespace: "bad", ServiceAccount: "serviceaccount"}.String(),
			},
			sa:        "serviceaccount",
			namespace: "namespace",
			success:   false,
		},
		{

	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

---
# Source: prometheus/templates/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    app.kubernetes.io/component: server
    app.kubernetes.io/name: prometheus
    app.kubernetes.io/instance: prometheus
    app.kubernetes.io/version: v2.52.0
    helm.sh/chart: prometheus-25.21.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/part-of: prometheus
  name: prometheus
  namespace: istio-system

func genSpiffeURI(td string, ns, serviceAccount string) (string, error) {
	var err error
	if ns == "" || serviceAccount == "" {
		err = fmt.Errorf(
			"namespace or service account empty for SPIFFE uri ns=%v serviceAccount=%v", ns, serviceAccount)
	}
	return URIPrefix + sanitizeTrustDomain(td) + "/ns/" + ns + "/sa/" + serviceAccount, err
}

	createCmd.PersistentFlags().StringVarP(&serviceAccount, "serviceAccount", "s", "default", "The service identity to associate with the workload instances")
	_ = createCmd.RegisterFlagCompletionFunc("serviceAccount", func(
		cmd *cobra.Command, args []string, toComplete string,
	) ([]string, cobra.ShellCompDirective) {

			namespace:      "foo",
			serviceAccount: "bar",
			trustDomain:    "******@****.***.gserviceaccount.com",
			expectedURI:    "spiffe://kube-federating-id.testproj.iam.gserviceaccount.com/ns/foo/sa/bar",
		},
	}
	for id, tc := range testCases {
		got, err := genSpiffeURI(tc.trustDomain, tc.namespace, tc.serviceAccount)
		if tc.expectedError == "" && err != nil {
			t.Errorf("teste case [%v] failed, error %v", id, tc)
		}

			if completed.Authentication.ServiceAccounts.MaxExpiration < lowBound ||
				completed.Authentication.ServiceAccounts.MaxExpiration > upBound {
				return CompletedOptions{}, fmt.Errorf("the service-account-max-token-expiration must be between 1 hour and 2^32 seconds")
			}
			if completed.Authentication.ServiceAccounts.ExtendExpiration {

					Namespace:         testNS,
					Addresses:         [][]byte{parseIP("140.140.0.10")},
					Network:           testNW,
					CanonicalName:     "a",
					CanonicalRevision: "latest",
					ServiceAccount:    "sa1",
					WorkloadType:      workloadapi.WorkloadType_POD,
					WorkloadName:      "name0",
					ClusterId:         testC,
				},
			},
		},
	}})

		Service:                 ASvc,
		ServiceAccount:          true,
		Ports:                   ports.All(),
		Subsets:                 []echo.SubsetConfig{{}},
		Locality:                "region.zone.subzone",
		IncludeExtAuthz:         c.IncludeExtAuthz,
		DisableAutomountSAToken: disableAutomountSAToken,
	}

	b := echo.Config{
		Service:         BSvc,
		ServiceAccount:  true,
		Ports:           ports.All(),

		}
		allPublicKeys = append(allPublicKeys, publicKeys...)
	}
	validator, err := serviceaccount.NewLegacyValidator(lookup, serviceAccountGetter, secretsWriter)
	if err != nil {
		return nil, fmt.Errorf("while creating legacy validator, err: %w", err)
	}

	tokenAuthenticator := serviceaccount.JWTTokenAuthenticator([]string{serviceaccount.LegacyIssuer}, allPublicKeys, apiAudiences, validator)
	return tokenAuthenticator, nil
}