optional UserInfo user = 2;

  // Audiences are audience identifiers chosen by the authenticator that are
  // compatible with both the TokenReview and token. An identifier is any
  // identifier in the intersection of the TokenReviewSpec audiences and the
  // token's audiences. A client of the TokenReview API that sets the
  // spec.audiences field should validate that a compatible audience identifier

  optional UserInfo user = 2;

  // Audiences are audience identifiers chosen by the authenticator that are
  // compatible with both the TokenReview and token. An identifier is any
  // identifier in the intersection of the TokenReviewSpec audiences and the
  // token's audiences. A client of the TokenReview API that sets the
  // spec.audiences field should validate that a compatible audience identifier

	// REQUIRED. Audience(s) that this ID Token is intended for.
	// It MUST contain the OAuth 2.0 client_id of the Relying Party
	// as an audience value. It MAY also contain identifiers for
	// other audiences. In the general case, the aud value is an
	// array of case sensitive strings. In the common special case
	// when there is one audience, the aud value MAY be a single
	// case sensitive

  repeated StorageClass items = 2;
}

// TokenRequest contains parameters of a service account token.
message TokenRequest {
  // audience is the intended audience of the token in "TokenRequestSpec".
  // It will default to the audiences of kube apiserver.
  optional string audience = 1;

  // expirationSeconds is the duration of validity of the token in "TokenRequestSpec".

		// ObjectMeta isn't required in real k8s, but needed for tests
		ObjectMeta: metav1.ObjectMeta{
			Name:      serviceAccount,
			Namespace: wg.Namespace,
		},
		Spec: authenticationv1.TokenRequestSpec{
			Audiences:         []string{"istio-ca"},
			ExpirationSeconds: &tokenDuration,
		},
	}

  repeated StorageClass items = 2;
}

// TokenRequest contains parameters of a service account token.
message TokenRequest {
  // audience is the intended audience of the token in "TokenRequestSpec".
  // It will default to the audiences of kube apiserver.
  optional string audience = 1;

  // expirationSeconds is the duration of validity of the token in "TokenRequestSpec".

## Deprecations

- kube-apiserver
  - The `--service-account-api-audiences` flag is deprecated in favor of `--api-audiences`. The old flag is accepted with a warning but will be removed in a future release. ([#70105](https://github.com/kubernetes/kubernetes/pull/70105), [@mikedanese](https://github.com/mikedanese))

- Added audienceMatchPolicy field to AuthenticationConfiguration and support for configuring multiple audiences.
  The "audienceMatchPolicy" can be empty (or unset) when a single audience is specified in the "audiences" field.
  The "audienceMatchPolicy" must be set to "MatchAny" when multiple audiences are specified in the "audiences" field. ([#123165](https://github.com/kubernetes/kubernetes/pull/123165), [@aramase](https://github.com/aramase))

## Changes by Kind

### Deprecation

- API server's deprecated `--service-account-api-audiences` flag was removed.  Use `--api-audiences` instead. ([#108624](https://github.com/kubernetes/kubernetes/pull/108624), [@ialidzhikov](https://github.com/ialidzhikov))

                  selected workloads' proxy.
                items:
                  properties:
                    audiences:
                      description: The list of JWT [audiences](https://tools.ietf.org/html/rfc7519#section-4.1.3)
                        that are allowed to access.
                      items:
                        minLength: 1