// +optional
  optional BoundObjectReference boundObjectRef = 3;
}

// TokenRequestStatus is the result of a token request.
message TokenRequestStatus {
  // Token is the opaque bearer token.
  optional string token = 1;

  // ExpirationTimestamp is the time of expiration of the returned token.
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time expirationTimestamp = 2;
}

) ([]grpc.DialOption, error) {
	ctx := context.TODO()
	// If we are using the insecure 15010 don't bother getting a token
	if opts.Plaintext || opts.CertDir != "" {
		return make([]grpc.DialOption, 0), nil
	}
	// Use bearer token
	aud := tokenAudiences
	isMCP := strings.HasSuffix(opts.Xds, ".googleapis.com") || strings.HasSuffix(opts.Xds, ".googleapis.com:443")
	if isMCP {
		// Special credentials handling when using ASM Managed Control Plane.

# If we are not using the default, assume its private and we need to authenticate
if [[ "${ISTIO_ENVOY_BASE_URL}" != "https://storage.googleapis.com/istio-build/proxy" ]]; then
  AUTH_HEADER="Authorization: Bearer $(gcloud auth print-access-token)"
  export AUTH_HEADER
fi

SIDECAR="${SIDECAR:-envoy}"

# OS-neutral vars. These currently only work for linux.
ISTIO_ENVOY_VERSION="${ISTIO_ENVOY_VERSION:-${PROXY_REPO_SHA}}"

  // +optional
  optional TokenReviewStatus status = 3;
}

// TokenReviewSpec is a description of the token authentication request.
message TokenReviewSpec {
  // Token is the opaque bearer token.
  // +optional
  optional string token = 1;

  // Audiences is a list of the identifiers that the resource server presented
  // with the token identifies as. Audience-aware token authenticators will

# If we are not using the default, assume its private and we need to authenticate
if [[ "${ISTIO_ZTUNNEL_BASE_URL}" != "https://storage.googleapis.com/istio-build/ztunnel" ]]; then
  AUTH_HEADER="Authorization: Bearer $(gcloud auth print-access-token)"
  export AUTH_HEADER
fi

ZTUNNEL_REPO_SHA="${ZTUNNEL_REPO_SHA:-$(grep ZTUNNEL_REPO_SHA istio.deps  -A 4 | grep lastStableSHA | cut -f 4 -d '"')}"

func (at *SecretType) Set(in string) error {
	*at = SecretType(in)
	return nil
}

const (
	// Use a bearer token for authentication to the remote kubernetes cluster.
	RemoteSecretAuthTypeBearerToken RemoteSecretAuthType = "bearer-token"

	// Use a custom authentication plugin for the remote kubernetes cluster.
	RemoteSecretAuthTypePlugin RemoteSecretAuthType = "plugin"