// or from different versions of proxies connecting. While Pilot has access to the meshConfig.defaultConfig,
	// this field should be preferred if it is present.
	ProxyConfig *NodeMetaProxyConfig `json:"PROXY_CONFIG,omitempty"`

	// IstioVersion specifies the Istio version associated with the proxy
	IstioVersion string `json:"ISTIO_VERSION,omitempty"`

	// IstioRevision specifies the Istio revision associated with the proxy.

		generated, err := grpcxds.LoadBootstrap(bootstrapPath)
		if err != nil {
			t.Fatalf("could not read bootstrap config: %v", err)
		}

		// goldenfile determinism
		for _, k := range []string{"PROV_CERT", "PROXY_CONFIG"} {
			delete(generated.Node.Metadata.Fields, k)
		}
		got, err := json.MarshalIndent(generated, "", "  ")
		if err != nil {
			t.Fatalf("failed to marshal bootstrap: %v", err)
		}