)

// GetBootstrapConfigDump retrieves the bootstrap config dump from the ConfigDump
func (w *Wrapper) GetBootstrapConfigDump() (*admin.BootstrapConfigDump, error) {
	bootstrapDumpAny, err := w.getSection(bootstrap)
	if err != nil {
		return nil, err
	}
	bootstrapDump := &admin.BootstrapConfigDump{}
	err = bootstrapDumpAny.UnmarshalTo(bootstrapDump)
	if err != nil {
		return nil, err
	}
	return bootstrapDump, nil

{
  "configs": [
    {
      "@type": "type.googleapis.com/envoy.admin.v3.BootstrapConfigDump",
      "bootstrap": {
        "node": {
          "metadata": {
            "ISTIO_PROXY_SHA": "istio-proxy:436f365a8007cd8a13a9f1321e7cce94bcc8883e",
            "ISTIO_VERSION": "1.10.0"
          },
          "userAgentBuildVersion": {
            "version": {
              "majorNumber": 1,
              "minorNumber": 18,
              "patch": 3

				returnErr = nil
			}
			return returnStr, returnErr
		}
	}
	return "", fmt.Errorf("can not find ROOTCA from secret")
}

func (c *ConfigWriter) getIstioVersionInfo(bootstrapDump *adminv3.BootstrapConfigDump) (version, sha string) {
	const (
		istioVersionKey  = "ISTIO_VERSION"
		istioProxyShaKey = "ISTIO_PROXY_SHA"
	)

	md := bootstrapDump.GetBootstrap().GetNode().GetMetadata().GetFields()

)

type configTypeURL string

// See https://www.envoyproxy.io/docs/envoy/latest/api-v3/admin/v3/config_dump.proto
const (
	bootstrap configTypeURL = "type.googleapis.com/envoy.admin.v3.BootstrapConfigDump"
	listeners configTypeURL = "type.googleapis.com/envoy.admin.v3.ListenersConfigDump"
	endpoints configTypeURL = "type.googleapis.com/envoy.admin.v3.EndpointsConfigDump"