chainedCNIPlugin:       true,
			preConfFile:            "00-calico.conflist",
			resultFileName:         "00-calico.conflist",
			expectedOutputFile:     testDataDir + "/expected/10-calico.conflist-istioconfig",
			expectedPostCleanFile:  testDataDir + "/pre/calico.conflist",
			cniConfDirOrderedFiles: []string{"calico.conflist"},
		},
		{
			name:                   "File without pre-plugins--.conf",

// getIstioConfig returns .metadata.filter_metadata.istio.config, err
func getIstioConfig(metadata *core.Metadata) (string, error) {
	if metadata != nil {
		istioConfig := asMyProtoValue(metadata.FilterMetadata[util.IstioMetadataKey]).
			keyAsString("config")
		return istioConfig, nil
	}
	return "", fmt.Errorf("no istio config")
}

// getIstioDestinationRuleNameForSvc returns name, namespace