// collectData collects requested metadata in data map.
// Map's key is the requested name of file to dump
// Map's value is the (sorted) content of the field to be dumped in the file.
func (m *metadataVolume) collectData(data *map[string]string) error {
errlist := []error{}
for fieldReference, fileName := range m.fieldReferenceFileNames {
if values, err := fieldpath.ExtractFieldPathAsString(m.pod, fieldReference); err != nil {
glog.Error(err)
errlist = append(errlist, err)
} else {
(*data)[fileName] = sortLines(values)
}
}
return utilErrors.NewAggregate(errlist)
}
func envValueFrom(pod *api.Pod, e api.EnvVar) string {
internalFieldPath, _, err := api.Scheme.ConvertFieldLabel(e.ValueFrom.FieldRef.APIVersion, "Pod", e.ValueFrom.FieldRef.FieldPath, "")
if err != nil {
return "" // pod validation should catch this on create
}
valueFrom, err := fieldpath.ExtractFieldPathAsString(pod, internalFieldPath)
if err != nil {
return "" // pod validation should catch this on create
}
return valueFrom
}