func writeTo(file string, message string) error {
a := afero.Afero{
Fs: appFs,
}
f, err := a.OpenFile(file, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
if err != nil {
logrus.WithError(err).Errorf("Couldn't open %s for writing", file)
return err
}
defer f.Close()
_, err = f.WriteString(message)
return err
}
