api/autoscale.go
func autoScaleListRules(w http.ResponseWriter, r *http.Request, t auth.Token) error {
	allowedListRule := permission.Check(t, permission.PermNodeAutoscaleRead)
	if !allowedListRule {
		return permission.ErrUnauthorized
	}
	rules, err := autoscale.ListRules()
	if err != nil {
		return err
	}
	if len(rules) == 0 {
		w.WriteHeader(http.StatusNoContent)
		return nil
	}
	return json.NewEncoder(w).Encode(&rules)
}
func autoScaleListRules(w http.ResponseWriter, r *http.Request, t auth.Token) error {
	allowedListRule := permission.Check(t, permission.PermNodeAutoscaleRead)
	if !allowedListRule {
		return permission.ErrUnauthorized
	}
	rules, err := autoscale.ListRules()
	if err != nil {
		return err
	}
	if len(rules) == 0 {
		w.WriteHeader(http.StatusNoContent)
		return nil
	}
	return json.NewEncoder(w).Encode(&rules)
}
// title: autoscale rules list
// path: /autoscale/rules
// method: GET
// produce: application/json
// responses:
//   200: Ok
//   204: No content
//   401: Unauthorized