Function ExtractValuesObj

space-cli/cmd/utils/helm.go:164–213

ExtractValuesObj extract chart values from yaml file & cli flags

(setValuesFlag, valuesYamlFile string)

// ExtractValuesObj extract chart values from yaml file & cli flags
func ExtractValuesObj(setValuesFlag, valuesYamlFile string) (map[string]interface{}, error) {
	valuesFileObj := map[string]interface{}{}
	if valuesYamlFile != "" {
		var bodyInBytes []byte
		var err error
		if strings.HasPrefix(valuesYamlFile, "http") {
			// download file from the internet
			resp, err := http.Get(valuesYamlFile)
			if err != nil {
				return nil, err
			}
			if resp.StatusCode != http.StatusOK {
				return nil, fmt.Errorf("")
			}
			bodyInBytes, err = ioutil.ReadAll(resp.Body)
			if err != nil {
				return nil, err
			}
		} else {
			// read locally available file
			bodyInBytes, err = ioutil.ReadFile(valuesYamlFile)
			if err != nil {
				return nil, err
			}
		}

		if err := yaml.Unmarshal(bodyInBytes, &valuesFileObj); err != nil {
			return nil, err
		}
	}

	setValuesObj := map[string]interface{}{}
	if setValuesFlag != "" {
		arr := strings.Split(setValuesFlag, ",")
		for _, element := range arr {
			tempArr := strings.Split(element, "=")
			if len(tempArr) != 2 {
				return nil, fmt.Errorf("invalid value (%s) provided for flag --set, it should be in format foo1=bar1,foo2=bar2", tempArr)
			}
			setValuesObj[tempArr[0]] = tempArr[1]
		}
	}

	// override values of yaml file
	for key, value := range setValuesObj {
		valuesFileObj[key] = value
	}

	return valuesFileObj, nil
}