func()

in pkg/selector/eks.go [64:106]

• 38 lines of code
• 10 McCabe index (conditional complexity)

func (e *EKS) getSupportedInstanceTypes(version string) ([]string, error) {
	supportedInstanceTypes := []string{}
	resp, err := http.Get(fmt.Sprintf("%s/archive/%s.zip", e.AMIRepoURL, version))
	if err != nil {
		return supportedInstanceTypes, err
	}

	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		return supportedInstanceTypes, fmt.Errorf("Unable to retrieve EKS supported instance types, got non-200 status code: %d", resp.StatusCode)
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return supportedInstanceTypes, err
	}

	zipReader, err := zip.NewReader(bytes.NewReader(body), int64(len(body)))
	if err != nil {
		return supportedInstanceTypes, err
	}

	// Read all the files from zip archive
	for _, zipFile := range zipReader.File {
		filePathParts := strings.Split(zipFile.Name, "/")
		fileName := filePathParts[len(filePathParts)-1]
		if fileName == eksInstanceTypesFile {
			unzippedFileBytes, err := readZipFile(zipFile)
			if err != nil {
				log.Println(err)
				continue
			}
			supportedInstanceTypesFileBody := string(unzippedFileBytes)
			for _, line := range strings.Split(strings.Replace(supportedInstanceTypesFileBody, "\r\n", "\n", -1), "\n") {
				if !strings.HasPrefix(line, "#") {
					instanceType := strings.Split(line, " ")[0]
					supportedInstanceTypes = append(supportedInstanceTypes, instanceType)
				}
			}
		}
	}
	return supportedInstanceTypes, nil
}