func getBootstrapFromJoinConfig()

in projects/aws/bottlerocket-bootstrap/pkg/kubeadm/utils.go [88:105]

• 16 lines of code
• 3 McCabe index (conditional complexity)

func getBootstrapFromJoinConfig(path string) (string, string, error) {
	data, err := ioutil.ReadFile(path)
	if err != nil {
		return "", "", errors.Wrap(err, "Error reading kubeadm join config file")
	}
	joinConfig := strings.TrimPrefix(string(data), "---")

	kubeadmJoinData, err := unmarshalIntoMap([]byte(joinConfig))
	if err != nil {
		return "", "", errors.Wrap(err, "failed unmarshalling yaml kubeadm join config to interfaces")
	}
	discovery := kubeadmJoinData["discovery"].(map[string]interface{})
	bootstrapToken := discovery["bootstrapToken"].(map[string]interface{})
	serverEndpoint := bootstrapToken["apiServerEndpoint"].(string)
	token := bootstrapToken["token"].(string)

	return "https://" + serverEndpoint, token, nil
}