yaml.go

package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"os"

	"gopkg.in/yaml.v2"
)

type Clouds struct {
	Clouds map[string]struct {
		Profile       string   `yaml:"profile,omitempty"`
		RegionName    string   `yaml:"region_name,omitempty"`
		Regions       []string `yaml:"regions,omitempty"`
		DNSAPIVersion int      `yaml:"dns_api_version,omitempty"`
		Auth          struct {
			AuthURL     string `yaml:"auth_url,omitempty"`
			Username    string `yaml:"username,omitempty"`
			Password    string `yaml:"password,omitempty"`
			ProjectName string `yaml:"project_name,omitempty"`
			ProjectID   int    `yaml:"project_id,omitempty"`
		} `yaml:"auth,omitempty"`
	}
}

type CloudAuth struct {
}

func main() {
	clouds, err := parseCloudsYaml("/home/raphink/bas/go/yaml")
	if err != nil {
		log.Fatal(err)
	}

	y, _ := yaml.Marshal(clouds)
	fmt.Println(string(y))
}

func parseCloudsYaml(dirname string) (clouds *Clouds, err error) {
	clouds = &Clouds{}
	filename := fmt.Sprintf("%s/clouds.yaml", dirname)
	if f, err := os.Stat(filename); err != nil || !f.Mode().IsRegular() {
		return nil, nil
	}
	fileContent, err := ioutil.ReadFile(filename)
	err = yaml.Unmarshal(fileContent, clouds)
	return
}