go-ddns-svc/module/config/config.go

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package config
import (
"errors"
"io/ioutil"
"os"
"path"
"strconv"
"git.trj.tw/golang/utils"
yaml "gopkg.in/yaml.v2"
)
// Config -
type Config struct {
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Port int `yaml:"port"`
VerifyValue string `yaml:"verify_value"`
AWS struct {
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SharedConfig bool `yaml:"shared_config"`
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SharedName string `yaml:"shared_name"`
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AccessKey string `yaml:"access_key"`
SecretKey string `yaml:"secret_key"`
} `yaml:"aws"`
}
var conf *Config
// LoadConfig -
func LoadConfig(p ...string) (err error) {
fp := ""
if len(p) > 0 && len(p[0]) > 0 {
fp = p[0]
} else {
wd, err := os.Getwd()
if err != nil {
return err
}
fp = path.Join(wd, "config.yml")
}
fp = utils.ParsePath(fp)
if exists := utils.CheckExists(fp, false); !exists {
return errors.New("config file not exists")
}
data, err := ioutil.ReadFile(fp)
if err != nil {
return err
}
conf = &Config{}
err = yaml.Unmarshal(data, conf)
if err != nil {
return err
}
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envOverride()
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return
}
func envOverride() {
var str string
// set port
str = os.Getenv("PORT")
if len(str) > 0 {
num, err := strconv.Atoi(str)
if err == nil && num > 0 && num < 65536 {
conf.Port = num
}
}
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str = os.Getenv("VERIFY_VALUE")
if len(str) > 0 {
conf.VerifyValue = str
}
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// set aws use shared config
str = os.Getenv("AWS_SHARED_CONF")
if len(str) > 0 {
if str == "1" {
conf.AWS.SharedConfig = true
} else if str == "0" {
conf.AWS.SharedConfig = false
}
}
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str = os.Getenv("AWS_SHARED_NAME")
if len(str) > 0 {
conf.AWS.SharedName = str
}
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// set aws access key
str = os.Getenv("AWS_ACCESS_KEY")
if len(str) > 0 {
conf.AWS.AccessKey = str
}
// set aws secret key
str = os.Getenv("AWS_SECRET_KEY")
if len(str) > 0 {
conf.AWS.SecretKey = str
}
}
// GetConfig -
func GetConfig() *Config {
return conf
}