tcp-proxy/pkg/config/config.go

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2020-01-14 09:58:05 +00:00
package config
import (
"errors"
"io/ioutil"
"os"
"path"
"git.trj.tw/golang/utils"
"github.com/otakukaze/envconfig"
"gopkg.in/yaml.v2"
)
// Listen -
type Listen struct {
TargetHost string `yaml:"target_host"`
TargetPort int `yaml:"target_port"`
ListenPort int `yaml:"listen_port"`
}
// Config -
type Config struct {
Verbose int `yaml:"verbose" env:"PROXY_VERBOSE"`
Listen []Listen `yaml:"listen"`
}
var conf *Config
// Load config from file and env
func Load(p ...string) (err error) {
var fp string
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")
}
b, err := ioutil.ReadFile(fp)
if err != nil {
return
}
conf = &Config{}
err = yaml.Unmarshal(b, conf)
if err != nil {
return
}
envconfig.Parse(conf)
return
}
// Get config
func Get() *Config { return conf }