refactor: openpitrix module

Signed-off-by: hongming <talonwan@yunify.com>

vendor/openpitrix.io/openpitrix/pkg/config/config.go

@@ -0,0 +1,94 @@
+// Copyright 2018 The OpenPitrix Authors. All rights reserved.
+// Use of this source code is governed by a Apache license
+// that can be found in the LICENSE file.
+
+package config
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/koding/multiconfig"
+
+	"openpitrix.io/openpitrix/pkg/logger"
+)
+
+type Config struct {
+	Log         LogConfig
+	Grpc        GrpcConfig
+	Mysql       MysqlConfig
+	Etcd        EtcdConfig
+	IAM         IAMConfig
+	DisableGops bool `default:"false"`
+}
+
+type IAMConfig struct {
+	SecretKey              string        `default:"OpenPitrix-lC4LipAXPYsuqw5F"`
+	ExpireTime             time.Duration `default:"2h"`
+	RefreshTokenExpireTime time.Duration `default:"336h"` // default is 2 week
+}
+
+type LogConfig struct {
+	Level string `default:"info"` // debug, info, warn, error, fatal
+}
+
+type GrpcConfig struct {
+	ShowErrorCause bool `default:"false"` // show grpc error cause to frontend
+}
+
+type EtcdConfig struct {
+	Endpoints string `default:"openpitrix-etcd:2379"` // Example: "localhost:2379,localhost:22379,localhost:32379"
+}
+
+type MysqlConfig struct {
+	Host     string `default:"openpitrix-db"`
+	Port     string `default:"3306"`
+	User     string `default:"root"`
+	Password string `default:"password"`
+	Database string `default:"openpitrix"`
+	Disable  bool   `default:"false"`
+}
+
+func (m *MysqlConfig) GetUrl() string {
+	return fmt.Sprintf("%s:%s@tcp(%s:%s)/%s", m.User, m.Password, m.Host, m.Port, m.Database)
+}
+
+func PrintUsage() {
+	fmt.Fprintf(os.Stdout, "Usage of %s:\n", os.Args[0])
+	flag.PrintDefaults()
+	fmt.Fprint(os.Stdout, "\nSupported environment variables:\n")
+	e := newLoader("openpitrix")
+	e.PrintEnvs(new(Config))
+	fmt.Println("")
+}
+
+func GetFlagSet() *flag.FlagSet {
+	flag.CommandLine.Usage = PrintUsage
+	return flag.CommandLine
+}
+
+func ParseFlag() {
+	GetFlagSet().Parse(os.Args[1:])
+}
+
+func LoadConf() *Config {
+	ParseFlag()
+
+	config := new(Config)
+	m := &multiconfig.DefaultLoader{}
+	m.Loader = multiconfig.MultiLoader(newLoader("openpitrix"))
+	m.Validator = multiconfig.MultiValidator(
+		&multiconfig.RequiredValidator{},
+	)
+	err := m.Load(config)
+	if err != nil {
+		logger.Critical(nil, "Failed to load config: %+v", err)
+		panic(err)
+	}
+	logger.SetLevelByString(config.Log.Level)
+	logger.Debug(nil, "LoadConf: %+v", config)
+
+	return config
+}