diff --git a/notification-server/server.go b/notification-server/server.go
index f19eb982..7b6dfead 100644
--- a/notification-server/server.go
+++ b/notification-server/server.go
@@ -19,7 +19,6 @@ import (
 	"github.com/gorilla/mux"
 	"github.com/gorilla/websocket"
 	log "github.com/sirupsen/logrus"
-	"gopkg.in/ini.v1"
 )
 
 var configDir string
@@ -46,36 +45,12 @@ func init() {
 }
 
 func loadNotifConfig() {
-	notifyConfPath := filepath.Join(configDir, "seafile.conf")
-
-	opts := ini.LoadOptions{}
-	opts.SpaceBeforeInlineComment = true
-	config, err := ini.LoadSources(opts, notifyConfPath)
-	if err != nil {
-		log.Fatalf("Failed to load notification.conf: %v", err)
-	}
-
-	section, err := config.GetSection("notification")
-	if err != nil {
-		log.Fatal("No notification section in seafile.conf.")
-	}
-
 	host = "0.0.0.0"
 	port = 8083
-	logLevel := "info"
-	if key, err := section.GetKey("host"); err == nil {
-		host = key.String()
-	}
-
-	if key, err := section.GetKey("port"); err == nil {
-		n, err := key.Uint()
-		if err == nil {
-			port = uint32(n)
-		}
-	}
 
-	if key, err := section.GetKey("log_level"); err == nil {
-		logLevel = key.String()
+	logLevel := os.Getenv("NOTIFICATION_SERVER_LOG_LEVEL")
+	if logLevel == "" {
+		logLevel = "info"
 	}
 
 	level, err := log.ParseLevel(logLevel)
@@ -90,11 +65,7 @@ func loadNotifConfig() {
 func loadCcnetDB() {
 	option, err := loadDBOptionFromEnv()
 	if err != nil {
-		log.Infof("Failed to load database from env: %v", err)
-		option, err = loadDBOptionFromFile()
-		if err != nil {
-			log.Fatalf("Failed to load database: %v", err)
-		}
+		log.Fatalf("Failed to load database from env: %v", err)
 	}
 
 	var dsn string
@@ -132,7 +103,7 @@ func loadDBOptionFromEnv() (*DBOption, error) {
 		return nil, fmt.Errorf("failed to read SEAFILE_MYSQL_DB_USER")
 	}
 	password := os.Getenv("SEAFILE_MYSQL_DB_PASSWORD")
-	if user == "" {
+	if password == "" {
 		return nil, fmt.Errorf("failed to read SEAFILE_MYSQL_DB_PASSWORD")
 	}
 	host := os.Getenv("SEAFILE_MYSQL_DB_HOST")
@@ -165,80 +136,6 @@ func loadDBOptionFromEnv() (*DBOption, error) {
 	return option, nil
 }
 
-func loadDBOptionFromFile() (*DBOption, error) {
-	confPath := filepath.Join(configDir, "seafile.conf")
-	config, err := ini.Load(confPath)
-	if err != nil {
-		return nil, fmt.Errorf("failed to load seafile.conf: %v", err)
-	}
-
-	section, err := config.GetSection("database")
-	if err != nil {
-		return nil, fmt.Errorf("no database section in seafile.conf")
-	}
-
-	var dbEngine string = "mysql"
-	key, err := section.GetKey("type")
-	if err == nil {
-		dbEngine = key.String()
-	}
-
-	if !strings.EqualFold(dbEngine, "mysql") {
-		return nil, fmt.Errorf("unsupported database %s", dbEngine)
-	}
-
-	unixSocket := ""
-	if key, err = section.GetKey("unix_socket"); err == nil {
-		unixSocket = key.String()
-	}
-
-	host := ""
-	if key, err = section.GetKey("host"); err == nil {
-		host = key.String()
-	} else if unixSocket == "" {
-		return nil, fmt.Errorf("no database host in seafile.conf")
-	}
-	// user is required.
-	if key, err = section.GetKey("user"); err != nil {
-		return nil, fmt.Errorf("no database user in seafile.conf")
-	}
-	user := key.String()
-	password := ""
-	if key, err = section.GetKey("password"); err == nil {
-		password = key.String()
-	} else if unixSocket == "" {
-		return nil, fmt.Errorf("no database password in seafile.conf")
-	}
-	if key, err = section.GetKey("db_name"); err != nil {
-		return nil, fmt.Errorf("no database db_name in seafile.conf")
-	}
-	seafileDbName := key.String()
-	if key, err = section.GetKey("ccnet_db_name"); err != nil {
-		return nil, fmt.Errorf("no database ccnet_db_name in seafile.conf")
-	}
-	ccnetDbName := key.String()
-	port := 3306
-	if key, err = section.GetKey("port"); err == nil {
-		port, _ = key.Int()
-	}
-	useTLS := false
-	if key, err = section.GetKey("USE_SSL"); err == nil {
-		useTLS, _ = key.Bool()
-	}
-
-	option := new(DBOption)
-	option.User = user
-	option.Password = password
-	option.Host = host
-	option.Port = port
-	option.CcnetDbName = ccnetDbName
-	option.SeafileDbName = seafileDbName
-	option.UnixSocket = unixSocket
-	option.UseTLS = useTLS
-
-	return option, nil
-}
-
 func main() {
 	flag.Parse()