diff --git a/internal/bootstrap/db.go b/internal/bootstrap/db.go
index a12f300..533d529 100644
--- a/internal/bootstrap/db.go
+++ b/internal/bootstrap/db.go
@@ -24,7 +24,9 @@ func InitDatabase(ctx context.Context) error {
 	switch conf.Conf.Database.Type {
 	case conf.DatabaseTypeMysql:
 		var dsn string
-		if conf.Conf.Database.Port == 0 {
+		if conf.Conf.Database.CustomDSN != "" {
+			dsn = conf.Conf.Database.CustomDSN
+		} else if conf.Conf.Database.Port == 0 {
 			dsn = fmt.Sprintf("%s:%s@unix(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&tls=%s",
 				conf.Conf.Database.User,
 				conf.Conf.Database.Password,
@@ -55,7 +57,9 @@ func InitDatabase(ctx context.Context) error {
 		// opts = append(opts, &gorm.Config{})
 	case conf.DatabaseTypeSqlite3:
 		var dsn string
-		if conf.Conf.Database.DBName == "memory" || strings.HasPrefix(conf.Conf.Database.DBName, ":memory:") {
+		if conf.Conf.Database.CustomDSN != "" {
+			dsn = conf.Conf.Database.CustomDSN
+		} else if conf.Conf.Database.DBName == "memory" || strings.HasPrefix(conf.Conf.Database.DBName, ":memory:") {
 			dsn = "file::memory:?cache=shared&_journal_mode=WAL&_vacuum=incremental&_pragma=foreign_keys(1)"
 			log.Infof("sqlite3 database memory")
 		} else {
@@ -72,7 +76,9 @@ func InitDatabase(ctx context.Context) error {
 		// opts = append(opts, &gorm.Config{})
 	case conf.DatabaseTypePostgres:
 		var dsn string
-		if conf.Conf.Database.Port == 0 {
+		if conf.Conf.Database.CustomDSN != "" {
+			dsn = conf.Conf.Database.CustomDSN
+		} else if conf.Conf.Database.Port == 0 {
 			dsn = fmt.Sprintf("host=%s user=%s password=%s dbname=%s sslmode=%s",
 				conf.Conf.Database.Host,
 				conf.Conf.Database.User,
diff --git a/internal/conf/db.go b/internal/conf/db.go
index 7785c59..453df75 100644
--- a/internal/conf/db.go
+++ b/internal/conf/db.go
@@ -16,6 +16,8 @@ type DatabaseConfig struct {
 	Password string       `yaml:"password" lc:"database password" env:"DATABASE_PASSWORD"`
 	DBName   string       `yaml:"db_name" lc:"database name, when type is sqlite3, it will use sqlite db file or memory" env:"DATABASE_DB_NAME"`
 	SslMode  string       `yaml:"ssl_mode" lc:"database ssl mode, default disable" env:"DATABASE_SSL_MODE"`
+
+	CustomDSN string `yaml:"custom_dsn" lc:"custom dsn, when not empty, it will ignore other config" env:"DATABASE_CUSTOM_DSN"`
 }
 
 func DefaultDatabaseConfig() DatabaseConfig {