use sql as db driver instead of sqlite

cmd/s3share.go

@@ -15,6 +15,7 @@ type args struct {
 	Address      string `arg:"--address,env:ADDRESS" default:":3000" help:"what address to listen on" placeholder:"ADDRESS"`
 	APIUsername  string `arg:"--api-username,required,env:API_USERNAME" help:"username for API" placeholder:"USERNAME"`
 	APIPassword  string `arg:"--api-password,required,env:API_PASSWORD" help:"password for API" placeholder:"PASSWORD"`
+	DBConnection string `arg:"--db,required,env:DB_CONNECTION" help:"DSN in format: https://github.com/go-sql-driver/mysql#dsn-data-source-name"`
 }
 
 func (args) Version() string {
@@ -35,5 +36,6 @@ func main() {
 		Address:     args.Address,
 		APIUsername: args.APIUsername,
 		APIPassword: args.APIPassword,
+		DSN:         args.DBConnection,
 	})
 }