feat: add env for use_pool

Author: xXLXx

src/config/rds.ts

@@ -19,6 +19,10 @@ export default {
         queueLimit: Number(
           process.env.LESGO_AWS_RDS_AURORA_MYSQL_PROXY_QUEUE_LIMIT || '0'
         ),
+        usePool:
+          process.env.LESGO_AWS_RDS_AURORA_MYSQL_USE_POOL === 'false'
+            ? false
+            : true,
       },
     },
   },

src/services/RDSAuroraMySQLProxyService/getMySQLProxyClient.ts

@@ -36,7 +36,7 @@ const getMySQLProxyClient = async (
     rdsConfig.aurora.mysql.proxy.dbCredentialsSecretId) as string;
   const databaseName =
     options.databaseName || rdsConfig.aurora.mysql.databaseName;
-  const usePool = options.usePool ?? true;
+  const usePool = options.usePool ?? rdsConfig.aurora.mysql.usePool;
 
   if (!isEmpty(singleton[singletonConn])) {
     logger.debug(`${FILE}::REUSE_RDS_CONNECTION`);