해당 서비스 도커화 성공, 룰 추가, 로그인 오류 수정, 소문자 룰 어느정도 해결

api.hyungi.net/models/userModel.js

@@ -1,19 +1,16 @@
-const dbPool = require('../dbPool');
+const { getDb } = require('../dbPool');
 
 // 사용자 조회
 const findByUsername = async (username) => {
-  let connection;
   try {
-    connection = await dbPool.getConnection();
-    const [rows] = await connection.query(
+    const db = await getDb();
+    const [rows] = await db.query(
       'SELECT * FROM users WHERE username = ?', [username]
     );
     return rows[0];
   } catch (err) {
     console.error('DB 오류 - 사용자 조회 실패:', err);
     throw err;
-  } finally {
-    if (connection) connection.release();
   }
 };
 
@@ -22,18 +19,15 @@ const findByUsername = async (username) => {
  * @param {number} userId - 사용자 ID
  */
 const incrementFailedLoginAttempts = async (userId) => {
-    let connection;
     try {
-        connection = await dbPool.getConnection();
-        await connection.execute(
+        const db = await getDb();
+        await db.execute(
             'UPDATE users SET failed_login_attempts = failed_login_attempts + 1 WHERE user_id = ?',
             [userId]
         );
     } catch (err) {
         console.error('DB 오류 - 로그인 실패 횟수 증가 실패:', err);
         throw err;
-    } finally {
-        if (connection) connection.release();
     }
 };
 
@@ -42,18 +36,15 @@ const incrementFailedLoginAttempts = async (userId) => {
  * @param {number} userId - 사용자 ID
  */
 const lockUserAccount = async (userId) => {
-    let connection;
     try {
-        connection = await dbPool.getConnection();
-        await connection.execute(
+        const db = await getDb();
+        await db.execute(
             'UPDATE users SET locked_until = DATE_ADD(NOW(), INTERVAL 15 MINUTE) WHERE user_id = ?',
             [userId]
         );
     } catch (err) {
         console.error('DB 오류 - 계정 잠금 실패:', err);
         throw err;
-    } finally {
-        if (connection) connection.release();
     }
 };
 
@@ -62,18 +53,15 @@ const lockUserAccount = async (userId) => {
  * @param {number} userId - 사용자 ID
  */
 const resetLoginAttempts = async (userId) => {
-    let connection;
     try {
-        connection = await dbPool.getConnection();
-        await connection.execute(
+        const db = await getDb();
+        await db.execute(
             'UPDATE users SET last_login_at = NOW(), failed_login_attempts = 0, locked_until = NULL WHERE user_id = ?',
             [userId]
         );
     } catch (err) {
         console.error('DB 오류 - 로그인 상태 초기화 실패:', err);
         throw err;
-    } finally {
-        if (connection) connection.release();
     }
 };