chore: ci/cd 파일 및 도커파일Java 17 → 21, Spring Boot 버전 업 반영

Author: sukangpunch

.github/workflows/ci.yml

@@ -15,10 +15,10 @@ jobs:
       - name: Checkout the code
         uses: actions/checkout@v4
 
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
 
       - name: Setup Gradle

.github/workflows/dev-cd.yml

@@ -21,10 +21,10 @@ jobs:
         uses: actions/checkout@v4
 
       # --- Java, Gradle 설정 ---
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3

.github/workflows/prod-cd.yml

@@ -27,10 +27,10 @@ jobs:
         uses: actions/checkout@v4
 
       # --- Java, Gradle 설정 ---
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3

Dockerfile

@@ -1,5 +1,5 @@
 # JDK 버전 설정
-FROM eclipse-temurin:17-jdk
+FROM eclipse-temurin:21-jdk
 
 # JAR_FILE 변수 정의
 ARG JAR_FILE=./build/libs/solid-connection-0.0.1-SNAPSHOT.jar

claude.md

@@ -7,8 +7,8 @@
 
 Solid Connect Server는 교환학생 준비생을 위해 대학 정보, 멘토 매칭, 모의지원 기능 등을 제공하는 교환학생 지원 통합 플랫폼입니다.
 
-- **언어**: Java 17
-- **프레임워크**: Spring Boot 3.1.5
+- **언어**: Java 21
+- **프레임워크**: Spring Boot 3.5.11
 - **빌드 도구**: Gradle
 - **데이터베이스**: MySQL (주), Redis (캐싱)
 - **마이그레이션**: Flyway