[chore][config-server] Docker 환경 + CI 워크플로우 추가

.github/workflows/ci.yml

@@ -0,0 +1,44 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - main
+      - dev
+  push:
+    branches:
+      - main
+      - dev
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    env:
+      FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Grant execute permission to gradlew
+        run: chmod +x gradlew
+
+      - name: Build & Test
+        run: ./gradlew build --no-daemon
+
+      - name: Upload test report (on failure)
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-report
+          path: build/reports/tests/
+          retention-days: 7

Dockerfile

@@ -0,0 +1,49 @@
+# syntax=docker/dockerfile:1.7
+
+# ===== Stage 1: Build =====
+FROM eclipse-temurin:21-jdk-jammy AS builder
+
+WORKDIR /app
+
+# 빌드 설정 파일만 먼저 복사 (의존성 레이어 캐시 최적화)
+COPY gradlew .
+COPY gradle gradle
+COPY build.gradle settings.gradle ./
+
+RUN chmod +x gradlew
+
+# 의존성만 먼저 다운로드 (소스 변경 시에도 이 레이어는 캐시됨)
+RUN ./gradlew bootJar -x test --no-daemon || true
+
+# 소스 복사 후 빌드
+COPY src src
+RUN ./gradlew clean bootJar --no-daemon -x test
+
+# 빌드된 jar에서 layer 추출
+RUN java -Djarmode=layertools -jar build/libs/*.jar extract
+
+
+# ===== Stage 2: Runtime =====
+FROM eclipse-temurin:21-jre-jammy
+
+# healthcheck 위해 curl 설치
+RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
+
+# 비-root 유저 생성
+RUN useradd -ms /bin/bash spring
+
+WORKDIR /app
+
+# layered jar 복사 (변경 빈도 낮은 순서대로)
+COPY --from=builder --chown=spring:spring /app/dependencies/ ./
+COPY --from=builder --chown=spring:spring /app/spring-boot-loader/ ./
+COPY --from=builder --chown=spring:spring /app/snapshot-dependencies/ ./
+COPY --from=builder --chown=spring:spring /app/application/ ./
+
+USER spring
+
+EXPOSE 8080
+
+ENV JAVA_OPTS=""
+
+ENTRYPOINT ["sh", "-c", "exec java $JAVA_OPTS org.springframework.boot.loader.launch.JarLauncher"]

build.gradle

@@ -22,6 +22,7 @@ ext {
 }
 
 dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-actuator'
     implementation 'org.springframework.boot:spring-boot-starter-security'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	implementation 'org.springframework.cloud:spring-cloud-config-server'

docker-compose.yml

@@ -0,0 +1,33 @@
+version: '3.9'
+
+services:
+  config-server:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: config-server:latest
+    container_name: config-server
+    ports:
+      - "8888:8080"
+    environment:
+      SPRING_PROFILES_ACTIVE: ${SPRING_PROFILES_ACTIVE:-prod}
+      CONFIG_SERVER_USERNAME: ${CONFIG_SERVER_USERNAME}
+      CONFIG_SERVER_PASSWORD: ${CONFIG_SERVER_PASSWORD}
+      GIT_USERNAME: ${GIT_USERNAME}
+      GIT_PASSWORD: ${GIT_PASSWORD}
+      EUREKA_URL: ${EUREKA_URL:-http://eureka-server:8761/eureka/}
+      JAVA_OPTS: "-XX:MaxRAMPercentage=75.0 -XX:+UseG1GC"
+    networks:
+      - first-ticket-network
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8080/actuator/health"]
+      interval: 30s
+      timeout: 5s
+      start_period: 60s
+      retries: 3
+    restart: unless-stopped
+
+networks:
+  first-ticket-network:
+    external: true
+    name: first-ticket-network

src/test/java/com/firstticket/configserver/ConfigServerApplicationTests.java

@@ -2,14 +2,10 @@
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
 
-@SpringBootTest(properties = {
-		"spring.cloud.config.server.git.clone-on-start=false",
-		"spring.cloud.config.server.git.uri=https://example.com/dummy.git",
-		"spring.cloud.config.server.git.username=dummy",
-		"spring.cloud.config.server.git.password=dummy",
-		"eureka.client.enabled=false"
-})
+@ActiveProfiles("test")
+@SpringBootTest
 class ConfigServerApplicationTests {
 
 	@Test

src/test/resources/application-test.yml

@@ -0,0 +1,17 @@
+spring:
+  cloud:
+    config:
+      server:
+        git:
+          uri: https://example.com/dummy
+          username: dummy
+          password: dummy
+          clone-on-start: false
+  security:
+    user:
+      name: testuser
+      password: testpass
+
+eureka:
+  client:
+    enabled: false