[6주차] 전시현 / [Chore] CICD 구축

.github/workflows/dev.yml

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+name: Java CI with Gradle
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+    types: [ opened, synchronize, reopened ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      # gradle caching
+      - name: Gradle Caching
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*gradle*','**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      # Gradle Build (test는 제외)
+      - name: Build with Gradle
+        run: ./gradlew build -x test
+
+      # 도커 허브에 로그인
+      - name: Docker Hub Login
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USER_NAME }}
+          password: ${{ secrets.DOCKER_USER_TOKEN }}
+
+      - name: Docker build & push
+        run: |
+          docker build -t ${{ secrets.DOCKER_USER_NAME }}/blog-dev -f ./Dockerfile-dev .
+          docker push ${{ secrets.DOCKER_USER_NAME }}/blog-dev
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    # if: github.event_name == 'push' 테스트를 위해 주석 처리
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Copy deploy.sh to EC2
+        uses: appleboy/scp-action@master
+        with:
+          host: ${{ secrets.DEV_HOST }}
+          username: ${{ secrets.DEV_EC2_USER }}
+          key: ${{ secrets.DEV_SSH_PRIVATE_KEY }}
+          port: 22
+          source: "scripts/deploy.sh"
+          target: "/home/ubuntu"
+
+      - name: Deploy to EC2
+        uses: appleboy/[email protected]
+        with:
+          host: ${{ secrets.DEV_HOST }}
+          username: ${{ secrets.DEV_EC2_USER }}
+          key: ${{ secrets.DEV_SSH_PRIVATE_KEY }}
+          port: 22
+          script: |
+            chmod +x /home/ubuntu/scripts/deploy.sh
+            sh /home/ubuntu/scripts/deploy.sh
+          debug: true

Dockerfile-dev

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+# open jdk 21버전
+FROM openjdk:21-jdk
+
+# build가 되는 시점에 JAR_FILE이라는 변수 명에 build/libs/*.jar 선언
+# build/libs - gradle로 빌드했을 때 jar 파일이 생성되는 경로
+ARG JAR_FILE=build/libs/*.jar
+
+# JAR_FILE을 app.jar로 복사
+COPY ${JAR_FILE} docker-springboot.jar
+
+# 운영 및 개발에서 사용되는 환경 설정을 분리
+ENTRYPOINT ["java", "-jar", "-Dspring.profiles.active=dev", "/docker-springboot.jar"]

scripts/deploy.sh

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+cd /home/ubuntu/compose
+
+EXIST_BLUE=$(docker inspect -f '{{.State.Running}}' spring-blue 2>/dev/null)
+
+if [ "$EXIST_BLUE" != "true" ]; then
+  docker compose up -d spring-blue
+  BEFORE_COLOR="green"
+  AFTER_COLOR="blue"
+  BEFORE_PORT=8081
+  AFTER_PORT=8080
+else
+  docker compose up -d spring-green
+  BEFORE_COLOR="blue"
+  AFTER_COLOR="green"
+  BEFORE_PORT=8080
+  AFTER_PORT=8081
+fi
+
+echo "===== ${AFTER_COLOR} server upc(port:${AFTER_PORT}) ====="
+
+for cnt in {1..10}
+do
+  echo "===== 서버 응답 확인중(${cnt}/10) ====="
+  UP=$(curl -s http://localhost:${AFTER_PORT}/health-check)
+  if [ "$UP" != "OK" ]; then
+    sleep 10
+    continue
+  else
+    break
+  fi
+done
+
+if [ $cnt -eq 10 ]; then
+  echo "===== 서버 실행 실패 ====="
+  exit 1
+fi
+
+echo "===== Caddy 설정 변경 ====="
+sudo sed -i "s/${BEFORE_PORT}/${AFTER_PORT}/g" /etc/caddy/Caddyfile
+
+sudo caddy reload --config /etc/caddy/Caddyfile --adapter caddyfile
+
+echo "$BEFORE_COLOR server down(port:${BEFORE_PORT})"
+docker compose stop spring-${BEFORE_COLOR}
+docker compose rm -f spring-${BEFORE_COLOR}

src/main/java/com/blog/global/controller/StatusCheckController.java

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+package com.blog.global.controller;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class StatusCheckController {
+
+	@GetMapping("/health-check")
+	public ResponseEntity<String> checkHealthStatus() {
+
+		return ResponseEntity.ok("OK");
+	}
+}

src/main/resources/application-dev.yml

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+spring:
+  datasource:
+    url: ${DB_URL}
+    username: ${RDS_USER_NAME}
+    password: ${RDS_USER_PW}
+    driver-class-name: com.mysql.cj.jdbc.Driver
+  jpa:
+    show-sql: true
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.MySQLDialect
+    hibernate:
+      ddl-auto: update