feat: deploy.yml 추가 (#21)

.github/workflows/deploy.yml

@@ -0,0 +1,75 @@
+name: Java CI with Gradle
+
+# 동작 조건 설정 : main 브랜치에 push 혹은 pull request가 발생할 경우 동작한다.
+on:
+  push:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  # Spring Boot 애플리케이션을 빌드하여 도커허브에 푸시하는 과정
+  build-docker-image:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      # 1. Java 17 세팅
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      ## create application-database.yaml
+      - name: create application.properties file
+        run: |
+          mkdir ./src/main/resources
+          touch ./src/main/resources/application.yml
+          echo "${{ secrets.APPLICATION_YML }}" >> src/main/resources/application.yml
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x ./gradlew
+        shell: bash
+
+      # 2. Spring Boot 애플리케이션 빌드
+      - name: Build with Gradle
+        uses: gradle/gradle-build-action@67421db6bd0bf253fb4bd25b31ebb98943c375e1
+        with:
+          arguments: clean bootJar
+
+      # 3. Docker 이미지 빌드
+      - name: docker image build
+        run: docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/finfellow .
+
+      # 4. DockerHub 로그인
+      - name: docker login
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      # 5. Docker Hub 이미지 푸시
+      - name: docker Hub push
+        run: docker push ${{ secrets.DOCKERHUB_USERNAME }}/finfellow
+
+  run-docker-image-on-ec2:
+    needs: build-docker-image
+    runs-on: self-hosted
+
+    steps:
+      # 1. 최신 이미지를 풀받습니다
+      - name: docker pull
+        run: sudo docker pull ${{ secrets.DOCKERHUB_USERNAME }}/finfellow
+
+      # 2. 기존의 컨테이너를 중지시킵니다
+      - name: docker stop container
+        run: sudo docker stop $(sudo docker ps -q) 2>/dev/null || true
+
+      # 3. 최신 이미지를 컨테이너화하여 실행시킵니다
+      - name: docker run new container
+        run: sudo docker run --name finfellow --rm -d -p 80:8080 ${{ secrets.DOCKERHUB_USERNAME }}/finfellow
+
+      # 4. 미사용 이미지를 정리합니다
+      - name: delete old docker image
+        run: sudo docker system prune -f