Refactor GitHub Actions workflow for EC2 deployment

Author: Danto7632

.github/workflows/deploy.yml

@@ -1,70 +1,26 @@
-name: Build & Deploy Backend (GHCR → EC2)
+name: Deploy to EC2
 
 on:
   push:
-    branches: [ main ]
-
-permissions:
-  contents: read
-  packages: write
-
-# (선택) 동시 배포 충돌 방지
-concurrency:
-  group: debugvisual-ec2-deploy
-  cancel-in-progress: true
+    branches:
+      - main    # main 브랜치 push 시 자동 배포
 
 jobs:
-  build-push-deploy:
+  deploy:
+    name: Deploy to EC2 Server
     runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      # (Spring) 빌드
-      - uses: actions/setup-java@v4
-        with:
-          distribution: temurin
-          java-version: 17
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*','**/gradle-wrapper.properties') }}
-      - run: ./gradlew clean bootJar --no-daemon
 
-      # GHCR 로그인(액션에서만 필요)
-      - uses: docker/setup-buildx-action@v3
-      - uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      # 이미지 푸시 (latest + sha)
-      - uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          tags: |
-            ghcr.io/dmu-debugvisual/debugvisual-backend:latest
-            ghcr.io/dmu-debugvisual/debugvisual-backend:${{ github.sha }}
-
-      # EC2 배포 (익명 pull)
-      - name: Deploy on EC2 (compose pull/up)
-        uses: appleboy/ssh-action@v1.2.0
-        with:
-          host: ${{ secrets.EC2_HOST }}
-          username: ${{ secrets.EC2_USER }}     # ec2-user
-          key: ${{ secrets.EC2_KEY }}           # PEM 전체 내용
-          script: |
-            set -e
-            LOCK=/tmp/debugvisual.deploy.lock
-            (
-              flock -n 9 || { echo 'Another deploy is running. Skip.'; exit 0; }
-              cd ~/apps/debugvisual
-              docker logout ghcr.io || true     # 익명 pull 강제
-              docker compose pull --ignore-pull-failures backend
-              docker compose up -d --wait --remove-orphans backend
-              docker image prune -af || true
-              curl -skI https://api.zivorp.com/healthz | head -n1
-            ) 9>$LOCK
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up SSH key
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.EC2_KEY }}" > ~/.ssh/id_rsa
+          chmod 600 ~/.ssh/id_rsa
+          ssh-keyscan -H ${{ secrets.EC2_HOST }} >> ~/.ssh/known_hosts
+
+      - name: SSH and deploy
+        run: |
+          ssh ${{ secrets.EC2_USER }}@${{ secrets.EC2_HOST }} "cd ~ && ./deploy.sh"