👷ci: GitHub Actions: EC2 배포 워크플로우 수정

- SSH 키 base64 인코딩/디코딩 방식 적용
- StrictHostKeyChecking 옵션 추가로 초기 연결 문제 해결
- PM2 무중단 배포 단계 유지

Author: codewith-MJ

.github/workflows/deploy.yml

@@ -16,33 +16,28 @@ jobs:
       - name: Setup SSH
         run: |
           mkdir -p ~/.ssh
-          echo "${{ secrets.EC2_SSH_KEY }}" > ~/.ssh/id_rsa
+          echo "${{ secrets.EC2_SSH_KEY }}" | base64 --decode > ~/.ssh/id_rsa
           chmod 600 ~/.ssh/id_rsa
           ssh-keyscan -H ${{ secrets.EC2_HOST }} >> ~/.ssh/known_hosts
 
       - name: Deploy to EC2
         run: |
-          ssh ${{ secrets.EC2_USER }}@${{ secrets.EC2_HOST }} << 'EOF'
+          ssh -o StrictHostKeyChecking=no ${{ secrets.EC2_USER }}@${{ secrets.EC2_HOST }} << 'EOF'
             set -e
+            cd ~/ssakssak-commit
 
-            bash -l << 'INNER'
-              set -e
+            echo "📦 Pull latest code"
+            git pull origin main
 
-              cd ~/ssakssak-commit
+            echo "📦 Install dependencies"
+            npm ci
 
-              echo "📦 Pull latest code"
-              git pull origin main
+            echo "🏗 Build Next.js"
+            npm run build
 
-              echo "📦 Install dependencies"
-              npm ci
+            echo "🚀 Reload PM2 apps"
+            pm2 reload next-app || pm2 start npm --name "next-app" -- run start -- --port 3000
+            pm2 reload ssakssak-worker || pm2 start npm --name "ssakssak-worker" -- run worker:start
 
-              echo "🏗 Build Next.js"
-              npm run build
-
-              echo "🚀 Reload PM2 apps"
-              pm2 reload next-app || pm2 start npm --name "next-app" -- run start -- --port 3000
-              pm2 reload ssakssak-worker || pm2 start npm --name "ssakssak-worker" -- run worker:start
-
-              pm2 save
-            INNER
+            pm2 save
           EOF