🐛 Fix: docker-compose 속 변수 환경변수로 주입

Author: zjhj0814

.github/workflows/github-actions.yml

@@ -72,7 +72,6 @@ jobs:
           script: |
             set -e
             APP_DIR=/home/ubuntu/interview-be
-            IMAGE=${{ secrets.DOCKER_USERNAME }}/interview-be-service
             
             mkdir -p $APP_DIR
             cd $APP_DIR
@@ -83,6 +82,9 @@ jobs:
             EOF
             chmod 600 .env
             
+            # docker-compose.yml 속 DOCKER_USERNAME 환경변수로 주입
+            export DOCKER_USERNAME="${{ secrets.DOCKER_USERNAME }}"
+            
             # 최신 이미지 pull & app 교체
             echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
             docker compose pull app