fix: github runner 재설치

.github/workflows/gradle.yml

@@ -57,40 +57,37 @@ jobs: #작업을 정의
 
         # 3. Docker 이미지 빌드
         - name: docker image build
-          run: docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/just .
+          run: docker build -t 0.0.0.0:5000/${{ secrets.DOCKERHUB_USERNAME }}/just:latest .
 
         # 4. DockerHub 로그인
         - name: docker login
           uses: docker/login-action@v2
           with:
             username: ${{ secrets.DOCKERHUB_USERNAME }}
             password: ${{ secrets.DOCKERHUB_PASSWORD }}
-        - name : docker tag
-          run: docker tag ${{ secrets.DOCKERHUB_USERNAME }}/just ${{ secrets.DOCKERHUB_USERNAME }}/just:latest
 
         # 5. Docker Hub 이미지 푸시
         - name: docker Hub push
-          run: docker push {{ secrets.DOCKERHUB_USERNAME }}/just:latest
+          run: docker push 0.0.0.0:5000/${{ secrets.DOCKERHUB_USERNAME }}/just:latest
   #
     run-docker-image-on-ec2:
       # build-docker-image (위)과정이 완료되어야 실행됩니다.
       needs: build-docker-image
       runs-on: self-hosted
 
       steps:
+        - name: docker rmi
+          run: docker rmi 0.0.0.0:5000/${{ secrets.DOCKERHUB_USERNAME }}/just:latest
         # 1. 최신 이미지를 풀받습니다
         - name: docker pull
-          run: sudo docker pull {{ secrets.DOCKERHUB_USERNAME }}/just:latest
+          run: sudo docker pull 0.0.0.0:5000/${{ secrets.DOCKERHUB_USERNAME }}/just:latest
 
         # 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 just --rm -d -p 9000:9000 ${{ secrets.DOCKERHUB_USERNAME }}/just:latest
+          run: sudo docker run 0.0.0.0:5000/${{ secrets.DOCKERHUB_USERNAME }}/just:latest
 
-        # 4. 미사용 이미지를 정리합니다
-        - name: delete old docker image
-          run: sudo docker system prune -f