Update README.md #47

	name: Hallyugo-backend dev CI/CD Pipeline

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	# 코드 체크아웃
	- name: Checkout repository
	uses: actions/checkout@v2

	# JDK 설치
	- name: Set up JDK 21
	uses: actions/setup-java@v1
	with:
	java-version: 21

	# Gradle Build (backend 디렉토리에서 실행)
	- name: Build with Gradle
	working-directory: ./backend
	run: ./gradlew build --exclude-task test

	# DockerHub 로그인
	- name: Login to DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}

	# DockerHub Push (backend 디렉토리에서 Dockerfile 빌드)
	- name: Build and Push Docker image
	working-directory: ./backend
	run: \|
	docker build --platform linux/amd64 -t ${{ secrets.DOCKER_HUB_USERNAME }}/hallyugo-backend .
	docker push ${{ secrets.DOCKER_HUB_USERNAME }}/hallyugo-backend

	deploy:
	runs-on: ubuntu-latest
	needs: build

	steps:
	# AWS 배포
	- name: SSH to EC2 and deploy
	uses: appleboy/ssh-action@master
	with:
	host: ${{ secrets.EC2_HOST }}
	username: ${{ secrets.EC2_USERNAME }}
	key: ${{ secrets.EC2_KEY }}
	script: \|
	# 기존 컨테이너 중지 및 삭제
	cd /home/${{ secrets.EC2_USERNAME }}/hallyugo-server
	sudo docker-compose stop
	sudo docker-compose rm -f
	sudo docker rmi ${{ secrets.DOCKER_HUB_USERNAME }}/hallyugo-backend:latest

	# 최신 이미지를 받아서 Docker Compose로 재시작
	sudo docker-compose pull
	sudo docker-compose up -d

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