feat: CI/CD #5

	name: Java CI with Gradle

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

	permissions:
	contents: read

	jobs:
	build-docker-image:
	runs-on: ubuntu-latest
	steps:
	# 1. 코드 체크아웃
	- uses: actions/checkout@v3

	# 2. Java 17 세팅
	- name: Set up JDK 17
	uses: actions/setup-java@v3
	with:
	java-version: '17'
	distribution: 'temurin'

	# 3. Spring Boot 애플리케이션 빌드
	- name: Build with Gradle
	uses: gradle/gradle-build-action@67421db6bd0bf253fb4bd25b31ebb98943c375e1
	with:
	arguments: clean bootJar

	# 4. DockerHub 로그인
	- name: docker login
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_PASSWORD }}

	# 5. Docker 이미지 빌드 및 푸시
	- name: Build and Push Docker image
	run: \|
	IMAGE_NAME=${{ secrets.DOCKERHUB_USERNAME }}/spark
	TAG=$(date +'%Y%m%d%H%M') # 현재 시간 기반 태그 생성

	# 이미지 빌드 및 태그 설정
	docker build -t $IMAGE_NAME:$TAG .
	docker tag $IMAGE_NAME:$TAG $IMAGE_NAME:latest

	# Docker Hub로 푸시
	docker push $IMAGE_NAME:$TAG
	docker push $IMAGE_NAME:latest

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