GitHub Actions를 이용한 CI/CD 구축하기: 배포 자동화의 기초

name: Java CI/CD with Gradle
 
on:
  push:
    branches: [ "main" ] # 메인 브랜치에 푸시될 때만 실행
 
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
 
    - name: Set up JDK 21
      uses: actions/setup-java@v3
      with:
        java-version: '21'
        distribution: 'temurin'
 
    - name: Build with Gradle
      run: ./gradlew build
 
    - name: Docker build & push
      run: |
        echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
        docker build -t my-app .
        docker tag my-app ${{ secrets.DOCKER_USERNAME }}/my-app:latest
        docker push ${{ secrets.DOCKER_USERNAME }}/my-app:latest
 
    - name: SSH Remote Commands (Deploy)
      uses: appleboy/[email protected]
      with:
        host: ${{ secrets.SERVER_HOST }}
        username: ${{ secrets.SERVER_USER }}
        key: ${{ secrets.SERVER_KEY }}
        script: |
          docker pull ${{ secrets.DOCKER_USERNAME }}/my-app:latest
          docker stop my-app || true
          docker rm my-app || true
          docker run -d --name my-app -p 8080:8080 ${{ secrets.DOCKER_USERNAME }}/my-app:latest