cd.yml

name: CD
on:
  workflow_run:
    workflows: ["CI with Gradle"]
    types: [completed]
    branches: [main]

permissions:
  contents: read

env:
  IMAGE: ${{ secrets.DOCKER_USERNAME }}/mobile

jobs:
  deploy:
    name: Deploy to Server
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Deploy over SSH
        uses: appleboy/ssh-action@v1.2.0
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          port: 22
          script: |
            set -e
            
            cd ~/mobile
            
            echo "${{ secrets.ENV_FILE }}" > .env
            
            # >> 는 파일 내용을 덮어쓰지 않고 맨 뒤에 추가(append)하는 명령어입니다.
            echo "DOCKER_USERNAME=${{ secrets.DOCKER_USERNAME }}" >> .env
            
            if [ -n "${{ secrets.DOCKER_PASSWORD }}" ]; then
              echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
            fi
            
            echo "[1/3] Pull latest Docker image..."
            docker compose pull spring
            
            echo "[2/3] Restart services with new image..."
            docker compose up -d --no-deps spring 
            
            echo "[3/3] Cleanup unused images..."
            docker image prune -f