GCE_CD.yml

name: Deploy to GCP VM

on:
  workflow_dispatch: # 버튼 생성

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v3
      with:
        ref: ${{ github.ref_name }}  # 브랜치 자동 감지

    - name: Authenticate to Google Cloud
      uses: google-github-actions/auth@v1
      with:
        credentials_json: '${{ secrets.GCP_SA_KEY }}'

    - name: Clean up GCP authentication files
      run: |
        if gcloud auth list --format="value(account)" | grep -q '@'; then
          gcloud auth revoke --all
        fi
        rm -f ~/.config/gcloud/application_default_credentials.json


    - name: Set up Cloud SDK
      uses: google-github-actions/setup-gcloud@v1
      with:
        project_id: '${{ secrets.GCP_PROJECT_ID }}'

    - name: Generate SSH key
      run: |
        ssh-keygen -t rsa -b 2048 -f ~/.ssh/id_rsa -q -N ""

    - name: Add SSH key to GCP project metadata
      run: |
        gcloud compute project-info add-metadata --metadata "ssh-keys=${GCP_VM_USER}:$(cat ~/.ssh/id_rsa.pub)"
      env:
        GCP_VM_USER: '${{ secrets.GCP_VM_USER }}'

    - name: Copy code to GCP VM
      run: |
        gcloud compute scp --recurse --quiet ./* $GCP_VM_USER@$GCP_INSTANCE_NAME:/home/$GCP_VM_USER/app --zone $GCP_ZONE
      env:
        GCP_INSTANCE_NAME: '${{ secrets.GCP_INSTANCE_NAME }}'
        GCP_VM_USER: '${{ secrets.GCP_VM_USER }}'
        GCP_ZONE: '${{ secrets.GCP_ZONE }}'

    - name: Deploy to GCP VM
      run: |
        gcloud compute ssh $GCP_VM_USER@$GCP_INSTANCE_NAME --zone $GCP_ZONE --command "
          cd /home/$GCP_VM_USER/app &&
          sudo docker compose -f sandol/docker-compose.yml up -d --build
        "
      env:
        GCP_INSTANCE_NAME: '${{ secrets.GCP_INSTANCE_NAME }}'
        GCP_VM_USER: '${{ secrets.GCP_VM_USER }}'
        GCP_ZONE: '${{ secrets.GCP_ZONE }}'

    - name: Delete leftover GCP credential files
      run: |
        rm -f ~/app/gha-creds-*.json