파이프라인

# GitHub Actions CI/CD Pipeline
name: CI/CD Pipeline

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  # 1. 테스트 스테이지
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run linter
        run: npm run lint

      - name: Run tests
        run: npm run test:ci

      - name: Upload coverage
        uses: codecov/codecov-action@v3

  # 2. 빌드 스테이지
  build:
    needs: test
    runs-on: ubuntu-latest
    outputs:
      image_tag: ${{ steps.meta.outputs.tags }}
    steps:
      - uses: actions/checkout@v4

      - name: Login to Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  # 3. 배포 스테이지 (Staging)
  deploy-staging:
    needs: build
    runs-on: ubuntu-latest
    environment: staging
    steps:
      - name: Deploy to Staging
        run: |
          kubectl set image deployment/web \
            web=${{ needs.build.outputs.image_tag }}

  # 4. 배포 스테이지 (Production - 수동 승인)
  deploy-production:
    needs: [build, deploy-staging]
    runs-on: ubuntu-latest
    environment: production  # 승인 필요
    if: github.ref == 'refs/heads/main'
    steps:
      - name: Deploy to Production
        run: |
          kubectl set image deployment/web \
            web=${{ needs.build.outputs.image_tag }}