CI/CD 流水线搭建 自动化部署的最佳实践。 GitHub Actions yaml name: Deploy on: push jobs: deploy: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - run: npm install - run: npm test - run: npm run build GitLab CI yaml deploy: stage: deploy script: - echo "Deploying..." only: - main 最佳实践 - 自动化测试 - 环境隔离 - 回滚机制 你的 CI/CD 流程是怎样的?