GitLab CI 多阶段构建与缓存/工件管理实践

.gitlab-ci.yml 示例：stages: - build - test - deploy default: image: node:20-alpine cache: key: "v1-$CI_COMMIT_REF_SLUG" paths: - node_modules/ - build/ policy: pull-push variables: NODE_ENV: production build: stage: build script: - npm ci - npm run build artifacts: paths: - build/ expire_in: 1 week test: stage: test script: - npm run test -- --ci dependencies: - build deploy: stage: deploy rules: - if: "$CI_COMMIT_BRANCH == 'main'" script: - echo Deploying dependencies: - build