如何编写用于部署angular universal应用程序的bitbucket管道？

我正试图通过bitbucket管道在服务器上部署angular universal应用程序。我在

bitbucket pipelines.yml

中编写了如下脚本：

pipelines:
  default:
    - step:
        name: Build app
        caches:
          - node
        script:
          - npm install
          - npm install -g @angular/cli
          - npm run build:ssr
          - npm run serve:ssr
        artifacts:
          - dist/**

My

package.json

包含以下脚本：

"scripts": {
        "ng": "ng",
        "start": "ng serve -c=dev -o",
        "build": "ng build",
        "test": "ng test",
        "lint": "ng lint",
        "e2e": "ng e2e",
        "build:ssr": "npm run build:client-and-server-bundles && npm run webpack:server",
        "serve:ssr": "node dist/server.js",
        "build:client-and-server-bundles": "ng build --prod && ng run my-app:server",
        "webpack:server": "webpack --config webpack.server.config.js --progress --colors"
    },

当执行

npm run-service:ssr

时，我看到它提供与本地主机上相同的输出，即

节点服务器监听http://localhost:4000

。它在这一点上卡住了。我做错了什么