环境变量是否可以在 Cloud Foundry 清单中保存数组值？

Question

I am trying to push an app into cloud foundry, and pass an array value via environment variable. But I receive yaml: unmarshal errors: line 7: cannot unmarshal !!seq into string FAILED

manifest.yml:

---
applications:
- name: my-app1     # A default name for Cloud Foundry to give your app
  memory: 128M         # The amount of RAM required for each instance
  disk_quota: 256M    # How much disk space the application needs
  no-route: true
  health-check-type: none
  buildpacks:
    - https://github.com/cloudfoundry/nodejs-buildpack
  env: 
    countries: 
      - america
      - australia
      - japan
      - nertherland      

please Note: I validated my yaml via online validators and it looks good.

Answer 1

Environment variables are an operating system concept and are passed into your application. They must be strings.

You can encode arbitrary JSON, YAML or binary data with base64 encoding as your env var value.

Inside your app, you would decode the base64 into your original string (say JSON string) and the parse it into the data structure you want (an array of strings in your case)