Tekton之results;一个task对应一个pod

tekton 中间参数或者数据的传递通过result来进行沟通交付

result当前 主要支持string类型和array类型，array目前还处于alpha 版本，且只支持task，不支持pipeline；如下实例：
results.array-results 存储了该task保存的数据，后续其他task可以获取
目前支持的保存字节：less than 4096 bytes
如果大于4096bytes，官方建议使用workspace：
As a general rule-of-thumb, if a result needs to be larger than a kilobyte, you should likely use a Workspace to store and pass it between Tasks within a Pipeline

kind: Task
apiVersion: tekton.dev/v1beta1
metadata:
  name: write-array
  annotations:
    description: |
      A simple task that writes array
spec:
  results:
    - name: array-results
      type: array
      description: The array results
  steps:
    - name: write-array
      image: bash:latest
      script: |
        #!/usr/bin/env bash
        echo -n "[\"hello\",\"world\"]" | tee $(results.array-results.path)