如何将复杂的DevOps管道模板参数传递给脚本 [英] How to pass complex DevOps pipeline template parameter to script

问题描述

在Azure DevOps管道模板中，我将参数声明为数组/序列

In an Azure DevOps pipeline template, I am declaring a parameter as an array/sequence

parameters:
  mySubscription: ''
  myArray: []

steps:
- AzureCLI@2
  inputs:
    azureSubscription: ${{ parameters.mySubscription }}
    scriptType: pscore
    scriptPath: $(Build.SourcesDirectory)/script.ps1
    arguments: '-MyYAMLArgument ${{ parameters.myArray }}'

然后将参数值从管道定义传递为

Value for the parameter is then passed from pipeline definition as

steps:
- template: myTemplate.yml
  parameters:
    mySubscription: 'azure-connection'
    myArray:
    - field1: 'a'
      field2: 'b'
    - field1: 'aa'
      field2: 'bb'

我的问题是我无法按YAML语法(类型为ToString())按原样传递该数组，以便能够在我的模板中使用PowerShell处理和处理该数组.尝试运行此管道时，出现以下错误: /myTemplate.yml (Line: X, Col: X): Unable to convert from Array to String. Value: Array.错误消息中引用的行/列对应于模板中的arguments: '-MyYAMLArgument ${{ parameters.myArray }}'.

My problem is I can't pass that array as-is in YAML syntax (kind of ToString()) to be able to consume and treat that array from PowerShell in my template. When trying to run this pipeline, I get the following error: /myTemplate.yml (Line: X, Col: X): Unable to convert from Array to String. Value: Array. The line/column referenced in the error message correspond to arguments: '-MyYAMLArgument ${{ parameters.myArray }}' from my template.

我还尝试将参数映射为脚本的环境

I also tried to map the parameter as an environment for my script

- AzureCLI@2
  inputs:
    azureSubscription: ${{ parameters.mySubscription }}
    scriptType: pscore
    scriptPath: $(Build.SourcesDirectory)/script.ps1
    arguments: '-MyYAMLArgument $Env:MY_ENV_VAR'
  env:
    MY_ENV_VAR: ${{ parameters.myArray }}

这也不起作用: /myTemplate.yml (Line: X, Col: Y): A sequence was not expected.该时间轴/列指的是MY_ENV_VAR: ${{ parameters.myArray }}.

This does not work too: /myTemplate.yml (Line: X, Col: Y): A sequence was not expected. That time line/column refers to MY_ENV_VAR: ${{ parameters.myArray }}.

是否有人面临过类似的要求，即将管道定义中定义的复杂类型(此处为对象的数组/对象序列)传递给PowerShell脚本?如果是这样，您是如何实现的?

Does anyone ever faced a similar requirement to pass complex types (here an array/sequence of object) defined from the pipeline definition to a PowerShell script? If so, how did you achieve it?

推荐答案

如何将复杂的DevOps管道模板参数传递给脚本

How to pass complex DevOps pipeline template parameter to script

恐怕我们无法将复杂的DevOps管道模板参数传递给PowerShell脚本.

I am afraid we could not pass complex DevOps pipeline template parameters to a PowerShell script.

当前，Azure开发人员的任务仅支持一维数组的传输.它不能接受和传送二维数组.尽管我们可以定义二维数组的参数，但是我们需要使用以下脚本从模板扩展参数:

Currently, the task of Azure devops only supports the transfer of one-dimensional arrays. It cannot accept and transfer two-dimensional arrays. Although we can define the parameters of a two-dimensional array, but we need to extend the parameters from a template by the scripts like:

- ${{ each field in parameters.myArray}}:

我们可以像这样使用它:

We could use it like:

- ${{ each step in parameters.buildSteps }}:
  #- ${{ each pair in step }}:

    - task: PowerShell@2
      inputs:
        targetType : inline
        script: |
          Write-Host 'Hello World'

但是我们不能将二维数组直接传递给任务，例如:[field1: 'a', field2: 'b'].这就是您收到错误Unable to convert from Array to String的原因.

But we could not pass the two-dimensional arrays directly to the task like: [field1: 'a', field2: 'b']. That the reason why you got the error Unable to convert from Array to String.

您可以检查文档从模板扩展以获取更多详细信息.

You could check document Extend from a template for some more details.

希望这会有所帮助.

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