YAML 管道 - 设置变量并在模板表达式中使用

Question

我正在尝试在一项任务中动态设置一个变量，并在后续任务的条件下使用它。我完全可以让它发挥作用。正在设置 var 但模板没有执行。

该powershell步骤设置变量，以下步骤旨在在此变量上有条件地运行

variables:
- group: Global

trigger:
  branches:
    include:
    - master
  paths:
    include:
    - blah1/*.csv
    - blah2/*.csv

resources:
  repositories:
  - repository: Templates
    name: Templates/Templates
    type: git

pool:
  vmImage: vs2017-win2016
  demands: azureps

steps:
- powershell: |
   $CSV_File = Get-ChildItem -Recurse -Include "*.csv" | sort LastWriteTime | select -last 1
   $Subscription = [regex]::Matches(($CSV_File | select -ExpandProperty DirectoryName), "([^\\]+)$").Value

   #Set Variable for Pipeline
   Write-Host "##vso[task.setvariable variable=Subscription]$Subscription"

  displayName: 'PowerShell - Set Subscription'
  name: 'SetSubscription'

- ${{ if eq(variables['SetSubscription.Subscription'], 'DEV1') }}:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'DEV1 (GUID)'

- ${{ if eq(variables.Subscription, 'PROD1') }}:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'PROD1 (GUID)'

- ${{ if eq(variables['Subscription'], 'DEV2') }}:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'DEV2 (GUID)'

- ${{ if eq(variables['SetSubscription.Subscription'], 'PROD2') }}:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'PROD2 (GUID)'

Answer 1

EDIT: I found a way to do this in the same Build

Method 1 - Same Build

jobs:
- job: PreTasks
  steps:
  - powershell: |
      $Subscription = Get Var Command here

      #Set Variable for Pipeline
      Write-Host "##vso[task.setvariable variable=Subscription;isOutput=true]$Subscription"
    name: SetSubscription
    displayName: 'PowerShell - Set Subscription'
    env:
      AZURE_DEVOPS_EXT_PAT: $(System.AccessToken)

- job: 1
  dependsOn: PreTasks
  condition: eq(dependencies.PreTasks.outputs['SetSubscription.Subscription'], 'DEV1')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'DEV1 (GUID)'

- job: 2
  dependsOn: PreTasks
  condition: eq(dependencies.PreTasks.outputs['SetSubscription.Subscription'], 'PROD1')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'PROD1 (GUID)'

- job: 3
  dependsOn: PreTasks
  condition: eq(dependencies.PreTasks.outputs['SetSubscription.Subscription'], 'DEV2')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'DEV2 (GUID)'

- job: 4
  dependsOn: PreTasks
  condition: eq(dependencies.PreTasks.outputs['SetSubscription.Subscription'], 'PROD2')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'PROD2 (GUID)'

Method 2 - Separate Builds Thanks @4c74356b41. I ended up having to split the tasks into 2 separate builds and convert the above process into Jobs instead of Tasks. I bound a variable group to both builds and Build 1 updates the Variable in Variable Group, and Build 2 triggers from Build 1.

Build 1

- powershell: |
   echo $env:AZURE_DEVOPS_EXT_PAT | az devops login
   az devops configure -d organization=https://dev.azure.com/<Organisation>/project=<project>

   az pipelines variable-group variable update --id <VariableGroupID> --name Subscription --value $Subscription

  displayName: 'PowerShell - Set Subscription'
  env:
    AZURE_DEVOPS_EXT_PAT: $(System.AccessToken)

Build 2 - triggered from build 1

jobs:
- job: 1
  condition: eq(variables.Subscription, 'DEV1')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'DEV1 (GUID)'
- job: 2
  condition: eq(variables.Subscription, 'PROD1')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'PROD1 (GUID)'
- job: 3
  condition: eq(variables.Subscription, 'DEV2')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'DEV2 (GUID)'
- job: 4
  condition: eq(variables.Subscription, 'PROD2')
  steps:
  - template: Template/Template.yml@Templates
    parameters:
      AzureSubscription: 'PROD2 (GUID)'