如果在 azure 管道问题中使用变量而不是参数

Question

I am putting following code in azure pipeline:

- ${{ if eq(variables.enableAddonVM, true) }}:     
  - template: ../task-templates/addonVM.yml
    parameters:
      serviceConnectionName: ${{ variables.serviceConnectionName }}
      customerResourceGroup: $(resourceGroupName)
      location: ${{ variables.location }} 

Following are my observations:

1. The template get skipped. I checked the value by printing it in task before it. It is showing true. Still it gets skipped.

2. I also applied condition next to template as shown below

   • template: ../task-templates/addonVM.yml

     condition: But still it get failed. We were not able to use condition after template.

3. I also checked addonVM.yml after removing condition. addonVM.yml was working propely.

So, My final question is how can insert variables within if condition? Is there some way to get rid of this problem?

Answer 1

If with variables not parameters in azure pipeline problem

It depends on whether the variable enableAddonVM already existed before compilation.

Just as jessehouwing pointed that the template variables ${{ variables.var }} are processed at compile time :

Check the document Template expression syntax for some more details.

So, if the variable enableAddonVM is generated at previous task, it could not be grabbed at compile time. That is because this variable is generated at runtime.

To resolve this issue, you could use condition , like:

  steps: 
    - template: ../task-templates/addonVM.yml
      parameters:
        serviceConnectionName: ${{ variables.serviceConnectionName }}
        customerResourceGroup: $(resourceGroupName)
        location: ${{ variables.location }} 
  condition: eq(variables.enableAddonVM, true)