Question

Your team's Azure Pipelines YAML uses templates to generate stages dynamically. A senior engineer wants to conditionally include an entire deployment stage based on a value that a user selects when manually queuing the pipeline, and the stage inclusion logic uses an ${{ if }} expression at the top of the template. The value currently comes from a variable defined in a variable group, but the stage is never generated even when the value matches. What change correctly makes the conditional stage generation work?

Accepted Answer

Define the value as a runtime parameter (parameters:) with allowed values so the user selects it at queue time, and reference it in the ${{ if }} expression.

Answer

Move the variable into a Key Vault-linked variable group so it is resolved earlier during pipeline initialization.

Answer

Change the ${{ if }} template expression to a runtime condition: expression on the stage referencing the variable.

Answer

Mark the variable as settableAtQueueTime and read it with the macro $(variableName) syntax inside the ${{ if }} block.