global.yaml environment variables not populated

[taljundi]

This issue is for a: (mark with an x)

- [ ] bug report -> please search issues before submitting
- [ ] feature request
- [x] documentation issue or request

Minimal steps to reproduce

Create the same pipeline structure as the project:

│   cd.yaml
│   ci.yaml
│   main.tf
│   pr-main.yaml
│   pr-production.yaml
│   provider.tf
│   README.md
│   schedule-drift.yaml
│   var.tf
│
├───stages
│       ci.yaml
│       pull-request.yaml
│
├───steps
│       confirm-kv-loaded.yaml
│       debug-vars.yaml
│       terraform-init.yaml
│       terraform-plan.yaml
│
└───vars
global.yaml

Any log messages given by the failure

In Azure DevOps pipeline, running it against the main branch, the isMain is not populated in the Debug - Branch Variables step and I get the following:

---

Debugging

isMain: isProduction: Build.SourceBranch: refs/heads/main Finishing: Debug - Branch Variables

### Expected/desired behavior
>
I expect the isMain: true

### Versions
>

Task : Bash Description : Run a Bash script on macOS, Linux, or Windows Version : 3.189.0 Author : Microsoft Corporation Help : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/bash

### Mention any other details that might be useful

> ---------------------------------------------------------------

The pipeline is fails at "Debug - Key Vault loaded?" step

---

Confirm Key Vault 🔑 Integration

KV_DEBUG_ENV: ***

⛔️ Key Vault not loaded Please double check configuration Variable Groups in Azure Pipelines UI and that the YAML pipeline is running against the 'main' or 'production' branch.

[error]Bash exited with code '1'.

Finishing: Debug - Key Vault loaded?

although $KV_DEBUG_ENV" != '$(kv-debug-env)

[taljundi]

Fix is to change the syntax in debug-vars.yaml from: ${{ variables.isMain }} to $(isMain)