azure_devops_tf_apply_with_steps.yml

- stage: Terraform_Apply
  jobs:
  - deployment: Terraform_Apply
    displayName: Terraform Apply
    pool: $(pool)
    continueOnError: 'false'
    # Run this stage if previous stage(s) succeeded and build reason ISN'T a pull request
    condition: and(succeeded(), ne(variables['Build.Reason'], 'PullRequest'))
    environment: 'YamlTerraformApplyEnvironment'
    strategy:
      runOnce:
        deploy:
          steps:
            - checkout: self
            - task: charleszipp.azure-pipelines-tasks-terraform.azure-pipelines-tasks-terraform-installer.TerraformInstaller@0
              displayName: 'Install Terraform'
              inputs:
                terraformVersion: $(terraform_version)

            - task: DownloadSecureFile@1
            (etc.)