Intresting . I havent seen this go style templating with DABS . Typically you would define your variables in databricks.yml and then override the variable per environment . 

# databricks.yml

variables:
  job_pause_status:
    description: Pause/unpause job schedule by environment
    default: PAUSED   # sensible default

resources:
  jobs:
    job_name:
      name: job_name
      schedule:
        quartz_cron_expression: "0 0 8 * * ?"
        timezone_id: "UTC"
        pause_status: ${var.job_pause_status}

Override per target 

targets:
  dev:
    mode: development
    default: true
    variables:
      job_pause_status: PAUSED

  qa:
    mode: development
    variables:
      job_pause_status: PAUSED

  prd:
    mode: production
    variables:
      job_pause_status: UNPAUSED