title: How to add variables to the data factory ARM Template
body: <p>I've got a data factory with 3 variables in the main pipeline.</p>
  
  <p>These variables contain environment settings, so I'd therefore like them to be exposed to the ARM template. When I import the ARM template to a new environment, they are not in the variables list, only "factoryid" is shown.</p>
  
  <p><a href="https://i.stack.imgur.com/grcyd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/grcyd.png" alt="enter image description here"></a></p>
  
  <p>I tried to add <code>arm-template-parameters-definition.json</code> (shown below) to my master branch, but it did not make a difference. This was recommended by <a href="https://stackoverflow.com/a/54422611/3932615">this answer</a></p>
  
  <pre><code>"Microsoft.DataFactory/factories/pipelines": {
  "properties": {
      "variables":{
          "*":{
              "defaultValue":"="
          }
      }
  }
  </code></pre>
  
  <p>}</p>
  
  <p>How do I get my variables recognized, so that I can set up environment configurations?</p>