title: How to change default network with Google-Provided Dataflow Template
body: <p>I am trying to setup a Dataflow job using the google provided template <code>PubSub to BigQuery</code>. However I am getting this error on start up:</p>
  
  <pre><code>Message: The resource 'projects/my-project/global/networks/default' was not found
  </code></pre>
  
  <p>I think the google provided template is hardcoded to use the <code>default</code> network. The error goes away if I create a <code>default</code> network in automatic mode. But we can't have a <code>default</code> network in production. </p>
  
  <p>The document <a href="https://cloud.google.com/dataflow/pipelines/specifying-exec-params" rel="nofollow noreferrer">here</a> mentions a <code>network</code> parameter. I tried adding an additional parameter called <code>network</code> from GCP console UI passing in our custom network name. But I am getting this error:</p>
  
  <pre><code>The template parameters are invalid.
  </code></pre>
  
  <p>Is there any way I can tell the Google provided Dataflow template to use my custom network(created in manual mode) instead of the <code>default</code>? What are my options here?</p>
  
  <p>Appreciate all the help!</p>