title: Airflow: Trigger DAG via UI with Parameters/Config
body: <p>I see that one can trigger_dag with parameters/config key-value pairs using the airflow command line:</p>
  
  <p><a href="https://stackoverflow.com/questions/53663534/for-apache-airflow-how-can-i-pass-the-parameters-when-manually-trigger-dag-via">For Apache Airflow, How can I pass the parameters when manually trigger DAG via CLI?</a></p>
  
  <p>In my case, I would like to centralize all operations for airflow via the airflow UI (preferably no CLI access should be granted), which has a button for triggering the dags:</p>
  
  <p><a href="https://i.stack.imgur.com/Pxqot.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Pxqot.png" alt="enter image description here"></a></p>
  
  <p>How can I pass the external parameters/configs via the UI?</p>