title: Execute internal server script in grafana
body: <p>I would like to know how to execute a script in response to an alert in Grafana. <br>
  I want to execute the script in a shell when the temperature is greater than 25C. The script connects to an ESX server and turns off all VM's.
  <p>
  I've created the script that connects to the ESX server, but I'm not sure how to call it from Grafana.</p>