title: How to get number of instances in time for Azure App Service
body: <p>I have a website hosted on Azure and I was wondering how to get some info on the number of instances in time. I'm looking for info like this.</p>
  
  <blockquote>
    <p>User XYZ changed the number of instances from 1 to 3 on 2018-09-18 10:00</p>
  </blockquote>
  
  <p>This could be very useful also when autoscaling enabled. Is this kind of info available somewhere in the Azure portal? I was looking into Activity log and there seems to be some "Update hosting plan" operation but can't read the number of instances from it.</p>