title: Leave specified folder intact when publishing to Azure Web app
body: <p>I'm using VS Code with the Azure App Service extension to publish to Azure. I have tested publishing to a staging slot and swapping slots with production. All is working well so far.</p>
  
  <p>The trouble is that I have a script which uploads a new SSL certificate every 3 months (letsencrypt) to a folder called /.well-known. Each time I publish the site it's going to over-write this folder as the VS Code extension only seems capable of doing a complete publish of the whole site.</p>
  
  <p>Is there a way of somehow "protecting" this folder so it never gets swapped out or over-riden?</p>
  
  <p>I realise that if it wasn't for the automated nature of the SSL being uploaded I could just put the SSL in my repository and upload it each time. Or I could download this folder and include it in my project before each publish but this is error-prone.</p>