The scenario:
I have an Azure App Service that is hosting 5 different WebJobs. I have configured a release on Visual Studio Team Services (VSTS) to deploy each WebJob to Azure, independently from each other.
The problem:
Deploying a WebJob deletes the other WebJobs that were already deployed!!!
Solution:
Tick the “Set DoNotDelete flag” – current files/folders in the App Service in will be preserved while publishing website.
Rui Jarimba 