Kudu is the engine behind git deployments in Azure Web Site and it can also run outside of Azure. Please click here for more details. Kudu can be used to find out an Azure App Service's OS version and all of other details like other environmental details etc. and here are the steps to check the OS system of you App Service; Login to Azure Portal with you credentials, and find your App Service. Find the publishUrl of your App Service, it should be something like this; your-app-name.scm.azurewebsites.net:443 Now simply go to this url; https://your-app-name.scm.azurewebsites.net In the Environment page, under System info, you will find the details for your system, including your Azure App Service's OS version. Hope it helps.
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