Azure App Service, deployment slots and

To make aforementioned settings swappable, add the app setting WEBSITE_OVERRIDE_PRESERVE_DEFAULT_STICKY_SLOT_SETTINGS in every slot of the app and set its value

If everything performs as expected, you have the option to swap the content and configurations of the deployment slot with the production slot

deployment slot setting Now, we can copy the configurations and settings of production environments into the newly added slot and can deploy

deployment slot When you deploy your website to Azure App Services, you can benefit from the out of the box support for deployment slots