Using ARM template to swap App Service deployment slots

Azure Resource Manager (ARM) templates are used to automate deployment and configuration of Azure resources. With the templates you can define the infrastructure to be deployed via a JSON file and then use that file to repeatedly deploy new resources or update existing ones. ARM templates are widely used to release new versions of the Azure web apps and function apps. During a release the new version of an app is deployed to a staging slot and then it is swapped into production. This blog post explains how to automate the App Service deployment slot swap operation with an ARM template.

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