The other day, I was building some infrastructure on Azure that contained an Azure App Service. I wanted to use a custom domain so that users can use the application over a nice domain name instead of the *.azurewebsites.net. The infrastructure is built using Terraform; luckily, there is a provider for Cloudflare. Cloudflare is where the domain’s DNS is managed. This blog post will walk you through the steps to do all the configuration.