This document discusses migrating an existing .NET application that uses custom fonts and third-party dependencies to Azure App Service for Windows Containers. It provides instructions on modifying the application's Dockerfile to copy required files like fonts and MSIs into the container image. It also describes enabling features like .NET WCF in the container by specifying them in the Dockerfile. The document outlines using CI/CD pipelines to build the container image, deploy it to an Azure Container Registry, and then deploy the image to an Azure App Service.