The tutorial provides a comprehensive guide on building a custom ASP.NET Core container using Docker and deploying it on Microsoft Azure through Azure Container Registry (ACR). It covers the entire process from setting up the Azure Container Registry to host the container image, creating and running the container locally, and finally publishing the Docker image to ACR. The tutorial also explains how to create an Azure web app linked to the container image and enable continuous deployment to ensure that any updates to the container image are automatically reflected in the application. Additionally, it includes automation of the deployment process using CircleCI, with detailed instructions on setting up the CircleCI configuration, linking the GitHub repository, and managing environment variables for seamless integration. The tutorial aims to equip users with the skills to manage containerized applications efficiently on Azure, ensuring that applications remain updated with minimal manual intervention.