Chapter 3: Deploying Web Applications as Containers

1. Azure Container Registry is an Azure service, which acts as a Docker private registry that's hosted in the cloud. It is seamlessly integrated with other Azure container services.
2. Admin login is a feature that allows you to authenticate in ACR using the registry name as a username and a key as a password.
3. To run containers in App Service, you have to choose Docker as the OS.
4. Yes, you can—in fact, there are both possibilities (public/private) available.
5. Yes, you can—there is a specific blade available for scaling your instance.
6. To update an application in AKS cluster and limit downtime, you have to have multiple pods deployed with the same application.
7. You have to create a service principal, which will be used during authentication.