Book Image

Azure Containers Explained

By : Wesley Haakman, Richard Hooper
Book Image

Azure Containers Explained

By: Wesley Haakman, Richard Hooper

Overview of this book

Whether you’re working with a start-up or an enterprise, making decisions related to using different container technologies on Azure has a notable impact your app migration and modernization strategies. This is where companies face challenges, while choosing the right solutions and deciding when to move on to the next technology. Azure Containers Explained helps you make the right architectural choices for your solutions and get well-versed with the migration path to other platforms using practical examples. You’ll begin with a recap of containers as technology and where you can store them within Azure. Next, you’ll explore the different Microsoft Azure container technologies and understand how each platform, namely Azure Container Apps, Azure Kubernetes Service (AKS), Azure Container Instances (ACI), Azure Functions, and Azure App Services, work – you’ll learn to implement them by grasping their respective characteristics and use cases. Finally, you’ll build upon your own container solution on Azure using best practices from real-world examples and successfully transform your business from a start-up to a full-fledged enterprise. By the end of this book, you’ll be able to effectively cater to your business and application needs by selecting and modernizing your apps using various Microsoft Azure container services.
Table of Contents (22 chapters)
1
Part 1: Understanding Azure Container Technologies
8
Part 2: Choosing and Applying the Right Technology
14
Part 3: Migrating Between Technologies and Beyond

Docker containers for Azure Functions

There are some particular quirks when it comes to building a container image for an Azure function. Where normally we can simply containerize the code we have built, for containers in Azure Functions apps, we have to follow some specific constructs. We have to implement the code as if we were writing an Azure function.

Now, that might sound like a very complicated thing to do, but in reality, it’s not that hard. We can use tools such as the Azure Functions Core Tools to generate the base code for our function, the Dockerfile, and add our own custom code to the function to get started.

Important note

In the previous example, we built the container image for you to get started and test. To follow the code in this chapter, you will not have to do any of the following we are about to explain. However, if you are taking this to production, it’s important to understand the basics.

To get started, we need the Azure Functions...