Are you looking for a fast and easy way to create and run .NET applications using Docker containers without writing any Dockerfile? If so, you will be glad to know that Microsoft has introduced a new feature of the .NET SDK 7.0.200 that makes it possible to create and publish OCI container images directly from your project file. We have seen how ".NET 7 SDK built-in container support and Ubuntu Chiseled" can be used together. It lets us create small and secure containers for our .NET applications easily. We went from a first docker image of 216MB down to 48.3 MB. That is more than a 77% reduction in size. .NET SDK 7.0.200 bring some new capabilities. We will explore some in this post.

Dapr is an impressive set of APIs for building distributed applications with any language and platform. It provides a set of building blocks that you can use to build microservices. Dapr is based on sidecar architecture. Meaning that you need to run a Dapr sidecar for each of your applications. How do you debug your Dapr apps effectively? If you have been using PowerShell scripts to run and attach your debugger, you know how tedious and error-prone it can be. Ready to see how to use Rider or Visual Studio to debug your Dapr apps with ease and confidence?

With my team, we like to keep our C# code base updated. So, recently we went to .NET 7 and C# 11. At the same time, we were still adopting some of the new capabilities of .NET 6 and C# 10. Our code base is large, so it takes some time. One of the new features that we planned to use was the ArgumentNullException.ThrowIfNull method, which throws an exception if an argument is null. In this post, I will show you how I effortlessly did that refactoring by letting the machine work and not the human 😁 (me). In the past, I used the same approach to migrate lots of code that used Assert.True() to Assert.That(, Is.True) and for some other even more complex cases. We will use ReSharper and Rider for that.

End of summer 2022, the .NET team at Microsoft announced two things related to containers: .NET in Chiseled Ubuntu containers and then a week after built-in container support in the .NET 7 SDK. I have talked about both topics on two episodes of the French podcast devdevdev.net by my friend Richard Clark. In this post, I will explain what those are and how to combine them.