In this article we will see how to add docker support to ASP.NET core app directly from Visual Studio with just 3 Clicks without manually creating or writing any code to Dockerfile.

1. Navigate to the Solution Explorer of your project and
   Right-click on the ASP.NET project -> Select Add -> Click Docker Support
2. Choose the Target OS where the docker image will run Windows / Linux, and click OK

3. Visual Studio will create a Dockerfile for you, which specifies how to create the container image for your ASP.NET Core app project.

4. Click on the Docker button to build the image and run it inside a Docker container, rather than in IIS Express.

5. You could verify that your container is running using the Docker command-line tools; open a cmd or Terminal and type in docker container ls to view the containers.

That's it, you have successfully added Docker support to your ASP.NET core app and your app is now running inside a Docker container.