How to run ubuntu in a docker container?

@enrico 

To run an Ubuntu Docker container, you need to have Docker installed on your system. If you don't have Docker installed, you can follow the instructions on the Docker website to install it.

Once you have Docker installed, you can start by pulling the Ubuntu image from the Docker registry. You can do this by running the following command:

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docker pull ubuntu

This will download the latest version of the Ubuntu image to your system. Once the image is downloaded, you can run a container using the image by using the docker run command. For example:

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docker run -it ubuntu

This will start an Ubuntu container and open a terminal inside the container. From here, you can run any command that you would normally run on an Ubuntu system.

Keep in mind that any changes you make inside the container will be lost when the container is stopped. To save changes, you can either commit them to a new Docker image or use Docker volumes to persist data outside of the container. For more information on how to do this, see the Docker documentation.