optional in this tutorial, it is not installed to reduce the image
size.
+The docker does not run as root, so that the files can easily be exchanged between within the container and the outer world.
+If you need to run a command as root within the container, simply type the following in another terminal to join the same container as root:
+
+.. code-block:: console
+
+ $ docker container ls
+ # This lists all containers running on your machine. For example:
+ # CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
+ # 7e921b1b18a7 simgrid/stable "bash" 7 minutes ago Up 7 minutes adoring_shamir
+
+ $ docker exec --user 0:0 -it {container_name} bash
+ # In the previous example, container_name was "adoring_shamir"
+
The code template is available under ``/source/simgrid-template-s4u.git``
in the image. You should copy it to your working directory and
recompile it when you first log in:
