If you have followed through the guide in Hello Docker 3, you should have a long running container now.
There are 2 common operations you want to perform when you have a running container.
Exploring the inside of a running container
What if you want to see what the environment is like inside the container? Because multiple processes can run inside the same container, you can always run an additional process in it to see what’s inside. You can even run a shell, provided that the shell’s binary executable…