In the process of understanding the Docker OS Container paradigm, you sometimes need to have a remote shell into a Docker container. In this case I was trying to run multiple services on top of a Docker Ubuntu:Bionic container. The services would start and exit properly, when instead I wanted them to run, like a daemon. Init systems like sysVinit and systemd don’t exist in a container because that is the wrong way to think about containers and the abstraction.
Here is the command that I could get a remote shell into a Docker Ubuntu Bionic container so I could install the packages and run the commands I was trying to run and see what was happening. Then once I solved the problem I could go back and automate this solution.
sudo docker run -it ubuntu:bionic