It's your first day at HorribleLegacy, Inc.
You've been told to investigate a performance issue within a system written by your predecessor. This sytem has no documentation. All we know is that it relies on the following program running inside a Docker
image:
docker run gi11es/interview-exercise /usr/bin/helloworld
Ignoring the amount of time it takes to download the docker image for the first time, running the above command outputs "hello" after a while:
~ $ docker run gi11es/interview-exercise /usr/bin/helloworld
hello