I’ve been experimenting a bit with Discourse installation. I noticed that by default the Docker container is started with the
DISCOURSE_HOSTNAME environment variable. I tried to start the container without this env and it works fine as well.
I tried to look for this env in the code repository, but the results are not really interesting. (https://github.com/discourse/discourse/search?q=DISCOURSE_HOSTNAME)
What is the purpose of this env?