Can Discourse ship frequent Docker images that do not need to be bootstrapped?

I fail to see how docker-compose would solve that problem – it won’t magically allow two processes to bind to the same port. Either way, you will need to set up a proxy that can route incoming requests.

The howto could certainly benefit from a section on how to proceed if Discourse is not already set up, but I currently don’t have the time to describe that properly. A short version boils down to this:

  • Follow normal instructions, stopping just before executing discourse-setup.
  • Copy /var/discourse/samples/standalone.yml to /var/discourse/containers/app.yml.
  • Fill in the necessary settings in /var/discourse/containers/app.yml. Be careful, you cannot test this yet!
  • Then continue with the howto, beginning with installing Nginx.
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