I am trying to evaluate running Confluence Data Center in containers. I have created a custom image but is mainly based on the official container Dockerfile mainly with changes to use CentOS and a different Java distribution. I am able to get a container up and running and get through setup, but when trying to run a second container instance I just end up on the setup screen with the error "Confluence tables already exist in the selected database". What do I need to do to avoid this issue?