I ended up getting Discourse over to my Cent 7 server, by pushing the current container to our registry, and copying the entire /var/docker directory over. I am able to get a functioning version of our Discourse working that way. I am still unable to update discourse due to the following error:
Pups::ExecError: /root/upgrade_postgres failed with return #<Process::Status: pid 40 exit 1>
Location of failure: /pups/lib/pups/exec_command.rb:108:in `spawn'
exec failed with the params "/root/upgrade_postgres"
e68c256f43b7101b5c7003b8db31b80ac83e845999e9f15bec369592d9d04649
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one
This using the update method:
./launcher stop discourse
git pull
./launcher rebuild discourse
This of course leads me back to my loop placing the 9.3 postgres template in my discourse.yml and bootstrap failing again due to apt errors.
I am attempting to disable HSTS now to see if I can get the app to rebuild that way.