Foreman » Installer

I think this is a job for the foreman-installer script - perhaps Kafo could return a hash of interesting data for the frontend to use as it likes?

I think kafo is the right place. It also knows the log file from kafo configuration. Let's wait for Marek.

Why would Kafo, a generic library for building application installaters, print a message specific to the Foreman Installer? I think KafoConfigure.run (which is called in /usr/bin/foreman-installer) needs to return some useful data (such as the number of errors, etc) and the the foreman-installer script can decide what to do with it. Something like

CONFIG_FILE = "/usr/share/foreman-installer/config/foreman-installer.yaml" 
result = KafoConfigure.run
if result[:exitstatus] == 0
  url = YAML.load_file(CONFIG_FILE)
  puts "Success! You can login a https://#{url}" 
else
  puts "Installation not successful - there were #{result[:num_errors]} errors - see /var/log/foreman-installer for more detail'
end
exit result[:exitstatus]

This would allow the installer script to interpret the results from Kafo in any way it chooses.

Also note that with progress bar you'll see the result so you don't need to hack foreman-installer itself.