app/models/concerns/foreman_uuid_boot/host_discovered_extensions.rb

+# frozen_string_literal: true
+
+module ForemanUuidBoot
+  module HostDiscoveredExtensions
+    def populate_fields_from_facts(parser, type, source_proxy)
+      super
+      populate_facet_fields(parser, type, source_proxy)
+    end
+  end
+end

lib/foreman_uuid_boot/engine.rb

@@ -4,6 +4,7 @@ module ForemanUuidBoot
   class Engine < ::Rails::Engine
     engine_name 'foreman_uuid_boot'
 
+    config.autoload_paths += Dir["#{config.root}/app/models/concerns"]
     config.autoload_paths += Dir["#{config.root}/app/services/foreman/unattended_installation/concerns"]
 
     initializer 'foreman_uuid_boot.load_app_instance_data' do |app|
@@ -17,13 +18,27 @@ module ForemanUuidBoot
         requires_foreman '>= 2.5'
 
         register_facet ForemanUuidBoot::UuidbootHostFacet, :uuidboot_facet do
-          set_dependent_action :destroy
+          configure_host do
+            set_dependent_action :destroy
+          end
         end
       end
     end
 
     config.to_prepare do
       ::Foreman::UnattendedInstallation::HostFinder.prepend ForemanUuidBoot::HostFinderExtensions
+
+      # Slight hack for foreman_discovery - to store UUID for provision
+      begin
+        # Ensure that Host::Discovered applies host facets
+        unless ::Host::Discovered.include? Facets::ModelExtensionsBase
+          ::Host::Discovered.include SelectiveClone
+          ::Host::Discovered.include Facets::ManagedHostExtensions
+          ::Host::Discovered.prepend ForemanUuidBoot::HostDiscoveredExtensions
+        end
+      rescue NameError => e
+        Rails.logger.warn "ForemanUuidBoot: Discovery not installed(#{e}), skipping discovery extensions"
+      end
     rescue StandardError => e
       Rails.logger.warn "ForemanUuidBoot: skipping engine hook(#{e})"
     end

lib/foreman_uuid_boot/version.rb

 # frozen_string_literal: true
 
 module ForemanUuidBoot
-  VERSION = '0.3.0'
+  VERSION = '0.4.0'
 end