move the logic which versions are supported into the downstream concern

definitions/features/satellite.rb

@@ -11,7 +11,7 @@ class Features::Satellite < ForemanMaintain::Feature
   end
 
   def target_version
-    '6.16'
+    satellite_maintain_target_version
   end
 
   def current_version

definitions/scenarios/satellite_upgrade.rb

@@ -4,15 +4,14 @@ def self.upgrade_metadata(&block)
       metadata do
         tags :upgrade_scenario
         confine do
-          (feature(:instance).downstream&.current_minor_version == '6.15' || \
-            ForemanMaintain.upgrade_in_progress == '6.16')
+          feature(:instance).downstream&.satellite_upgrade_allowed?
         end
         instance_eval(&block)
       end
     end
 
     def target_version
-      '6.16'
+      feature(:instance).downstream&.satellite_maintain_target_version
     end
   end
 

lib/foreman_maintain/concerns/downstream.rb

@@ -1,6 +1,8 @@
 module ForemanMaintain
   module Concerns
     module Downstream
+      SATELLITE_MAINTAIN_CONFIG = '/usr/share/satellite-maintain/config.yml'.freeze
+
       def current_version
         raise NotImplementedError
       end
@@ -46,8 +48,25 @@ def fm_pkg_and_cmd_name
         %w[satellite-maintain satellite-maintain]
       end
 
+      def satellite_maintain_target_version
+        satellite_maintain_config['current_satellite_version']
+      end
+
+      def satellite_upgrade_allowed?
+        current_minor_version == satellite_maintain_config['previous_satellite_version'] ||
+          ForemanMaintain.upgrade_in_progress == satellite_maintain_target_version
+      end
+
       private
 
+      def satellite_maintain_config
+        if File.exist?(SATELLITE_MAINTAIN_CONFIG)
+          YAML.load_file(SATELLITE_MAINTAIN_CONFIG)
+        else
+          raise "Could not load satellite-maintain configuration file #{SATELLITE_MAINTAIN_CONFIG}."
+        end
+      end
+
       def rh_repos(server_version)
         server_version = version(server_version)
         rh_repos = main_rh_repos

test/definitions/scenarios/capsule_upgrade_test.rb

@@ -5,6 +5,7 @@
 
   before(:each) do
     assume_feature_present(:capsule)
+    mock_satellite_maintain_config
   end
 
   describe Scenarios::Satellite::PreUpgradeCheck do

test/definitions/scenarios/satellite_upgrade_test.rb

@@ -5,6 +5,7 @@
 
   before(:each) do
     assume_satellite_present
+    mock_satellite_maintain_config
   end
 
   describe Scenarios::Satellite::Abstract do

test/definitions/scenarios/self_upgrade_test.rb

@@ -7,6 +7,7 @@
 
   before do
     File.stubs(:exist?).with('/etc/redhat-release').returns(true)
+    mock_satellite_maintain_config
   end
 
   let(:scenario) do
@@ -59,6 +60,7 @@
 
   before do
     File.stubs(:exist?).with('/etc/redhat-release').returns(true)
+    mock_satellite_maintain_config
   end
 
   it 'runs successfully for downstream Satellite' do

test/definitions/scenarios/update_test.rb

@@ -3,6 +3,10 @@
 describe "update scenarios" do
   include DefinitionsTestHelper
 
+  before(:each) do
+    mock_satellite_maintain_config
+  end
+
   it 'runs if versions match' do
     assume_satellite_present
     Features::Instance.any_instance.expects(:current_version).returns('6.16')

test/definitions/test_helper.rb

@@ -209,6 +209,15 @@ def assume_service_missing(name, priority = 30)
       yield service if block_given?
     end
   end
+
+  def mock_satellite_maintain_config
+    config = {
+      'current_satellite_version' => '6.16',
+      'previous_satellite_version' => '6.15',
+    }
+    Features::Satellite.any_instance.stubs(:satellite_maintain_config).returns(config)
+    Features::Capsule.any_instance.stubs(:satellite_maintain_config).returns(config)
+  end
 end
 
 TEST_DIR = File.dirname(__FILE__)