Update Ci::PendingBuild async when shared runner is toggled

app/services/groups/update_shared_runners_service.rb

@@ -8,7 +8,7 @@ module Groups
       validate_params
 
       update_shared_runners
-      update_pending_builds!
+      update_pending_builds_async
 
       success
 
@@ -28,12 +28,18 @@ module Groups
       group.update_shared_runners_setting!(params[:shared_runners_setting])
     end
 
-    def update_pending_builds!
-      return unless group.previous_changes.include?('shared_runners_enabled')
+    def update_pending_builds?
+      group.previous_changes.include?('shared_runners_enabled')
+    end
+
+    def update_pending_builds_async
+      return unless update_pending_builds?
 
-      update_params = { instance_runners_enabled: group.shared_runners_enabled }
+      group.run_after_commit_or_now do |group|
+        pending_builds_params = { instance_runners_enabled: group.shared_runners_enabled }
 
-      ::Ci::UpdatePendingBuildService.new(group, update_params).execute
+        ::Ci::UpdatePendingBuildService.new(group, pending_builds_params).execute
+      end
     end
   end
 end

spec/services/groups/update_shared_runners_service_spec.rb

@@ -63,6 +63,8 @@ RSpec.describe Groups::UpdateSharedRunnersService do
           let_it_be(:pending_build_2) { create(:ci_pending_build, project: project, instance_runners_enabled: false) }
 
           it 'updates pending builds for the group' do
+            expect(::Ci::UpdatePendingBuildService).to receive(:new).and_call_original
+
             subject
 
             expect(pending_build_1.reload.instance_runners_enabled).to be_truthy
@@ -73,6 +75,8 @@ RSpec.describe Groups::UpdateSharedRunnersService do
             let(:params) { { shared_runners_setting: 'invalid_enabled' } }
 
             it 'does not update pending builds for the group' do
+              expect(::Ci::UpdatePendingBuildService).not_to receive(:new).and_call_original
+
               subject
 
               expect(pending_build_1.reload.instance_runners_enabled).to be_falsey
@@ -99,6 +103,8 @@ RSpec.describe Groups::UpdateSharedRunnersService do
           let_it_be(:pending_build_2) { create(:ci_pending_build, project: project, instance_runners_enabled: true) }
 
           it 'updates pending builds for the group' do
+            expect(::Ci::UpdatePendingBuildService).to receive(:new).and_call_original
+
             subject
 
             expect(pending_build_1.reload.instance_runners_enabled).to be_falsey