Resolve controller sharing concern

Use ClustersController as base while having Projects::ClustersController
to inform what `clusterable` is. Thanks @ayufan for the great suggestion
!

- View changes to work with new approach

- Fix javascript for new approach

- Fix feature specs for new approach

- Fix QA

1 files changed, 17 insertions, 0 deletions

diff --git a/app/controllers/projects/clusters/applications_controller.rb b/app/controllers/projects/clusters/applications_controller.rb
new file mode 100644
index 00000000000..c7b6218d007
--- /dev/null
+++ b/app/controllers/projects/clusters/applications_controller.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class Projects::Clusters::ApplicationsController < Clusters::ApplicationsController
+  include ProjectUnauthorized
+
+  prepend_before_action :project
+
+  private
+
+  def clusterable
+    @clusterable ||= ClusterablePresenter.fabricate(project, current_user: current_user)
+  end
+
+  def project
+    @project ||= find_routable!(Project, File.join(params[:namespace_id], params[:project_id]), not_found_or_authorized_proc: project_unauthorized_proc)
+  end
+end