Convert clusters to use a top-level controller

In preparation so that we can create both cluster attached to project
and cluster attached to group.

- Move ClustersController to top level

- Move Clusters::ApplicationsController to top-level too

- Creates a Clusters::BaseController to share common functions

- Do not rely on @project ivar. Anything could set the ivar.

- Fix Vue page components due to new data-page value

Because of the controller change we have gone from
`projects:clusters:new` to `clusters:new`, so we need to update the file
location of the page components. There is somewhere a function that will
convert data-page to a file location.

On that note, projects/clusters/gcp/new/, translate to
Projects::Clusters::Gcp#new doesn't exist so replace that with
clusters/create_gcp/ and clusters/create_user/

1 files changed, 0 insertions, 29 deletions

diff --git a/app/controllers/projects/clusters/applications_controller.rb b/app/controllers/projects/clusters/applications_controller.rb
deleted file mode 100644
index bcea96bce94..00000000000
--- a/app/controllers/projects/clusters/applications_controller.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# frozen_string_literal: true
-
-class Projects::Clusters::ApplicationsController < Projects::ApplicationController
-  before_action :cluster
-  before_action :authorize_read_cluster!
-  before_action :authorize_create_cluster!, only: [:create]
-
-  def create
-    Clusters::Applications::CreateService
-      .new(@cluster, current_user, create_cluster_application_params)
-      .execute(request)
-
-    head :no_content
-  rescue Clusters::Applications::CreateService::InvalidApplicationError
-    render_404
-  rescue StandardError
-    head :bad_request
-  end
-
-  private
-
-  def cluster
-    @cluster ||= project.clusters.find(params[:id]) || render_404
-  end
-
-  def create_cluster_application_params
-    params.permit(:application, :hostname)
-  end
-end