```ruby
# frozen_string_literal: true

module Clusters
  module Concerns
    module ApplicationData
      extend ActiveSupport::Concern

      included do
        def uninstall_command
          Gitlab::Kubernetes::Helm::DeleteCommand.new(
            name: name,
            rbac: cluster.platform_kubernetes_rbac?,
            files: files
          )
        end

        def repository
          nil
        end

        def values
          File.read(chart_values_file)
        end

        def files
          @files ||= begin
            files = { 'values.yaml': values }

            files.merge!(certificate_files) if cluster.application_helm.has_ssl?

            files
          end
        end

        private

        def certificate_files
          {
            'ca.pem': ca_cert,
            'cert.pem': helm_cert.cert_string,
            'key.pem': helm_cert.key_string
          }
        end

        def ca_cert
          cluster.application_helm.ca_cert
        end

        def helm_cert
          @helm_cert ||= cluster.application_helm.issue_client_cert
        end

        def chart_values_file
          "#{Rails.root}/vendor/#{name}/values.yaml"
        end
      end
    end
  end
end
```

Make ApplicationData a plain module include
user
```ruby
# frozen_string_literal: true

module Clusters
  module Concerns
    module ApplicationData
      def uninstall_command
        Gitlab::Kubernetes::Helm::DeleteCommand.new(
          name: name,
          rbac: cluster.platform_kubernetes_rbac?,
          files: files
        )
      end

      def repository
        nil
      end

      def values
        File.read(chart_values_file)
      end

      def files
        @files ||= begin
          files = { 'values.yaml': values }

          files.merge!(certificate_files) if cluster.application_helm.has_ssl?

          files
        end
      end

      private

      def certificate_files
        {
          'ca.pem': ca_cert,
          'cert.pem': helm_cert.cert_string,
          'key.pem': helm_cert.key_string
        }
      end

      def ca_cert
        cluster.application_helm.ca_cert
      end

      def helm_cert
        @helm_cert ||= cluster.application_helm.issue_client_cert
      end

      def chart_values_file
        "#{Rails.root}/vendor/#{name}/values.yaml"
      end
    end
  end
end
```
assistant