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, 224 deletions

diff --git a/app/controllers/projects/clusters_controller.rb b/app/controllers/projects/clusters_controller.rb
deleted file mode 100644
index 62adc66fb09..00000000000
--- a/app/controllers/projects/clusters_controller.rb
+++ /dev/null
@@ -1,224 +0,0 @@
-# frozen_string_literal: true
-
-class Projects::ClustersController < Projects::ApplicationController
-  before_action :cluster, except: [:index, :new, :create_gcp, :create_user]
-  before_action :authorize_read_cluster!
-  before_action :generate_gcp_authorize_url, only: [:new]
-  before_action :validate_gcp_token, only: [:new]
-  before_action :gcp_cluster, only: [:new]
-  before_action :user_cluster, only: [:new]
-  before_action :authorize_create_cluster!, only: [:new]
-  before_action :authorize_update_cluster!, only: [:update]
-  before_action :authorize_admin_cluster!, only: [:destroy]
-  before_action :update_applications_status, only: [:status]
-  helper_method :token_in_session
-
-  STATUS_POLLING_INTERVAL = 10_000
-
-  def index
-    clusters = ClustersFinder.new(project, current_user, :all).execute
-    @clusters = clusters.page(params[:page]).per(20)
-  end
-
-  def new
-  end
-
-  def status
-    respond_to do |format|
-      format.json do
-        Gitlab::PollingInterval.set_header(response, interval: STATUS_POLLING_INTERVAL)
-
-        render json: ClusterSerializer
-          .new(project: @project, current_user: @current_user)
-          .represent_status(@cluster)
-      end
-    end
-  end
-
-  def show
-  end
-
-  def update
-    Clusters::UpdateService
-      .new(current_user, update_params)
-      .execute(cluster)
-
-    if cluster.valid?
-      respond_to do |format|
-        format.json do
-          head :no_content
-        end
-        format.html do
-          flash[:notice] = _('Kubernetes cluster was successfully updated.')
-          redirect_to project_cluster_path(project, cluster)
-        end
-      end
-    else
-      respond_to do |format|
-        format.json { head :bad_request }
-        format.html { render :show }
-      end
-    end
-  end
-
-  def destroy
-    if cluster.destroy
-      flash[:notice] = _('Kubernetes cluster integration was successfully removed.')
-      redirect_to project_clusters_path(project), status: :found
-    else
-      flash[:notice] = _('Kubernetes cluster integration was not removed.')
-      render :show
-    end
-  end
-
-  def create_gcp
-    @gcp_cluster = ::Clusters::CreateService
-      .new(current_user, create_gcp_cluster_params)
-      .execute(project: project, access_token: token_in_session)
-
-    if @gcp_cluster.persisted?
-      redirect_to project_cluster_path(project, @gcp_cluster)
-    else
-      generate_gcp_authorize_url
-      validate_gcp_token
-      user_cluster
-
-      render :new, locals: { active_tab: 'gcp' }
-    end
-  end
-
-  def create_user
-    @user_cluster = ::Clusters::CreateService
-      .new(current_user, create_user_cluster_params)
-      .execute(project: project, access_token: token_in_session)
-
-    if @user_cluster.persisted?
-      redirect_to project_cluster_path(project, @user_cluster)
-    else
-      generate_gcp_authorize_url
-      validate_gcp_token
-      gcp_cluster
-
-      render :new, locals: { active_tab: 'user' }
-    end
-  end
-
-  private
-
-  def cluster
-    @cluster ||= project.clusters.find(params[:id])
-                                 .present(current_user: current_user)
-  end
-
-  def update_params
-    if cluster.managed?
-      params.require(:cluster).permit(
-        :enabled,
-        :environment_scope,
-        platform_kubernetes_attributes: [
-          :namespace
-        ]
-      )
-    else
-      params.require(:cluster).permit(
-        :enabled,
-        :name,
-        :environment_scope,
-        platform_kubernetes_attributes: [
-          :api_url,
-          :token,
-          :ca_cert,
-          :namespace
-        ]
-      )
-    end
-  end
-
-  def create_gcp_cluster_params
-    params.require(:cluster).permit(
-      :enabled,
-      :name,
-      :environment_scope,
-      provider_gcp_attributes: [
-        :gcp_project_id,
-        :zone,
-        :num_nodes,
-        :machine_type,
-        :legacy_abac
-      ]).merge(
-        provider_type: :gcp,
-        platform_type: :kubernetes
-      )
-  end
-
-  def create_user_cluster_params
-    params.require(:cluster).permit(
-      :enabled,
-      :name,
-      :environment_scope,
-      platform_kubernetes_attributes: [
-        :namespace,
-        :api_url,
-        :token,
-        :ca_cert,
-        :authorization_type
-      ]).merge(
-        provider_type: :user,
-        platform_type: :kubernetes
-      )
-  end
-
-  def generate_gcp_authorize_url
-    state = generate_session_key_redirect(new_project_cluster_path(@project).to_s)
-
-    @authorize_url = GoogleApi::CloudPlatform::Client.new(
-      nil, callback_google_api_auth_url,
-      state: state).authorize_url
-  rescue GoogleApi::Auth::ConfigMissingError
-    # no-op
-  end
-
-  def gcp_cluster
-    @gcp_cluster = ::Clusters::Cluster.new.tap do |cluster|
-      cluster.build_provider_gcp
-    end
-  end
-
-  def user_cluster
-    @user_cluster = ::Clusters::Cluster.new.tap do |cluster|
-      cluster.build_platform_kubernetes
-    end
-  end
-
-  def validate_gcp_token
-    @valid_gcp_token = GoogleApi::CloudPlatform::Client.new(token_in_session, nil)
-      .validate_token(expires_at_in_session)
-  end
-
-  def token_in_session
-    session[GoogleApi::CloudPlatform::Client.session_key_for_token]
-  end
-
-  def expires_at_in_session
-    @expires_at_in_session ||=
-      session[GoogleApi::CloudPlatform::Client.session_key_for_expires_at]
-  end
-
-  def generate_session_key_redirect(uri)
-    GoogleApi::CloudPlatform::Client.new_session_key_for_redirect_uri do |key|
-      session[key] = uri
-    end
-  end
-
-  def authorize_update_cluster!
-    access_denied! unless can?(current_user, :update_cluster, cluster)
-  end
-
-  def authorize_admin_cluster!
-    access_denied! unless can?(current_user, :admin_cluster, cluster)
-  end
-
-  def update_applications_status
-    @cluster.applications.each(&:schedule_status_update)
-  end
-end