Move cluster health dashboard to the core

In order to make clustr health dashbaord available to all users
we need to move #mertics_dashboard endpoint out of ee module

app/controllers/admin/clusters_controller.rb

@@ -10,6 +10,11 @@ class Admin::ClustersController < Clusters::ClustersController
   def clusterable
     @clusterable ||= InstanceClusterablePresenter.fabricate(Clusters::Instance.new, current_user: current_user)
   end
-end
 
-Admin::ClustersController.prepend_if_ee('EE::Admin::ClustersController')
+  def metrics_dashboard_params
+    {
+      cluster: cluster,
+      cluster_type: :admin
+    }
+  end
+end

app/controllers/clusters/clusters_controller.rb

@@ -3,6 +3,7 @@
 class Clusters::ClustersController < Clusters::BaseController
   include RoutableActions
   include Metrics::Dashboard::PrometheusApiProxy
+  include MetricsDashboard
 
   before_action :cluster, only: [:cluster_status, :show, :update, :destroy, :clear_cache]
   before_action :generate_gcp_authorize_url, only: [:new]

app/controllers/groups/clusters_controller.rb

@@ -17,6 +17,12 @@ class Groups::ClustersController < Clusters::ClustersController
   def group
     @group ||= find_routable!(Group, params[:group_id] || params[:id])
   end
-end
 
-Groups::ClustersController.prepend_if_ee('EE::Groups::ClustersController')
+  def metrics_dashboard_params
+    {
+      cluster: cluster,
+      cluster_type: :group,
+      group: group
+    }
+  end
+end

app/controllers/projects/clusters_controller.rb

@@ -23,6 +23,13 @@ class Projects::ClustersController < Clusters::ClustersController
   def repository
     @repository ||= project.repository
   end
-end
 
-Projects::ClustersController.prepend_if_ee('EE::Projects::ClustersController')
+  def metrics_dashboard_params
+    params.permit(:embedded, :group, :title, :y_label).merge(
+      {
+        cluster: cluster,
+        cluster_type: :project
+      }
+    )
+  end
+end

app/models/clusters/cluster.rb

@@ -344,6 +344,10 @@ module Clusters
       Feature.enabled?(:managed_apps_local_tiller, clusterable, default_enabled: true)
     end
 
+    def prometheus_adapter
+      application_prometheus
+    end
+
     private
 
     def unique_management_project_environment_scope

app/presenters/clusterable_presenter.rb

@@ -64,6 +64,10 @@ class ClusterablePresenter < Gitlab::View::Presenter::Delegated
     raise NotImplementedError
   end
 
+  def metrics_dashboard_path(cluster)
+    raise NotImplementedError
+  end
+
   # Will be overridden in EE
   def environments_cluster_path(cluster)
     nil

app/presenters/clusters/cluster_presenter.rb

@@ -64,8 +64,27 @@ module Clusters
       !cluster.provided_by_user?
     end
 
+    def health_data(clusterable)
+      {
+        'clusters-path': clusterable.index_path,
+        'dashboard-endpoint': clusterable.metrics_dashboard_path(cluster),
+        'documentation-path': help_page_path('user/project/clusters/index', anchor: 'monitoring-your-kubernetes-cluster-ultimate'),
+        'empty-getting-started-svg-path': image_path('illustrations/monitoring/getting_started.svg'),
+        'empty-loading-svg-path': image_path('illustrations/monitoring/loading.svg'),
+        'empty-no-data-svg-path': image_path('illustrations/monitoring/no_data.svg'),
+        'empty-unable-to-connect-svg-path': image_path('illustrations/monitoring/unable_to_connect.svg'),
+        'settings-path': '',
+        'project-path': '',
+        'tags-path': ''
+      }
+    end
+
     private
 
+    def image_path(path)
+      ActionController::Base.helpers.image_path(path)
+    end
+
     def clusterable
       if cluster.group_type?
         cluster.group

app/presenters/group_clusterable_presenter.rb

@@ -43,6 +43,10 @@ class GroupClusterablePresenter < ClusterablePresenter
   def learn_more_link
     link_to(s_('ClusterIntegration|Learn more about group Kubernetes clusters'), help_page_path('user/group/clusters/index'), target: '_blank', rel: 'noopener noreferrer')
   end
+
+  def metrics_dashboard_path(cluster)
+    metrics_dashboard_group_cluster_path(clusterable, cluster)
+  end
 end
 
 GroupClusterablePresenter.prepend_if_ee('EE::GroupClusterablePresenter')

app/presenters/instance_clusterable_presenter.rb

@@ -81,6 +81,10 @@ class InstanceClusterablePresenter < ClusterablePresenter
   def learn_more_link
     link_to(s_('ClusterIntegration|Learn more about instance Kubernetes clusters'), help_page_path('user/instance/clusters/index'), target: '_blank', rel: 'noopener noreferrer')
   end
+
+  def metrics_dashboard_path(cluster)
+    metrics_dashboard_admin_cluster_path(cluster)
+  end
 end
 
 InstanceClusterablePresenter.prepend_if_ee('EE::InstanceClusterablePresenter')

app/presenters/project_clusterable_presenter.rb

@@ -38,6 +38,10 @@ class ProjectClusterablePresenter < ClusterablePresenter
   def learn_more_link
     link_to(s_('ClusterIntegration|Learn more about Kubernetes'), help_page_path('user/project/clusters/index'), target: '_blank', rel: 'noopener noreferrer')
   end
+
+  def metrics_dashboard_path(cluster)
+    metrics_dashboard_project_cluster_path(clusterable, cluster)
+  end
 end
 
 ProjectClusterablePresenter.prepend_if_ee('EE::ProjectClusterablePresenter')

changelogs/unreleased/mwaw-208224-move-cluster-metrics-dashboard-endpoint-into-gitlab-core-BE.yml

+---
+title: Open source cluster health dashboard and make it available to all users
+merge_request: 35721
+author:
+type: changed

config/routes.rb

@@ -190,7 +190,6 @@ Rails.application.routes.draw do
       member do
         Gitlab.ee do
           get :metrics, format: :json
-          get :metrics_dashboard
           get :environments, format: :json
         end
 
@@ -200,6 +199,7 @@ Rails.application.routes.draw do
           delete '/:application', to: 'clusters/applications#destroy', as: :uninstall_applications
         end
 
+        get :metrics_dashboard
         get :'/prometheus/api/v1/*proxy_path', to: 'clusters#prometheus_proxy', as: :prometheus_api
         get :cluster_status, format: :json
         delete :clear_cache

ee/app/controllers/ee/admin/clusters_controller.rb

-# frozen_string_literal: true
-
-module EE
-  module Admin
-    module ClustersController
-      def metrics_dashboard_params
-        {
-          cluster: cluster,
-          cluster_type: :admin
-        }
-      end
-    end
-  end
-end

ee/app/controllers/ee/clusters/clusters_controller.rb

@@ -3,7 +3,6 @@
 module EE
   module Clusters
     module ClustersController
-      include MetricsDashboard
       extend ActiveSupport::Concern
 
       prepended do

ee/app/controllers/ee/groups/clusters_controller.rb

-# frozen_string_literal: true
-
-module EE
-  module Groups
-    module ClustersController
-      extend ActiveSupport::Concern
-
-      def metrics_dashboard_params
-        {
-          cluster: cluster,
-          cluster_type: :group,
-          group: group
-        }
-      end
-    end
-  end
-end

ee/app/controllers/ee/projects/clusters_controller.rb

-# frozen_string_literal: true
-
-module EE
-  module Projects
-    module ClustersController
-      def metrics_dashboard_params
-        params.permit(:embedded, :group, :title, :y_label).merge(
-          {
-            cluster: cluster,
-            cluster_type: :project
-          }
-        )
-      end
-    end
-  end
-end

ee/app/models/ee/clusters/cluster.rb

@@ -8,10 +8,6 @@ module EE
       prepended do
         include UsageStatistics
       end
-
-      def prometheus_adapter
-        application_prometheus
-      end
     end
   end
 end

ee/app/presenters/ee/clusterable_presenter.rb

@@ -5,9 +5,5 @@ module EE
     def metrics_cluster_path(cluster, params = {})
       raise NotImplementedError
     end
-
-    def metrics_dashboard_path(cluster)
-      raise NotImplementedError
-    end
   end
 end

ee/app/presenters/ee/clusters/cluster_presenter.rb

@@ -3,30 +3,19 @@
 module EE
   module Clusters
     module ClusterPresenter
+      extend ::Gitlab::Utils::Override
+
+      override :health_data
       def health_data(clusterable)
-        {
-          'clusters-path': clusterable.index_path,
+        super.merge(
           'metrics-endpoint': clusterable.metrics_cluster_path(cluster, format: :json),
-          'dashboard-endpoint': clusterable.metrics_dashboard_path(cluster),
-          'documentation-path': help_page_path('user/project/clusters/index', anchor: 'monitoring-your-kubernetes-cluster'),
-          'empty-getting-started-svg-path': image_path('illustrations/monitoring/getting_started.svg'),
-          'empty-loading-svg-path': image_path('illustrations/monitoring/loading.svg'),
-          'empty-no-data-svg-path': image_path('illustrations/monitoring/no_data.svg'),
-          'empty-unable-to-connect-svg-path': image_path('illustrations/monitoring/unable_to_connect.svg'),
-          'settings-path': '',
-          'project-path': '',
-          'tags-path': '',
           'alerts-endpoint': alerts_endpoint,
           'prometheus-alerts-available': prometheus_alerts_available
-        }
+        )
       end
 
       private
 
-      def image_path(path)
-        ActionController::Base.helpers.image_path(path)
-      end
-
       def alerts_endpoint
         '/' if ::Feature.enabled?(:prometheus_computed_alerts)
       end

ee/app/presenters/ee/group_clusterable_presenter.rb

@@ -16,11 +16,6 @@ module EE
       environments_group_cluster_path(clusterable, cluster)
     end
 
-    override :metrics_dashboard_path
-    def metrics_dashboard_path(cluster)
-      metrics_dashboard_group_cluster_path(clusterable, cluster)
-    end
-
     private
 
     def can_read_cluster_environments?

ee/app/presenters/ee/instance_clusterable_presenter.rb

@@ -16,11 +16,6 @@ module EE
       environments_admin_cluster_path(cluster)
     end
 
-    override :metrics_dashboard_path
-    def metrics_dashboard_path(cluster)
-      metrics_dashboard_admin_cluster_path(cluster)
-    end
-
     private
 
     def can_read_cluster_environments?

ee/app/presenters/ee/project_clusterable_presenter.rb

@@ -8,10 +8,5 @@ module EE
     def metrics_cluster_path(cluster, params = {})
       metrics_project_cluster_path(clusterable, cluster, params)
     end
-
-    override :metrics_dashboard_path
-    def metrics_dashboard_path(cluster)
-      metrics_dashboard_project_cluster_path(clusterable, cluster)
-    end
   end
 end

ee/lib/ee/banzai/filter/inline_metrics_redactor_filter.rb

@@ -11,8 +11,7 @@ module EE
         override :permissions_by_route
         def permissions_by_route
           super.concat([
-            ROUTE.new(::Gitlab::Metrics::Dashboard::Url.alert_regex, :read_prometheus_alerts),
-            ROUTE.new(::Gitlab::Metrics::Dashboard::Url.clusters_regex, :read_cluster)
+            ROUTE.new(::Gitlab::Metrics::Dashboard::Url.alert_regex, :read_prometheus_alerts)
           ])
         end
       end

ee/lib/ee/banzai/pipeline/gfm_pipeline.rb

@@ -10,7 +10,6 @@ module EE
           def metrics_filters
             [
               ::Banzai::Filter::InlineAlertMetricsFilter,
-              ::Banzai::Filter::InlineClusterMetricsFilter,
               *super
             ]
           end

ee/spec/controllers/admin/clusters_controller_spec.rb

@@ -27,10 +27,6 @@ RSpec.describe Admin::ClustersController do
     before do
       allow(::Clusters::Instance).to receive(:new).and_return(cluster.instance)
     end
-
-    describe 'GET #metrics_dashboard' do
-      it_behaves_like 'the default dashboard'
-    end
   end
 
   describe 'GET environments' do

ee/spec/controllers/groups/clusters_controller_spec.rb

@@ -33,34 +33,6 @@ RSpec.describe Groups::ClustersController do
       clusterable.add_maintainer(user)
     end
 
-    context 'with inappropriate requests' do
-      context 'with anoymous user' do
-        before do
-          sign_out(user)
-        end
-
-        it 'renders not found' do
-          get :prometheus_proxy, params: prometheus_proxy_params
-
-          expect(response).to have_gitlab_http_status(:not_found)
-        end
-
-        context 'with invalid clusterable id' do
-          before do
-            sign_in(user)
-          end
-
-          let(:other_clusterable) { create(:group) }
-
-          it 'returns 404' do
-            get :prometheus_proxy, params: prometheus_proxy_params(id: other_clusterable.id)
-
-            expect(response).to have_gitlab_http_status(:not_found)
-          end
-        end
-      end
-    end
-
     describe 'security' do
       let(:prometheus_adapter) { double(:prometheus_adapter, can_query?: true, query: nil) }
 
@@ -78,28 +50,6 @@ RSpec.describe Groups::ClustersController do
       it { expect { go }.to be_denied_for(:user) }
       it { expect { go }.to be_denied_for(:external) }
     end
-
-    describe 'GET #metrics_dashboard' do
-      let(:user) { create(:user) }
-
-      before do
-        clusterable.add_maintainer(user)
-        sign_in(user)
-      end
-
-      it_behaves_like 'the default dashboard'
-    end
-  end
-
-  private
-
-  def prometheus_proxy_params(params = {})
-    {
-      id: cluster.id.to_s,
-      group_id: group.name,
-      proxy_path: 'query',
-      query: '1'
-    }.merge(params)
   end
 
   describe 'GET environments' do

ee/spec/controllers/projects/clusters_controller_spec.rb

@@ -47,28 +47,5 @@ RSpec.describe Projects::ClustersController do
       it { expect { go }.to be_denied_for(:user) }
       it { expect { go }.to be_denied_for(:external) }
     end
-
-    describe 'GET #metrics_dashboard' do
-      let(:user) { create(:user) }
-
-      before do
-        clusterable.add_maintainer(user)
-        sign_in(user)
-      end
-
-      it_behaves_like 'the default dashboard'
-    end
-  end
-
-  private
-
-  def prometheus_proxy_params(params = {})
-    {
-      id: cluster.id.to_s,
-      namespace_id: project.namespace.full_path,
-      project_id: project.name,
-      proxy_path: 'query',
-      query: '1'
-    }.merge(params)
   end
 end

ee/spec/lib/banzai/filter/inline_metrics_redactor_filter_spec.rb

@@ -27,24 +27,4 @@ RSpec.describe Banzai::Filter::InlineMetricsRedactorFilter do
     it_behaves_like 'redacts the embed placeholder'
     it_behaves_like 'retains the embed placeholder when applicable'
   end
-
-  context 'for a cluster metric embed' do
-    let_it_be(:cluster) { create(:cluster, :provided_by_gcp, :project, projects: [project]) }
-    let(:params) { [project.namespace.path, project.path, cluster.id] }
-    let(:query_params) { { group: 'Cluster Health', title: 'CPU Usage', y_label: 'CPU (cores)' } }
-    let(:url) { urls.metrics_namespace_project_cluster_url(*params, **query_params) }
-
-    context 'with user who can read cluster' do
-      it_behaves_like 'redacts the embed placeholder'
-      it_behaves_like 'retains the embed placeholder when applicable'
-    end
-
-    context 'without user who can read cluster' do
-      let(:doc) { filter(input, current_user: create(:user)) }
-
-      it 'redacts the embed placeholder' do
-        expect(doc.to_s).to be_empty
-      end
-    end
-  end
 end

ee/spec/presenters/ee/clusters/cluster_presenter_spec.rb

@@ -17,18 +17,8 @@ RSpec.describe Clusters::ClusterPresenter do
       subject { cluster_presenter.health_data(clusterable_presenter) }
 
       it do
-        is_expected.to match(
-          'clusters-path': clusterable_presenter.index_path,
+        is_expected.to include(
           'metrics-endpoint': clusterable_presenter.metrics_cluster_path(cluster, format: :json),
-          'dashboard-endpoint': clusterable_presenter.metrics_dashboard_path(cluster),
-          'documentation-path': help_page_path('user/project/clusters/index', anchor: 'monitoring-your-kubernetes-cluster'),
-          'empty-getting-started-svg-path': match_asset_path('/assets/illustrations/monitoring/getting_started.svg'),
-          'empty-loading-svg-path': match_asset_path('/assets/illustrations/monitoring/loading.svg'),
-          'empty-no-data-svg-path': match_asset_path('/assets/illustrations/monitoring/no_data.svg'),
-          'empty-unable-to-connect-svg-path': match_asset_path('/assets/illustrations/monitoring/unable_to_connect.svg'),
-          'settings-path': '',
-          'project-path': '',
-          'tags-path': '',
           'alerts-endpoint': '/',
           'prometheus-alerts-available': 'true'
         )

ee/spec/presenters/ee/instance_clusterable_presenter_spec.rb

@@ -14,10 +14,4 @@ RSpec.describe InstanceClusterablePresenter do
 
     it { is_expected.to eq(metrics_admin_cluster_path(cluster)) }
   end
-
-  describe '#metrics_dashboard_path' do
-    subject { presenter.metrics_dashboard_path(cluster) }
-
-    it { is_expected.to eq(metrics_dashboard_admin_cluster_path(cluster)) }
-  end
 end

ee/spec/presenters/group_clusterable_presenter_spec.rb

@@ -40,10 +40,4 @@ RSpec.describe GroupClusterablePresenter do
       it { is_expected.to be_nil }
     end
   end
-
-  describe '#metrics_dashboard_path' do
-    subject { presenter.metrics_dashboard_path(cluster) }
-
-    it { is_expected.to eq(metrics_dashboard_group_cluster_path(group, cluster)) }
-  end
 end

ee/spec/presenters/project_clusterable_presenter_spec.rb

@@ -14,10 +14,4 @@ RSpec.describe ProjectClusterablePresenter do
 
     it { is_expected.to eq(metrics_project_cluster_path(project, cluster)) }
   end
-
-  describe '#metrics_dashboard_path' do
-    subject { presenter.metrics_dashboard_path(cluster) }
-
-    it { is_expected.to eq(metrics_dashboard_project_cluster_path(project, cluster)) }
-  end
 end

ee/spec/support/shared_examples/controllers/cluster_metrics_shared_examples.rb

@@ -74,21 +74,6 @@ RSpec.shared_examples 'cluster metrics' do
     end
   end
 
-  shared_examples 'the default dashboard' do
-    it 'returns a json object with the correct keys' do
-      get :metrics_dashboard, params: metrics_params, format: :json
-
-      expect(response).to have_gitlab_http_status(:ok)
-      expect(json_response.keys).to contain_exactly('dashboard', 'status', 'metrics_data')
-    end
-
-    it 'is the default dashboard' do
-      get :metrics_dashboard, params: metrics_params, format: :json
-
-      expect(json_response['dashboard']['dashboard']).to eq('Cluster health')
-    end
-  end
-
   private
 
   def go

ee/lib/banzai/filter/inline_cluster_metrics_filter.rb → lib/banzai/filter/inline_cluster_metrics_filter.rb

@@ -6,7 +6,6 @@ module Banzai
       def embed_params(node)
         url = node['href']
         @query_params = query_params(url)
-
         return unless [:group, :title, :y_label].all? do |param|
           @query_params.include?(param)
         end

lib/banzai/filter/inline_metrics_redactor_filter.rb

@@ -77,6 +77,10 @@ module Banzai
           Route.new(
             ::Gitlab::Metrics::Dashboard::Url.grafana_regex,
             :read_project
+          ),
+          Route.new(
+            ::Gitlab::Metrics::Dashboard::Url.clusters_regex,
+            :read_cluster
           )
         ]
       end

lib/banzai/pipeline/gfm_pipeline.rb

@@ -48,7 +48,8 @@ module Banzai
       def self.metrics_filters
         [
           Filter::InlineMetricsFilter,
-          Filter::InlineGrafanaMetricsFilter
+          Filter::InlineGrafanaMetricsFilter,
+          Filter::InlineClusterMetricsFilter
         ]
       end
 

spec/controllers/admin/clusters_controller_spec.rb

@@ -171,6 +171,16 @@ RSpec.describe Admin::ClustersController do
     end
   end
 
+  it_behaves_like 'GET #metrics_dashboard for dashboard', 'Cluster health' do
+    let(:cluster) { create(:cluster, :instance, :provided_by_gcp) }
+
+    let(:metrics_dashboard_req_params) do
+      {
+        id: cluster.id
+      }
+    end
+  end
+
   describe 'GET #prometheus_proxy' do
     let(:user) { admin }
     let(:proxyable) do

spec/controllers/groups/clusters_controller_spec.rb

@@ -192,6 +192,17 @@ RSpec.describe Groups::ClustersController do
     end
   end
 
+  it_behaves_like 'GET #metrics_dashboard for dashboard', 'Cluster health' do
+    let(:cluster) { create(:cluster, :provided_by_gcp, cluster_type: :group_type, groups: [group]) }
+
+    let(:metrics_dashboard_req_params) do
+      {
+        id: cluster.id,
+        group_id: group.name
+      }
+    end
+  end
+
   describe 'GET #prometheus_proxy' do
     let(:proxyable) do
       create(:cluster, :provided_by_gcp, cluster_type: :group_type, groups: [group])

spec/controllers/projects/clusters_controller_spec.rb

@@ -230,6 +230,18 @@ RSpec.describe Projects::ClustersController do
     end
   end
 
+  it_behaves_like 'GET #metrics_dashboard for dashboard', 'Cluster health' do
+    let(:cluster) { create(:cluster, :provided_by_gcp, projects: [project]) }
+
+    let(:metrics_dashboard_req_params) do
+      {
+        id: cluster.id,
+        namespace_id: project.namespace.full_path,
+        project_id: project.name
+      }
+    end
+  end
+
   describe 'POST create for new cluster' do
     let(:legacy_abac_param) { 'true' }
     let(:params) do

spec/features/markdown/metrics_spec.rb

@@ -2,8 +2,9 @@
 
 require 'spec_helper'
 
-RSpec.describe 'Metrics rendering', :js, :use_clean_rails_memory_store_caching, :sidekiq_inline do
+RSpec.describe 'Metrics rendering', :js, :kubeclient, :use_clean_rails_memory_store_caching, :sidekiq_inline do
   include PrometheusHelpers
+  include KubernetesHelpers
   include GrafanaApiHelpers
   include MetricsDashboardUrlHelpers
 
@@ -166,6 +167,41 @@ RSpec.describe 'Metrics rendering', :js, :use_clean_rails_memory_store_caching,
     end
   end
 
+  context 'for GitLab embedded cluster health metrics' do
+    before do
+      project.add_maintainer(user)
+      import_common_metrics
+      stub_any_prometheus_request_with_response
+
+      allow(Prometheus::ProxyService).to receive(:new).and_call_original
+
+      create(:clusters_applications_prometheus, :installed, cluster: cluster)
+      stub_kubeclient_discover(cluster.platform.api_url)
+      stub_prometheus_request(/prometheus-prometheus-server/, body: prometheus_values_body)
+      stub_prometheus_request(/prometheus\/api\/v1/, body: prometheus_values_body)
+    end
+
+    let_it_be(:cluster) { create(:cluster, :provided_by_gcp, :project, projects: [project], user: user) }
+    let(:params) { [project.namespace.path, project.path, cluster.id] }
+    let(:query_params) { { group: 'Cluster Health', title: 'CPU Usage', y_label: 'CPU (cores)' } }
+    let(:metrics_url) { urls.namespace_project_cluster_url(*params, **query_params) }
+    let(:description) { "# Summary \n[](#{metrics_url})" }
+
+    it 'shows embedded metrics' do
+      visit project_issue_path(project, issue)
+
+      expect(page).to have_css('div.prometheus-graph')
+      expect(page).to have_text(query_params[:title])
+      expect(page).to have_text(query_params[:y_label])
+      expect(page).not_to have_text(metrics_url)
+
+      expect(Prometheus::ProxyService)
+        .to have_received(:new)
+              .with(cluster, 'GET', 'query_range', hash_including('start', 'end', 'step'))
+              .at_least(:once)
+    end
+  end
+
   def import_common_metrics
     ::Gitlab::DatabaseImporters::CommonMetrics::Importer.new.execute
   end

ee/spec/lib/banzai/filter/inline_cluster_metrics_filter_spec.rb → spec/lib/banzai/filter/inline_cluster_metrics_filter_spec.rb

@@ -9,7 +9,7 @@ RSpec.describe Banzai::Filter::InlineClusterMetricsFilter do
   let!(:project) { create(:project) }
   let(:params) { [project.namespace.path, project.path, cluster.id] }
   let(:query_params) { { group: 'Food metrics', title: 'Pizza Consumption', y_label: 'Slice Count' } }
-  let(:trigger_url) { urls.metrics_namespace_project_cluster_url(*params, **query_params) }
+  let(:trigger_url) { urls.namespace_project_cluster_url(*params, **query_params) }
   let(:dashboard_url) do
     urls.metrics_dashboard_namespace_project_cluster_url(
       *params,

spec/lib/banzai/filter/inline_metrics_redactor_filter_spec.rb

@@ -29,6 +29,26 @@ RSpec.describe Banzai::Filter::InlineMetricsRedactorFilter do
       it_behaves_like 'retains the embed placeholder when applicable'
     end
 
+    context 'for a cluster metric embed' do
+      let_it_be(:cluster) { create(:cluster, :provided_by_gcp, :project, projects: [project]) }
+      let(:params) { [project.namespace.path, project.path, cluster.id] }
+      let(:query_params) { { group: 'Cluster Health', title: 'CPU Usage', y_label: 'CPU (cores)' } }
+      let(:url) { urls.metrics_dashboard_namespace_project_cluster_url(*params, **query_params) }
+
+      context 'with user who can read cluster' do
+        it_behaves_like 'redacts the embed placeholder'
+        it_behaves_like 'retains the embed placeholder when applicable'
+      end
+
+      context 'without user who can read cluster' do
+        let(:doc) { filter(input, current_user: create(:user)) }
+
+        it 'redacts the embed placeholder' do
+          expect(doc.to_s).to be_empty
+        end
+      end
+    end
+
     context 'the user has requisite permissions' do
       let(:user) { create(:user) }
       let(:doc) { filter(input, current_user: user) }

spec/presenters/clusters/cluster_presenter_spec.rb

@@ -249,4 +249,44 @@ RSpec.describe Clusters::ClusterPresenter do
       it { is_expected.to be_truthy }
     end
   end
+
+  describe '#health_data' do
+    shared_examples 'cluster health data' do
+      let(:user) { create(:user) }
+      let(:cluster_presenter) { cluster.present(current_user: user) }
+
+      let(:clusterable_presenter) do
+        ClusterablePresenter.fabricate(clusterable, current_user: user)
+      end
+
+      subject { cluster_presenter.health_data(clusterable_presenter) }
+
+      it do
+        is_expected.to include('clusters-path': clusterable_presenter.index_path,
+                             'dashboard-endpoint': clusterable_presenter.metrics_dashboard_path(cluster),
+                             'documentation-path': help_page_path('user/project/clusters/index', anchor: 'monitoring-your-kubernetes-cluster-ultimate'),
+                             'empty-getting-started-svg-path': match_asset_path('/assets/illustrations/monitoring/getting_started.svg'),
+                             'empty-loading-svg-path': match_asset_path('/assets/illustrations/monitoring/loading.svg'),
+                             'empty-no-data-svg-path': match_asset_path('/assets/illustrations/monitoring/no_data.svg'),
+                             'empty-unable-to-connect-svg-path': match_asset_path('/assets/illustrations/monitoring/unable_to_connect.svg'),
+                             'settings-path': '',
+                             'project-path': '',
+                             'tags-path': '')
+      end
+    end
+
+    context 'with project cluster' do
+      let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+      let(:clusterable) { cluster.project }
+
+      it_behaves_like 'cluster health data'
+    end
+
+    context 'with group cluster' do
+      let(:cluster) { create(:cluster, :group, :provided_by_gcp) }
+      let(:clusterable) { cluster.group }
+
+      it_behaves_like 'cluster health data'
+    end
+  end
 end

spec/presenters/group_clusterable_presenter_spec.rb

@@ -94,4 +94,10 @@ RSpec.describe GroupClusterablePresenter do
 
     it { is_expected.to eq(group_cluster_path(group, cluster)) }
   end
+
+  describe '#metrics_dashboard_path' do
+    subject { presenter.metrics_dashboard_path(cluster) }
+
+    it { is_expected.to eq(metrics_dashboard_group_cluster_path(group, cluster)) }
+  end
 end

spec/presenters/instance_clusterable_presenter_spec.rb

@@ -26,4 +26,10 @@ RSpec.describe InstanceClusterablePresenter do
 
     it { is_expected.to eq(clear_cache_admin_cluster_path(cluster)) }
   end
+
+  describe '#metrics_dashboard_path' do
+    subject { presenter.metrics_dashboard_path(cluster) }
+
+    it { is_expected.to eq(metrics_dashboard_admin_cluster_path(cluster)) }
+  end
 end

spec/presenters/project_clusterable_presenter_spec.rb

@@ -94,4 +94,10 @@ RSpec.describe ProjectClusterablePresenter do
 
     it { is_expected.to eq(project_cluster_path(project, cluster)) }
   end
+
+  describe '#metrics_dashboard_path' do
+    subject { presenter.metrics_dashboard_path(cluster) }
+
+    it { is_expected.to eq(metrics_dashboard_project_cluster_path(project, cluster)) }
+  end
 end

spec/support/shared_examples/controllers/metrics_dashboard_shared_examples.rb

@@ -4,7 +4,8 @@ RSpec.shared_examples_for 'GET #metrics_dashboard correctly formatted response'
   it 'returns a json object with the correct keys' do
     get :metrics_dashboard, params: metrics_dashboard_req_params, format: :json
 
-    # Exlcude `all_dashboards` to handle separately.
+    # Exclude `all_dashboards` to handle separately, at spec/controllers/projects/environments_controller_spec.rb:565
+    # because `all_dashboards` key is not part of expected shared behavior
     found_keys = json_response.keys - ['all_dashboards']
 
     expect(response).to have_gitlab_http_status(status_code)