Updates CE backport

lib/gitlab/prometheus/metric.rb

@@ -3,7 +3,7 @@ module Gitlab
     class Metric
       include ActiveModel::Model
-      attr_accessor :title, :required_metrics, :weight, :y_label, :queries
+      attr_accessor :id, :title, :required_metrics, :weight, :y_label, :queries
       validates :title, :required_metrics, :weight, :y_label, :queries, presence: true

lib/gitlab/prometheus/queries/query_additional_metrics.rb

@@ -14,12 +14,16 @@ module Gitlab
           lambda do |group|
             metrics = group.metrics.map do |metric|
-              {
+              metric_hsh = {
                 title: metric.title,
                 weight: metric.weight,
                 y_label: metric.y_label,
                 queries: metric.queries.map(&query_processor).select(&method(:query_with_result))
               }
+
+              metric_hsh[:id] = metric.id if metric.id
+
+              metric_hsh
             end
             {

spec/models/clusters/applications/prometheus_spec.rb

@@ -41,37 +41,37 @@ describe Clusters::Applications::Prometheus do
     it 'returns true when installed' do
       application = build(:clusters_applications_prometheus, :installed, cluster: cluster)
-      expect(application.ready?).to be true
+      expect(application).to be_ready
     end
     it 'returns false when not_installable' do
       application = build(:clusters_applications_prometheus, :not_installable, cluster: cluster)
-      expect(application.ready?).to be false
+      expect(application).not_to be_ready
     end
     it 'returns false when installable' do
       application = build(:clusters_applications_prometheus, :installable, cluster: cluster)
-      expect(application.ready?).to be false
+      expect(application).not_to be_ready
     end
     it 'returns false when scheduled' do
       application = build(:clusters_applications_prometheus, :scheduled, cluster: cluster)
-      expect(application.ready?).to be false
+      expect(application).not_to be_ready
     end
     it 'returns false when installing' do
       application = build(:clusters_applications_prometheus, :installing, cluster: cluster)
-      expect(application.ready?).to be false
+      expect(application).not_to be_ready
     end
     it 'returns false when errored' do
       application = build(:clusters_applications_prometheus, :errored, cluster: cluster)
-      expect(application.ready?).to be false
+      expect(application).not_to be_ready
     end
   end