Report data from secondary_usage_data in geo_node_status

Relates to https://gitlab.com/gitlab-org/gitlab/issues/298781

ee/app/models/geo_node_status.rb

@@ -55,6 +55,10 @@ class GeoNodeStatus < ApplicationRecord
     end.flatten.map(&:to_s)
   end
 
+  def self.usage_data_fields
+    Geo::SecondaryUsageData::PAYLOAD_COUNT_FIELDS
+  end
+
   RESOURCE_STATUS_FIELDS = (%w(
     repository_verification_enabled
     repositories_replication_enabled
@@ -103,7 +107,7 @@ class GeoNodeStatus < ApplicationRecord
     design_repositories_count
     design_repositories_synced_count
     design_repositories_failed_count
-  ) + replicator_class_status_fields).freeze
+  ) + replicator_class_status_fields + usage_data_fields).freeze
 
   # Why are disabled classes included? See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/38959#note_402656534
   def self.replicator_class_prometheus_metrics
@@ -276,7 +280,7 @@ class GeoNodeStatus < ApplicationRecord
     return if val.nil?
 
     case attr_name
-    when /_count\z/ then val.to_i
+    when /_count(?:_weekly)?\z/ then val.to_i
     when /_enabled\z/ then val.to_s == 'true'
     else raise "Unhandled status attribute name format \"#{attr_name}\""
     end
@@ -480,6 +484,7 @@ class GeoNodeStatus < ApplicationRecord
     load_container_registry_data
     load_designs_data
     load_ssf_replicable_data
+    load_secondary_usage_data
   end
 
   def load_repositories_data
@@ -547,6 +552,15 @@ class GeoNodeStatus < ApplicationRecord
     end
   end
 
+  def load_secondary_usage_data
+    usage_data = Geo::SecondaryUsageData.last
+    return unless usage_data
+
+    self.class.usage_data_fields.each do |field|
+      status[field] = usage_data.payload[field]
+    end
+  end
+
   def load_repository_check_data
     if Gitlab::Geo.primary?
       self.repositories_checked_count = Project.where.not(last_repository_check_at: nil).count

ee/spec/factories/geo_node_statuses.rb

@@ -68,6 +68,10 @@ FactoryBot.define do
       GeoNodeStatus.replicator_class_status_fields.each do |field|
         send(field) { rand(10000) }
       end
+
+      Geo::SecondaryUsageData::PAYLOAD_COUNT_FIELDS.each do |field|
+        send(field) { rand(10000) }
+      end
     end
 
     trait :replicated_and_verified do

ee/spec/fixtures/api/schemas/public_api/v4/geo_node_status.json

@@ -127,6 +127,7 @@
     "replication_slots_used_count",
     "replication_slots_used_in_percentage",
     "replication_slots_max_retained_wal_bytes",
+    "git_fetch_event_count_weekly",
     "last_event_id",
     "last_event_timestamp",
     "cursor_last_event_id",
@@ -272,6 +273,7 @@
     "replication_slots_used_count": { "type": ["integer", "null"] },
     "replication_slots_used_in_percentage": { "type": "string" },
     "replication_slots_max_retained_wal_bytes": { "type": ["integer", "null"] },
+    "git_fetch_event_count_weekly": { "type": ["integer", "null"] },
     "last_event_id": { "type": ["integer", "null"] },
     "last_event_timestamp": { "type": ["integer", "null"] },
     "cursor_last_event_id": { "type": ["integer", "null"] },

ee/spec/models/geo_node_status_spec.rb

@@ -1156,6 +1156,28 @@ RSpec.describe GeoNodeStatus, :geo do
     end
   end
 
+  context 'secondary usage data' do
+    shared_examples_for 'a field from secondary_usage_data' do |field|
+      describe '#load_secondary_usage_data' do
+        it 'loads the latest data from Geo::SecondaryUsageData' do
+          data = create(:geo_secondary_usage_data)
+
+          expect(described_class.current_node_status.status[field]).to eq(data.payload[field])
+        end
+
+        it 'reports nil if there is no collected data in Geo::SecondaryUsageData' do
+          expect(status.status[field]).to be_nil
+        end
+      end
+    end
+
+    described_class.usage_data_fields.each do |field|
+      context "##{field}" do
+        it_behaves_like 'a field from secondary_usage_data', field
+      end
+    end
+  end
+
   context 'Replicator stats' do
     where(:replicator, :model_factory, :registry_factory) do
       Geo::MergeRequestDiffReplicator      | :external_merge_request_diff | :geo_merge_request_diff_registry