Geo: Fix repository verification on the primary

And any future usage of `geo_uncached_queries` on the primary.

ee/changelogs/unreleased/mk-fix-primary-verification.yml

+---
+title: 'Geo: Fix repository verification on the primary'
+merge_request: 28893
+author:
+type: fixed

ee/lib/ee/gitlab/database.rb

@@ -25,11 +25,13 @@ module EE
           ActiveRecord::Base.establish_connection(config)
         end
 
-        def geo_uncached_queries
+        def geo_uncached_queries(&block)
           raise 'No block given' unless block_given?
 
-          Geo::TrackingBase.uncached do
           ActiveRecord::Base.uncached do
+            if ::Gitlab::Geo.secondary?
+              Geo::TrackingBase.uncached(&block)
+            else
               yield
             end
           end

ee/spec/lib/ee/gitlab/database_spec.rb

@@ -3,6 +3,8 @@
 require 'spec_helper'
 
 describe Gitlab::Database do
+  include ::EE::GeoHelpers
+
   describe '.read_only?' do
     context 'with Geo enabled' do
       before do
@@ -64,4 +66,56 @@ describe Gitlab::Database do
       expect(config['prepared_statements']).to eq(false)
     end
   end
+
+  describe '.geo_uncached_queries' do
+    context 'when no block is given' do
+      it 'raises error' do
+        expect do
+          described_class.geo_uncached_queries
+        end.to raise_error('No block given')
+      end
+    end
+
+    context 'when the current node is a primary' do
+      let!(:primary) { create(:geo_node, :primary) }
+
+      it 'wraps the block in an ActiveRecord::Base.uncached block' do
+        stub_current_geo_node(primary)
+
+        expect(Geo::TrackingBase).not_to receive(:uncached)
+        expect(ActiveRecord::Base).to receive(:uncached).and_call_original
+
+        expect do |b|
+          described_class.geo_uncached_queries(&b)
+        end.to yield_control
+      end
+    end
+
+    context 'when the current node is a secondary' do
+      let!(:primary) { create(:geo_node, :primary) }
+      let!(:secondary) { create(:geo_node) }
+
+      it 'wraps the block in a Geo::TrackingBase.uncached block and an ActiveRecord::Base.uncached block' do
+        stub_current_geo_node(secondary)
+
+        expect(Geo::TrackingBase).to receive(:uncached).and_call_original
+        expect(ActiveRecord::Base).to receive(:uncached).and_call_original
+
+        expect do |b|
+          described_class.geo_uncached_queries(&b)
+        end.to yield_control
+      end
+    end
+
+    context 'when there is no current node' do
+      it 'wraps the block in an ActiveRecord::Base.uncached block' do
+        expect(Geo::TrackingBase).not_to receive(:uncached)
+        expect(ActiveRecord::Base).to receive(:uncached).and_call_original
+
+        expect do |b|
+          described_class.geo_uncached_queries(&b)
+        end.to yield_control
+      end
+    end
+  end
 end