Hide instance statistics on new installations

Making the migrations and the default do the right thing in the first
place. This makes 20180806094307 a no-op.

app/models/application_setting.rb

@@ -297,7 +297,7 @@ class ApplicationSetting < ActiveRecord::Base
       unique_ips_limit_per_user: 10,
       unique_ips_limit_time_window: 3600,
       usage_ping_enabled: Settings.gitlab['usage_ping_enabled'],
-      instance_statistics_visibility_private: false,
+      instance_statistics_visibility_private: true,
       user_default_external: false
     }
   end

db/migrate/20180718005113_add_instance_statistics_visibility_to_application_setting.rb

@@ -10,7 +10,7 @@ class AddInstanceStatisticsVisibilityToApplicationSetting < ActiveRecord::Migrat
   def up
     add_column_with_default(:application_settings, :instance_statistics_visibility_private,
                             :boolean,
-                            default: false,
+                            default: true,
                             allow_null: false)
   end

spec/features/dashboard/active_tab_spec.rb

@@ -35,6 +35,10 @@ RSpec.describe 'Dashboard Active Tab', :js do
   context 'on instance statistics' do
     subject { visit instance_statistics_root_path }
+    before do
+      stub_application_setting(instance_statistics_visibility_private: false)
+    end
+
     it 'shows Instance Statistics` as active' do
       subject

spec/policies/global_policy_spec.rb

@@ -183,7 +183,13 @@ describe GlobalPolicy do
   describe 'read instance statistics' do
     context 'regular user' do
-      it { is_expected.to be_allowed(:read_instance_statistics) }
+      context 'when instance statistics are publicly available' do
+        before do
+          stub_application_setting(instance_statistics_visibility_private: false)
+        end
+
+        it { is_expected.to be_allowed(:read_instance_statistics) }
+      end
       context 'when instance statistics are set to private' do
         before do
@@ -197,7 +203,13 @@ describe GlobalPolicy do
     context 'admin' do
       let(:current_user) { create(:admin) }
-      it { is_expected.to be_allowed(:read_instance_statistics) }
+      context 'when instance statistics are publicly available' do
+        before do
+          stub_application_setting(instance_statistics_visibility_private: false)
+        end
+
+        it { is_expected.to be_allowed(:read_instance_statistics) }
+      end
       context 'when instance statistics are set to private' do
         before do

spec/requests/api/settings_spec.rb

@@ -25,7 +25,7 @@ describe API::Settings, 'Settings' do
       expect(json_response['ed25519_key_restriction']).to eq(0)
       expect(json_response['circuitbreaker_failure_count_threshold']).not_to be_nil
       expect(json_response['performance_bar_allowed_group_id']).to be_nil
-      expect(json_response['instance_statistics_visibility_private']).to be(false)
+      expect(json_response['instance_statistics_visibility_private']).to be(true)
       expect(json_response).not_to have_key('performance_bar_allowed_group_path')
       expect(json_response).not_to have_key('performance_bar_enabled')
     end

spec/support/shared_examples/instance_statistics_controllers_shared_examples.rb

@@ -9,6 +9,8 @@ shared_examples 'instance statistics availability' do
   describe 'GET #index' do
     it 'is available when the feature is available publicly' do
+      stub_application_setting(instance_statistics_visibility_private: false)
+
       get :index
       expect(response).to have_gitlab_http_status(:success)