Run gitlab-ctl reconfigure after replication

On the Geo secondary, we need to re-run
gitlab-ctl reconfigure on the secondary,
otherwise FDW does not work.

Re-order Geo QA secondary functions
So they more closely match execution order.

Unquarantine the Geo attachment test

qa/qa/ee/scenario/test/geo.rb

@@ -34,6 +34,7 @@ module QA
 
               Geo::Secondary.act do
                 replicate_database
+                reconfigure
                 wait_for_services
                 authorize
               end
@@ -106,19 +107,6 @@ module QA
               @name = QA::Runtime::Scenario.geo_secondary_name
             end
 
-            def authorize
-              # Provide OAuth authorization now so that tests don't have to
-              QA::Runtime::Browser.visit(:geo_secondary, QA::Page::Main::Login) do
-                QA::Page::Main::Login.perform(&:sign_in_using_credentials)
-                QA::Page::Main::OAuth.perform do |oauth|
-                  oauth.authorize! if oauth.needs_authorization?
-                end
-
-                # Log out so that tests are in an initially unauthenticated state
-                QA::Page::Main::Menu.perform(&:sign_out)
-              end
-            end
-
             def replicate_database
               puts 'Starting Geo replication on secondary node ...'
 
@@ -133,6 +121,17 @@ module QA
               end
             end
 
+            def reconfigure
+              # Without this step, the /var/opt/gitlab/postgresql/data/pg_hba.conf
+              # that is left behind from 'gitlab_ctl "replicate-geo-database ..'
+              # does not allow FDW to work.
+              puts 'Reconfiguring ...'
+
+              QA::Service::Omnibus.new(@name).act do
+                gitlab_ctl 'reconfigure'
+              end
+            end
+
             def wait_for_services
               puts 'Waiting until secondary node services are ready ...'
 
@@ -156,6 +155,19 @@ module QA
                 raise "Secondary node did not start correctly in #{Time.now - start} seconds!"
               end
             end
+
+            def authorize
+              # Provide OAuth authorization now so that tests don't have to
+              QA::Runtime::Browser.visit(:geo_secondary, QA::Page::Main::Login) do
+                QA::Page::Main::Login.perform(&:sign_in_using_credentials)
+                QA::Page::Main::OAuth.perform do |oauth|
+                  oauth.authorize! if oauth.needs_authorization?
+                end
+
+                # Log out so that tests are in an initially unauthenticated state
+                QA::Page::Main::Menu.perform(&:sign_out)
+              end
+            end
           end
         end
       end

qa/qa/specs/features/browser_ui/ee_geo/attachment_replication_spec.rb

 # frozen_string_literal: true
 
 module QA
-  # https://gitlab.com/gitlab-org/quality/nightly/issues/109
-  context 'Geo', :orchestrated, :geo, :quarantine do
+  context 'Geo', :orchestrated, :geo do
     describe 'GitLab Geo attachment replication' do
       let(:file_to_attach) { File.absolute_path(File.join('spec', 'fixtures', 'banana_sample.gif')) }