Only display Geo button when in a Geo secondary node

This shared view is used by the Wiki clone screen and also by GitLab
when in mobile version.

app/views/shared/_clone_panel.html.haml

@@ -24,6 +24,6 @@
   .input-group-append
     = clipboard_button(target: '#project_clone', title: _("Copy URL to clipboard"), class: "input-group-text btn-default btn-clipboard")
 
-    = geo_button(modal_target: '#modal-geo-info')
+    = geo_button(modal_target: '#modal-geo-info') if Gitlab::Geo.secondary?
 
 = render 'shared/geo_info_modal', project: project if Gitlab::Geo.secondary?

ee/changelogs/unreleased/10398-geo-clone-button-should-check-for-geo.yml

+---
+title: 'Geo: Only display Geo-specific clone instructions button on a Geo Secondary
+  node'
+merge_request: 10007
+author:
+type: fixed

spec/views/shared/_clone_panel.html.haml_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'shared/_clone_panel' do
+  include EE::GeoHelpers
+
+  set(:primary) { create(:geo_node, :primary) }
+  set(:secondary) { create(:geo_node) }
+  set(:project) { create(:project) }
+
+  shared_examples 'has no geo-specific instructions' do
+    it 'has no geo-specific instructions' do
+      render 'shared/clone_panel', project: project
+
+      expect(rendered).not_to match /See Geo-specific instructions/
+    end
+  end
+
+  context 'without Geo enabled' do
+    it_behaves_like 'has no geo-specific instructions'
+  end
+
+  context 'On a Geo primary node' do
+    before do
+      stub_current_geo_node(primary)
+    end
+
+    it_behaves_like 'has no geo-specific instructions'
+  end
+
+  context 'On a Geo secondary node' do
+    before do
+      stub_current_geo_node(secondary)
+    end
+
+    it 'renders Geo-specific instructions button' do
+      render 'shared/clone_panel', project: project
+
+      expect(rendered).to match /See Geo-specific instructions/
+    end
+  end
+end