expose group id on home panel

app/views/groups/_home_panel.html.haml

@@ -13,7 +13,7 @@
               = visibility_level_icon(@group.visibility_level, fw: false, options: {class: 'icon'})
         .home-panel-metadata.d-flex.align-items-center.text-secondary
           %span
-            = _("Group")
+            = _("Group ID: %{group_id}") % { group_id: @group.id }
           - if current_user
             %span.access-request-links.prepend-left-8
               = render 'shared/members/access_request_links', source: @group

changelogs/unreleased/expose-group-id-on-home-panel.yml

+---
+title: Expose group id on home panel
+merge_request: 25897
+author: Peter Marko
+type: added

locale/gitlab.pot

@@ -3789,6 +3789,9 @@ msgstr ""
 msgid "Group ID"
 msgstr ""
 
+msgid "Group ID: %{group_id}"
+msgstr ""
+
 msgid "Group Runners"
 msgstr ""
 

spec/views/groups/_home_panel.html.haml_spec.rb

+require 'spec_helper'
+
+describe 'groups/_home_panel' do
+  let(:group) { create(:group) }
+
+  before do
+    assign(:group, group)
+  end
+
+  it 'renders the group ID' do
+    render
+
+    expect(rendered).to have_content("Group ID: #{group.id}")
+  end
+end