Show custom attributes within Admin Pages

Closes #23652

app/views/admin/groups/show.html.haml

@@ -59,6 +59,8 @@
 
         = render_if_exists 'namespaces/shared_runner_status', namespace: @group
 
+    = render 'shared/custom_attributes', custom_attributes: @group.custom_attributes
+
     = render_if_exists 'ldap_group_links/ldap_group_links_show', group: @group
 
     .card

app/views/admin/projects/show.html.haml

@@ -108,6 +108,8 @@
               = visibility_level_icon(@project.visibility_level)
               = visibility_level_label(@project.visibility_level)
 
+    = render 'shared/custom_attributes', custom_attributes: @project.custom_attributes
+
     = render_if_exists 'admin/projects/geo_status_widget', locals: { project: @project }
 
     .card

app/views/admin/users/show.html.haml

@@ -141,6 +141,8 @@
 
         = render_if_exists 'namespaces/shared_runner_status', namespace: @user.namespace
 
+    = render 'shared/custom_attributes', custom_attributes: @user.custom_attributes
+
   .col-md-6
     - unless @user == current_user
       - unless @user.confirmed?

app/views/shared/_custom_attributes.html.haml

+- return unless custom_attributes.present?
+
+.card
+  .card-header
+    = link_to(_('Custom Attributes'), help_page_path('api/custom_attributes.md'))
+  %ul.content-list
+    - custom_attributes.each do |custom_attribute|
+      %li
+        %span.light
+          = custom_attribute.key
+        %strong
+          = custom_attribute.value

changelogs/unreleased/feat-admin-pages-show-custom-attributes.yml

+---
+title: Show custom attributes within Admin Pages
+merge_request: 34017
+author: Roger Meier
+type: added

locale/gitlab.pot

@@ -6675,6 +6675,9 @@ msgstr ""
 msgid "CurrentUser|Upgrade"
 msgstr ""
 
+msgid "Custom Attributes"
+msgstr ""
+
 msgid "Custom CI configuration path"
 msgstr ""