Add support for custom domains to the internal Pages API

Update the `/internal/pages` endpoint to return virtual domain
configuration for custom domains.

2 files changed, 25 insertions, 1 deletions

diff --git a/lib/api/entities/internal.rb b/lib/api/entities/internal.rb
new file mode 100644
index 00000000000..8f79bd14833
--- /dev/null
+++ b/lib/api/entities/internal.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module API
+  module Entities
+    module Internal
+      module Pages
+        class LookupPath < Grape::Entity
+          expose :project_id, :access_control,
+            :source, :https_only, :prefix
+        end
+
+        class VirtualDomain < Grape::Entity
+          expose :certificate, :key
+          expose :lookup_paths, using: LookupPath
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/internal/pages.rb b/lib/api/internal/pages.rb
index 6ea048bde03..eaa434cff51 100644
--- a/lib/api/internal/pages.rb
+++ b/lib/api/internal/pages.rb
@@ -18,7 +18,12 @@ module API
       namespace 'internal' do
         namespace 'pages' do
           get "/" do
-            status :ok
+            host = PagesDomain.find_by_domain(params[:host])
+            not_found! unless host
+
+            virtual_domain = host.pages_virtual_domain
+
+            present virtual_domain, with: Entities::Internal::Pages::VirtualDomain
           end
         end
       end