Don't index unnecessary data into elastic

CHANGELOG-EE

@@ -6,6 +6,7 @@ v 8.5.0 (unreleased)
   - GitLab Pages gets support for custom domain and custom certificate
   - Fix of Elastic indexer. It should not trigger record validation for projects
   - Fix of Elastic indexer. Stabilze indexer when serialized data is corrupted
+  - [Elastic] Don't index unnecessary data into elastic
 
 v 8.4.4
   - Re-introduce "Send email to users" link in Admin area

lib/elastic/projects_search.rb

@@ -29,7 +29,20 @@ module Elastic
       end
 
       def as_indexed_json(options = {})
-        as_json(except: :runners_token).merge({
+        as_json({
+          only: [
+            :id,
+            :name,
+            :path,
+            :description,
+            :namespace_id,
+            :created_at,
+            :archived,
+            :visibility_level,
+            :last_activity_at,
+            :last_pushed_at
+          ]
+        }).merge({
           name_with_namespace: name_with_namespace,
           path_with_namespace: path_with_namespace
         })

lib/elastic/snippets_search.rb

@@ -28,12 +28,23 @@ module Elastic
       end
 
       def as_indexed_json(options = {})
-        as_json(
+        as_json({
+          only: [
+            :id,
+            :title,
+            :file_name,
+            :content,
+            :created_at,
+            :updated_at,
+            :state,
+            :project_id,
+            :author_id,
+          ],
           include: {
             project:  { only: :id },
             author:   { only: :id }
           }
-        )
+        })
       end
 
       def self.elastic_search(query, options: {})