Add worker which removes expired members.

app/workers/remove_expired_members_worker.rb

+class RemoveExpiredMembersWorker
+  include Sidekiq::Worker
+
+  def perform
+    Member.includes(:created_by).where("expires_at <= ?", Time.current).find_each do |member|
+      begin
+        Members::DestroyService.new(member, member.created_by).execute
+      rescue => ex
+        logger.error("Expired Member ID=#{member.id} cannot be removed - #{ex}")
+      end
+    end
+  end
+end

config/initializers/1_settings.rb

@@ -293,6 +293,9 @@ Settings.cron_jobs['gitlab_remove_project_export_worker']['job_class'] = 'Gitlab
 Settings.cron_jobs['requests_profiles_worker'] ||= Settingslogic.new({})
 Settings.cron_jobs['requests_profiles_worker']['cron'] ||= '0 0 * * *'
 Settings.cron_jobs['requests_profiles_worker']['job_class'] = 'RequestsProfilesWorker'
+Settings.cron_jobs['remove_expired_members_worker'] ||= Settingslogic.new({})
+Settings.cron_jobs['remove_expired_members_worker']['cron'] ||= '10 0 * * *'
+Settings.cron_jobs['remove_expired_members_worker']['job_class'] = 'RemoveExpiredMembersWorker'
 
 #
 # GitLab Shell