Don't require a .dbconfig file on any masters.

masters/master.chromium.gatekeeper/master.cfg

 # -*- python -*-
 # vim: ft=python:
 
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 
 from buildbot.scheduler import Nightly
 
 from master import build_utils
 from master import master_utils
 from master import slaves_list
 from master.factory import annotator_factory
 
 import config
 import master_site_config
 
 ActiveMaster = master_site_config.Gatekeeper
 
 MAIL_NOTIFIER = False
 
 c = BuildmasterConfig = {}
 
 c['slavePortnum'] = ActiveMaster.slave_port
 
-config.DatabaseSetup(c, require_dbconfig=ActiveMaster.is_production_host)
+config.DatabaseSetup(c)
 
 ####### SCHEDULERS
 
 # Actually 'Minutely' instead of 'Nightly.' It kicks off a run every minute.
 s_chromium_gatekeeper = Nightly(name='gatekeeper',
                                 branch=None,
                                 minute='*',
                                 builderNames=['Chromium Gatekeeper',
                                               'Chromium Gatekeeper Failure'])
 
@@ skipping 52 matching lines @@
 
 master_utils.AutoSetupMaster(c, ActiveMaster, MAIL_NOTIFIER)
 
 # Do it at the end to override values set by AutoSetupMaster, the default is
 # too low. Must keep at least a few days worth of builds.
 c['buildHorizon'] = 3000
 c['logHorizon'] = 3000
 # Must be at least 2x the number of slaves.
 c['eventHorizon'] = 200